HONDA ®

L
3. Maintenance
About this Publication
The GL1500 Service Manual and Electrical Troubleshooting
Manual are combined in this single reference source. This
manual features a seven-ring binder for easy use.
4. Fuel System
Service Manual
The GL1500 Service Manual includes all three 1994 models:
Aspencade, SE, and Interstate. 5. Cooling System
Most service procedures are based on the GL1500 Aspen-
cade model. In those instances where service information for
the SE and/or Interstate model differs, the text identifies the
applicable model or models by the following codes: A
(Aspencade), SE (SE), and I (Interstate).
The GL1500 Service Manual is divided into twenty sections.
The first (index) page of each section is marked with a black
[-":7. ~Cylinde~ H~~Xhaust Syste
symbol tab identical to the tab seen on this page. The section

8.::Crank~ha~;;._t_o_n~_ _~_
symbol also appears at the top of each right-hand page of the
section as a reference aid.
[
Section index pages list the contents of each section and
give specific page references. Except for the Specifications
and General Information sections, "Service Information" fol-
lows each index; be sure to read those few lines before you [ 9. Clutch
start any procedure to avoid any difficulty once you're in the
middle of a job. In most cases a torque reference drawing will
appear in Service Information. Torque values are given in the 10. Transmission
metric standard newton-meters (N-m) and also in foot-
pounds (ft-Ib.) (See page 1-9 for a specific explanation of the

~1.
use of metric equivalents.) A system troubleshooting list fol-
lows the torque reference drawing, and then the service pro- Final Drive
cedures begin.
Wiring information is found in the appropriate section. Refer
to the circuit diagrams in Sections 4,5, 12, 16, 17, 18, 19,20.
Sections 1-3 of this manual apply to the whole motorcycle,
[!""2. Fra~m~sus~en~ion
while sections 4-20 describe parts of the GL1500 grouped
according to location. Refer to the Maintenance Schedule
(Section 3) to know when service is needed to keep the 13. Fairing/Body Suspension
vehicle in peak operating condition and within EPA-estab-
lished emissions standards. The first scheduled mainte-
nance is especially important since it helps compensate for
the initial wear that occurs during the break-in period.
Electrical Troubleshooting Manual (ETM)
The ETM is located after section 20 of the Service Manual.
It includes information for all three models, noting variations ~ 5. WheelslTires
between the models. The manual divides the GL1500's elec-
trical systems into individual sections which include circuit
schematics.
Three handy reference sections appear at the rear of the
ETM: Component Location Photographs, Component Loca-
tion Index (which gives the number of the photograph in
which the component appears), and Component Index 17. Charging
(which lists all pages referring to the component).
All information, illustrations, directions and specifications
included in this publication are based on the latest product
information available at the time of approval for printing.
Honda Motor Co., Ltd. reserves the right to make changes at
any time without notice and without incurring any obligation
whatever. 19. lightsiSwitchesilnstrument:s
No part of this publication may be reproduced without written
permission.

~. AUdi~:
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 General Information
Service Safety .... D • 1..2
• • ••

Model Identification . 1..4

D • ••

Emission Control
Systems D • 1..5
• • ••

Emission Control
Information labels .. .. 1..8
Metric Conversions 1..9
N.P.S. Part Numbers 1..10
Tools 1..11

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 General Information
Service Safety
IMPORTANT SAFETY NOTICE. - - - - - - - - - - - - -
Detailed descriptions of standard workshop procedures, safety principles and service operations are not included. It
is important to note that this manual contains some warnings and cautions against some specific service methods
which could cause PERSONAL INJURY to service personnel or could damage a vehicle or render it unsafe. Please
understand that these warnings could not cover all conceivable ways in which service, whether or not recom-
mended by Honda, might be done or of the possibly hazardous consequences of each conceivable way, nor could
Honda investigate all such ways. Anyone using service procedures or tools, whether or not recommended by
Honda, must satisfy himself thoroughly that neither personal safety nor vehicle safety will be jeopardized by the
service methods or tools selected.

Pay special attention to statements preceded by these CAUTION

symbols .. Indicates a possibility of personal injury or
equipment damage if instructions are not
followed.
o Indicates a strong possibility of severe per-
sonal injury or death if instructions are not NOTE
followed.
$ Gives helpful information.

Some specific warnings and cautions found in this Used Enginerrransmission on

manual follow:
Carbon Monoxide
If the engine must be running to do some work, make
sure the area is well ventilated. Never run the engine in
----------
.. Used engine on (or transmission oil in two-
strokes) may cause skin cancer if repeatedly

--
an enclosed area.

-------_...._--
"The exhaust contains poisonous carbon
monoxide gas that can cause loss of con-
sciommess and may lead to death.
left in contact with the skin for prolonged peri-
ods. Although this is unlikely unless you han-
dle used oU on a daily basis, it is still advisable
to thoroughly wash your hands with soap and
water as soon as possible after handling used
oil. KEEP OUT OF REACH OF CHILDREN.

Battery Hydrogen Gas & Electrolyte

_L..... _
Run the engine in an open area or with an exhaust evac-
uation system in an enclosed area.
Gasoline
Work in a well ventilated area. Keep cigarettes, flames o The battery gives off explosive gases; keep
or sparks away from the work area or where gasoline is sparks, flames and cigarettes away. Provide
stored. adequate ventilation when charging.
" The battery contains sulfuric acid (electrolyte).
Contact with skin or eyes may cause severe
$ Gasoline is extremely flammable and is explo- burns. Wear protective clothing and a face
sive under certain conditions. KEEP OUT OF shield.
REACH OF CHILDREN. - If electrolyte gets on your skin, flush with
water.
Hot Components - If electrolyte gets in your eyes, flush with
water for at least 15 minutes and call a
rBII_.. . _ physician.
" Engine and exhaust system parts become very .. Electrolyte is poisonous
hot and remain hot for some time after the - If swallowed, drink large quantities of water
engine is run. Wear insulated gloves or wait or milk and follow with milk of magnesia or
until the engine and exhaust system have vegetable oil and call a physician. KEEP OUT
cooled before handling these parts. OF REACH OF CHILDREN.

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 Brake Dust Coolant (cont'd)
Brake dust may contain asbestos. Never use an air If coolant contacts your skin, wash the affected areas
hose or dry brush to clean brake assemblies. Use an immediately with soap and water. If it contacts your
OSHA approved vacuum cleaner or alternate method eyes, flush them thoroughly with fresh water and get
approved by OSHA, designed to minimize the hazard immediate medical attention. If it is swallowed, the vic-
caused by airborne asbestos fibers. tim must be forced to vomit then rinse mouth and throat
with fresh water before obtaining medical attention.
Because of these dangers, always store coolant in a
o Inhaled asbestos fibers have been found to safe place, away from the reach of children.
cause respiratory disease and cancer. Nitrogen Pressure
For shock absorbers with a gas-filled reservoir:
Brake Fluid
CAUTION !BIL , _
" Spilling fluid on painted, plastic or rubber parts o Use only nitrogen to pressurize the shock
will damage them. Place a clean shop towel over absorber. The use of an unstable gas can
these parts whenever the system is serviced. cause a fire or explosion resulting in serious
KEEP OUT OF REACH OF CHILDREN. injury.
.. The shock absorber contains nitrogen lmder
Coolant high pressure. Allowing fire or heat near the
Under some conditions, the ethylene glycol in engine shock absorber could lead to an explosion that
coolant is combustible and its flame is not visible. If the could result in serious injury.
ethylene glycol does ignite, you will not see any flame, .. Failure to release the pressure from a shock
but you can be burned.
absorber before disposing of it may lead to a
possible explosion and serious injury if it is
CAUTION heated or pierced.
" Avoid spilling engine coolant on the exhaust
system or engine parts. They may be hot To prevent the possibility of an explosion, release the
enough to cause the coolant to ignite and bum nitrogen by pressing the valve core. Then remove the
without a visible flame. valve stem from the shock absorber reservoir. Dispose
@ Coolant (ethylene glycol) can cause some skin of the oil in a manner acceptable to the Environmental
irritation and is poisonous if swallowed. KEEP Protection Agency (EPA).
OUT OF REACH OF CHILDREN. Before disposal of the shock absorber, release the nitro-
o Do not remove the radiator cap when the
gen by pressing the valve core. Then remove the valve
engine is hot. The coolant is under pressure stem from the shock absorber.
and could scald you.
@ Keep hands and clothing away from the cool·
ing fan, as it starts automatically.

General Service Rules 4. Install new gaskets, O-rings, cotter pins, lock plates,
1. Use genuine HONDA or HONDA-recommended etc. when reassembling.
parts and lubricants or their equivalents. Parts that 5. When tightening a series of bolts or nuts, begin with
do not meet HONDA's design specifications may the larger-diameter or inner bolts first, and tighten to
damage the motorcycle. the specified torque diagonally, unless a particular
2. Use the special tools designed for this prodUCt. sequence is specified.
3. Use only metric tools when servicing this motorcycle. 6. Clean parts in cleaning solvent upon disassembly.
Metric bolts, nuts, and screws are not interchange- Lubricate any sliding surfaces before reassembly.
able with English fasteners. The use of incorrect 7. After reassembly, check all parts for proper installa-
tools and fasteners may damage the motorcycle. tion and operations.

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 General Information
Model Identification ~,~,~,,~,,_===="W~ ~ =ww

GL1500:
Aspencade
SE
Interstate

The frame serial number is stamped on the right side of The engine serial number is stamped on the rear right
the steering head. side of the engine case.

19J\
-"'-,,
II
'VEHICLE 1D9ITIFICATlOOJ
IIlUM8ERMIIlI
The carburetor identification numbers are stamped on The Vehicle Identification Number (VIN) is located on
the carburetor bodies. the right side of the frame near the steering head on the
Safety Certification Label.

The final drive serial number is found on the final drive The color label is attached as shown. When ordering a
case, near the pinion flange as shown. color-coded part, always specify its designated color.

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 Emission Control Systems

The U.S. Environmental Protection Agency and California Air Resources Board (CARB) require manufacturers to
certify that their motorcycles comply with applicable exhaust emissions standards during their useful life, when
operated and maintained according to the instructions provided, and that motorcycles built after January 1,1983
comply with applicable noise emission standards for one year or 6,000 km (3,730 miles) after the time of sale to the
ultimate purchaser, when operated and maintained according to the instructions provided. Compliance with the
terms of the Distributor's Warranties for Honda Motorcycle Emission Control Systems is necessary in order to keep
the emissions system warranty in effect.

Source of Emissions
The combustion process produces carbon monoxide and hydrocarbons. Control of hydrocarbons is very important
because, under certain conditions, they react to form photochemical smog when subjected to sunlight. Carbon
monoxide does not react in the same way, but it is toxic.
Honda Motor Co., Ltd. utilizes lean carburetor settings, as well as other systems, to reduce carbon monoxide and
hydrocarbons.

Crankcase Emission Control System

The GL1500 engine is equipped with a crankcase emission control system which routes crankcase emissions
through the air cleaner and into the combustion chamber. Condensed crankcase vapors are accumulated in a
crankcase breather storage tank which must be emptied periodically. See the Maintenance Schedule in Section 3.

CRANKCASE ~
BREATHER _____
TUBE

CRANKCASE
BREATHER
TUBE PLUG

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 General Information
Exhaust Emission Control Systems (Pulse Secondary Air Injection [PAIR] System)

The exhaust emission control system consists of a pulse secondary air injection system which introduces filtered air
into the exhaust gases in the exhaust port. Fresh air is drawn into the exhaust port whenever there is a negative
pressure pulse in the exhaust system. This charge of fresh air promotes burning of the unburned exhaust gases and
changes a considerable amount of hydrocarbons and carbon monoxide into carbon dioxide and water.
The PAIR check valve prevents reverse air flow through the system. The engine control module reacts to high
intake manifold vacuum and signals the PAIR solenoid valve. The manifold vacuum is applied to the PAIR control
valve and the PAIR will cut off the supply of fresh air during engine deceleration, thereby preventing afterburn in the
exhaust system.
No adjustments to the pulse secondary air injection system should be made, although periodic inspection of the
components is recommended.

PAIR
SOLENOID VALVE

\ PAIR
CONTROL VALVE

PAIR
CHECK VALVES

EXHAUST
PORT

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 Evaporative Emission Control System (California. model only)
This model complies with California Air Resources Board requirements for evaporative emission regulations. Fuel
vapor from the fuel tank and carburetors is routed into an evaporative emission (EVAP) canister and an EVAP
storage element in the air cleaner where it is absorbed and stored while the engine is stopped. When the engine is
running and the EVAP purge control valve is open, fuel vapor in the EVAP canister and EVAP storage element in the
air cleaner is drawn into the engine through the carburetor.

CARBURETOR
FLOAT CHAMBER

FRESH AIR
FUEL VAPOR

MANIFOLD
VACUUM

~
EVAP
CARBURETOR
"'--~~+""'i=---~ AIR VENT
CONTROL VALVE

FUEL
FILL
CAP

EVAP
PURGE
CONTROL
VALVE

Noise Emission Control System

TAMPERING WITH THE NOISE CONTROL SYSTEM IS PROHIBITED: Federal law prohibits the following acts or
the causing thereof: (1) The removal or rendering inoperative by any person, other than for purposes of mainte-
nance, repair or replacement, of any device or element of design incorporated into any new vehicle for the purpose
of noise control prior to its sale or delivery to the ultimate purchaser or while it is in use; (2) the use of the vehicle
after such device or element of design has been removed or rendered inoperative by any person.
AMONG THOSE ACTS PRESUMED TO CONSTITUTE TAMPERING ARE THE ACTS LISTED BELOW:
1. Removal of, or puncturing the muffler, baffles, header pipes or any other component which conducts exhaust
gases.
2. Removal of, or puncturing of any part of the intake system.
3. Lack of proper maintenance
4. Replacing any moving parts of the vehicle, or parts of the exhaust or intake system, with parts other than those
specified by the manufacturer.

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 General Information
Emission Control Information labels (U.S.A. only)

An Emission Control Information Label is located on the

right side of the frame as shown. It gives basic tune-up
specifications.

EMISSION
CONTROL INFOR·
MATHON LABEL

Vacuum Hose Routing Diagram label

(Califomi«:n model only)
The Vacuum Hose Routing Diagram Label is on the fuel
tank. The seat must be removed to view it. Route the
vacuum hoses as shown on this label.

REED VALVE
~ CAllE
4 ~. fUEL fiLLER CAP

CANISTE~Il'j:J!i-i1n:J-740
1-8
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 Metric Conversions
To convert from metric to English equivalents, use the following conversion factors.
Given Multiply By To Obtain
Torque:
Newton-meters (N-m) 0.723 Foot Pounds (ft-Ib)
Foot Pounds (ft-Ib) 1.383 Newton-meters (N-m)
Length:
Meter (m) 3.281 Feet (ft)
Millimeter (mm) 0.03937 Inches (in)
Feet (ft) 0.3048 Meter (m)
Inches (in) 25.40 Millimeter (mm)
Kilometer (km) 0.6214 Mile (mi)
Mile (mi) 1.609 Kilometer (km)
Pressure:
Kilogram/Sq. centimeter 14.22 Pounds/Sq. inch
(kg/cm 2 ) (psi)
Pounds/Sq. inch (psi) 0.0703 Kilograms/Sq. centimeter (kg/cm 2 )
lemperature:
Centigrade (CO) (CO x 1.8) + 32 Fahrenheit (FO)
Fahrenheit (P) (FO - 32) 7 1.8 Centigrade (CO)
Capacity:
Liter (I) 0.2642 Gallon (gal)
Liter (I) 1.0568 Quart (qt)
Quart (qt) 0.9463 Liter (I)
Gallon (gal) 3.785 Liter (I)
Ounce 29.57 Cubic centimeters (cc)
Cubic centimeter 0.339 Ounce (oz)
Volume:
Cubic centimeter (cc) 0.061 Cubic inches (cu in)
Cubic inches (cu in) 16.39 Cubic centimeters (cc)
Weight:
Kilogram (kg) 2.205 Pounds (Ib)
Gram (g) 0.03527 Ounces (oz)
Pounds (Ib) 0.4536 Kilogram (kg)
Ounces (oz) 23.34945 Gram (g)
Speed:
Kilometer/hour (km/h) 0.6214 Miles/hour (mph)
Miles/hour (mph) 1.609 Kilometer/hour (km/h)

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 General Information
Honda
N.P.S. Part Numbers

Honda N.P.S. numbers contain significant information about the parts they represent. The following examples illus-
trate the three basic types of N.P.S. numbers.
Standard Numbers (Common Items)
6x42 Hex Bolt 92120-060420:Z
Function Number 92
Method of Manufacture 1
Length of Thread 20
Normal Diameter 06
Length Under the Head 042
Material 0
Surface Treatment Z
Semi-Standard Numbers (seals, O~rings, bearings, etc.)
Front Wheel Dust Seal 91251-300-003
Function 91
Type 2
Detail Number 51
Product Number (where first used) 300
Classification 00
Manufacturer 3
Special Numbers (Non-interchangeable parts)
left Side Cover 83100-311-305ZA
Function 83
Component 700
Product 371
Classification 305
Color Code ZA

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 Tools

Special

DESCRIPTION TOOL NUMBER REF. SECTiON(S)

.~~~~-+---
Oil filter wrench 07HAA-PJ70100 3
Pilot screw wrench LMA-MT8010A or 07MMA-MT301 OA 4
Hydraulic tappet bleeder 07973-MJOOOOO 7
Valve guide reamer, 5.5 mm 07984-200000C or 07984-2000000 7
Shim selection gauge 07974-MG90000 7
Piston base head 07JGF-001 01 OA 8
Piston base 07973-6570500 8
Piston pin driver insert 07974-6570400 8
Adj. piston pin driver head 07973-6570210 8
Adj. piston pin driver shaft 07973-6570300 8
Pilot collar 07KMF-MT20200 8
Lock nut wrench, 46 mm 07JMA-MN50100 8
Snap ring pliers 07914-3230001 9, 14
Clutch center holder 07HGB-001000A 9
Oil seal driver attachment 09765-MA10200 9
Clutch outer holder 07JMB-MN501 00 8,9, 10, 18
Lock nut wrench, 46 mm 07JMA-MN501 00 9
Mainshaft holder 07JMB-MN50200 10
Lock nut wrench, 30 x 64 mm 07916-MB00001 17
Bearing remover 09736-3710300 17
Remover handle 07936-3710100 17
Remover weight 07936-3710200 17
Attachment, 28 x 30 mm 07946-1870100 17
Bearing driver attachment 07GAO-SD40101 17
Piston ring compressor 07JMG-MN50000A 10
e piston base A 01 JMG-MN5012A 10
e piston base B 07JMG-MN50111 (1 pc.) 10
Steering stem socket 07916-3710100 15
Steering stem driver 07946-MBOOOOO 15
Ball rave remover 07953-4250002 15
Bearing race remover 07946-3710500 12
Fork seal driver 07947-KA501 00 12
Fork seal driver attachment 07947-KF00100 12
Compressor attachment 07959-MB 10000 12
Oil seal driver 07965-KE80100 12
Oil seal driver attachment 07965-MA60100 12
Lock nut wrench KS-HBA-08-469 12
Pivot bearing outer race remover 07936-4150000 12
Fork bolt assembly tool 07KMF-MT20300 12
Pinion joint holder attachment 07924-9690101 (Modified) or 07924-9690102 11
Pinion joint holder 07924-ME40000 11
Retainer wrench 07910-4630100 11
Oil seal driver attachment 07965-MB00100 11
Shaft puller 07931-ME4000A 11
Attachment (ring gear bearing) 07947-6340100 11
Inner base 07965-3710300 11
~'-~_._-----_--JL..-._--- ._ _........l --J

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 General Information
Tools (cont'd)

Common

DESCRIPTION TOOL NUMBER

. _ - - - - - - - + REF. SECTiON(S)
Oil pressure gauge 0"1506-3000000 - or equivalent 3
Oil pressure gauge attachment 07510-4220100 - commercially available 3
Carburetor vacuum gauge set 07LMJ-001 OOOA or M937B-021-XXXXX 3
Vacuum probe 2" 07LMJ-001 01 OA or M983X-350-XXXXX 3
E.S.1. #320 Tachometer E.S.1. No. 320 4
Float level gauge 07401-0010000 4
Vacuum pump ST-AH-260-MC"1 4,12,16
Pressure pump ST-AH-255-MC"1 4, 12
Valve spring compressor 07757-0010000 7
Valve guide driver, 5.5 mm 07742-0010100 7
Universal holder 07725-0030000 "1,17,18
Driver 07749-001 0000 9, 10, 11,12,15,17, 18
Attachment, 32 x 35 mm 07746-0010100 9,10,17
Pilot, 28 mm 07746-0041100 10
Inner driver B 07746-0020100 10,17
Attachment, 17 mm 1.0. 07749-0020300 17
Attachment, 42 x 47 mm 07746-0010300 12, 15, 17
Pilot, 22 mm 07746-0041000 10, 18
Attachment, 62 x 68 mm 07746-0010500 11,1"1
Pilot, 30 mm 07746-0040700 17
Pilot, 17 mm 07746-0040400 17
Pilot, 12 mm 07746-0040200 17
Piston ring compressor Commercially available 8
Bearing remover Commercially available 15
Pilot, 20 mm 07746-0040500 15,17,18
Attachment, 52 x 55 mm 07746-001 0400 11, 12
Shock absorber compressor 07959-3290001 or 07GME-001 0000 12
Seal remover pump 07971-M01000B 12
Attachment, 3"1 x 40 mm 07746-0010200 12, 18
Universal bearing puller 07631-0010000 (or equivalent commercially 11
available)
Driver, 40 mm 1.0. 07746-0030100 11, 17
Attachment, 25 mm 1.0. 07746-0030200 11
Attachment, 30 mm 1.0. 07746-0030300 17
Adjustable bearing puller 07736-A01000A 11
Digital multimeter 07411-0020000 or KS-AHM-32-003
Christie battery charger MC1012/2 17
Battery tester 07GMJ-0010000 17
Attachment, 35 mm 1.0. 07746-0030400 18
Torx bit, T30 Commercially available 18
Flywheel holder 07725-0040000 18
Attachment, 20 mm 1.0. 07746-0020400 18
Attachment, 24 x 26 mm 00746-0010700 18

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 Specifications
General """""""""" .. " ... " 2..2
Standards/Service
Limits ." ... ""."." .. "". 2..4
Torque Values ."......... 2..8

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 Specifications
General

Item
.... _ .. __ _ .. _ - - . _.. _ .. __ _ ....•..- __ _.__....••._
Standard
_----------------/
Dimensions Overall length 2,615 mm (103.0 in)
Overall width 955 mm (37.6 in)
Overall height 1,495 mm (58.9 in)
Wheelbase 1,690 mm (66.5 in)
Seat height 740 mm (29.1 in)
Ground clearance 115 mm (4.5 in)
Dry weight A: 364 kg (802 Ibs), California rnodel: 365 kg (805 Ibs)
SE: 370 kg (816 Ibs), California model: 371 kg (818 Ibs)
I: 349 kg (769 Ibs), California model: 350 kg (771 Ibs)
Curb Weight A: 399 kg (879 Ibs), California model: 400 kg (882 Ibs)
SE: 405 kg (893 Ibs), California model: 406 kg (895 Ibs)

Frame
-
..•. _ _
.. _ - - . _ . - _ _ .. - __ .. - _ _
I: 385 kg (848
.....•. .. _
Ibs),
- _ _
California _ _
._...• .....•model:
- 386 kg (851 _-_
Ibs) ..• _ _ ..-
Frame Type Double cradle
Front Suspension Travel Telescopic, 140 mm (5.5 in)
Rear Suspension Travel Swing arm, 105 mm (4.1 in)
Air pressure 0-4.0 kg/cm 2 (0·57 psi)
Front tire Size 130/70-18 63H
Air pressure 2.25 kg/cm 2 (33 psi)
Rear tire Size 160/80-1675H
Air pressure Up to 90 kg (200 Ibs) load: 2.50 kglcm 2 (36 psi)
Up to maximurn weight limit: 2.80 kg/cm 2 (41 psi)
Front brake Double disc brake
Rear brake Disc brake
Fuel capacity 24.0 lit. (6.3 US gal, 5.3 Imp gal)
Fuel reserve capacity 5.3 lit (1.4 US gal, 1.2 Imp gal)
Caster angle 30°
Trail length 111 mm (4.4 in)
Front fork oil capacity Left: A & SE: 372 cc (12.6 US oz, 13.1 Imp oz)
I: 361 cc (12.2 US OZ, 12.7 Imp oz)

Engine
.. _
_ _ _ - _ _ _-
_ .....•Right: _ _ __
.. - _ _ _ _ _ _
377 cc (12.7 US OZ, 13.2 Imp oz)
..- _ _ _ . _ .•.. _ .. _ __.
Engine type Water cooled, 4-stroke O.H.C.
Cylinder arrangement Flat six
Bore and stroke 71 x 64 mm (2.8 x 2.5 in)
Displacement 1,520 cc (92.7 cu-in)
Compression ratio 9.8:1
Valve train Belt-driven overhead camshaft
Oil capacity At disassembly 4.3 lit. (4.5 US qt, 3.8 Imp qt)
After oil/filter change 3.7 lit. (3.9 US qt, 3.3 Imp qt)
Lubrication system Forced and wet sump
Cooling system capacity 4.1 lit. (4.3 US qt, 3.6 Imp qt)
Cylinder compression 15.0 kg/cm 2 (213 psi)
Engine weight A & SE: 126 kg (278Ibs)
I: 124 kg (273Ibs)
Camshaft Intake valve Opens 5° ATDC (At 1 mm lift)
Closes 30° ABDC (At 1 mm lift)
Camshaft Exhaust valve Opens 40° BBDC (At 1 mm lift)
Closes 5° BTDC (At 1 mm lift)
Valve clearance Intake/Exhaust Hydraulic valve adjuster system
Idle speed 800±80 rpm
._-~------

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 r---"~-"'-"'---'-----------''''''-''''--r------------'-'''''---~----- .'_
Item
1 - - - - - - - .._-_._------------_ ..
Carburetion Carburetor type
.. _ ....
Standard
.. ... _ ....._....• - _- __ __
Unit: mm (in)
... _-_ .. _ .. _ - - - - - - - - _ . - - - - _ ...-

CV down-draft - (2)
Throttle bore 36 mm (1.42 in)
Carburetor identification No. A & SE: VO GWE; California model: VO GYO; Canada model: VO G9C
I: VO GWF; California model: VO GYE; Canada model: VO G9C
Pilot screw opening See page 4-39
Float level 7.5 mm (0.3 in)
Main jet pri: #80 2nd: #148
Slow jet #65
Throttle grip free play 5-8 mm (3/16-5/16 in)
Fuel pump flow capacity 640 cc (21.6 oz)/minute
Carburetor vacuum difference Within...- 40..-mm
r - - - - - - j · - · · · - · - · - · - · · - · - -..- · · · - - · - - · - - · · · · - ·
- ....-
(1.6 in)Hg of each other
. -....._ _.. _
Drive Train Clutch type Wet, multi-plate
Transmission 5-speed, constant mesh
Primary reduction ratio 1.592 (78/49)
Secondary reduction ratio 0.971 (34/35)
1st 2.666(40/15)
2nd 1.722(31/18)
Gear ratio 3rd 1.272 (28/22)
4th 0.964 (27/28)
00 0.758 (22/29)
Final reduction ratio 2.833 (34/12)
Gearshift pattern Left foot operated return system 1-N-2-3-4-00
Final drive gear oil capacity 140 cc (4.7 US oz, 4.9 Imp oz) (After draining)
170 cc (5.7 US oz, 6.0 Imp oz) (After disassembly)

r - - - - - t - - - - - - - - - · - - - - - - - - - - - t - - - -..- . - -.. .- - - - - - - - - - - - - - - -1
Electrical Ignition Battery Ignition (Full transistor)
Ignition timing "F" mark TOC @ 800 ± 80 rpm
Starting system Starting motor
Alternator A.C. generator, S50 W/S,OOO rpm
Alternator driven gear damper spring
free length 20.8 mm (0.82 in)
Battery capacity 12V-20AH
Spark plug - Standard OPR7EA-9 (NGK)
X22EPR-U9 (Nippondenso)
- For cold climate (Below SO°C, 41°F) OPR6EA-9 (NGK)
X20EPR-U9 (Nippondenso)
- For extended high speed riding OPR8EA-9 (NGK)
X24EPR-U9 (Nippondenso)
Spark plug gap 0.8.-0.9 mm (0.031-0.035)
Firing order 1-4-5-2-3-6
Fuses Fusebox A & SE: 5A x 4, 10A x 4, 15A x 5; I: 5A x 3, 10A x 3, 15A x 5
Main fuse 30A,55A
Reverse fuse A & SE: 5A x 2, 65A
t-----..- - - - - - 1 - - - - - - - - - - - - - - - - - - - _.._ ..- .....- ..- . . --..- ....- - - . - . .._ . __.._ ..._
Lights Headlight 12V 45/45W x 2
Position light 12V 2cp (3.4W) x 2
Turn signal/position light 12V 32cp (23W)/3cp (8W) x 2
Indicator light A & SE: 12V 3.4W x 5; 12V 1.7W x 4; I: 12V 3.4 x 3, 12V 1.7W x 2
Turn signal indicator 12V 3W x 2
Meter illumination 12V 3.4W x 4
LCD unit illumination 12V 3W x 2
License light 12V 3cp (5W)
Accessory light 12V 3W x 2
Brake and taillight 12V 32/2cp (27/7W) x 4
Rear turn signal 12V 32cp (23W) x 2
~,,_._""" ~,,0
_r_
n_e_ri_ng;;....;lig'-h_t..;.(S~E..;.) "'_ _._ _-L1:..:2:.;V....:2:.:S:..::W..:....:.,;x.;;;2:..-- .....J

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 Specifications
Standards/Service limits - -

~ cym
r d ar Haad
~---
Item
- - - - - - - _ . _... .. _ ....._......_ .....-
_ ...._Standard
..•. . _..
Unit:
~
mm (in)
.. _. __ .... _
.. __. _.. _ ... __ .. ~".-
Service limit___
f----------------
Cylinder Cylinder head warpage 0_10 (0.004)
Head Valve stem 0.0. IN 5.475-5.490 (0.2156-0.2161) 5.45 (0.215)
EX 5.455-5.470 (0.2148-0.2154) 5.44 (0.214)
Valve guide 1.0. IN, EX 5.500-5.512 (0.2165-0.2170) 5.55 (0.219)
Valve stem-to-guide clearance IN 0.010-0.037 (0.0004-0.0015) 0.08 (0.003)
EX 0.030-0.057 (0.0012-0.0022) 0.10(0.004)
Valve seat width 1.2 (0.05)
Valve spring tree length 44.6 (1.76) 43.3 (1.70)
Valve spring preload/length 15.6-18.2/37.5 kglmm
(34.49-40.12/1.48 Ibs/in)
Rocker arm 1.0. 25.000-25.021 (0.9843-0.9851) 25.05 (0.986)
Rocker arm shaft 0.0. 11.966-11.984 (0.4711-0.4718) 11.95 (0.470)
Rocker arm lobe 1.0. 11.996-12.031 (0.4723-0.4734) 12.07 (0.475)
0.0. 20.945-20.980 (0.8246-0.8260) 20.93 (0.824)
Hydraulic valve adjuster compression stroke 0-0.30 (0-0.012) 0.30 (0.012)
with kerosene
Camshaft Cam lobe height
-- . _ - - - -... _ . " . _..... _ . _... _ _ .. ...,._....- ---_...... _ ... _---
max
- -.. __ ._---------
36.110-36.190 (1.4217-1.42480) 35.9 (1.41)
Runout (at inner journals) 0.10(0.004)
Journal 0.0. Both inner 26.934-26.955 (1.0604-1.0612) 26.91 (1.059)
Both ends 26.949-26.970 (1.0610-1.0618) 26.91 (1.059)
Holder, Journal 1.0. 27.000-27.021 (1.0630-1.0638) 27.05 (1.065)
Journal oil clearance Both inner 0.045-0.087 (0.0018-0.0034) 0.14 (0.006)
Both ends 0.030-0.072 (0.0012-0.0028) 0.14 (0.006)

Cylinder Cylinder compression pressure 13.0-17.0 kg/cm 2 (185-242 psi) 10 kg/cm 2

(142 psi)
1.0.
Cylinder 71.010-71.025 (2.7957-2.7963) 71.1 (2.80)
Out-ot-round 0.15 (0.006)
Taper 0.05 (0.002)
Top warpage
~-----------t-----------------------..----------- I-------------........-----..---.. - - - - - - - - - - - - - - - - - - - -....- - - t - -....-
0.05 (0.002)
_
Piston Piston 0.0. (at skirt) 70.960-70.990 (2.7937-2.7949) 70.85 (2.789)
Piston pin bore 18.010-18.016 (0.7091-0.'7093) 18.03 (0.710)
Piston-to-cylinder clearance 0.015-0.065 (0.0006-0.0026) 0.10 (0.004)
Piston ring End gap Top and second 0.15-0.30 (0.006-0.012) 0.5 (0.02)
Oil ring side rail 0.20-0'-70 (0.008-0.028) 0.9 (0.04)
Ring-to-ring Top 0.025-0.055 (0.0010-0.0022) 0.10(0.004)
land clearance Second 0.015-0.045 (0.0006-0.0018) 0.10(0.004)
Piston pin 0.0. (at sliding surfaces) 17.994-18.000 (0.7084-0.7087) 18.99 (0.748)
Pin-to-piston clearance 0.010-0.022 (0.0004-0.0009) 0.05 (0.002)
Pin-to-rod interference
f------ -----
0.015-0.039 (0.0006-0.0015)
. ... .. .. ... .. _
Crankshaft Main journal bearing oil clearance 0.020-0.038 (0.0008-0.0015) 0.06 (0.002)
Crankpin bearing oil clearance 0.027-0.045 (0.0011-0.0018) 0.06 (0.002)
Crankshaft runout (at center journal) 0.03 (0.001)
Connecting rod side clearance 0.15-0.30 (0.006-0.012) 0.40 (0.016)
Crankpin and main journal Taper 0.003 (0.0001)
Out-ot-round 0.005 (0.0002)

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 ~
CI uc
t h ,-~'" ~"""~

Item ......_...-
Standard _._.....
Unit: mm (in) Service Limit
~ ....

Clutch master Cylinder 1.0. 15.870-15.913 (0.6248-0.6265) 15.93 (0.627)

cylinder Piston 0.0. 15.827-15.854 (0.6231-0.6242) 15.82 (0.623)
... _-_ ....- ._---
Clutch Plate warpage 0.30 (0.012)
Disc thickness 3.72-3.88 (0.146-0.153) 3.5 (0.14)
Clutch spring free height 5.38 (0.212) 5.1 (0.20)
Clutch fluid DOT 4

Oil Pumps
Main oil pump Tip cle arance 0.15 (0.006) max. 0.35 (0.014)
Pump body clearance 0.15-0.23 (0.006-0.009) 0.43 (0.017)
Pump side clearance 0.02-0.07 (0.001-0.003) 0.12 (0.005)
._---
Scavenging Tip cle arance 0.15 (0.006) max. 0.35 (0.014)
pump Pump body clearance 0.15-0.23 (0.006-0.009) 0.43 (0.017)
Pump side clearance 0.02-0.07 (0.001-0.003) ._._. 0.12 (0.005)
....._.....

Pressure Relief pressure 4.7-5.7 kg/cm 2 , 67-81 psi

relief valve Relief valve spring free length 90.8 (3.57) 84.0 (3.31)
_ ...... _.._.._..
Oil pressure Cold (At 35°C/95°F) Idle speed 1.3 kg/cm 2 , (18 psi)
(at oil pressure switch) 5,000 rpm 5.0 kg/cm 2 , (71 psi)
Hot (At 80°C/176°F) Idle speed 0.8 kg/cm 2 , (11 psi)
(at oil pressure switch) 5,000 rpm 5.0 kg/cm 2 , (71 psi)
Oil pre ssure switch continuity pressure 0.1-0.2 kglcm 2 , (1-3 psi)
.
~ Transmlsslon --
Transmission Gear I.D. C2, C3, M4, M5 34.000-34.016 (1 .3386-1.3392) 34.04 (1.340)
Gear bushing 0.0. C2, C3, M4, M5 33.940-33.965 (1.3362-1.3372) 33.92 (1.335)
Gear-to-bushing
_..__.
clearance 0.035-0.076 (0.0014-0.0030) 0.10 (0.004)
Gearshift Shift fork shaft 0.0. 13.966-13.984 (0.5498-0.5506) 13.90 (0.547)
Shift fork 1.0. 14.000-14.021 (0.5512-0.5520) 14.04 (0.553)
Claw thickness 5.93-6.00 (0.233-0.236) 5.6 (0.22)

Cooling
Cooling Radiator cap relief pressure 0.75-1.05 kg/cm 2 (11-15 psi)
Thermostat Begins to open temperature 80 c -84°C (176°-182°F)
Fully opened temperature 93°-9rC (199°-206°F)
Valve lift (heated to 95°C/5 minutes 8.0 (0.31) min.
Carburetor coolant thermal valve Starts to close 78°-82°C (172°-180°F)
California model 58°-62°C (136°-144°F)
Thermostatic fan motor switch Starts to close 98°-102°C (208°-216°F)
Coolant temperature sensor 60°C (140° F) 104 ohms
resistance 85°C (185°F) 44 ohms
110°C (230°F) 20 ohms
120°C (248°F) 16 ohms
Radiator After disassembly 4.1 lit (4.3 US qt, 3.6 Imp qt)
coolant After draining (including reserve tank). 3.8 lit (4.0 US qt, 3.3 Imp qt)
capacity Reserve tank 0.55 lit (0.6 US qt, 0.5 Imp qt)
Boiling point (with 50-50 mixture) Unpressurized: 107,rC (226°F)
Cap on pressurized: 125.6°C (258°F)
Freezing point (Hydrometer test) 55% Distilled water + 45% ethylene glycol:
-32°C (-26° F)
50% Distilled water + 50% ethylene glycol:
-3rC (-35°F)
45% Distilled water + 55% ethylene glycol:
-44.5°C (-48° F)

2-5
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 Specifications
Standards/Service limits (ccmt'd)

~ F1118 ID"
rwe ,- ~,,~

Item Standard Unit: mm (in) Service Limit

1----- -- ----_._---_.. -
Final Drive Final gear oil Recommended oil Hypoid gear oil, SAE #80
Capacity: After disassembly 170 cc (5.7 US oz, 6.0 Imp oz)
After draining 140 cc (4.7 US oz, 4.9 Imp oz)
Final gear backlash 0.05-0.15 (0.002-0.006) 0.3 (0.01)
Difference at 3 points 0.10(0.004)
Ring gear-to-stop pin clearance 0.30-0.60 (0.012-0.024)
- - - _.._-----_.._ - - - _ ....
Output Shaft Damper spring free length 60.82 (2.394) 57.0 (2.24)
Shaft 0.0. 22.008-22.021 (0.8665-0.8670) 21.99 (0.866)
Collar 1.0. 22.026-22.041 (0.8672-0.8678) 22.05 (0.868)
0.0. 25.959-25.980 (1.0220-1.0228) 25.95 (1.022)
Drive gear 1.0. 26.000-26.016 (1.0236-1.0242) 26.03 (1.025)
-,~~~-

r--- S U s pension ="-~ ==,~

"

Fork Forl< spring free length 390.6 (15.38) 382.8 (15.07)

Forl< oil capacity Left A & SE: 372 cc (12.6 US OZ, 13.1 Imp oz)
I: 361 cc (12.2 US oz, 12.7 Imp oz)
Right 377 cc (12.7 US oz, 13.2 Imp oz)
Fork oil level (from top of tube) 194 (7.6)
Fork oil Pro Honda Suspension Fluid SS-8
_. Fork tube runout 0.2 (0.01)
Shocks Right shock absorber air pressure 0-4.0 kg/cm 2 (0-57 psi)
Right shock absorber oil capacity 140 cc (4.7 US oz, 4.9 Imp oz)
Right shock absorber oil Pro Honda Suspension Fluid SS-7

Front Brakes Front brake master cylinder Cylinder 1.0. 12.700-12.743 (0.5000-0.5017) 12.755 (0.5022)
Piston 0.0. 12.657-12.684 (0.4983-0.4994) 12.645 (0.4978)
Front brake caliper Left Cylinder 1.0. 25.400-25.450 (1.0000-1.0020) 25.460 (1.0024)
Piston 0.0 25.335-25.368 (0.9974-0.9987) 25.310 (0.9965)
Right Cylinder 1.0. 30.230-30.280 (1.1902-1.1921) 30.290 (1.1925)
Piston 0.0. 30.165-30.198 (1.1876-1.1889) 30.140 (1.1866)
Front brake disc Thickness 5.8-6.2 (0.23-0.24) 5.0 (0.20)
Runout 0.3 (0.01)
Front brake pad thickness 5.5 (0.22) 1.0 (0.04)
~-----~------'----------------It-----'-'------_ ...-._..._ _...- ...- - - - - + - _.__..- _..-
Rear Brake Rear brake master cylinder Cylinder 1.0. 15.870-15.913 (0.6248-0.6265) 15.925 (0.6270)
Piston 0.0. 15.827-15.854 (0.6231-0.6242) 15.815 (0.6226)
Brake rod clevis 100 (3.9)
installed length
Rear brake caliper Cylinder 1.0. 32.030-32.080 (1.2610-1.2630) 32.090 (1.2634)
Piston 0.0. 31.948-31.998 (1.2578-1.2598) 31.940 (1.2575)
Rear brake disc Thickness 7.3-7.7 (0.29-0.30) 6.0 (0.24)
Runout 0.3 (0.01)
1.0 (0.04)

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 - Wh ees
lIT"Ires -
Item Standard Unit: mm_.-(in) Service Limit
Wheel axle runout 0.2 (0.01)
Wheel rim runout Axial 2.0 (0.08)
Radial 2.0 (0.08)
Tire tread depth Front 1.5 (0.06)
Rear 2.0 (0.08)

Charging Battery capacity 12V-20AH

Battery specific gravity Full charged 1.270-1.290
(At 20 c C/68° F) Needs charging Below 1.260
Battery charging current 2.0 Amperes max.
Alternator Capacity 0.55 kW/5,000 rpm
Stator coil resistance 0.1-0.3 ohms (20°C, 68°F)
Rotor coil resistance 2.9-4.0 ohms (20°C, 68°F)
Rotor coil slip ring 0.0. 27.0 (1.06) 26.0 (1.02)
Charging start 800-1,000 rpm
Regulator/Rectifier Type Transistorized non-adjustable reg.lrecti.
(into alternator) Regulated Voltage 900 rpm 0-2A, 13.5··15.5 V
C
(At20"C/68 F) 1,850 rpm 1.5 A min, 13.5-15.5 V
r--'~~~'-I--~~~~~~~~~~~~~~~~~'--

Ignition Firing order 1-4-5-2-3-6-1

Ignition timing F mark 00 TOC at 800 ± 80 rpm
Vacuum Advance start 650-750 mmHg (25.6-29.5 inHg)
advance Advance cease 380-480 mmHg (15.0-18.9 inHg)
Ignition coil Primary coil 2.6-3.2 ohms
resistance Secondary coil With spark plug 20.2-26.8 k ohms
(At 20°C/ wire
68°F) Without spark 11.7-14.3 k ohms
plug wire
Ignition pulse generator coil resistance (At 20°C/68°F) 400-500 ohms
Engine coolant temperature sensor/ 2.0-3.0 k ohms
Intake air temperature sensor 200-400 ohms
--~~~~~~~~~._-+----_ . _- .--------+-----------f
Starter/ Starter motor brush length 12.5 (0.49) 6.0 (0.24)
Reverse Reverse System Starter relay regulator/ 0.7-1.0A
regulated current
Resister Between relay and unit 0.06-0.09 ohms
terminals
Between relay terminal 0.1-0.2 ohms
and ground

I--~~~~--t~~-~~~~ ....-- ....- - _ . -..- ..._... ~~~~~~- -~~~--~~~_+~~~~~~__I

Electrical Oil pressure switch continuity pressure 0.1-0.2 kg/cm 2 (1-3 psi)
Fuel gauge level sensor Empty 90-100 ohms
resistance (At 20°C/68°F) Reserve 66-81 ohms
Full 4-10 ohms

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 Specifications
Torque Values ="",,,

Engine
._-~,~,,-
"'=.'.,........= , =..~..,."""',"=""=.,"--~'" .... __.- "'--
",= " ..............

Thread
... __.. __ ..-
Torque
Item Qty
dia (mm) kg-m Remarks
N-m ft-Ib
Spark plug
--- ----_.
6 12 15 1.6 11
Carburetor insulator band screw 4 5 5 0.5 3.6
Intake manifold vacuum tube joint 4 5 2.8 0.28 2
Water hose clamp screw 2 4 2.0 0.2 1.4
Coolant temperature sensor 1 PT 1:8 12 1.2 9 NOTE 1
Thermostatic fan motor switch 1 16 18 1.8 13
Engine coolant temperature sensor 1 12 28 2.8 20
Reverse switch 1 10 12 1.2 9
Reverse shifter shaft bolt 1 6 14 1.4 10 NOTE 2
lubrication
Oil pressure switch PT 1/8 12 1.2 9 NOTE 1
Engine oil drain bolt 14 35 3.5 25
Engine oil filter cartridge 20 10 1.0 7
Engine oil filter boss 20 17 7.7 12 NOTE 2
Cylinder Head
Cylinder head bolt (9 mm bolt) 16 9 45 4.5 33 NOTE 3
Timing belt driven pulley bolt 2 8 27 2.7 20
Camshaft holder bolt 16 8 20 2.0 14
Hydraulic valve adjuster stopper plug 12 14 30 3.0 22
Cylinder head cover bolt 12 6 12 1.2 9
Timing belt tensioner bolt 4 8 26 2.6 19 NOTE 2
Cylinder head sealing bolt 6 18 45 4.5 33 NOTE 2
Clutch
Clutch hose/pipe oil bolt 3 10 35 3.5 25
Clutch slave cylinder bleed valve 1 8 9 0.9 7
Clutch bleed pipe bolt 1 6 12 1.2 9 NOTE 2
Clutch center lock nut 1 22 130 13.0 94
Clutch outer lock nut 1 40 190 19.0 137 NOTE 2/5
Alternator
Front cover attaching screw 3 4 2 0.2 1.4 NOTE 2
Couple A mounting nut 1 14 58 5.8 42 NOTE 2
Couple B mounting nut 1 14 58 5.8 42
Rear Engine Case
Starter one-way clutch socket bolt 6 6 16 1.6 12 NOTE 2
Starter clutch mounting bolt 1 12 75 7.5 54
Alternator drive gear bolt 6 8 27 2.7 20 NOTE 6
Final drive gear lock nut 1 22 190 19.0 137 NOTE 2/4/5
Output shaft lock nut 1 30 190 19.0 137 NOTE 5
Oil pump driven sprocket bolt 1 6 18 1.8 13 NOTE 2
Gearshift
Shift arm lock bolt 8 25 2.5 18
Shift drum center bolt 8 28 2.8 20
Shift drum lock arm bolt 6 12 1.2 9 NOTE 2
Shift arm return spring pin 8 25 2.5 18
Engine Case/CrankshaftlTransmission
Engine case bolt (10 mm) 8 10 35 3.5 25 NOTE 6
(8mm) 4 8 26 2.6 19
(6mm) 10 6 12 1.2 9
Engine case sealing bolt (20 mm) 4 20 45 4.5 33 NOTE 2
(18 mm) 2 18 45 4.5 33 NOTE 2
Mainshaft lock nut 1 22 190 19.0 137 NOTE 4/5
Crankshaft main bearing cap bolt 8 10 70 7.0 51 NOTE 6
Connecting rod cap nut 8 8 32 3.2 23 NOTE 6
Timing belt drive pulley bolt 1 12 75 7.5 54
.. _-_.
NOTES:
1. Apply sealant to the threads. 5. Stake (2 places).
2. Apply locking agent to the threads. 6. Apply oil to the threads and flange surfaces.
3. Apply molybdenum disulfide oil to the threads 7. Torque wrench scale reading using a special tool.
and flange surfaces. 8. Apply grease to the threads and flange surfaces.
4. left-handed threads.
..._ ..
=~,~~"'''=--~ "~"= .. .._ , , , ,
m=",,,,==,,,,,~=,,,,,_

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 Frame
,,~---~ , . ~<""'''U»

""

Item Thread Torque

CIty Remarks
dia (mm) N-m kg-m ft-Ib
--
Engine Mount:
Engine mount nut 7 10 40 4.0 29
Engine bracket bolt 4 8 25 2.5 18
Subframe bolt (10 mm socket bolt) 4 10 40 4.0 29
(10 mm flange bolt) 1 10 40 4.0 29
(8 mm flange bolt) 1 8 25 2.5 18
Exhaust pipe joint nut 12 6 10 1.0 7
Side stand pivot 1 10 22 2.2 16
Center stand pivot 1 8 18 1.8 13
Chamber protector bolt 6 6 10 1.0 7
Brake disc bolt 18 8 40 4.0 29
Handlebar:
Handlebar upper holder bolt 4 8 25 2.5 18 NOTE 8
Front master cylinder holder bolt 2 6 12 1.2 9
Clutch master cylinder holder bolt 2 6 12 1.2 9
Front:
Axle pinch bolt 4 8 22 2.2 16
Axle bolt 1 14 90 9.0 65
Steering stem nut 1 24 100 10.0 72
Steering stem adjustment nut 1 26 19 1.9 14 See page
12-44
Anti-dive case socket bolt (A & SE) 8 6 8 0.8 6 NOTE 2
(I) 4 6 8 0.8 6 NOTE 2
Fork bottom socket bolt 2 8 20 2.0 14 NOTE 2
Fork bolt 2 37 23 2.3 17
Fork leg upper pinch bolt 2 8 22 2.2 16
Fork leg lower pinch bolt 4 10 55 5.5 40
Rear:
Axle pinch bolt 1 8 32 3.2 23
Axle nut 1 18 110 11.0 80
Rear wheel damper holder bolt 5 6 20 2.0 14
Left shock absorber mount bolt (Upper) 1 8 23 2.3 17
(Lower) 1 18 70 7.0 51
Right shock absorber mount bolt (Upper) 1 8 23 2.3 17
(Lower) 1 8 23 2.3 17
Air hose bolt (A & SE) 3 8 6 0.6 4
Air hose special bolt (with seat) (A & SE) 1 10 15 1.5 11
Outlet air hose joint (A & SE) 2 8 6 0.6 4
Air pressure sensor (A & SE) 1 8 10 1.0 7
Air distributor solenoid valve mounting screw (A & SE) 4 5 3 0.3 2
Swing arm right pivot bolt 1 30 100 10.0 72
Swing arm left pivot bolt 1 30 19 1.9 14
Swing arm left lock nut 1 30 100 10.0 72 NOTE 7
Final Drive:
Pinion bearing retainer 1 70 150 15.0 108
Pinion joint nut 1 16 110 11.0 80
Gear case cover bolt (10 mm) 2 10 63 6.3 46 NOTE 2
(8 mm) 6 8 26 2.6 19
Final drive gear case mounting nut 4 10 65 6.5 47
Final drive gear case drain bolt 1 14 20 2.0 14
Dust guard plate bolt 1 6 10 1.0 7
Retainer lock washer bolt 1 6 10 1.0 7
NOTES:
1. Apply sealant to the threads. 5. Stake (2 places).
2. Apply locking agent to the threads. 6. Apply oil to the threads and flange surfaces.
3. Apply molybdenum disulfide oil to the threads 7. Torque wrench scale reading using a special tool.
and flange surfaces. 8. Apply grease to the threads and flange surfaces.
4. Left-handed threads.
===,.

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 Specifications
Torque Values (ccmt'd)

Frame
Thread Torq ue
Item

Hydraulic Brake:
Qty
dia (mm)
"'_.-' .
~.
N-m
...
..·. .u _••
__ _k9-
.........
m ft-Ib
Remarks

Caliper bleed valve 3 a 6 o. 6 4

Front caliper bracket bolt (A & SE) 2 a 23 2. 3 17
Anti-dive piston bolt (A & SE) 2 6 12 1. 2 9
(I) 1 6 12 1. 2 9
Left front caliper bracket bolt (I) 2 a 31 3. 1 22
Right front caliper bracket bolt (I) 1 a 23 2. 3 17
Front pad pin plug 4 10 2.5 O. 25 1.8
Front pad pin 4 10 18 1. 8 13
Brake hose bolt 6 10 35 3. 5 25
Rear caliper retainer bolt 1 6 11 1. 1 8
Rear caliper bolt 1 a 23 2. 3 17
Rear caliper pin bolt 1 12 28 2. 8 20
Metal brake line nut 4 10 17 1. 7 12
Other~:
Brake disc bolt 18 a 40 4. o 29
Miscellaneous:
Side stand pivot bolt 1 10 10 1. o 7
Side stand lock nut 1 10 29 2. 9 21
Side stand switch mounting bolt 1 6 10 1. o 7
Center stand pivot bolt 1 a 18 1.8 13
Exhaust pipe joint nut 12 6 10 1. o 7
Tail spoiler mounting bolt (SE) 4 6 6 o. 6 4.3
Passenger footrest bracket bolt (SE) 4 a 26 2. 6 19
Passenger footrest cover bolt (I) 2 6 10 1.o 7
Flairing inner cover bolt 2 6 10 1.o 7
Air cleaner tube joint screw 2 5 0.3 O. 03 0.2
Starter motor cable nut 2 - 0.5 O. 05 0.4
Antenna lock nut 1 8 10 1.o 7

Torque specifications listed above are for important fasteners. Others should be tightened to standard torque values listed below.

Standard Torque Values

Torque Values Torque Values
Item Item
..- ...- .... __ _._.... _ _ __ -
N-m (kg-m, ft-Ib)
... .. .. .. .... .. _ .... __
N-m (kg-m, ft-Ib)
- - - " _....._ ... .. ..., _ . - . _ .
~
5 mm bolt and nut 5 (0.5, 4) 5 mm screw 4 (0.4, 3)
6 mm bolt and nut 19 (1.0, 7) 6 mm screw and 6 mm 9 (0.9, 7)
a mm bolt and nut 22 (2.2,16) flange bolt with 8mm head 12 (1.2, 9)
10 mm bolt and nut 35 (3.5, 25) 6 mm flange bolt and nut 27 (2.7, 20)
12 mm bolt and nut 55 (5.5, 40) a mm flange bolt and nut 40 (4.0, 29)
_ ........ . _.l..-_.
10 mm flange bolt and nut
~ . b __ _• .. .......

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 Maintenance
Service Information 3..2 Pulse Secondary Air
Lubrication Points 3..3 Injection System 3..24
Troubleshooting 3..7 Evaporative Emission
Maintenance Schedule .. 3..12 Control System 3..24
Engine Oil Level 3..13 Battery 3..25
Engine on and Filter Brake Fluid 3..26
Change 3..13 Brake Pad Wear 3..26
Oil Pressure Check 3..14 Brake System 3..27
Final Drive Oil 3..15 Brake Light Switch 3..28
Fuel Line . 3..16 Headlight Aim 3..28
Throttle Operation 3..16 Clutch System 3..29
Carburetor Choke 3..17 Clutch Fluid 3..29
Air Cleaner 3..18 Reverse Operation 3..30
Crankcase Breather 3..19 Side Stand 3..31
Spark Plugs 3..19 Suspension 3..31
Carburetor Air Pump Element 3..33
Synchronization 3..20 Air Drier 3..34
Carburetor Idle Speed .. 3..21 Cruise Valve Element 3..35
Cylinder Compression .. 3..21 Nuts, Bolts, Fasteners .. 3..35
Radiator Coolant 3..22 WheelsfTires 3..36
Cooling System 3..23 Steering Head Bearings .3..37

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 Maintenance
Service Information ~~~~""""~~~----------""'"

e Support the motorcycle on the center stand on a level surface before starting any work.
e When the engine must be running to do some work, make sure the area is well ventilated. Never run the
engine in a closed area. The exhaust contains poisonous carbon monoxide gas that may cause loss of
consciousness and lead to death.
e Any attempt to mount passenger car tires on a motorcycle rim may cause the tire bead to separate from
the rim with enough explosive force to cause serious injury or death.

@ Always use the center stand when adjusting ail' pressures. Do not use the side stand when adjusting
~,,~air pressur~, as you will get false pressure""readings. ,_~_,_ _,,~ _

@ For engine oil capacity, see page 2-2.

@ For engine oil filter, see page 3-13.
@ For final drive oil capacity, see page 2-6.
@ For coolant capacity, see page 2-5.
o For oil pressure switch inspection, see page 19-23.
o The lubrication system uses two oil pumps; main and scavenging. The main pump picks up oil from the crankcase
and delivers it under pressure to the bearings and other important parts of the engine. It is equipped with a
pressure relief valve
o The scavenging pump draws oil from the clutch housing in the rear engine cover and sends it to the primary drive
and driven gears to lubricate and cool them.
@ To remove the main oil pump and scavenging pump, see Section 8
@ The following abbreviations are used to identify wire colors in the circuit schematics:

BLK black LT GRN light green

BLU blue ORN orange
BRN brown PNK pink
GRN green RED red
GRY gray WHT white
LT BLU light blue YEL yellow

@ The fuel tank does not have a drain bolt. While installed on the motorcycle, the fuel tank may be drained by using
a vacuum pump to drain fuel from the fuel filler mouth or by jumping a power source to the fuel pump to drain fuel
from the fuel tube at the carburetor.

@ This motorcycle is equipped with tubeless tires, valves, and wheel rims. Use only tires marked "TUBELESS" and
tubeless valves on rims marked 'TUBELESS TIRE APPLICABLE." Never mount tires designed for use on auto-
mobiles on a motorcycle rim.

Torque Values
Oil pressure switch 12 N-m (1.2 kg-m, 9 ft-Ib) .- Apply sealant.
Engine oil drain bolt 38 N-m (3.8 kg-m, 27 ft-Ib)
Engine oil filter cartridge 10 N-m (1.0 kg-m, 7 ft-Ib)
Final drive gear case filler cap 12 N-m (1.2 kg-m, 9 ft-Ib)

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 lubrication Points
"""~~"

lubrication Point lubricant Remarks

-, ",

Engine HONDA 4-stroke Oil or 4.3 lit (5.4 US qt, 3.8 Imp qt)
equivalent. API service at engine assembly 3.5 lit
classification: SF or SG (3.7 US qt, 3.1 Imp qt,
SAE 10WAO oil changes 3.7 lit (3.0 US qt,
3.3 Imp qt) at oil filter and oil
change
,--,,-- "
Final drive gear Hypoid gear oil, SAE 80 140 cc (4.7 oz) after draining
170 cc (5.7 oz) at assembly
~''''''--''''- -~, m"~

Fork Pro-Honda Suspension Left: 325 cc (11.0 US oz,

Fluid SS-8 or equivalent 11.4 Imp oz)
GL1500 I: 320 cc (10.8 US oz,
11.2 Imp oz)
Right: 320 cc (10.8 US oz,
11.2 Imp oz)
GL1500 I: 330 cc (11.2 US oz,
11.6 Imp oz)
'''='--'='''''"'' .. -~

Rear shock absorber (ri ght) Pro-Honda Suspension 140 cc (4.7 US OZ, 4.9 Imp oz)
Fluid SS-7 or equivalent
- -" -
Shock absorber air has e joint a-rings Pro-Honda Suspension
Fluid SS-7
~,

" ==- , ,--

Brake fluid (clutch fluid) DOT4
"'''''''' ,.,,,.=-- ".,,-_..- ,,,,,,,""'-----,,"',"" ~--------
Steering head bearings Multipurpose grease
Steering head bearing d ust seal
Brake lever pivot
Clutch lever pivot
Speedometer gearbox
Swing arm pivot bearing s and dust seals
Front and rear wheel be arings
Front and rear wheel be aring dust seal lips
Throttle grip sliding surf ace
Center stand pivot
Side stand pivot
Brake pedal pivot
Windshield adjuster ten sion plate pivot
Reverse drum circumfe rence
Reverse drum pivot
= ..=-"~--~

Drive shaft, universal jo int Honda Moly 60 paste or

--
Drive shaft pinion joint splines and oil seal equivalent
Final driven flange splin es ,

Brake caliper pivot bolts sliding surface Hi-Temperature silicone

Brake caliper side colla rs grease
,-,- ,,~~'""~,- -, ,,,,,,nun

Speedometer cable Light weight oil

Throttle and choke cab les
Reverse cables m,=,,,,,,'"'''''''''' ..
-"""" _-

3-3
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 Maintenance
. Information
Service (cont'd) ~~~----
Service Access Guide

3..4
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 Service Access Guide
Remove the top compartment, trim holder, and/or fairing cover pieces as indicated when service is required for one
of the following. Refer to section 13 for component removal.
._.... __ ..

=-"-
~.
" ............,
~umb~;-~ It;;Requiring Remov.;i ._-_ Left ...
~ ~_
Right
... Service ,,,,,==

l.~·_,,_1=__ ."-T~-=:.~~~~t__ -- - Fuel line

Air cleaner housi ng
2
...~,="-~.,..".,,,==

3
Ignition switch cover
--~''''''=,-"~=="=».",~

Top compartment cover

.." ."...,,,,,=,,,,,-,,,,
_.
...- - - , , , , = ,

,,,,,=,"',,""""""'.=,............."

-
........,,,,.='.,,,-,=.

_.~-.-_
-
-
.. __
1--..._ ...._._._ _...- ...
Radiator coolant
._~'"

Carburetor _
.. ..... idle s peed
".".....='''=,_.~.".~.... =,,---_._~" ..... =
--- f - - - - . - -... -_.~_

---------
4
"="==-=~='=-'~'.~'.
Top inner cover
,.,~--=",.=-==,=,="=", ........",, '"
- * Cooling system (radiator cap and hoses
. -_....... '"

5 Front grille - - Headlight aim

_
'''-'''".=",...~,=-~, "',,-" ''''-''''=''''"""",,"''='''' ,,,,,,,,,,,,-,,, , , , , , , - = , , = - -..

6
._ " , , = " ' =....,...-"
Radiator shroud
= '''='''"-,,,,,---,, " .... - .... ~.,-
f - -.
- Cooling system ( radiator core)
7 Rear side cover * * Clutch system (m etalline)
Battery
Brake fluid (left fr ont/rear)

8 Front side cover

*
,,==,=,>'

*
.I--~
*
..._ _•
Brake system (h oses)
Clutch system (m etaI line)
"' __
.........." .. ..
_--'''~_._"

* Brake light switc h

* Reverse operatio n (cable adjustment)
* * Brake system (h oses)
.- -'-"-'-
9 Fairing inner cover * Carburetor synch ronization
* Reverse operatio n (cable adjustment)
* Clutch system (metal line)
* Cruise valve ele ment
* * Brake system (h oses)
* * Pulse secondary air injection (tubes)
~.-.-.- >--" ..... -----,,,,,
10 Fairing lower cover * * Cooling system (hoses)
* * Pulse secondary air injection system
* * (tubes)
* * Spark plugs
* * Brake system (h oses)
* * Carburetor sync hronization
*
__._m * Cylinder compre ssion
11 Under cover - - Engine oil filter

12 Disc cover
""""..... ,"=~""''=''''''-

*
............'".••===,"""""'",,=

*
Cooling system (hoses)
f--"-_._~--

Brake system (h oses)

--~-_. __._--_ .....;
._=,----,=,,~.,,~"'~~
,==,,,-'- ' - '
_._._....- =~"==~ ...
~mn
--",-~---"'----l
13
14
Fairing front cover
Saddlebag
-",,_.... _- -
-
*
-
m=._._
Cooling system (hoses)
Air pump eleme nt
Brake system (h oses)
* Air drier (desiccant replacement)
"-_._"~ ~. ."-"--,,,,,

15 Seat
-~=,-
- - Air drier (inspect ion window)
16 ,--,,- '----....* Brake system .tb rake pedal height)

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 Maintenance

Lubrication Diagram

~ HVDRAUUC
VALVE
~ ADJUSTER

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 Troubleshooting '=
•.-._-~

Engln~ will not crank Afterlires, ~xplosions In muffler

• Battery or charging system faulty (see Section 17) • Ignition system faulty (see Section 171
• Starter or starter system faulty (see Section 18) • Retarded ignition timing (see Section 17)
• Engine seized • Valve timing faulty
• Switches or accessory faulty • Lean mixture (often due to dirt or water in fuel, or intake air leak)
• Leaky or sticking intake valve or weak or broken intake valve spring
Engln~ cranks but will not start • Faulty hydraulic valve
• Weak or broken exhaust valve spring(s)
• Out of fuel or incorrect fuel • Burnt exhaust valve(s)
• Engine stop switch off • Carburetor malfunction (Section 4)
• Ignition system faulty (see Section 16)
• Fuel filter clogged
• Fuel cap vent clogged Pre-Ignition (mixture ignit~s b~for~ spark plug
fires)
Engln~ cranks but will not start - cold w~ath~r • Hot spot in combustion chamber (carbon particle)
• Battery weak due to low temperature (see Section 17) • Overheated valve (sticking in guide)
• Incorrect choke cable adjustment • Overheated engine
• Ice in fuel lines, carburetors, fuel tank, or fuel filter
• Incorrect engine oil Oil level too low
• Water pump iced (incorrect antifreeze ratio) • Oil level not replenished frequently enough
• External oil leaks
Engine cranks but will not start - ~ngln~ hot • Oil-Up
- Worn piston rings
• Fuel flow stopped by percolation (vapor lock) in lines, carburetor, or
fuel pump - Irnproperly installed piston rings
• Incorrect starting procedure - Worn cylinder
• EVAP purge control valve faulty (California model only) • Oil-down
- Worn stern seal
- Worn valve guide
Runmon (continues to run with Ignition off)
• Excessive carbon build-up in engine
Oil I~vel too high
• Intake pipe leak
• Old or incorrect fuel • Pressure relief valve stuck closed
• Clogged oil filter, gallery, or metering orifice
• Incorrect oil being used
lack of power or high speed periormanc~
(See "Engine lacks power" and "Poor performance at high speed" for
low oil pressur~
more detailed troubleshooting information.)
• Altemator voltage low or battery low • Oil level low
• Ignition system faulty (see Section 17) • Plugged oil filter or screen
• Improper ignition timing • Pressure relief valve stuck open
• Intake pipe leaks • Oil pump faulty
• Not enough fuel • Internal oil leakage
• Valve springs weak or broken • Incorrect oil being used
• Cylinder head gasket blown
• Carburetor malfunction (see Section 4) Oil contamination
• Oil or filter not changed often enough
Misfir~s at idl~ • Worn piston rings
• Dirty air cleaner
• Spark plugs gapped incorrectly Oil emulsification
• Spark plug caps faulty
• Entry of radiator coolant
• Ignition cables deteriorated - Blown cylinder head gasket
• Carburetor problems (choke, clogged jets, high float level, air system, - Leaky core plug
etc.)
". Leaky coolant passage
• Entry of water
Midmrange p~riormance poor
• Incorrect spark plug heat range No oil pressure
• Faulty spark plugs
• Oil level too low; no oil
• Improper ignition timing (see Section 17)
• Broken oil pump drive chain
• Low engine compression
• Broken oil pump drive shaft
• Low fuel pump pressure
• Internal leaks
• Improperly adjusted throttle linkage
• Faulty oil pump

3-7
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 Maintenance
Troubleshooting (ccmt'd) ~~~

Poor Handling Check tire and suspension pressures

1. If steering is heavy -----------.------------"'i

!'

!' . Steering bearing adjustment nut too

tight
• Damaged steering head bearings

2. If either wheel is wobbling ...... • Excessive wheel bearing play

• Bent rim
• Improperly balanced or
misaligned wheels
• Swing arm pivot bearing
excessively worn
• Bent frame

3. If the motorcycle pulls to one side -=======----~======-__;II!'II!' • Bent frame

• Front and rear wheels
not aligned
• Bent front fork
• Bent swing arm

Engine Does Not Sta.rt or Is Hard to Sta.rt

POSSIBLE CAUSE
1. Check fuel flow to carburetor NOT REACHING CARBURETOR ===-===.11> • Fuel tank empty
• Clogged fuel line or fuel filter
REACHING CARBURETOR • Sticking float valve
• Faulty fuel pump
• Faulty fuel pump relay

1
2. Perform spark test WEAK OR NO SPARK '=====~==--"II!'
• Clogged fuel tank cap vent hole

• Ignition system (see Section 16)

GOOD SPARK

3. Test cylinder compression LOW COMPRESSION II!' • Low battery charge

• Improper valve clearance
COMPRESSION NORMAL (Faulty hydraulic tappet)
• Valve stuck open
• Worn cylinder and piston rings
• Damaged cylinder head gasket
• Seized valve
• Improper valve timing
• Worn or damaged valve seat
• Warped or cracked cylinder head

4. Start by following normal procedure ENGINE STARTS BUT STOPS II!' • Improper choke operation
• Carburetor incorrectly adjusted
ENGINE DOES NOT FIRE • Intake pipe leaking
• Improper ignition timing
(see Section 16)

1
5. Remove and inspect spark plug WET PLUG II!'
• Fuel contaminated

•
•
Carburetor flooded
Incorrect choke cable free play
• Cylinder flooded
• Air cleaner dirty
• Faulty carburetor (Rich mixture)
• Excessive use of the accelerator
pump

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 POSSIBLE CAUSE
1. Raise wheels of the ground and spin by hand WHEELS DO NOT SPIN FREELY ~~=~"'""""!iI>lI>o • Brake dragging
• Worn or damaged wheel bearings
WHEEL SPINS FREELY • Wheel bearing needs lubrication
I . Rear axle nut excessively tight
~ • Final gear bearing damaged

2. Check the tire pressure PRESSURE LOW ~==~===~==. . . . Punctured tire

• Faulty tire valve
PRESSURE NORMAL
t
3. Check clutch slipping CLUTCH SLIPS ==~~=======";iI» • Faulty clutch hydraulic system
• Clutch spring weak
CLUTCH ENGAGED PROPERLY • Worn clutch disc/plate

~
• Warped clutch disc/plate

4. Accelerate lightly ENGINE SPEED DOES NOT INCREASE ~-..;.> • Incorrect choke cable free play
• Clogged air cleaner
ENGINE SPEED INCREASES • Restricted fuel flow
• Clogged muffler
• Clogged fuel tank vent hole
• Faulty carburetor
• Faulty fuel pump
• Faulty fuel pump relay
• Faulty hose in emission control
system
• Faulty EVAP purge control valve
(California model only)
• Faulty EVAP carburetor air vent
control valve (California
model only)

5. Check ignition timing INCORRECT ~=~========~~+ • Improper ignition timing

(see Section 16)
CORRECT
t
6. Check hydraulic valve NOISE HEAD ======~===~-__.. • Clogged hydraulic valve oil holes
• Faulty hydraulic valve
NOISE NOT HEARD • Wrong hydraulic valve shim
• Entry of air into hydraulic valve

1
7. Test cylinder compression TOO LOW ~============~Il>
•
•
Worn valve seat or camshaft
Oil level too low

• Valve stuck open

• Worn cylinder and piston rings
NORMAL • Leaking head gasket

!
• Improper valve timing
• Faulty hydraulic valve

8. Check carburetor for clogging CLOGGED ~~======~==="'""""!1l>1I>o • Carburetornotservicedfrequently

enough
NOT CLOGGED
t
9. Remove spark plug FOULED OR DISCOLORED ==-~~=__"Il> • Plugs not serviced frequently
enough
NOT FOULED OR DISCOLORED • Spark plug with incorrect heat

~
range

10. Check oil level and condition INCORRECT =----=-==-~__.. • Oil level too high
• Oil level too low
CORRECT • Contaminated oil
t
11. Remove cylinder had cover VALVE TRAIN NOT LUBRICATED PROPERLY";> • Clogged oil passage
and inspect lubrication • Clogged oil control orifice
• Clogged oil filter or screen
!
VALVE TRAIN LUBRICATED PROPERLY
~
(confd)

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 Maintenance
Troubleshooting (cont'd)

Engine lacks Power POSSIBLE CAUSES

12. Check for engine overheating OVERHEATING "~"~----------lI!>~ • Coolant level too low
• Fan motor not working
NOT OVERHEATING (thermostatic switch faulty)
• Thermostat stuck closed
• Excessive carbon build-up in
combustion chamber
• Use of poor quality fuel
• Improper ignition timing
(see Section 16)
• Lean fuel mixture

13. Accelerate or run at high speed ENGINE KNOCKS ----------ll
!>ll> • Worn piston and cylinder
• Wrong type of fuel
ENGINE DOES NOT KNOCK • Excessive carbon build-up in
combustion chamber
• Ignition timing too advanced
(see Section 16)
• Lean fuel mixture

Poor Performance at Low and Idle Speeds

1. Checl< ignition timing and hydraulic INCORRECT - - - -----~--mm~'_l-lI!>lIl> • Clogged hydraulic valve oil
valve noise hoses
• Faulty hydraulic valve
CORRECT • Improper ignition timing

2.
~
Check carburetor pilot screw adjustment INCORRECT----------~~ • See pilot screw adjustment
(Section 4)
CORRECT
~
3. Check for leaking intake LEAKING--·~-----------lI!>~ • Loose carburetor insulator
pipe and vacuum tubes • Damaged or deteriorated
vacuum tubes
NO LEAK

~
4. Perform spark test WEAK OR INTERMIHENT SPARK - - - - P o
Po • See ignition system
(Section 16)
• Faulty carburetor air
system (see Section 4)
Poor Performance at High Speed
1. Check ignition timing and INCORRECT -------.----~lIl>po • Clogged hydraulic valve
hydraulic valve noise • Faulty hydraulic valve
• Improper ignition timing
CORRECT (see Section 16)
t
2. Disconnect fuel line at carburetor FUEL FLOW RESTRICTED------~popo • Fuel tank empty
• Clogged fuel line or fuel filter
FUEL FLOWS FREELY • Clogged fuel tank cap vent hole
• Sticking float valve
• Faulty fuel pump

1
3. Remove Carburetors and CLOGGED - - - - ----."""""".,,.~
• Faulty fuel pump relay

• Carburetor not serviced

clogged jets frequently enough
NO CLOGGED JETS
~
4. Check valve timing INCORRECT -~-----------~po • Camshaft pulley not installed
properly
CORRECT
~ WEAK--------------~1Il> • Faulty spring
5. Check valve spring tension
NOT WEAKENED
~""-_•." . - - - - - - - - - - - - - - - - - - - - - - - - - l I l > l I ! > • Faulty carburetor air system
(Section 4)

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 Hydraulic Valve Adjuster System
Noisy Tappet
POSSIBLE CAUSE
1. Check for low oil level. INCORRECT ~~~--~~~-~--'. • Contaminated oil
Ride for five minutes with the engine • Use of poor quality oil
speed over 3,000 rpm.
Check oil level and condition.

CORRECT

2.
+
Check oil pressure INCORRECT =--~==--~=---. • Clogged oil filter screen
• Clogged oil filter
CORRECT • Oil level too low
• Faulty oil pump
• Relief valve stuck open

I
• Internal oil leakage
• Worn crankshaft bearing
• Clogged oil passage
• Clogged oil pipe

3. Remove cylinder head cover and check

lubrication
NOT LUBRICATED PROPERLY ... Clogged
-=--~
passage
camshaft holder oil

• Clogged oil control orifice

CORRECT

4.
+
Remove hydraulic tappet and check it. INCORRECT ~==~-~==~==~'. • Plunger sticking
• Faulty hydraulic tappet
CORRECT • Air in hydraulic tappet
• Worn or sticking hydraulic tappet
• Improper hydraulic tappet

5.
1
Disassembly camshaft holder and
check parts
INCORRECT ====~=~-""-,~
installation

• Worn or damaged rocker arm or

shaft
• Worn valve stem
• Broken or weak valve spring
• Use of improper shim
• Improper installation
• Worn carnshaft
low Cylinder Compression
1. Check oil level and INCORRECT =-===~=--,,-=,--+ • Contaminated oil
condition • Use of poor quality oil

CORRECT

2.
+
Check oil pressure INCORRECT --~~--=-_.=--~+. • Use of poor quality oil

NORMAL

3.
+
Remove hydraulic tappet INCORRECT --=~-~~~-~~~-+. . Sticking hydraulic tappet
and check it • Faulty hydraulic tappet
• Improper hydraulic tappet
CORRECT installation

4.
+
Disassemble camshaft holder and check INCORRECT =~===~-"==~~ • Worn or damaged rocker arm
parts or shaft
• Use of improper shim
CORRECT • Improper installation

5.
+
Check valve and valve seat INCORRECT ~m=~~==~= ====-l.~ • Worn valve seat or valve face

CORRECT -~-~===~-~==~=~~=~=~~~==~=~~~=-J.~• Engine overrevving

3..11
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 Maintenance
Maintenance Schedule
Perform the PRE-RIDE INSPECTION in the Owner's Manual at each scheduled maintenance period.
I: Inspect and Clean, Adjust, Lubricate, or Replace if necessary.
C: Clean.
R: Replace.
- - - - - . - - - - - - . ---~·~ODOMETERREADING (NC)TE1)
FREQUENCY ..,.~ .._ • _ •• .._ Refer
NOTE x1000 km 1_ ~::..... 12.~_~. 25.6 a2.0
__ 38:.~ to
Page
ITEM x1000 ml 0.6 4 8 12 16 20 24
- -- --"--'-- +--+-----:--j
• Fuel Line I I I 3-16
~, ,.~---~--._.--.-. +.. . . _+---+--_If--~-+-----
• Th rattle Operation _._... _,._-~.... -_.- I I I 3-16
Carburetor Choke I
(j) - - -......- , . - - - . _ . _ . -...._-.~--..... . __ m - •••• .........,I---+--+--f--I---3-17
I I
:::2: Air Cleaner (Note 2) R R 3-18
1--+::---..- - - - - . . . - - -.._ - -...... ---+-.. .- .-::-+-:,,""';-"'""::--1 --..+-.......-1---1--------1
~ .g_r~an~k~c_a_s_e~_re~~ther (N_ote...~... C C C C C C 3-19
o Spark Plugs R R R 3-19
~ EngineOil ....__..__.....__. _ _ _ -+--R R R R 3-13 ,..-
ill Engin~_O_il_F_il.!e_r _ _.._ R R R R +_3_-_13_--1
II: Carburetor Synchronization I I I 3-20
z: -----._-.. - - - " - - - -....---~ . . ._ ..--.-+-~---+-, ..- - , '~'" - .. -1--.------1
o Engine Idle Speed I I I I I I 3-21
CJ5 'Rad-ia-tor Coola-nt-"-'''---'-- .--_.-(-No-te-sj-···..-·,"-"" - ...- ''1'''' -"'- . . - 1-.. -·~~R---·t--3--2-2---
(f) _~ . • . ...._ . , , _...._ .., , _..._ ....._ ...,,_... .._
~ Cooling System I I I 3-23
w .----- - - - - - -.. . ---~.- f - - - . _...... - .....-1---- .~-.--+---. _.- -.-~--+
Pulse Secondary Air Injection 3-24
System
.,,--_._... _.~---_ .. --_._.._ . . _~---+_.+

Evaporative Emission 3-24

I---.+C_o~n~t!~Syst.~_~. ~Note ~.~.__.. ...
I-_--+----'i--Timing Belt___ .. .._ ....._ _ .. Every 100,O~~.1~? km) I 7-5
Final Drive Oil I I R 3-15
I--+-~-"-'.--'''- . . - - - -.. - ...- . . . . - -.-..-+----I--+-~_If---+---+---__+-----l
Battery I I I 3-25
r--+.. . . . . .
Brake Fluid (Note 5) I I R I I R 3-26
. - - - -..-,--.--. --..- - - - -..- .~ --- -._- ..- --.......,f---+-- ~
(f) Brake Pad Wear I I I I I I 3-26
~ Brake System, - -..- - - ..-,.-.----..- ..- - - . - - '-j'- '-'- -'1 I I 3-27
I-- ..- .._ . -.....- _ ....- .._ ....-.. ...-........_ .....- ....~-_ ........_ ......- f.-- ..- ..........._ ... - ......- -. ~..... - ...- ....- ....~
Brake Light Switch
o - . . - -----..- . -.....- . . . . .- . . .- .
~ --~ . . . - ._...- ._- . ._ . _ _.. . ._....- I . .- 1-.-... I I
..-
3-28
----I
W Headlight Aim I I I 3-28
!:; ..- - . _ - -..".-~._-.- . . .-.. _ ......- .....- -...- -_..- - _..- f--..._ ......- ...- f-....-f--...-f..- -I-----j-
...... Clutch System I I I 3-29
·....·-·-(N~te5)1
ill
a::.... C'MChFlui'(j-'''''''
... _ ...._ _.._ . .__.. ._ _..__ F-j R I R
. 3'~~
_~_. ._
z . Reverse Operation A & SE models only I I I 3-30
o Side S t a n d - - - - · - · - · - · -.. ·--·-~ -'I'" f-.... I I 3-31
CJ5 _ _~...._ ...._ ._....._._... ..._ _..._ ......_ ....._ ......
(j) • Suspension I I I 3-31
:::2: F-:--f-::-~-.- . . .- .--.. - . .- - - -..- . . .- . .- _... . . .- - . . .- -j.--..........jf--f_-----j
w, 1---.+--_.._
Cruise Valve Element
- - _ ..._.-
A & SE models only
....- -..~-- ..+.-.......,--.......,--f_--~
R 3-35
z: Air Pump Element
o 1---.+-..- -....._.....- ..- -..-
A & SE models only
..- - - -.. - ...- --1-.
C 3-33
..._ _.... _ ....- . - -..4 - - - - _ 1
Z Air Drier A & SE models only I I I 3-34
..._. . _ . -........_~ ..._ - - _..-... ...- _.....- ...- _.......-1--......- ......- ...~ -"-'" " - - - - - - - _..- -....-
* Nuts, Bolts, Fasteners I I I I 3-35
..... "-'''-''---''-'_._'- ..._ . _ - -..- - - -......- .....- ....-.~.--.......- ..._ ..-.I-.....- ... f.--......_- f-----".- ...- - - - -
Wheelsrrires I I I 3-36
.........._~- _ _ ~---_._- -.... .. - -~._- --_ _ - - ..- 1-- --1--... . ----
Steering Head Bearings .L...... .._ .....
I
............._ ....._ ....._'--....
I ......_ .....
I
~_'"_....
I 3-37
....._

Should be serviced by an authorized Honda dealer, unless the owner has proper tools and service data and is mechanically qualified.
•* In the interest of safety, we recommend these items be serviced only by an authorized Honda dealer.
NOTE
1. At higher odometer readings, repeat at the frequency interval established here.
2. Service more frequently when riding in unusually wet or dust areas.
3. Service more frequently when riding in rain or at full throttle.
4. California type only.
5. Replace every 2 years, or at indicated odometer interval, whichever cornes first. Replacement requires mechanical skill.
----------

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 Engine Oil level

Start the engine and let it idle for a few minutes.

Stop the engine and put the motorcycle on its center stand
on level ground.
Remove the dipstick, wipe it clean, and insert the dipstick
without screwing it in.
Make sure the oil level is at the upper level mark of the dip-
stick. If the oil level is low, remove the oil filter cap and add
the necessary amount of recommended oil: Honda
4-stroke oil or equivalent API service classification SF or
SG, SAE 10W-40.

The viscosities shown in the chart may be used when the

OIL VISCOSITIES
average temperature in your riding area is within the indi-

..J.
cated range.
Reinstall the dipstick and oil filler cap. Check that there
SINGLE
are no oil leaks. GRADE
Check the oil pressure warning light after the engine
starts. The light should go off after one or two seconds.
MULTI-
GRADE
~L LSi(._
-10 0 10 20 30 40C
20 40 60 80 100°

Engine Oil & Filter Change

NOTE
o Change engine oil with the engine warm and motor-
cycle on its center stand to assure complete and
rapid draining. ~
-- I ~l~C/- ~ s;r'_
Stop the engine. Remove the oil filler cap, oil drain bolt,
and sealing washer.
~~~~~~~
, ,
\\
SEALING WASHER DRAIN BOLT
Remove the under cover (see page 13-11).
Remove the oil filter with a filter wrench and let the remain-
ing oil drain out. Discard the oil filter.
OIL FILTER WRENCH
Tool:
Oil filter wrench
07HAA-PJ70100
Check that the sealing washer on the drain bolt is in good
condition. Install the bolt.
Torque: 38 N-m (3.8 kg-m, 27 it-Il:»
Replace the oil filter with a new one. Check that the oil fil-
ter a-ring is in good condition. Coat it with oil before instal-
lation. Install and tighten the oil filter.
Torque: 10 N·m (1.0 kg-m, 7 H-Il:»

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 Maintenance
Engine Oil and Filter Change (cont'd) ---=-=-~

Fill the engine case with the specified quantity of the

recommended oil (see page 2-2). Reinstall the oil filler
cap and dipstick.
Start the engine and let it idle for a few minutes, then stop
the engine
Make sure that the oil level is at the upper level mark on
the dipstick.
Make sure that there are no oil leaks.
Recommended oil:
Honda Ii-Stroke Oil or Equivalent O-RING
API Service Classification - SF or SG
SAl: "lOW-liC

Oil Pressure Check - - - - -

Remove the under cover (see page 13-11).

Disconnect the oil pressure switch wire. Remove the oil
pressure switch and attach an oil pressure gauge to the
pressure switch hole.
Tools:
Oil pressure gauge
Commercially available
Oil pressure gauge attachment
Commercially available

Start the engine and check the oil pressure.

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 Stop the engine,
Apply sealant to the pressure switch as shown and install
it.
Torque: 12 N~m (1.2 kg-m, 9 ft-Ib)

CAUTION
" To prevent damage to the engine cover threads,
do not overtighten the switch.

Connect the switch wire and install the rubber cover.

00 NOT COAT THiS AREA
Check that the oil pressure warning light goes out a few J mm 11:).1 inl
seconds after turning the ignition switch ON.

Check
OIL FILLER CAP
Place the motorcycle on its center stand on level ground.
Remove the oil filler cap.
Check that the oil level reaches the lower edge of the oil
filler cap hole.
Check for leaks, if ttle level is low. Pour fresh oil through
the oil filler hole until it reaches the lower edge.

Change
Remove the oil filler cap and drain bolt to drain all oil from
the final gear case. Install the drain bolt securely.
Fill the gear case with the recommended oil to the correct
level (the lower edge of the oil filler cap hole).
Oil Capacity: 140 cc (4.7 0::1::) after draining
Recommended Oil: SAE #80
Install and tighten the filler cap
FILLER
Torque: 12 N-m (1.2 kg~m, 9 ft-Ib) CAP

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 Maintenance
Fuel line -~=------=---=---=---=---=---
Remove the seat and top compartment (see page 13-9).
Check the fuel lines. Replace any that show deterior-
ation, damage or leakage.

Throttle Operation ==------------==.. . . . . ------~.

Check for smooth throttle grip full opening and automatic FREEPlAV
full closing in all steering positions. 5-8 mm
('%.-0/.. inl
Make sure there is no deterioration, damage, or kinking in
the throttle cables. Replace any damaged parts.
If throttle operation is not smooth, check the inner cable
condition. Replace any frayed or kinked cables.
Make sure throttle grip free play is 5-8 mm (3/16-5/16 in)
at the throttle grip flange.

THROTTLE GRIP

Make minor adjustments with the throttle grip adjuster as ADJUSTER

shown.
To adjust, loosen the lock nut, turn the adjuster as
required, and tighten the lock nut.

LOCI< NUT

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 Make major throttle grip free play adjustments with the ADJUSTER
cable adjuster as shown.
To adjust, loosen the lock nut, turn the adjuster as
required, and tighten the lock nut.
Recheck throttle operation and install all removed parts.

Carburetor Starting Enrichment Valve """"""'~"""""""'~------

The GL1500 choke system uses a fuel enriching circuit

controlled by a starting enrichment valve. CHOKE LEVER

The starting enrichment valve opens the enriching circuit

via a cable when the choke lever on the handlebar is
pulled down.
Check for smooth choke lever operation. If operation is
not smooth, check the inner cable condition.
Replace the cable if it is frayed or kinked.

Remove the air cleaner housing (see page 4-18).

When operating the choke lever, check for smooth valve
operation between the fully closed and fully open posi-
tions.

3-17
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 Maintenance
Carburetor Choke (cont'd) ----~ --------------=
To adjust, loosen the lock nut and turn the adjuster as
required. Tighten the lock nut.
Reinstall the removed parts in the reverse order of disas-
sembly.

LOCK tuT \ ADJUSTER

Remove the following:

" top compartment (see page 13-9)
" air duct
" air cleaner housing cover
" air cleaner element
" California only: evaporative emission storage element
from the air cleaner element

NOTE
" Do not replace the evaporative emission storage
element.

Discard the air cleaner element in accordance with the

maintenance schedule. @ California Model
Also, replace the element any time it is excessively dirty EVAPORATIVE EMISSION
or damaged.
Reinstall the evaporative emission storage element in the
new air cleaner element.
Install the remaining parts in the reverse order of
STORAGE ELEMENT

[~L_ ;S
removal.

" Install the air vent pipe with screens as shown.

SCREWS

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 Crankcase Breather ~"""'"

Maintemmce
Remove the plugs from the crankcase breather tubes to
empty any deposits.
Install the crankcase breather tube plugs.
NOTE
e Make sure that the drain tube is installed to the stor-
age tank.
@ Service more frequently when riding in rain, or at full
throttle, or if the deposit level can be seen in the trans-
parent section of the drain tube. BREATHER
TUBE PLUGS

Removal (not necessary for maintenance)

CMf\lKCASE BREATHER
Remove the carburetor (see page 4-19). ruBe ("A" MARKED TUBE)
~
Remove the crankcase breather storage tank mounting o ".~

bolt and crankcase breather storage tank.

Empty any deposits from the storage tank and reinstall it.

~~RA"KCAS.
, BREATHER TUBE

Spark Plugs ----~

Remove the fairing lower covers (see page 13-12).

Disconnect the spark plug caps and clean any dirt from
around the spark plug bases,

SIDE
Remove and discard the spark plugs. ELECTRODE
CENTER
Measure the new spark plug gap with a wire-type feeler ELECTRODE
gauge
Spark Plug Gap: 0.8-0.9 mm (0.031-0.035 in)
If necessary, adjust the gap by carefully bending the side ---
Recommended Spark
electrode. With the plug washer attached, thread each NGK NO
Plugs:
spark plug in by hand to prevent cross-threading. Tighten
Standard
==w._~.

----
OPR7EA-9 X22EPR-U9
the spark plugs another 1/2 turn with a spark plug wrench ,
'"

to compress the plug washer. Cold climate (below

OPR6EA-P X20EPR-U9
5° C, 41 0 F):
Torque: 16 N-m (1.6 kg-m, 12 ft-Ib) """"--,,,,,,,,,,,,, """"

Extended high speed

OPR8EA-9 X24EPR·U9
Connect the spark plug caps. riding _ _ _ _ _ _.
b-._~~.

--

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 Maintenance
Carburetor Synchronization w-=~ ~~

LEFT
" Synchronize the carburetors with the engine at nor-
mal operating temperature, the transmission in neu- 7C\Ii-T r --
tral, and the motorcycle supported on its center stand. NO
IGRNI
•
(> .i i
1

,~~,<)ii,
:
\J
i[;
\J',~I\:I '

.
TUBE~
' .~)
Remove the following:
" fairing lower covers (see page 13-12).
" right fairing inner cover (see page 13-12).
. . . . . . •.'. .:-. . . >:.. . ~. . ~ "f
.•. . :. '.'>.~'
~'::c~''''\2: '.}( -.-. " ~.".'. '•.'-
. . "=-..

.-. '-<._<~=~,.::.:'
.
' ;;.,•...••••.•.
t
'....
..
'.

. ,
" NO.6 (GRN) vacuum tube from the left intake manifold
vacuum tube joint.
" plug and washer from the right intake manifold. VACUUM TUBE JOINT

Install the vacuum gauge attachment into the right intake

manifold. VACUUM
GAUGE .
Install the vacuum gauge probes to the intake manifold
joints.
Tool:
Carburetor vacuum gauge set
07LMJ-001 01 OA or M937B-021-XXXXX
Vacuum probe 2"
07LMJ-001000A or M983X-350-XXXXX

Start the engine and adjust the idle speed With the
throttle stop screw.
idle Speed: 800 ± 80 rpm
Check that the difference in vacuum readings is 40 mm
(1.6 in) Hg or less,

If adjustment is necessary, remove the access plug in the

right fairing inner cover, and turn the adjusting screw until
the vacuum gauge readings are within specification.

Remove the right cooling fan shroud grommet and insert

a screwdriver into the shroud.
NOTE
" The left (base) carburetor cannot be adjusted.

Start the engine and rev it up several times.

Recheck the synchronization and idle speed.

CAUTION
" Take care to avoid injury working in proximity to
the fan motor.

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 Carburetor Idle Speed ~~~~~~~~~~~~~~~~-

Open the top compartment cover.

NOTE
-_ ..... - - - -
,,- '~~-------_ .....~..._ -
@ Inspect and adjust idle speed after all other engine
adjustments are within specification.
" The engine must be warm for accurate adjustment.
Ten minutes of stop-and-go riding is sufficient.
"'''~--''''' .

Warm the engine, shift to Neutral and place the motor-

cycle on its center stand. Turn the throttle stop screw as
required to obtain the specified idle speed.
Idle Speed: 800 ± 80 rpm

Cylinder Compression ~~~~--~~-

NOTE
@ The engine must be warm for accurate readings.

Stop the engine, then disconnect the spark plug caps and
remove the spark plugs.
Turn the engine stop switch OFF.
Insert the compression gauge. Open the throttle all the
way and crank the engine with the starter motor.

NOT:..;:E=----__
@ Crank the engine until the gauge reading stops rising.
The maximum reading is usually reached within 4-7
seconds.

Compression pressure: 13.0-17.0 kg/cm2 (185-242 psi)

If compression is low, check for the following:
-Improper valve clearance
- Leaky valves
- Leaking cylinder head gasket
- Worn pistonlring/cylinder
If compression is high, it indicates that carbon deposits
have accumulated on the combustion chamber and/or
the piston crown.

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 Maintenance
Radiator Coolant ~~~=

RESERVE TANK CAP/LEVEL GAUGE

.. The engine must be run at normal operating tempera-
ture.
l'\
Stop the engine
Support the motorcycle on its center stand.
Remove the ignition switch cover (see page 13-9).
Remove the reserve tank cap/level gauge

RESERVE TANK

The level should be between the Upper and Lower levels.

If necessary fill to the Upper level line with a 50/50 mixture
of distilled water and antifreeze.

.. Avoid scalding; never remove the radiator cap

when the engine is hot. The coolant is under
pressure.

If the reserve tank is empty, remove the top inner cover

~
and radiator cap (see page 5-7).
Run the engine for 2-3 minutes to allow air to escape.
Fill the radiator with coolant and install the cap. Fill the \
reserve tank to the Upper level line of the gauge and
install the cap.

3-22
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 Cooling S y s t e m - - - " ' - - - - - - - - - - - - - - - - -

Remove the radiator shroud (see page 13-11).

Check the air passages for clogging or damage.
Straighten bent fins or collapsed core tubes.
Remove insects, mud, or any obstructions with com-
pressed air or a low pressure water spray.
Replace the radiator if the air flow is restricted over more
than 20% of the radiating surface.

Remove the following: UPPER RADIATOR HOSE

" fairing front cover (see page 13-11). t -))

. .-/

" under cover (see page 13-11).

" fairing lower cover (see page 13-12).
" right top inner cover (see page 13-9).
Check the cooling system hoses for cracks, deteriora-
tion, or other damage using a suitable inspection mirror.
Replace if necessary.

~
lOWER RADIATOR
HOSE

WATER HOSES (
t. ,;.
!~ ~----1"2!#''''''~_
I /
/

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 Maintenance
Pulse Secondary Air Injection (PAIR) System -------~

Remove the following:

@ fairing lower covers (see page 13-12)
@ fairing inner covers (see page 13-12)
Move the heat guard forward.
Using an inspection mirror, check the air supply tubes
between the pulse Secondary air injection (PAIR) check
valves and exhaust ports for deterioration, damage, or
loose connections. Make sure the tubes are not kinked or
pinched.

NOTE
.. If the tubes show any signs of heat damage, remove
the PAIR check valves and inspect for damage (see
~._-_
page 4-57).
......
_'---_.,,--~ ...__ ..... ..._--_......" .......
"

Check the vacuum tube between PAIR control valve and

intake manifold through PAIR solenoid valve for deterio-
ration, damage or loose connections.
Make sure the tube is not kinked or pinched.
For PAIR solenoid valve inspection, see page 4-58.

Evaporative Emission Control System ~~~~~~~~~~~

(California model only)

TO EVAP CAV
Check the hoses between the fuel fill cap, evaporative CONTROL VALVE
AND EVAP PURGE
emission (EVAP) canister, EVAP purge control valve,
CONTROL VALVE
EVAP carburetor air vent (CAV) control valve, and carbu-
retor for deterioration, damage, or loose connections.
Also check the tubes for clogging due to bending or twist-
ing.
Check the EVAP canister for cracks or damage.
Refer to the hoses and tubes routing/connection diagram EVAP
(see pages 4-7 and 4-8). CANISTER

3..24
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 Battery =~~--~--~-

Remove the right rear side cover (see page 13-8).

-'----------
Inspect the battery fluid level in each cell.

@ The battery gives off explosive gases; keep

sparks, flames and cigarettes away. Provide
adequate ventilation when charging.
.. The battery contains sulfuric acid (electrolyte).
Contact with skin or eyes may cause severe
bums. Wear protective clothing and a face
shield.
If electrolyte gets on your skin, flush with
water.
If electrolyte gets in your eyes, flush with
water for at least 15 minutes and call a physi-
cian.
@ Electrolyte is poisonous. ,t.CAUTION
PIPING AS SHOWN BElOW.
- If swallowed, drink large quantities of water BATTERY ~
or milk and follow with milk of magnesia or ElBOW ';~
vegetable oil and call a physician.

When the fluid level nears the lower level, refill with dis-
BATTERy ~,~~--~------
tilled water to the upper level. BREATHER TUBE I
NOTE riiiSEiiTTitE BATTERY _BREATHER)
I TUBE SECURElY.
MT - 00
" Add only distilled water. Tap water will shorten the
service life of the battery.
G Apply a thin coat of grease to the battery terminals

when installing the battery

Replace the battery if sulfation forms or sediments accu-

mulate on the bottom (see page 17-7).
Make sure the battery breather tube is routed as shown
by the illustration on the battery caution label.

IIN'SERT-m BATTERY BREATHER \

\ TUBE SECURELY. ;
MT2-740

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 Maintenance
Brake Fluid ,,--~~~~=

Support the motorcycle on its center stand. Check the brake

lever system (front/right brake) reservoir level with handle-
bar turned so that the reservoir is level.

Remove the rear right side cover (see page 13-8). Check
the brake pedal system (front/left, rear brake) reservoir lev-
el. If the level nears the lower level mark, remove the cap
or cover, set plate and diaphragm.

Fill the reservoir with DOT 4 brake fluid to the upper level
mark.

CAUTION
o Do not remove the reservoir cover until the handlebar 1/ (@
has been turned so that the reservoir is level.
• Do not mix different types of fluid, as they are not com-
patible with each other.
II, =
I
• Do not allow foreign material to enter the system when I
I
filling the reservoir.
~y~~~ spili~~L!he !!!Jid on painted, ~astic or rub~~",,~rts.
If the level is low, check the entire system for leaks.
Refer to Section 14 for brake bleeding procedures.

Brake Pad Wear - - - - - - -

FRONT WEAR LIMIT
Front Brake Pad Wear Inspection
Inspect the pads visually from the rear of the caliper.

Replace the brake pads if the pad wear groove reaches the
edge of the brake disc.

CAUTION
• Always replace the brake pads as a set to assure even
~~~~~.~:_._.w_~,,_. . _._. "'' '. . .' '. . .' ._ _.~. ''''~._. '''''~. __
Refer to page 14-7 for brake pad replacement.

Rear Brake Pad Inspection REAR

Inspect the pads visually from the back of the caliper.

Replace the brake pads if the pad wear groove reaches the
edge of the brake disc.

CAUTION
• Always replace the brake pads as a set to assure even
discpre~~re:-.." ..__.__,,,..._ .._.__.__

3-26
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 General Inspection
Remove the following:
" disc covers (see page 13-18).
" fairing lower covers (see page 13-12).
@ front side covers (see page 13-8).
" rear side covers (see page 13-8).
@ fairing inner covers (see page 13-12).
Inspect the brake hoses, metal lines and fittings for dete-
rioration, cracks and signs of leakage. lighten any loose
fittings. :::7BRAKE HOSES/METAL LINES
Replace hoses, metal lines and fittings as required.
Brake Pedal Height: Om10 mm (OmO"4 in)
Adjust brake pedal height so the pedal is 0-10 mm (0-0.4
in) above the upper surface of the foot peg.
======------=:::::::,

~_\'_~-m-{-(O-.O-:4-i-nl--~-..--/
CAUTION
_mm • _

Incorrect brake pedal height can cause brake

@

___dr~_._._ . ._ _.. ~_,, _

A-====.·. =====--'
-l FOOT PEG

To adjust height, remove the right chamber protector (see

page 7-28).
Loosen the lock nut and turn the master cylinder push
rod. Tighten the lock nut.

@ Adjust the following after adjusting pedal height

- brake light switch (see next page).
- cruise cancel switch (rear brake) (see page 4-72).
_ .- "
,.~,,,,,_. ~=="~~'~="'='"

ADJUSTING NUT

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 Maintenance
Brake Light Switch ~~"""""""'~--------------

Remove the right front side cover (see page 13-8).

NOTE
.. The front brake light switch does not require adjust-
ment.

Adjust the brake light switch so the brake light comes on

when the brake pedal is depressed and brake engage-
ment begins.
Adjust by holding the switch body and turning the adjust-
ing nut. Do not turn the switch body.
ADJUSTING NUT

Headlight Aim - - - - - - - - - - - - - - - - - - - -
NOTE
.. Adjust the headlight beam as specified by local laws
~~~~.~ulations. .",,,_ _

.. An improperly adjusted headlight may blind

oncoming drivers, or it may fail to light the road
for a safe distance.

Adjust the headlight beam vertically or horizontally with

the adjusting knob or screws as shown in the chart.

NOTE
.. When making a minor vertical adjustment, remove
the trim holder; when making any horizontal adjust-
ment, remove the front grille.
~----------

"''''-'---''

Adjustment
_.VERTICAL HORIZONTAL
Major Minor Major Minor
Knob or screw 1 2 3 4
_._----_.
Turn
Down Up Left Left
clockwise
Turn
Up Down Right Right
counterclockwise
L ..._ _......, , _....._ _...

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 Remove the following (refer to Section 13):
@ left rear side cover
e left front side cover
c left fairing inner cover
Inspect the clutch hose, metal line, and fittings for deteri-
oration, cracks, and signs of leakage.
Tighten any loose fittings.
Replace hoses, metal lines, and fittings as required.
Check the system for leaks.

Clutch Fluid

Place the motorcycle on its center stand.

Check the clutch fluid level with the handlebar turned so
that the reservoir is level.
Check the clutch fluid level.
If the level nears the lower eve mark, remove the cover,
set plate, and diaphragm.
Fill the reservoir with DOT 4 brake fluid to the upper level
mark.

LOWER LEVEL
" The clutch reservoir upper level mark is inside the
reservoir.
e Do not allow foreign material to enter the system
when filling the reservoir.
@Avoid spilling fluid on painted, plastic or rubber parts.
@Do not remove the reservoir cover until the handlebar
has been turned so that the reservoir is level.
@Do not mix different types of fluid, as they are not
compatible with each other.

Refer to Section 9 for system bleeding procedures.

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 Maintenance
Reverse Operation (A & SE only) - - - - " " " "
Place the motorcycle on its center stand.
Check that the ignition switch is OFF. Remove the right
front side cover (see page 13-8). Check for smooth
operation of the reverse cables. Lubricate the reverse
cables, if necessary.

Reverse Engagement Inspection

Check both sides of reverse engagement lever alignment
and free play in accordance with the maintenance sched-
ule
Shift the reverse lever into the reverse position. Make
sure that the reverse gear is engaged by attempting to
turn the rear wheel by hand. It will not turn when the
reverse gear is engaged. REFERENCE
MARK
Make sure index mark A aligns with the reference mark. INDEX
Measure the index mark B free play. MARK B
INDEX MARK A
Standard: 2~3 mm (1/16-118 in)

If adjustment is necessary, first adjust the index mark A

INDEX IIIIARK A INDEX MARK B
position, then adjust the index mark B free play, as fol-
lows:
Loosen lock nut A and turn adjusting nut A so that index
mark A aligns with the reference mark. Then tighten lock
nut A.
Next, loosen lock nut B and turn adjusting nut B so the
index mark B free play is 2-3 mm (1/16-1/8 in). Then
tighten lock nut B.
After adjusting the reverse cables, move the reverse
ALIGN
lever and shift into reverse. Repeat shifting into reverse
several times.
Recheck the lever alignment and free play.

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 Side Stand,=------=

Check the side stand ignition cut-off system:

@ Place the motorcycle on its center stand and raise the
side stand.
@ Start the engine with the transmission in neutral, then
shift the transmission into gear with the clutch lever
squeezed.
" Lower the side stand.
@ The engine should stop as the side stand is lowered.
If there is a problem with the system, check the side stand
switch (see Section 16).
Check the side stand switch mounting bolts for loose-
ness. Check the side stand switch push pin for damage.

Suspensionm-----~

Do not ride a vehicle with faulty suspension.

Loose, worn, or damaged suspension parts
impair vehicle stability and control.

Front
Check the action of the front forks by compressing them
several times.
Check the entire fork assembly for leaks or damage.
Replace damaged components which cannot be
repaired.
Tighten all nuts and bolts.

Rear
Place the motorcycle on its center stand. Vigorously push
and pull the rear wheel from side to side. If there is any
free play or looseness, inspect the swing arm bearings for
damage (see page 12-26).
Check the swing arm for damage.
Check the shock absorbers for leaks or damage. A & SE:
Inspect the air hoses for deterioration and cracks.
Replace parts as required.
Tighten all nuts and bolts.

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 Maintenance
Suspension (cont'd) -------------~

GL i 500 A & SE: Inspect the air pressure of the right

shock absorber with the instrument panel gauge.
Turn the ignition switch to ON, P or ACC.
The air pressure will appear in the display whenever the
P. CHECK button is pushed.

NOTE
",,,,,,,-,,,,,,-,,,=.==,,,,,,,,,,,,,,,,,,,,,,=,,,,,_.=.,,

@ Push the INCREASE or DECREASE button to adjust

the air pressure while pushing the P. CHECK button.
_ _= m..= " " ' = " " = ' ' '_ _ ~''
" " - , ,............, , = '............

-,=•.:.-,
• m _
",,---L- AIR PRESSURE
o Never check or decrease air pressure while rid-
ing. Keep both hands on the handlebars while Conditions
riding. ...•_ ...-_.
_.--~_ __ __
... ..._-- - - - - - - -
Rear Air
Pressure Rider/ Riding
~ - _ _--t Conditions
Load--+_._.__.. _.~.

CAUTION
a psi One/ Ordinary or
@Always use the center stand when adjusting air (0 kg/cm 2 ) No Load city road
pressures. Do not use the side stand when riding
adjusting the air pressure, as you will get false
_press~~~in~_s_. ._ _.... _ I
57 psi Up to Rough road
The usable air pressure range under normal conditions (4.0 kglcm 2 ) maximum riding
is: 0-57 psi (0-4.0 kg/cm 2). weight limit
._--'---------'
GLi500 I: Place the motorcycle on its center stand on
firm level ground.
AIR VALVE CAP
Open the right saddlebag. Remove the air valve cap.
Check the air pressure using a pressure gauge.
NOTE
@ Some pressure will be lost when removing the gauge
from the valve. Determine the amount of loss and
compensate accordingly.
@ Do not exceed the recommended air pressure or the
ride will be harsh and uncomfortable.
.. A small amount of the suspension oil may be released
when the air valve is opened to reduce pressure. To
prevent getting any oil on the saddlebag, remove the
valve from the holder and point it away from the sadd-
__ - ......---_.__.- _ __
.......- ..... ....
_ _ _C--r0_nd_i!ion~_ _._._
.. ._---,

Rear Air
.._.Ieb?g..~ef?-~ red~.~ng 2Eessure..._ , _.._ .._ ..._m_ Pressure Rider/ Riding
Load Conditions
-_.._ .......:::..........-4-..........:._:....;"..:..:........--\
o psi One/ Ordinary or
(0 kglcm 2 ) No Load city road
riding

I
57 psi Up to Rough road
(4.0 kg/cm 2 ) maximum riding
..._.__._._,~_w_eight.l~~._it..........._

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 Air Pump Element (A & SE only) ~=------------

Remove the left saddlebag (see page 13-17).

Remove the air pump mounting bolts and free the pump
from the frame.

Slide the rubber cover from the air pump motor.

Remove the air pump element from the inside of the rub-
ber cover.

Wash the element in clean, non-flammable cleaning sol-

vent and allow it to dry thoroughly.

I


B_ _
<> Nevel' use gasoline 01' low flash point solvents
for cleaning the element. A fire or explosion
.~.DRV.
could result I
WASH IN SQUEEZE OUT PRO HONDA SQUEEZE OUT
SOLVENT SOLVENT FOAM FilTER EXCESS Oil
Soak the element in Pro Honda Foam Filter Oil or equiva- AND ALLOW OllOR
lent and squeeze out the excess. TO DRY CLEAN SAESO
THOROUGHLY GEAR OIL
Reinstall the element in the rubber cover and install the
cover onto the motor.

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 Maintenance
Air Drier (A & SE only) ~--

Inspection
Remove the seat (see page 13-8).
Inspect the desiccant color in the inspection window. The
desiccant should be blue.
If the desiccant is colorless, it must be replaced (see
below).

GLASS WINDOW

Desiccant Replacement
NOTE
~ Before disassembly, be sure to release air pressure
.~".~E~~~.g the air pressure control sWi!~~.:._""....._"_

Remove the air pump from the frame and disconnect the
air hoses from the drier (see page 12-31).
Remove the set ring from the air drier cover.
Discard the desiccant. Clean the inside of the drier body
with clean and dry cloth. Pack new desiccant. Install in
the reverse order of removal.

felT PACKING

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 Cruise Valve Element (A & SE only) - - - - - - - - - - -

Remove the left fairing inner cover (see page 13-12).

Remove the filter housing from the cruise valve element
assembly.
Remove the element from the element housing.
Replace the element in accordance with the mainte-
nance schedule.

Nuts, Bolts, Fasteners ~-,================-

Check that all chassis nuts and bolts are tightened to cor-
rect torque values (see page 2-8).
Check that all cotter pins, safety clips, hose clamps and
cable stays are in place.

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 Maintenance
WheelslTires
NOTE
.. Tire pressure should be checked when tires are
COLD.

Check the tires for cuts, imbedded nails, or other sharp

objects. Repair or replace, as required. Always replace
the tire if the sidewall is punctured or damaged.
RECOMMENDED TIRES AND PRESSURES:
""._-
Front Rear
Tire Size ,,-
130170-1863H 160/80-1675H
Up to maximum
2.25 (33) 2.80(41)
weight Ii mit
...-
Cold tire
Up to 90 kg (200
pressures 2.25 (33) 2.50 (36)
Ibs) load
kg/cm 2 (psi) "._.-
Maximum w eight
185 kg (408 Ibs)
limit
---

_ ~~[
Tire Brand
Tubeless Only K177
. _.._._~unl~_p _".._.. .. -

Check the front and rear wheels for rim runout (see Sec- ~!
tion 15).
Replace the tires before tread depth at the center of the
tire reaches the following limit:
Minimum Tread Depth:
Front: 1.5 mm (0.06 in)
Rear: 2.0 mm (0.08 in)

.. The use of tires other than those listed on the

tire information label may adversely affect han-
dling.
.. Do not install tube-type tires em tubeless rims.
The beads may not seat and the tires could slip
on the rims, causing tire deflation.
.. Any attempt to mount passenger car tires on a
motorcycle rim may cause the tire bead to sepa-
rate from the rim with enough explosive force to
cause serious injury or death.

CAUTION
.. Do not try to remove tubeless tires without spe-
cial tools and rim protectors. You may damage
the rim sealing surface or disfigure the rim.

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 Steering Head Bearings ---~-------------"""'"
Raise the front wheel off the ground using a jack under
the engine
Check that the front wheel turns freely and smoothly from
full left to full right.

" Check that the control cables are routed correctly and
do not interfere with steering .
.~---::~--,

Push and pull on the fork sliders and check that there is
no free play or looseness.
If the steering head bearings do not pass these tests,
inspect them for damage and proper adjustment (see
Section 12).

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 Fuel System
Service Information . 4..2 FuellevelSensorlGauge
Troubleshooting . 4..9 Air System Circuit
Fuel Tank . 4..15 Diagram .
Auto Fuel Valve . 4..16 Engine Control Module ..
Fuel Filter . 4..17 Intake Air Shot Air
Air Cleaner Housing . 4..18 (IASA) System . 4..47
Carburetor Removal . 4..19 Carburetor Air Jet
Carburetor Separation . 4..21 Control System .
Carburetor Disassembly . 4..23 Intake Air Temperature
Carburetor Assembly .... 4..26 (lAT) System .
Carburetor Tubes/Hoses . 4..34 Secondary Air
Carburetor Installation . 4..36 Injection System .
Intake Manifold . 4..37 Evaporative Emission
Pilot Screw Adjustment .. 4..39 (EVAP) Control System
Fuel Pump . 4..40 (California model only)
Fuel Reserve Sensors/ Cruise Control .
Indicator . 4..43

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 Fuel System
Service Information

" Gasoline is extremely flammable and is explosive um.:ler certain conditicms. Work in a well ventilated
area. Do not smoke or allow flames or sparks in the work area or where gasoline is stored.
" Do not bend or twist control cables. Damaged control cables will not operate smoothly and may stick
or bind, resulting in loss of vehicle control.

CAUTION
" Connect each numbered tube to the correspondingly numbered part of the solenoid valve, or the air
system will not work properly.

NOTE
" If vehicle is to be stored for more than one month, drain the float chambers. Fuel left in the float chambers may
cause clogged jets, resulting in starting and driveability complaints. To drain the chambers, remove the radiator
shroud (page 13-11) to gain access to the drain plugs, and then insert the screwdriver and loosen the drain plugs.

" Refer to Section 3 for throttle/choke cable adjustment.

" The vacuum chambers, accelerator pump and starting enrichment valve can be removed without removing the
carburetor assembly.
" The float chambers must be serviced with the carburetors disassembled.
" When inspecting the fuel pump, reserve sensor, level sensor and air system, check the system components and
lines step-by-step according to the Troubleshooting chart.
" To replace the fuel gauge, see Section 19.
" The follOWing air systems have the following components (not including air tubes and hoses):
- Intake Air Shot Air (IASA) System - Carburetor Air Jet Solenoid Valves, Intake Air Tem-
- Carburetor Air Jet Control System perature Sensor, Engine Coolant Temperature Sen-
- Intake Air Temperature (lAT) System sor, Engine Control Module, Ignition Pulse
- IASA Valve, IASA Check Valve Generator, Sub Air Cleaner
- IAT Vacuum Actuator, IAT Control Valve, IAT Check
Valve.
" All hoses used in the evaporation emission control system (California Model only) and pulse secondary air injec-
tion system are numbered for identification. When connecting one of these hoses, compare the hose number with
the vacuum carburetor tubes/hoses, page 4-34.
" Always replace used a-rings and cotter pins with new ones.
" For carburetor synchronization, see page 3-20.
" The Intake Air Shot Air (IASA) System supplies air to the intake manifolds during deceleration to prevent sudden
induction of strong manifold vacuum.
" Tube code example:

f~~
NO.5

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 t
CALIFORNIA MODEL
ONLY

Torque
Carburetor insulator band screw 5 N-m (0.5 kg-m, 3.6 ft~lb)

4-3
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 Fuel System
Service Information (cont'd) -~-

System location

FUEL RESERVE
INDICATOR

CARBURETOR AIR JET

~ __._, SOLENOID VALVES

FUEL
GAUGE
FUEL LEVEL
SENSOR

PULSE SECONDARY FUEL

AIR INJECTION RESERVE
SOLENOID VALVE SENSOR FUEL
PUMP

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 Fuel System
ri.I
Circuit Diagram:
A & SE Models

ACC TERMINAL
Pb (Intake Manifold) @ @

- - lA::n
r-RELAY BOX---, r-FUSE BOX ~
.1
~~' lrusE8-IIFusEii"l
1 )

ENGINE CONTROl. MODULE

1SA 1SA II 2 I
L __ J L __ J: ,I 3 I
!I 4 I

I'" j ~ ::;5!i.. ..x

4 S 14 I. 17 18 20 21 22 d .. '" ! I. 5 II

,lll!bJ ·
;~ ~ ~Ip ~ x iil
(ZiPoYEL)
II
I i-.. m!WUUU ' I' ,l!· i
FUEL GAUGE I}
I 5
6

IC
~ ~~ !
i 7 }

, ~ - - .I
~_I~
'~lIPOWllTJ
Fl£L --I ,~ I 12 II
I i I! IfOCATOR
I
To:lenibon
System
t
.; c:
6~ It
II.
II II

U·)UI'~I·H_~
~~
I

cu 10 .1
i I
U ~
~'"
13 )

~
fl
FUSE BOX RELAY BOX
INS""""" Iii
~ ~ ;~ FUSE No CIRCUIT RELAY No CIRCUIT
,

~J: ~ ~
I TAIL ILLUMI 15A 3 TAIL (MAIN)
11 IGN. CRUISE 15A 6 IGN CRUISE

I HTl
O

("WIlT) ~ [1.4P •

8l.K/LT-GRN;illIlUULT-GIIN

ai - -__•
x 8l.KJIIlN
GIlN!11LK
Ht _
_IBLU
GIlNI8..K
r· HTIBLU
GANllLK
.HTlIlLu-++HH---H+......,t----+I---4+--+---4__,
1 I I I I (J1P.WIlT~
[lP-GIlN) L.-.f-+-+--I--VEL''WHT--w-YELIWHT...I
~;:~RETOR ~1IED1WHT...frJl-1IED1WHT
I ,
SOLENOID
VAlVE 2
lILJ(iLToGllN{lJ-BLK'lT-GIIN
I......-BAN'WHT-{2}-BAN'WHT II II III I • I
IIEDIWHTm
~AED::[D::IIED
(14P-lILK)
CARBURETOR
AIR JET
SOLENOID
VALVE 3
BLK'lT-GIIN
(lPollED)
BLKiLT-GIlN '
, l..ll......
I
I

!i
I!
5
0:-
'" <:!
iil '"

~""~~ f ,
!i ~'"
I!.
• •
~ 0:-~
0
--

~("'JI:I~ 1f"'J*~m] .~..."~~ --~

[jiil P~R
OFF V(lPOGllNJ iii '"
SOlEHOOD -
Ecr SENSO - T" I

~
ENGINE STOP SWI1CHo

R VAlVE ...... - -
ACC

_ ~~ESERVE

Il'_K Bl.ACK 8IlI'o IlROWli

Y(~ YElLOW 0IlII 0IlAHGE
BLu BLUE LT-Illu ~IGHT BLUE

IGMTION SWITCH
GAIl
It\1l
.HT
GIlEDo
lIED
.IITE -
LT~

GIIY
LIGHT GREEN
f'N(

GRAY

4-5

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 Fuel System
Service Information (cont'd)
!'iii
Circuit Diagram:
I Model

To: Pb (InlMe Mrolold)

A
RELAY BOX AEL.AY BOX FVSE lOX FVSE lOX

~~jMill jMiiil
- -
lRI~
L
'SA
__ J L __ J: ::Fi [J G.~.~.~t.·.
1 2 ,:;3..,
!i
i I•••
d' ~
:i~ ~. ~ i i i
:l1! •••
iii
~
• i ;
~.

88
88
. . '.: . ~
ItSTIUIENT
5]
'·;:6
. ::'
•
~

FUSE BOX RELAY BOX

FUSE No CIRCUIT RElAY No CIRCUIT
8 TAIL ILLUMI 15A 3 TAIl (MAIN)
11 IGN 15A 61GN

!i ~
~ ~
~ ;
:-mJ~ ~ '" Ii! I
,.
!i ~
~ i I@
:z: >? ""
iii ~
W-.,$finu
H~R ~ ~ ~::.

ENGINE STOP SWITCH

TlI ~~
ECT SENSOR PAIR
liROUCI POINT
BLK
YEL
BLACK
YElLOlI!
IIAN
ORN
llAOWIi
ORANGE

-
SOLENOID BLU BLUE LTiILU UGHT BLUE
VALVE A eOn n...tIIic F.. Malar SMIdt GRIll GREEN LT-GRN UGHT GAEEN
• eOn EnplI. CoaIInt T........ SMIdt RED RED PH<
C eon &pit DiI*Il WHT WHITE GRY GRAY

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4-6

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 Hoses and Tubes Routing/Connection [~=:=J : A &. SE Only
j
NO.2 (PINK) TUBE

IATTHERMAL

VACUUM~=:J== __ IAT VACUUM ACTUATOR

NO.3 (PINK) TUBE \.11 ~

...
IAT CHECK VALVE ~ NO.4 (GRN) TUBE
CRANKCASE
~~~~L BREATHER TUBE A
AIR CLEANER II CRANKCASE BREATHER
CARBURETOR
HOUSING
DRAIN TUBE "~~
. ." II
STORAGE TANK
AIR JET
SOLENOID

~
.---" CRANKCASE VALVE
=A-

~
',

-11II
I BREATHER CARBURETOR
...........,.~ I TUBE B AIR JET
NO.3 (GRN) TUBE CRANKCASE BREATHER SOLENOID VALVE
STORAGE TANK DRAIN TUBE
NO.1 (PINK) TUBE - I NO. 19 (WHT) TUBE o.
1 • ~

ACCUMULATOR - , CARBURETORS O--...(('·:;:D::::--O-d-~~ ~~tr

y \'i NO. 20 (WHT)
'-::::::':Q.o:_~ TUBE
NO.4 (BLU) TUBE ~_, NO. 21 (WHT) TUBE

AUTO CRUISE NO. 22 (WHT) TUBE

CONTROL VALVE
UNIT SUB AIR CLEANER HOUSING

ENGINE
CONTROL NO. 1) (ORN) TUBE
MODULE

NO.1 (ORN) TUBE

NO. 12TUBE

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 Fuel System
Service Information (cont'd)

Hoses and Tubes Routing/Connection

California:
(Evaporative Emission [EVAPj Control System Hose Routing)

FUEL TRAY
DRAIN TUBE--
NO, 2 HOSE
EVAP CANISTER

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 Troubleshooting
Engine cranks but won't start " Float level too high
o No fuel in tank " Starting enrichment valve stuck open or damaged
~ No fuel to carburetor " Dirty air cleaner
o Engine flooded with fuel " Needle and seat faulty or worn
" No spark at plug (ignition system faulty - see o Faulty carburetor air jet control system (see page 4-50)
Section 16) " Faulty engine control module or loose or poor contact
" Air cleaner clogged of related connector terminals (see Section 16)
" Intake air leak
Engine idles roughly, stalls, or rlms poorly
@ Improper starting enrichment valve operation
" Air cleaner clogged
o Improper throttle operation
" Ignition malfunction (see Section 16)
" Incorrect choke cable free play
" Carburetors not synchronized
o Fuel tank vent blocked
" Fuel contaminated
After burning during deceleration " Intake air leak
o Ignition system faulty (see Section 16) " Idle speed incorrect
" Lean mixture " Rich mixture
o Faulty pulse secondary air injection system " Lean mixture
@ Faulty hoses of the emission control system " Low cylinder compression
" Incorrect pilot screw adjustment
Misfiring during acceleration o Starting enrichment valve stuck open
" Ignition malfunction (see Section 16) " Faulty hoses of the evaporative emission control
" Lean mixture system
" Faulty EVAP purge control valve (California model
Backfiring only)
o Ignition malfunction (see Section 16) " Faulty EVAP carburetor air vent control valve (Cali-
" Carburetor malfunction fornia model only)
" Lean mixture
Poor performance (driveability) and poor
Lean mixture: Insufficient fuel to fuel economy
cylinders " Fuel system clogged
" Clogged fuel jets " Air cleaner clogged
" Piston stuck closed .. Ignition malfunction (see Section 16)
" Faulty float valve " Faulty carburetor air jet control system (see page 4-50)
" Float level too low " Faulty intake air temperature system (see page 4-53)
" Fuel fill cap vent blocked " Faulty EVAP carburetor air vent control valve (Cali-
" Fuel strainer screen (fuel pump) or fuel filter fornia model only)
clogged " Faulty hoses of the evaporative emission control
" Restricted fuel line system (California model only)
" Intake air leak
Incorrect fast idle speed
" Restricted or faulty fuel pump
" Incorrect choke cable free play
" Faulty carburetor air jet control system
(see page 4-50) " Starting enrichment valve stuck
" Starter air line clogged
Rich mixture or hesitation " Starting enrichment valve not synchronized
" Clogged air jets
" Faulty float valve

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 Fuel System
Troubleshooting (cont'd) -~~----------

The fuel pump does not operate for a few seconds after the ignition switch has been
turned ON.
NOTE
@ Be sure that main fuse B and fuse 11 are good. Replace any suspect fuses.
--------

ENGINE STOP SWITCH: check that the

engine stop switch is turned to RUN. ,_,,~--+ @ The engine stop switch is on OFF position.

~ I ve~ "",,_-.•. :::t:h:n:~:::~:t:~:odule

@ Loose or poor contact of connectors.
The fuel pump operates poorly.
Loose or
CONNECTION: Check the BLK/BLU wire Poor
connector at the fuel pump for loose or
Connection
~._" ~ @ Loose or poor contact of connector.
poor contact.
,
--
Good Connection
~~~~~~

FUEL PUMP: Perform the fuel pump Good

@ Faulty engine control module.
operation test (see page 4-40).
".

Abnormal
"
WIRING/RELAY: Perform the engine con- Abnormal
I----~ .po @ Loose or poor contact of connectors.
trol module wiring check (see page 4-46).
~~'>..."."""'"
@ Open or short circuit in wire harness.
Good
"._ _ __
~ " w =

~ @ Faulty fuel pump.

Fuel indicator light does not come on within 3 minutes after the ignition switch
has been turned ON with less than 4.0 liters (1.1 gal) of fuel in the tank.
(A & SE models only.)
FUEL INDICATOR : Turn the ignition OTHER INDICATORS: With the same
Abnormal
switch ON and ch eck that the fuel indicator conditions as the previous step, the "R,"
light comes on for a few seconds, then "Cruise Set" and "Cruise On" indicators
goes off. should come on and go off.

"~~I
"''''''''''''''
''''''''''

Yes r;;,
".

Not .. Faulty LCD unit.

Burnt

r
FUEL RESERVE SENSOR: Inspect the fuel Out BULB: Check the fuel indicator bulb for
reserve sensor (see page 4-43). burn out.

Abno~m-a-I~---~I-G-O-o-d-J Burnt Out

.. FaUlty fuel .. Loose or poor contact of connectors. @ Fuel indicator bulb burnt out.
reserve sensor. @ Open or short circuit in wire harness.

4-10
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 The fuel gauge does not operate properly.

Not
COOLANT TEMPERATURE GAUGE: Make Operating
sure the coolant temperature gauge operates --,-,~ @Open circuit in BLK/BRN (I: BLK/BRN and
properly. BRNIWHT) or GRN/BLK lines.

'-"-y~~~~'--"--=
WIRING/CONNECTORS: Disconnect the
fuel level sensor 2P-BLK connector from
the connector holder behind the cruise
control valve unit. Turn the ignition switch
ON. Short the 2P-BLK connector terminals
No
with a jump wire. Fuel-gauge should read ---.,po@Looseorpoorcontactofconnectorsoropen
full. Open the 2P-BLK connector terminal. circuit in YELlWHT line.
Fuel gauge should read empty.
C~UTION ,,~_"'_"'_""' __,, _
@ Do not short the terminals for longer
than a few seconds, or the gauge will
be damaged.

Yes

Remove the fuel level sensor and check Good

~----po> @Damagedfloatorfloatarmofthelevelsensor.
the sensor for operation (see page 44).

Abnormal
iF""'--~----'----------""""

=-
FUEL LEVEL SENSOR: Check thEl le~vell I~A~b~n~o~r~m~a:!!I+.. Faulty fuel level sensor.
sensor for continuity (see page 4-44).

I Normal
- - - - , , - - - . p . B o .. Faulty fuel gauge.

4..11
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 Fuel stem
Troubleshooting (cont'd) --=
Intake Air Shot Air (IASA) System

NOTE
@ Check the following tubes for disconnection or deterioration before troubleshooting.
- No.1, No.4 (GRN), NO.1 (YEL), NO.2 (YEL), NO.5 (YEL), No. 11 (YEL).

rm===-.. . . . ...,."'.".=
.
Perform the system inspection (see page Normal
4-47).
.=] $I> " Faulty IASA check valve (see page 4-49).

Abnormal

IASA VALVE: Check the IASA valve for its Abnormal

F----., $I> " Faulty IASA valve.
operation (see page 4-48).

Normal
"'="""'~~~~~_~~~'O;
''''''''''''''''''''''''''''''
IASA CHECK VALVE: Check the IASA check Abnormal
" Faulty IASA check valve.
valve for its operation (see page 4-49).

! Normal

@ Clogged intake manifold vacuum pipe.

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 Carburetor Air Jet Control System
NOTE
@ Check the following tubes for disconnection or deterioration before troubleshooting.
- NO.18 (WHT), NO.19 (WHT), No. 20 (WHT), No. 21 (WHT), No. 22 (WHT), No.1 (ORN), No.3 (ORN), NO.4
(ORN), NO.5 (ORN).

Poor performance (driveability) and poor fuel economy.

Perfor~'th~ ca;b~'~et~r air jet control system '}.~~,~mal Ii>" Clogged carburetor jets and/or passages.
inspection (see page 4-50).
". "~-~'''' ~-------~ @ Faulty fuel pump (go to the fuel pump
operates poorly, page 4-10).
Abnormal " Faulty fuel line (see page 3-16).
@ Clogged sub air cleaner (see page 4-19).
@ Go to ignition system troubleshooting
(see Section 16).

WIRING: Remove the right fairing pocket (see

page 13-9). Disconnect the carburetor air jet
solenoid valve connectors and measure volt- No
age between BLKlLT GRN (+) terminals on .~,-"..,,""....~ " Loose or poor contact of connectors.
the wire harness side and ground H with the " Open or short circuit in wire harness.
ignition switch ON. Battery voltage should
register.

'~"~'~'~'=~1 Yes

[
CARBU-R"=E-T~O-R-A-IR-JE-T-S-O~l~E-N~O-ID - ] Abnormal..
VALVE: Check operation of carburetor air 0 Faulty carburetor air jet solenoid valves.
jet solenoid valves (see page 4-51).
~'~~"~T~:rmal ' . ,,~

iNTAKE AIR· TEMPERATURE SENSOR: J Abnormal ..

.U
Check operation of the intake air temperature 0 Faulty intake air temperature sensor.
sensor (see page 4-52).
"~"-rNormal ",-,,,,,

' ENGINE CONTROL MODULE: Perform the '" Abnormal

engine control module system inspection " Loose or poor contact of connectors.
[ (see page 4-46). Open or short circuit in wire harness.
@

"~"~-"'T Normal ' , .

D
'E;ch~nge the engine control module for a
good one and check engine condition again.
"J ____
Good m~ 0 Faulty engine control module.

-L,~;II Bad _ - ~"'~----I!i>

.~ Ii> @ Loose or poor contact of connectors.

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 Fuel System
Troubleshooting (cont'd) -~~~~--------------~

Intake Air Temperature (IAT) System and Accelerator Pump System

low temperature riding: poor performance (driveability) and poor fuel economy.

NOTE
.. Check the following tubes for disconnection or deterioration before troubleshooting.
- NO.1 (PNK), NO.2 (PNK) and NO.3 (PNK).

HOT AIR PIPE: Check the hot air pipe for Disconnection
disconnections of the hot air chamber (left ~---_.-~9> .. Disconnected hot air pipe.
exhaust pipe) and/or air cleaner duct.
I _ ~

t
IAT VACUUM ACTUATOR: Check IAT Abnormal
I-------~.. Faulty IAT vacuum actuator.
vacuum actuator operation (see page 4-53).

! Normal
" Faulty installation of IAT vacuum
actuator.

UM VALVE: Check the IAT I---_A_b...

n...
o...
rm_a_l_ll!I-" Faulty IAT thermal vacuum valve.
ermal vacuum valve

I I'lormal

IAT CHECK VALVE: Check the IAT check Abnormal

I-------~.. Faulty carburetor air jet solenoid valves.
valve operation (see page 4-54).

Normal

HOT AIR PIPE: Remove the hot air pipe Abnormal

(see page (4-55) and check the pipe for I-------~" Faulty hot air pipe.
damage or deterioration.

Normal
- - - - - - - - - - - - - - - - - + 9 > " Clogged intake manifold vacuum pipe.

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 Fuel Tank
Removal
Remove the fairing inner covers (page 13-12).
Disconnect the fuel line from the fuel pump.
Remove the auto cruise control valve unit and connector
holder from the fuel tank.
Remove the relay box from the frame.
Release the main wire harness from the clip.
Disconnect the fuel unit 2P-BLK connector of the con-
nector holder.
Disconnect the fuel drain tube from the fuel tray. RELAY BOX

Disconnect the fuel pump and reserve sensor (A & SE)

connectors from the fuel pump.
Remove the fuel tank mounting bolts.

Remove the following: FUEL FILL CAP

G rear wheel (see page 15-10).
G rear fender (see page 13-19).
@ fuel fill cap.
G fuel tray.

G Keep gasoline away from flames or sparks. Wipe

up spilled gasoline at once. Empty gasoline out
REAR
of the fuel tank into an approved gasoline con- FENDER
tainer, if necessary. TRAY
._ ------------
Remove the fuel tank out the rear of the frame.
Remove the fuel tank front rubbers.

FUEL TANK

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 goldwingdocs.com
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 Connect a vacuum pump as shown.
Apply the specified vacuum to the auto fuel valve.
Tool:
Vacuum Pump
ST-AH-260-MC7 (U.S.A. only)
Specified Vacuum: 200 mmHg (7.9 inHg)
Vacuum should be maintained.
If the vacuum is not held, replace the fuel valve.
VACUUM
Disconnect the fuel outlet line from the auto fuel valve. PUMP
Connect a suitable tube to the fuel valve outlet port and
hold a graduated beaker under the tube.

Short the BLKlWHT and BLK/BLU wire connector termi-

nals of engine control module (page 4-40/fuel pump
operation test).
Turn the ignition switch ON and the engine stop switch
RUN. The gasoline should not flow out.
Then, maintaining the above conditions, apply vacuum to
the auto fuel valve.
Vacuum should be maintained and the gasoline should
flow out smoothly.
Replace the fuel valve if necessary.

itJ
BL _
RUBBER STAY
" Gasoline is flammable and is explosive under
certain conditions. Do not smoke or allow
flames or sparks in your working area.
.- - - - -

Remove the seat and top compartment (see page 13-9).

Turn the ignition switch OFF.
Loosen the hose clamps at each end of the filter. Pull the
fuel lines off the fuel filter.
Remove the fuel filter from the rubber stay on the fuel
tank tray. Check the filter for clogging.
Replace the fuel filter with a new one, if necessary.
Install the fuel filter with its arrow pointing toward the
outlet side.
ARROW MARK
After installing, start the engine to initiate fuel flow, and TRAY
check for leaks.

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 Fuel System
Air Cleaner Housing ----~,,~~--~--"'-------

Removal
Remove the top compartment (see page 13-9).
Disconnect the No.2 (PNK) tube from the hot air vacuum
actuator.
Remove the clip and air duct.

NOTE
@ For hot air control diaphragm removal, see page
4-53.

Disconnect the intake air temperature sensor connector.

Remove seven screws and air cleaner housing cover.
Remove the air cleaner element. (For California models:
also remove the EVAP storage element).
NOTE
@ Do not drop anything into the carburetors.

Remove the two screws attaching the tube joint onto the
air cleaner housing.
Remove the six screws and remove the air cleaner
housing from the carburetor.
Disconnect the No. 3 (GRN), No. 4 (GRN) and No. 3
(PNK) tubes from the air cleaner housing.
Remove the O-rings from the carburetor.
NOTE
@ Cover the carburetor main bores with a shop towel to
prevent dropping anything into the carburetors.
@ For IAT thermal vacuum valve removal, see page O-RING
4-53.
TUBE JOINT

Installation
Install the air cleaner housing in the reverse order of
removal.
NOTE
@ Connect the related hoses to the air hose set plate as
shown.

Disconnect the choke linkage sub rod from the starting

enrichment (SE) valve arm.

4=18

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 Sub Air Clea.ner Housing
Remove the right fairing inner cover (see page 13-12). HOU~G jCOLLAR BOLT

Disconnect the No. 22 (WHT) tube from the sub air ,~ / NO. 22 (WHT)
cleaner housing. ~ TUBE

Remove the bolt and collar and remove the sub air ELIEMIENT. ..:....
,~
0. ~ /

cleaner housing from the frame. ~

Open the housing cover and remove the sub air cleaner
element.

Wash the element in non-flammable or high flash point

solvent, squeeze out the solvent thoroughly, and allow
the element to dry.
Soak the element in Honda Foam Filter Oil or equivalent,
or in gear oil (SAE #80-90) and squeeze out the excess.
Install the sub air cleaner housing in the reverse order of
removal.
WASH IN SQUEEZE OUT PRO HONDA SQUEEZE OUT
SOLVENT SOLVENT FOAM FILTER EXCESS OIL
AND ALLOW OILOR
TO DRY CLEAN SAE 30
THOROUGHLY GEAR OIL

Carburetor Removal -->~~~~-----~----~

Drain the coolant (see page 5-8).
Remove the folloWing:
" fairing inner covers (see page 13-12).
" air cleaner housing (see page 4-18).
Loosen the carburetor insulator band screws (upper side,
near carburetor) and remove the carburetors from insula-
tors.

Disconnect the fuel line from the 3-way joint. FUEL LINE

" Keep gasoline away from flames or sparks. Wipe

up spilled gasoline at once.

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 Fuel System
Carburetor Removal (ccmt'd)-~~'''---~- ---------~

Disconnect the throttle cables from the throttle drum.

Disconnect the air vent tube and carburetor drain tube at
each 3-way joint.
Disconnect the NO.5 and No. 11 tubes from the carbure-
tor (California model only).

Disconnect the No. 18 (WHT) and No. 19 (WHT) tube at ACTUATOR CABLE
NO. 19 (WHT) TUBE
the 3-way joint.
Disconnect the NO.1 (PINK) tube from the carburetor.
4· NO. 18 (WHT) TUBE

A & SE: Disconnect the auto cruise actuator cable from

the throttle drum.

, I

NO.1 (PINK) - - - '

TUBE

Loosen the choke cable holder screw and disconnect the

choke cable.

Disconnect the coolant hoses from the carburetor heat

riser. Remove carburetor assembly.

NOTE
@ Place a suitable container under the carburetor to
catch residual coolant from the carburetor heat riser.
@ Cover the intake manifold bores with a shop towel to
prevent dropping anything into the engine .
. _---
After removal, drain fuel out of the float chambers into a
suitable container by loosening drain screws.
For intake manifold service, see page 4-37.

@ Keep gasoline away from flames or sparks. wipe

up spilled gasoline at once.
" " " ' = _ " ' = "_ _...., , . _ C < , , " _ " ' - ~-._"""_""'_"''''' '''',,'''_ _

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 Remove four screws and carburetor heat riser. SCREWS
Loosen but do not remove the four airhorn screws.

AIRHORN

Remove the cotter pin, washers, and collar from the

CODER PIN,
choke linkage sub rod at each carburetor. WASHERS AND COLLAR
(EACH SIDE)
Disconnect the choke intake sub rod from the starting
enrichment (SE) valve arm.

Remove the cotter pin, washers, collar, and spring from

the accelerator rod.
Disconnect the accelerator rod from the accelerator
pump arm.

Remove the cotter pin, washer, and plastic washers from

the throttle linkage of the right carburetor.
Disconnect the throttle linkage from the carburetor.
Loosen the adjusting screw and remove the synchroniza-
tion spring.

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 Fuel System
Carburetor Separation (cont'd) -"'''''--~~~------~-----~

Remove four screws and the carbuetor airhorn assembly.

SCREWS

Disconnect the fuel lines from each carburetor.

FUEL PIPE
Remove the accelerator pump fuel pipe.
Check the fuel pipe's O-rings for damage or fatigue.

FUEL LINES

Use compressed air to clean the accelerator pump fuel

passages of the airhorn assembly. AIRHORN ASSEMBLY

Use compressed air to clean the passages of the carbu-

retor heat riser.

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 Carburetor Disassembly -,,~'"
Accelerator Pump
NOTE ",-,==,.<~~" =----
@ The accelerator pump can be serviced with the
carburetors assembled.

Remove two screws and accelerator pump assembly

from the right carburetor float chamber.
Remove the a-ring and check it for fatigue or damage.
ACCELERATOR~
PUMP

Remove three screws and the pump cover.

Remove the spring and diaphragm valve.

Check the diaphragm rod cover for fatigue or damage.

DIAPHRAGM
Check the spring for damage. ROD COVER VALVE

Check the diaphragm valve for pin holes or deterioration.

/ /
SPRING

Use compressed air to clean the fuel passages of the

pump cover and case.
FUEL
PASSAGES

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 Fuel stem
Carburetor Disassembly (cont'd) -,,~~~~~~~-~~~~~~~-

Vacuum Chamber VACUUM CHAMBER

COVER
NOTE
e The vacuum chamber can be serviced with the
carburetors assembled.

Remove the screws and vacuum chamber cover.

SCREWS

CAUTION
o Do not interchange the vacuum chamber cOV m

ers, springs, pistons or jet needles between

carburetors.

Remove the compression spring and diaphragm/vacuum

piston. SPRING

Make sure the piston moves up and down freely in the

chamber.
PISTON

Push the jet needle holder down and turn it counterclock-

wise 90 degrees with an 8 mm socket. Then remove the
needle holder, spring, spring holder, jet needle and
washer from the vacuum piston. SPRING
HOLDER
Inspect the vacuum piston for wear, nicks, or other
damage.
Inspect the jet needle for excessive wear at the tip or
other damage.
JET NEEDLE
Inspect the diaphragm for pin holes or deterioration.
NEEDLE
HOLDER

float Chamber
NOTE
" The float chamber must be serviced with the carbure-
tors disassembled.

Remove the float chamber body.

Check the a-ring for fatigue or damage.

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 Pullout the float arm pin.
Remove the float and float valve.
FLOAT ARM PIN
Inspect the float for deformation or damage.

FLOAT
VALVE

Inspect the float valve for grooves and nicks.

Inspect the operation of the float valve.

Remove the float valve seat from the carburetor body.

Clean the strainer with clean solvent.
Make sure the sealing washer is in good condition. SEALING
WASHER - .~

Remove the main jet, main jet holder, and slow jet from
the carburetor body. MAIN
JET
HOLDER
SLOW JET

@ Do not try to remove the needle jet from the car m

buretor body. The needle jet is pressed into the

body.

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 Fuel System
Carburetor Assembly - - - - - - - - - - =
NOTE
------"'-"'~""
e The SE valve can be serviced with the carburetors
assembled.

Remove the nut and washer.

Loosen the starting enrichment (SE) valve nut.
Remove the SE valve with starter arm and spring.
SPRING

Check the SE valve, valve needle, and valve seat for

wear or damage.
SPRING
Check the valve spring for wear or damage.

NEEDLE

Carburetor Cleaning
Use compressed air to clean all the carburetor jets and
passages.
CAUTION
@ Never use wire or drill bits to clean carburetor
jets. The jets will become enlarged or scratched,
disturbing the correct mixture ratio.

Pilot Screw
NOTE
m The pilot screws are factory pre-set and should not be
removed unless the carburetors are overhauled.

Turn each pilot screw in and carefully count the number of

a-RING
turns before it seats lightly. Make a note of this to use as a
reference when reinstalling the pilot screws.

CAUTiON n.----WASHER

m Damage to the pilot screw seat will occur if the

pilot screw is tightened against the seat.
PILOT
Remove the pilot screws and inspect them. Replace SCREW
them if they are worn or damaged.

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 Reassembly is the reverse of disassembly.

CAUTION
o Do not overtighten the main jet holder and float valve seat. Damage to the carburetor will result
-- -

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 Fuel System
Carburetor Assembly (ccmt'd) - - - - - - - - - - - - - - - - -

Pilot Screw
Install the pilot screws and turn them to their original posi-
tion as noted during removal.
If new pilot screws are installed, turn the pilot screws out
to the initial opening (see page 4-39).
----SPRING

Damage to the pilot screw seat will occur if the

PILOT J~
e
SCREW~
pilot screw is tightened against the seat. WASHER

Perform a pilot screw adjustment (see page 4-39) if new

pilot screws are installed.

NOTE
-""~.~.~-_._-""'----~,,---,--"""----

e If you replace the pilot screw in one carburetor, you

must replace the pilot screws in the other carburetor
for proper pilot screw adjustment.

Starting Enrich~nent (SE) Valve

Install the SE valve, spring, and valve nut, but do not
tighten the nut.
Install the starter arm with the spring, aligning the arm
with the valve groove as shown.
Install the washer and nut onto the starter arrn.

Tighten the SE valve nut and starter arm nut securely.

Apply grease to the valve-to-arm groove.

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 Float Chamber
MAIN
Install the main jet holder, main jet, and slow jet onto the JET
carburetor body. HOLDER
SLOW JET

Install the fuel strainer on the float valve.

Install the float valve with the sealing washer onto the
carburetor body.
STRAINER

Install the float valve into the valve seat.

Install the float and float arm pin.

Float level Inspection

With the float valve seated and the float arm just touching
the valve, measure the float level with the float level
gauge.
Tool:
Float level gauge
07401-0010000
Adjust if necessary by bending the float arm carefully.
Float level: 8mm (0.3 in)
FLOAT LEVEL GAUGE

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 Fuel System
Carburetor Assembly (cont'd)

Install a new a-ring and float chamber.

FLOAT
CHAMBER

Vacuum Chamber VACUUM PISTON

Install the washer, jet needle, spring holder, spring and jet
needle holder to the vacuum piston. SPRING
HOLDER
Push the jet needle holder in and turn it in 90 degrees
clockwise.

JET
NEEDLE
:I
JET NEEDLE HOLDER

Install the vacuum chamber with the tab of the diaphragm

aligned with the groove of the carburetor and with the
vacuum piston held up to almost full open to prevent
pinching the diaphragm between the chamber cover and
the carburetor body.
Install the chamber cover with the spring, aligning its
cavity with the hole in the carburetor. Secure at least two
screws before releasing the vacuum piston.

Install the remaining screws of the vacuum chamber

cover. CLAMPS

NOTE
,~-----------------
~
@ Do not pinch the diaphragm with the chamber cover.
@ Install tube clamps as shown on pages 4-34 and 4-35.

4-30
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 Accelerator Pump
SPRING PUMP COVEP
Install the diaphragm valve, rod cover, spring, and pump
cover on the pump case.
Tighten the cover screws securely.

Install a new O-ring on the float chamber.

Install the accelerator pump onto the chamber.
Tighten the screws securely.

Assembly
Install new O-rings onto the fuel pipe.
Install the pipe on the accelerator pump.

Install the fuel lines as shown. Clip them securely. CLIPS

FUEL. LINES

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 Fuel System
Carburetor Assembly (ccmt'd) - - , - - , ' ' , , , , , , , , . - - - - - -

Install the carburetor airhom and screws, but do not

SCREWS
tighten the screws.

Install the washers and collar as shown.

~ROD
Insert the choke linkage sub rod into the starting enrich-
ment valve. ====u COLLAR

Install a new cotter pin (each sub rod). ®I

/w
WASHER ~

~:
4
/~
f COTTER
PIN

Install the washer, spring, collar, accelerator pump arm, ConER

washer, and a new cotter pin on the accelerator rod. PIN
~~WASHER
®
ARM--~
I~COLLAR
,
-.'SPRING

WASHER

Install the plastic washers, washer, and a new cotter pin

on the throttle linkage of the right carburetor. c£; LINKAGE

I~
Apply grease to the synchronization adjusting screw end.
Install the synchronization spring.

yr
,r/ @ WASHER

, PLASTIC \
GREASE WASHERS COTTER PIN

4-32
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 Install the carburetor heat riser and tighten the screws CARBURETOR
securely. HEAT RISER

SCREWS

TIghten the carburetor airhorn screws securely.

SCREWS
Install new O-rings on the airhorn grooves.

Check that the choke linkage operates smoothly.

Check that the throttle linkage operates smoothly.

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 Fuel stem
Carburetor TubesIHoses
NOTE
.. Be careful not to bend, twist or kink the tubes during
installation.
.. Install new tubes if the current tubes are deteriorated
or damaged.
.. Slide the end of each tube fully onto its fitting. Secure
with a tube clamp.
.. After installing the carburetors on the engine, check
that the tubes do not contact sharp edges or corners.

AIR VENT TUBE

CARBURETOR DRAIN TUBE

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 Output Shaft
California: " . ~~
NOTE . -_._~~
" Refer to 49-State Mode I for identification of tubes not
shown.

CLAMP

•
TO EVAP PURGE CONTROL VALVE

TO EVAP CAV CONTROL VALVE --rr-~

'/

/ CAJUUJRETOR
NO.6 HOSE DRAIN TUEiE

4..35
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 Fuel System
Carburetor Installation
If the carburetor insulator was removed, install the insula-
tor onto the intake manifold, aligning the insulator groove
with the manifold rib.
Secure the screw on the manifold side.
Torque: S N-m «lS kg-m, 3.6 fl:-lb)

Connect the water hoses to the carburetor heat riser.

NOTE
.. Connect the "J" marked hose (with yellow tape) to the
left pipe (with yellow paint); the "D" marked hose to
the right pipe.
.. Take care to avoid pinching or kinking the hoses.

Secure the hoses with clamps.

Connect the choke cable to the choke linkage. Align the LINKAGE
end of the cable outer housing with the edge of the cable
holder.
lighten the cable holder screw securely.
Make sure that the choke linkage end does not contact
the cable outer housing when the choke lever is fully
open.

! CHOKE CABLE
SCREW
/

A & SE: Connect the auto cruise actuator cable. Connect

the NO.1 (PINK) tube to the carburetor. Connect the No. NO. 19 (WHTI TUBE

18 (WHT) and No. 19 (WHT) tubes. ACTUATOR CABLE <c~ ,/'WHTl TUBE

i
I
NO.1 (PINlq ~ . /
TUBE

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 Connect the No. 5 and No. 11 tubes to the carburetor
(California model only).
Connect the carburetor drain tube and air vent tube to
each 3-way joint.
Connect the throttle cables to the throttle drum.

AIR VENT TUBE

Connect the fuel line to the 3-way joint.

Install the carburetor onto the insulators and secure the
screws to the specified torque.
Torque: 5 f\lmm (0.5 kg-m, 3.6 ft-Ib)

' '"'
INSULATOR SCREW

Intake Manifold
Removall
Remove the following:
® air cleaner housing (see page 4-18).
.. carburetors (see page 4-19) .
.. heat guard.
.. insulators.
" pulse secondary air injection (PAIR) control valve (see
page 4-56). NO.1 ./
lORN) / '
Disconnect the vacuum tubes from intake manifolds. No. tUBE
11: (YEL), NO.1: (GRN), NO.1: (ORN), NO.3: (ORN). NO. 3 (ORN)
TUBE '-~
WATER
Disconnect water hoses C and E from intake manifold HOSEC
riser pipes.

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 Fuel System
Intake Manifold (cont'd)
Disconnect the engine coolant temperature (ECT)
sensor connector and water hose H from the right intake
manifold.
Remove six bolts, the right intake manifold and gasket.

)-
/

~~~-GASKET
Disconnect the vacuum tube (No.1, No. 6 GRN) and
water hose H from the left intake manifold.
Remove the six bolts, left intake manifold and gasket.

NO.1 TUBE

Install the intake manifolds in the reverse order of

removal.

NOTE
"''''''~''''~'''''-'''' ,~--~--
" "L" marked manifold to the left side; "R" marked to the
right.
" For all vacuum tubes connection and routing, refer to
the hose and tubes routing/connection (see page 4-7).

Install the carburetor insulator onto the intake manifolds,

aligning the insulator groove with the manifold ribs.
Secure the screws on the manifold side.
Torque: 5 N~m (0.5 kgm, 3.6 it-Ill)

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 Pilot Screw Adjustment
Idle Drop Procedure PILOT SCREWS
NOTE
e The pilot screws are factory pre~set and no adjust~
ment is necessary unless the pilot screws are
replaced.
e Use a tachometer with graduations of 50 rpm or
smaller that will accurately indicate a 50 rpm change
(E.S.1. model #320 - TIN E.S.1. No. 320).
e Use an electric fan to cool the engine.

1. Turn each pilot screw clockwise until it seats lightly

and back it out to the specification given. This is an
initial setting prior to the final pilot screw adjustment.

CAUTION PILOT SCREW WRENCH

" Damage to the pilot screw seat will occur if the
pilot screw is tightened against the seat.

Initial opening: :2 turns out

Tool:
Pilot screw wrench
07LMA~MT801 OA

2. Warm the engine to operating temperature. Stop~

and~go riding for 10 minutes is sufficient.

3. Attach a tachometer according to the manufac~

turer's instructions.
4. Adjust the idle speed with the throttle stop screw.
5. Turn both pilot screws 1/2 turn out from the initial set-
ting.
6. If the engine speed increases by 50 rpm or more,
continue turning both pilot screws 1/2 turn out from
the previous setting until engine speed drops by
50 rpm or less.
7. Adjust the idle speed with the throttle stop screw.
8. Turn the left carburetor pilot screw in until the engine
speed drops 50 rprn.
9. Turn the left carburetor pilot screw 1 turn out from
the position obtained in step 8.
10. Adjust the idle speed with the throttle stop screw.
11. Perform steps 8, 9, and 10 for the right carburetor
pilot screw.

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 Fuel System
Fuel Pump .~.-----~
Fuel Pump Operation Test ENGINE CONTROL MODULE

Remove the right fairing inner cover (see page 13-12).

Turn the ignition switch OFF.
Disconnect the engine control module connector.
Short the BLKlWHT and BLK/BLU wire connector termi-
nals with a jumper wire.

BLK/BLU
~-BLK/WHT

Disconnect the fuel pump outlet line at the fuel filter. Hold
a graduated beaker under the tube.

" Keep gasoline away from flames or sparks. Wipe

up spilled gasoline at once.

Turn the ignition switch ON, let fuel flow into the beaker
for 5 seconds, then turn the ignition switch off.
Multiply the amount in the beaker by 12 to determine the
fuel pump flow capacity per minute.
Fuel Pump Minimum Flow: 640 cc (21.6 oz)/minute

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 Fuel Pump Removal
t!IIIIL _
" Keep gasoline away from fiames or sparks. Wipe
up spilled gasoline at once.

Disconnect the fuel outlet line and connectors. Remove

the fuel pump mounting nuts.

NOTE
" Disconnect the BLK/BLU and WHT/BLU wire con-
nectors, pushing the "PUSH" marked tabs.

Disconnect the air hose and remove the fuel pump

assembly from the fuel tank.

Release the terminal caps from the fuel pump wire

terminals.
Remove the screws and pump wires.
Disconnect the air and fuel hoses from the pump.
Remove the pump pinch screw and fuel pump.

Fuel Pump Disassembly/Assembly

Release claws from projections and remove the rear
cover.
Remove the rear cover a-ring.
Remove the motor from the fuel filter/valve unit.
Assemble the fuel pump in the reverse order of removal.

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 Fuel System
Fuel Pump (cont'd)

fuel Pump Installation

Install the fuel pump and tighten the screw securely.
Connect the air and fuel hoses to the fuel pump.
Install the clamps securely.
Route the pump wires properly. Secure the screws.
Install the terminal caps.

Install the fuel pump into the fuel tank, connecting the air
hose to the air pipe inside the tank.

Position the wire clamp over the stud as shown and

tighten the nuts securely.
Connect the fuel pump connectors and reserve-sensor
connector to the pump terminals.
NOTE
" Connect the BLK/BLU and WHT/BLU wire connec-
tors with "PUSH" marks facing up.

Clamp the wires securely.

Connect the fuel outlet line.

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 Fuel Reserve Sensorllndicator (A & SE only) -_.~.~---------

Sensor Removalllnstallation
Remove the fuel pump (see page 4-41).
Remove three screws and fuel reserve sensor from the
pump stay.
Install the fuel reserve sensor in the reverse order of
removal.
NOTE
@ Apply a locking agent to the screw threads of the
reserve sensor. FUEL
RESERVE SENSOR

Sensor Inspection

@ Keep gasoline away from flames 01' sparks. Wipe

up spined gasoline at once.

Remove the fuel reserve sensor.

Measure resistance between the WHT/BLU wire terminal
(white-colored wire) and ground as shown.
Standard: 0.9~1.3 k Ohms (250 CI 17 F).
0
0

Indicator Inspection
WHT/BW WIRE
Place the motorcycle on its center stand. CONNECTOR

The fuel indicator light should come on within three

minutes after the ignition switch has been turned ON with
less than 4.0 liters (1.1 gal) of fuel in the tank. The fuel
indicator light should also come on for a few seconds,
then go off.
Remove the seat (see page 13-8).
Disconnect the WHT/BLU wire connector, pushing the
"Push" marked tab.
Ground the WHT/BLU wire with a jump wire. The fuel
indicator light should come on.
If the light does not go on, check for a short/open circuit in
the WHT/BLU wire harness line or connector.

><1000,.pm

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 Fuel System
Fuel Level Sensor Removal
Fuel level Sensor Removal

@ Keep gasoline away from flames or sparks. Wipe

up spilled gasoline at once.
-_ ....~--,,-_._---_.,,-----

A & SE: Remove the auto cruise control valve unit.

Disconnect the level sensor 2P-BLK connector from the FUEl
connector holder. LEVEL
SENSOR
Remove four nuts, the level sensor, and a-ring from the
fuel tank.

Operation Test
Reconnect the sensor wires to the fuel level sensor.
Turn the ignition on and inspect the fuel gauge operation
by moving the float arm.
Float at bottom: Gauge should read empty.
Float at top: Gauge should read full.

NOTE
@ Do not bend the float arm.
@ Allow plenty of time for the gauge to respond.

Float level Sensor Inspection

Check the resistance of the fuel level sensor with an ohm-
meter.
Float at top: 4-10 Ohms (200°C/68°F)
Float at bottom: 90-100 Ohms (200°C/68°F)

NOTE
~----,,--_._""---_ .... ---_.--,,-
@ Check the resistance at the top of travel first, then
move the float arm to the bottom position.

Fuel level Sensor Installation

Apply oil to the a-ring.
Install the fuel level sensor with a-ring in the fuel tank and
secure with four nuts.
Install the remaining parts in the reverse order of
removal.

NOTE
- - _.. _---~_ .. _----------
" Do not bend the float arm.
" Set the a-ring securely into its groove.

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 INTAKE AIR ENGINE COOLANT
TEMPERATURE TEMPERATURE
SENSOR SENSOR

_ . '-T~'AR
ENGINE STOP SWITCH

R POSITION SWITCH
: Neutral, 2nd, 3rd, 4th, OD

MAIN FUSE B
(55A)
RELAYS

+'e,~ IGNITION
SWITCH
BATTERY
MAIN FUSE A FUSE 12
(3M) (SA) FUEL PUMP
SHUT·OFF
(BANK
IGNITION PULSE ANGLE)
GENERATOR -= SENSOR

IASA
VALVE

CARBURETOR
AIR JET
SOLENOID
PULSE VALVE
SECONDARY
SOLENOID
VALVE PULSE SECONDARY
AIR INJECTION
CONTROL VALVE

-'
ESE -'--~1---- '"
L "'~~~ D -
IASA CHECK VALVE

ro~ ~ SECONDARY
-'"&~
!
-- I AIR INJECTION
CHECK VALVE

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 Fuel System
Engine Control Module
System Inspection
ENGINE CONTROl. MODULE
Remove the right fairing inner cover (see page 13-12).
Disconnect the engine control module connector.

Check it for loose contact or corroded terminals.

Measure the following between the connector terminals
on the wire harness side:

NOTE
e Inspect according to the following conditions:
Condition 1: Engine stop switch on RUN
2: Engine switch in ON
3: At all times

LINE TERMINALS CONDITION(S) SPECIFICATION

"'''''''
_.
Battery voltage/input BlKIWHT (+) and ground (-) 1,2 Battery voltage should register
.~ ."-,,,w. ..
,

Carburetor air jet solenoid REDIWHT (+) and ground (-) 2

valve
""'" ..
Carburetor air jet solenoid RED (+) and ground (-) 2
valve
.. """"" ,"'",,=,

PAIR solenoid valve BlK/RED (+) and ground (-) 3

Intake air temperature sensor GRY and GRN/BlK 3 2.0-3.0 k ohms (20°C/68°F)
""'"

Engine coolant temperature PNKlWHT and GRN/BlK 3 2.0-3.0 k ohms (20°C/68°F)

sensor
,..,="""""w.,,,,,,,=,

Fuel pump BlK/BlU and ground 3 Approx. 6 ohms

"""'''''' -
Ground GRN and ground 3 CONTINUITY should exist

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 Intake Air Shot Air (IASA) System
System Inspection
Remove the left fairing inner cover (see page 13-12). NO.3 (GRill) TUBE

NO.4 (GRN)
Remove the air cleaner housing (page 4-18). TUISE

Clamp the NO.6 (GRN) tube at the PAIR solenoid valve.

Connect a vacuum pump to the No. 3 (GRN) tube and
apply the specified vacuum.
Specified Vacuum: 200 mmHg (7.9 inHg)
Start the engine in neutral and make sure that air is not
drawn in through NO.4 (GRN) tube while applying the
specified vacuum to the No.3 (GRN) tube.
With the engine started and with the specified vacuum
applied open the throttle above 2,000 rpm; then close the
throttle quickly. Air should be sucked in through the No.4
(GRN) tube.

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 Fuel System
Intake Air Shot Air (IASA) System (cent'd)

Intake Air Shot Air (IASA) Valve Inspection

IASAVALVE
Remove the left cooling fan (page 5-11). "

Remove the screws and disconnect the air tubes from the
IASA valve.
Remove the IASA valve.

Connect a vacuum pump as shown.

Tool:
Vacuum pump
ST-AH-260-MC7
Apply the specified vacuum to the valve. 500 mmHg
(19.7 inHg) vacuum should be maintained.
Do not apply more than 560 mmHg (22.0 inHg) vacuum.
Replace the valve if necessary.
Connect a vacuum pump and pressure pump as shown. VACUUM
PUMP
Tool:
Pressure pump
ST-AH-255-MC7
Apply light pressure (approximately 5 psi).
Apply the specified vacuum. The valve should open and
the pressure should be released.
Specified Vacuum: 110-160 mmH~ (4.3-6.3 inH~)

NOTE
@ Vacuum should not hold.
s Route the tubes properly (page 4-7) and check the
tubes for loose or poor connections.
o Coat the valve pipes with soapy water before
connecting tubes.

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 IASA Check Valve Inspection
NO. 11 {YIELI
Remove the carburetor (page 4-19).
Disconnect the air tubes and remove the IASA check
valve.

Connect a vacuum pump as shown.

Tool:
Vacuum pump
ST-AH-260-MC7
Apply the specified vacuum to the valve.
Specified Vacuum: 40 mmHg (1.6 inHg)
Vacuum should hold.
Replace the valve if vacuum does not hold.

Connect a vacuum pump as shown.

~
Apply vacuum. It should not hold. ~. IASA. CHECK
~VAlVE

NOTE -------- _ _ __ _ _-_.-

.. ... .. .. .. VACUUM - . ~~--­
o Do this check for both valves as shown. PUMP ~~~--~-->,

Replace the valve if vacuum holds.

Install the valve in the reverse order of removal.
_\ .
-----~--~=~::::~::::~= =~
:!'I
I

. ,,
,
"
I

@ Coat the valve pipes with oil when connecting the

tubes.

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 Fuel System
Carburetor Air Jet (CAJ) Control System
System Inspection
Remove the right faring inner cover (see page 13-12).
Shift the transmission into neutral. Start the engine and
warm it up to normal operating temperature.
Stop the engine. CAJ
SOLENOID
VALVE
NOTE
CAJ
.. This test must be performed with the engine coolant SOLENOID
VALVE
temperature above 60°C (140° F) and the surround-
ing temperature above 20°C (68°F).

Disconnect the No. 18 (WHT), No. 19 (WHT), No. 20

(WHT), and No. 21 (WHT) tubes from both carburetor air
jet (CAJ) solenoids.
Connect vacuum pumps to the CAJ solenoid valves as
shown.

NOTE
.. "Open" and "Closed" in the table below mean:
"Open":
Vacuum should not be maintained when it is
applied to the solenoid.
"Closed":
Vacuum should be maintained when it is applied
to the solenoid.
Specified Vacuum: 200 mmHg (7.9 inHg)
Tool:
Vacuum pump ST-AH-260-MC7 (U.S.A. only)

Disconnect the vacuum tube that goes from the engine

control module to the 3-way joint.
Remove the plug from the dead end tube, and connect
the tube to the 3-way joint as shown.

NOTE
...;.,;;;;,....;;.;."""".------_ ._......._._---_.
.....-...__
" Do not lose the plug.

Connect a vacuum pump to the engine control module

vacuum tube.
Tool:
Vacuum pump
ST-AH-260-MC7 (U.S.A. only)
Start the engine and allow it to run at specified rpm shown
in the table. The following results should be obtained as
the specified vacuum is applied.

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 "",-_.,,-
SPECIFIED VACUUM
ENGINE VALVE APPLIED
RPM NUMBER
--
OmmHg 200 mmHg
(0 inHg) (7.9 inHg)
---"~
2 Valve is Closed
Idle Speed "Closed"
800 rpm "

3 Closed Closed
--
". "'._,,"'-
2 Open* Closed
2,000 rpm
=='''---''
3 Closed Closed
'"

* 0 mmHg (0 inHg) in the table is for standard sea level

atmospheric pressure of 760 mmHg (29.9 inHg).
Therefore, the test result may be different in the area
where the altitude is higher than 300 m (1,000 feet)
because of the atmospheric pressure.
Disconnect the gear position switch 6P-BLK connector of
the connector holder on the right cooling fan. Ground the
BLKNEL wire of the wire harness side connector.
Start the engine and allow it to run at the specified rpm
shown in the table below. The following results should be
obtained as the specified vacuum is applied.
"
SPECifiED VACUUM
-- 6P-IBLK
CONNECTOR
ENGINE VALVE APPLIED
.",._. " .-
RPM NUMBER OmmHg 200 mmHg 6P-BlK CONNECTOR
"._. __ .
2
(0 inHg)
Valve is
(7.9 inHg)
Closed
Idle Speed "Closed"
800 rpm
3 Closed Closed
2 Open* Closed
2,000 rpm

1
BlK/YEL
......... .. 3 Closed Closed
"

l-
* 0 mmHg (0 inHg) in the table is for standard sea level
atmospheric pressure of 760 mmHg (29.9 inHg).
Therefore, the test result may be different in the area
G::.
POSITION
SWITCH
where the altitude is higher than 300 m (1,000 feet)
because of the atmospheric pressure.

Carburetor Air Jet (CAJ) Solenoid Valve

CAJ
Inspection SOLENOiD
VALVE
Remove the fairing right pocket.
Disconnect the air tubes, 2P-GRN connector, and
2P-RED connector.
Remove the carburetor air jet solenoid valves.

1\10. 19 (WHiTI

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 Fuel System
Carburetor Air Jet (CAJ) Contro~ System (cont'd)

Connect a vacuum pump as shown. CAJ SOLENOID VALVE

Tool:
Vacuum pump
ST-AH-260-MC7
Apply the specified vacuum to the CAJ valve. Vacuum
should hold.
Specified Vacuum: 400 mmHg (15.7 inHg)
Replace the valve if vacuum does not hold.

Connect a vacuum pump to the valve as shown. Apply

the specified vacuum to the valve.
Specified Vacuum: 200 mmHg (7.9 inHg)
Connect a 12V battery to the valve wires. Vacuum should
be released. Replace the valve if vacuum remains steady.
Install the valve in the reverse order of removal.
NOTE
@ Route the tubes properly (page 4-7) and check the
tube for loose or poor connections.

Intake Air Temperature (IAT) sensor

Inspection
Remove the air cleaner housing cover (see page 4-18).
Remove the IAT sensor from the air cleaner housing
cover by removing the nut.
Disconnect the 2P-GRN connector from the IAT sensor.
Suspend the sensor in cold water. Heat the water slowly.
Measure resistance between terminals.
Standards:
2.0-3.0 K ohms at 20°C (68°1=)
200-400 ohms at BO°C (176°1=)
NOTE
-~.~~~-~~._._--------_.

" If the sensor or thermometer touches the pan, false

readings will result.
e Keep water off the sensor terminals.

If resistance is outside the above ranges, replace the IAT

sensor.
171
Set the connector stopper ring into the groove of the
~=p@
2P-GRN connector and connect the connector to the IAT
sensor properly. Install the IAT sensor in the reverse IAT SENSOR
order of removal.

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 Intake Air Temperature (IAT) System
Intake Air Temperature (IAT) Vacuum
IATVACUUI\Ii
Actuator Inspection ACTUATOR

Remove the air duct (see page 4-18). ~

Connect a vacuum pump to the IAT vacuum actuator and
apply the specified vacuum.
Specified Vacuum: 200 mmHg (7.9 inHg)
Tool:
Vacuum pump VACUUM DUCT
PUMP VALVE
ST-AH-260-MC7
The vacuum should hold and the duct valve should
remain raised.
Replace the IAT vacuum actuator if it doesn't pass this
test.
Turn the IAT vacuum actuator counterclockwise and
disconnect the diaphragm shaft from the duct valve.
Remove the IAT vacuum actuator from the duct.
Install the IAT vacuum actuator in the reverse order of
removal.

o Install the IAT vacuum actuator with its vacuum pipe

direction as shown.

IAT Thermal Vacuum Valve Inspection

Remove the air cleaner housing (see page 4-18).
Remove the screw and IAT thermal vacuum valve from
the air cleaner case.
Connect a vacuum pump to the hot air control valve.
Suspend the valve in cold water. Heat the water slowly,
applying vacuum to the valve.
Tool:
Vacuum pump
ST-AH-260-MC7
Specified Vacuum: 220 mmHg (8.7 inHg)
The following results are normal:
Below 11°C (52°F): The vacuum should hold.
Above 16°C (61°F): The vacuum should not hold.
NOTE
-_.~--_.,,------

" If the valve or thermometer touches the pan, false

readings will result. VACUUM
-----------",,"'-- PUMP
IATTHERI\IiAL
Install the IAT vacuum actuator valve in the reverse order VACUUM VALVE
of removal.

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 Fuel System
Intake Air Temperature (IAT) System (cont'd)

IAT Check Valve Inspection _.======-~

Remove the air duct (see page 4-18).
NO.2 (PNK)
Remove the IAT check valve from the NO.1 (PNK), NO.2
(PNK), and NO.3 (PNK) air tubes.

"'"
NO.1 (PNK) NO.3 (PNK)

Connect a vacuum pump to the NO.2 (PNK) port of valve IAT

VACUUM CHECK
as shown. Plug the NO.3 (PNK) port. PUMP VALVE
Tool:
Vacuum pump
ST-AH-260-MC7
Apply the specified vacuum. Vacuum should hold.
Specified Vacuum: 40 mmHg (1.6 inHg)
Then, connect a vacuum pump to the NO.1 (PNK) port as
shown. Apply vacuum.
IAT
Vacuum should not hold; the vacuum gauge should show CHECK VACUUM
a gradual bleed attributable to the valve orifice. VALVE PUMP

Install the valve in the reverse order of removal.

Hot Air Pipe

Remove the under cover (see page 13-11).
Remove the left cooling fan (see page 5-11).
Remove the air cleaner duct (see page 4-18).
Disconnect the hot air pipe from the hot air chamber (left
exhaust pipe) and remove the pipe. Check it for damage
or deterioration.
AIR CONNECTING
PIPE RUBBER

Install the pipe in the reverse order of removal, being

careful to follow the instructions in the following note.

NOTE
" Connect the hot air pipe to the hot air chamber first,
then connect the pipe with the connecting rubber.
" Set the pipe so that the pipe protector can be attached
to the ignition coil as shown.

- - - I ( - , ( - : r-----

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 Pulse Secondary Air Injection (PAIR) System
System Inspection NO . .Ii (ORN) TUBE -6\ PLUG -----
Remove both fairing inner covers (see page 13-12). r-'--"--
~=====-'rt
Disconnect the No. 5 (ORN) tube at the 3-way joint.
Remove the plug from the NO.4 (ORN) tube and connect
the tube to the 3-way joint as shown.
Connect a vacuum pump to the engine control module
NO.5 (ORN) tube.
Tool:
Vacuum pump
ST-AH-260-MC7 ~3-WAY
NO.5 (ORN) TUBE JOINT
(~~

Disconnect the No. 1 and No. 6 (GRN) tubes from the

PAIR solenoid valve and plug the tube ends.
Connect a vacuum pump as shown and apply the speci-
fied vacuum to the valve.
Tool:
Vacuum pump
ST-AH-260-MC7
Specified Vacuum: 200 mmHg (1.9 inHg)

Start the engine and allow it to idle. ENGINE CONTROL

MODULE
Vacuum should hold.
Apply the specified vacuum to the engine control module.
Specified Vacuum: 550 mmHg (21.1 inHg)

Vacuum applied to the PAIR solenoid valve should

NO.3(GRN)
release.
Stop the engine and remove the air cleaner element (see
page 4-18). PAIR
SOLENOID
Check that the secondary air intake port is clean and free VALVE
of carbon deposits.
Check the PAIR check valves in the secondary air
passage if the ports are carbon fouled (see page 4-57).
Disconnect the air cleaner to PAIR control valve NO.4
(GRN) tube from the air cleaner housing.
Clamp NO.6 (GRN) tube at the PAIR solenoid valve.

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 Fuel System
Pulse Secondary Air Injection (PAIR) System (cont'd)

Connect a vacuum pump to the No.3 (GRN) tube.

Tool:
Vacuum pump
ST-AH-260-MC7
Start the engine and open the throttle slightly to be certain
that air is sucked in through the NO.4 (GRN) tube.
If air is not drawn in, check the No.2 (GRN) and NO.4
(GRN) tubes for clogging.
With the engine running, gradually apply vacuum to the
No.3 (GRN) tube.
Specified Vacuum: 200 mmHg (1.9 inHg)
Check that the air intake port stops drawing air, and that
the vacuum holds.
If air is still drawn in, or if the specified vacuum is not
maintained, check No. 1 and No. 3 (GRN) tubes for
clogging. Replace the PAIR control valve, if necessary.
Check the PAIR check valve joint hoses and air supply
pipes (see page 4-7).

PAIR Control Valve Removalllnstallation

Remove the carburetor (see page 4-19).
Disconnect the No.1, No.2 (GRN) tubes and No. 16 NO. 16
HOSE
hoses from the PAIR control valve.
Remove the bolts and PAIR control valve. Inspect the
PAIR control valve.
Install the PAIR control valve in the reverse order of
removal. ~
NO.16
HOSE /
NO. :2 IGRI\II
TUBE

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 PAIR Check Valve Inspection PAIRCtiECK
VALVE CASE
Remove the PAIR control valve (see previous page).
Remove the bolts and PAIR check valve case.
Remove the PAIR check valve joint hoses and check O-RING

them for damage or deterioration.

Remove the air supply pipes of the NO.1 and 2 cylinders.
Check the pipes and O-rings for damage or fatigue.
Remove the pipe mounting bolts (No. 3 and No.4).
Remove the exhaust pipes (see page 7-28).
Left side:
Remove the bolts, gasket, and air supply pipe of the NO.4
cylinder.
Remove the air supply pipe of the NO.6 cylinder.
Right side:
Remove the timing belt shield cover (see page 7-6).
Remove the bolts, gasket, and air supply pipe of the NO.3
cylinder.
Check the pipes and O-rings for damage or fatigue.
PiPE
Remove the PAIR check valve cover and PAIR check (NO. 4 CYLINDER)
valves.
Check the reeds for damage or fatigue. Replace, if
necessary. ~.~REED
Install a new PAIR check valve if the seat rubber is
cracked or damaged, or if there is clearance between the
reed and seat.
-/~
REED STOPPER

CAUTION
e Do not disassemble or bend the reed stopper.
" The reed valve must not be disassembled.
" If the stopper, reed or seat is faulty, replace it as
a unit

To assemble the PAIR check valve chamber, reverse the

removal procedure.

NOTE
" Install new O-rings and gasket on the air supply
pipes.
" After assembly, make sure the air and vacuum tubes.
are correctly connected (see page 4-7).

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 Fuel System
Pulse Secondary Air Injection (PAIR) System (confd)

PAIR Solenoid Valve Inspection

Remove the left fairing inner cover (see page 13-12). PAIR SOLENOID VALVE

Disconnect the NO.1 tube and NO.6 (GRN) tube from the
PAIR solenoid valve.
\
Disconnect the 2P-YEL connector and remove the PAIR
solenoid valve.

Connect a vacuum pump as shown.

PAIR SOLENOID VALVE
Tool:
Vacuum pump
ST-AH-260-MC7
Apply the specified vacuum to the valve.
Specified Vacuum: 400 mmHg (15.1 inHg)
Vacuum should hold.
Replace the valve if vacuum does not hold.

Connect a vacuum pump to the valve as shown. Apply

the specified vacuum to the valve. PAIR SOLENOID VALVE

Specified Vacuum: 200 mmHg (1.9 inHg)

Connect a 12V battery to the valve wires. Vacuum should
be released. Replace the valve if vacuum remains
steady.
Install the valve in the reverse order of removal.

NOTE
_,~"w,' _

o Route the tubes properly (page 4-1) and check the

tube for loose or poor connections.

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 Evaporative Emission CEVAP) Control System (California model only)
Remove the left fairing inner cover (see page 13-12). EVA? PURGE
Check the system hoses for deterioration, clogging, CONTROL VALVE
damage, loose joints and connection.
Replace any hose that shows signs of damage or deteriora-
tion.
Evaporative Emission (EVAP) Purge Control
Valve Inspection
NOTE
@ The EVAP purge control valve should be inspected if
restarting a warm engine is difficult.
._------. "'--' EVA?
Disconnect the EVAP purge control valve hoses from their CARBURETOR
AIR VENT
connections and remove the EVAP purge control valve from CONTROL
its mount. Refer to the routing label on the fuel tank below VALVE
the top compartment for hose connections.
Connect a vacuum pump to the No. 11 hose fitting that goes
to the right carburetor body. Apply the specified vacuum to
the EVAP purge control valve.
Tool:
Vacuum pump
ST-AH-260-MC7
Specified Vacuum: 250 mmHg (9.8 inHg)
The specified vacuum should hold.
Replace the EVAP purge control valve if vacuum does not
hold.
Remove the vacuum pump and connect it to the NO.4 hose
fitting that goes to the left carburetor.
Apply the specified vacuum to the EVAP purge control
NO.4
valve. HOSE
Specified Vacuum: 40 mmHg (1.6 inHg) =~;=:'1 fR=~L FITTING
The specified vacuum should hold.
Replace the EVAP purge control valve if vacuum does not
hold.
Connect a pressure pump to the No.4 hose fitting that goes
to the EVAP canister. Apply the specified vacuum to the No.
11 hose fitting that goes to the right carburetor. Pump air
through the canister port. Air should flow through the EVAP
purge control valve and out the NO.5 hose port that goes to
the carburetor. Replace the EVAP purge control valve if air
does not flow out.
Tool:
Pressure pump
ST-AH-255-MC7
Specified Vacuum: 50 mmHg (2.0 inHg)
CAUTION
--'''-'--~~'''~''-----~
@ To prevent damage to the EVAP purge control valve,
do not use high air pressure sources. Use a hand-
operated air pump only.

Remove the pump, install the EVAP purge control valve on

its mount, route and reconnect the hoses according to the
vacuum hose routing diagram on the fuel tank (below the
seat) or the hoses and tubes routing/connection diagram
(page 4-7).

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 Fuel System
Evaporative Emission (EVAP) Control System (California model only) (cont'd)
Canister
Remove the EVAP canister mounting bolt and release
the claw from the frame tab.
Disconnect the No. 4 hose and red color hose from the
EVAP canister.
Remove the EVAP canister.
Check the EVAP canister for any cracks, deterioration, or
damage.
Install the EVAP canister in the reverse order of removal.

EVAI' Carburetor Air Vent (CAY) Control Valve

Inspection
NOTE
.. The EVAP CAV control valve should be inspected if
restarting a warm engine is difficult.
."~-----~""""".".~,,.~_.~ ...._.~.~-~~---~

Disconnect the EVAP CAV control valve hoses from their

connections and remove the EVAP CAV control valve
from its mount. Refer to the routing label on the fuel tank
for hose connections.
Connect a vacuum pump to the No.1 0 hose that goes to
the intake manifold. Apply the specified vacuum.
Specified Vacuum: 250 mmHg (9.8 inHg)
The specified vacuum should hold.
Replace the EVAP CAV control valve if vacuum does not
hold.
Connect the vacuum pump to the air vent port of the
EVAP CAV control valve.
Apply vacuum to the EVAP CAV control valve. The
vacuum should hold steady.
AIR
Replace the EVAP CAV control valve if vacuum leaks. VENT
PORT
Connect the vacuum pump to the No. 10 hose that goes
to the intake manifold.
Connect the pressure pump to the air vent port of the
EVAP CAV control valve.
Tool:
Pressure pump TO
ST-AH-255-MC7 1\.10.10
HOSIE
While applying the vacuum to the NO.1 0 hose port, pump
air through the air vent port. Air should flow through the
c3::~
TO NO.6 / IL_-:B. C:::.J1
EVAP CAV control valve and out the NO.6 hose port that
goes to the carburetors. HOSE J~ \.. VACUUM
v/ "\ AIR
PUMP
VENT
CAUTION .." _._,,.__~..,,..~........, ,-----
~.-~.".""""."--~ ...
PORT
.. To prevent damage to the EVAP CAV control
valve, do not use high ail' pressure SOlJn:es. Use
a handsoperatoo ail' pump only.

4-60
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 Plug the NO.6 hose port that goes to the carburetors.
While applying vacuum to the NO.1 0 hose port, apply air
pressure from the air vent port. It should hold steady.
Replace the EVAP CAV control valve if pressure is not
retained.
Remove the pumps, install the EVAP CAV control valve
on its mount, route and reconnect the hoses according to
the vacuum hose routing diagram on the fuel tank (below
the seat) or on the hose and tubes routing/connection
diagram (pages 4-7 and 4-8).
PRESSURE
PUMP

Cruise Control (A & SE only)

Service Inforr:~ation
Before troubleshooting the Cruise Control System (see next page), perform the following system check with a road
test:
1. Make sure the battery is fully charged and its terminals and cables are clean and tight.
2. Tum the ignition switch to ON. The "Cruise Set" and "Cruise On" indicator lights should go on for a few seconds
and then go out.
3. Tum the "Cruise On" switch to ON. The "Cruise On" indicator light should go on and stay on.
4. Start the motorcycle and accelerate to a speed above 30 mph (48 km/h). With the transmission in 4th or 00 gear,
press the Set/Decel switch and release the throttle grip. With the Set/Decel switch depressed, the motorcycle
should maintain the set speed.
5. Tap the Set/Decel switch once. The motorcycle speed should decrease by one mph.
6. Tap the Resume/Accel switch once. The motorcycle speed should increase by one mph.
7. Press and momentarily hold the Set/Decel switch, then release it. The speed should decrease as long as you
hold the switch. Releasing the switch should set and maintain the speed at the time of release.
8. Press and momentarily hold the Resume/Accel switch, then release it. The speed should increase as long as you
hold the switch. Releasing the switch should set and maintain the speed at the time of release.
9. The cruise control should cancel whenever you close the throttle or use the clutch, front brake, or rear brake. With
the speed set, check each cancel switch (close the throttle, disengage the clutch, apply the front brake, apply the
rear brake). After each check, press the Resume/Accel switch. The cruise control should cancel with each check
and the speed should resume when you press the Resume/Accel switch if you are still going above 30 mph
(48 km/h). If the motorcycle has decelerated below 30 mph (48 km/h) you can return to the set speed by using the
throttle conventionally until you are above 30 mph (48 km/h) and then pushing the Set/Resume switch.
10. Rotate the throttle grip to increase your speed, then release it. The motorcycle should slow and resume the set
speed.

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 Fuel System
Cruise Control (cont'd)

11. The system will enter any speed above 80 mph (128 I<m/h) as its maximum speed of 80 mph (128I<m/h).
12. With the cruise control on, your speed will still vary slightly, particularly going up or down hills.
13. You can cancel the cruise control by turning off the cruise control switch, ignition switch, or engine stop switch.
This removes power to the control unit and erases the set speed from memory.

@ When inspecting the cruise control system, check the system components step-by-step according to the trouble-
shooting charts beginning on page 4-64.

System location

CRUISE CANCEl
SWITCH (FRONT BRAKE) CRUISE CONTROL SWITCHES

~
AUTOCRUISE
ENGINE STOP . / ... CONTROL UNIT
! ~-

V
CRUiSE CANCEl.. SWITCH
SWITCH (CLUTCH)
,
ENGINE CONTROL !
MODULE ) _-----~,
I

ACTUATOR GEAR
ONE·WAY POSITION
VALVE SWITCH CRUISE CANCEL SWITCH RELAYS 1/216
(REAR BRAKE)

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 raJ
Circuit Diagram

,l.CDlNT

r;:::t=&Lu~
II 0U5E SET .....""
&LuIW I
8
!: 9 CRUSE
INDICATOIl
ON

~I~"_J_;
ACC TERMINAL

' @ @
II II ~ ~ ~!I~i'
~,;' ~;...
~ii:j ;
<t @
t~ ~Dld~'--i
~~ %
REAR
( , I ',"';1 :::2.. •.•. ••
;d:.. ~·,:··'~ 3 .

i
BRAKE :?{:: ~<;:,
I I
l.CDUNlT ~ THROTTLE CRUISE REAR BANK ANGl.E ~
c:o
CRUISE CRUISE
i
~ .~ ~ (-~)
DO
~l
SET ON
II'OCATOR IfClICATOR
'gENSOR. ( 5)

J,"~~ ~
iii i 88
( 6 J
(14P-llLK) VALVE RELAY ~ j !i 1
0
~ ~ (. 7 J

INS~-n- ~ ~ .i~ I 8 J I 12 ,J

~~~I ~
~~ ~--
WHT.'BLK11}WHT'81K
.~ I. 9 ,J
~i i~ l1lP.flLK) i¥ ; -~ ~ ~ ~ ( 10 .)
~&
~
lq M! ( 13 )

~~-
ill ~ €-~<11t@
2:. Co:IC~

-IIIi ~ ~ ~ 0 ~ ~'GRN) ~ FUSE BOX RELAY BOX

~~:"~~~ WHT....(l;l.....WHT
W~U W H T - - - - B L U · W H T i 1 . r B l U ' W H " · - - - - - - - - - - - - - - _
I I iii I i i~~ ~ AUTO CRUISE CONTROL UNIT.
FUSE No CIRCUIT
2 HORN TURN I~A
RELAY No CIRCUIT
I HORN TURN

LJ
BLU 3 STeJ> ISA 2 STOPUGHTS
CRUISE CONTROl. VALVE UNIT

i.. I (.' BlK2

II IGN CRUISE ISA 6 IGN. CRUISE

n..: _ I 1 2 3 4 5 6 7 ~ 10 II 12 13 14 15 16
~ !!!!!!!!!~!!!l!J
(22P-RED) ~~~~~~-~~-I"~I~~ AurrO CRUISE CONTROl. UNIT
;i~i~~~~$i:! $1 ~
, I I I I I I I I REOIWHTbJREO/WI otT 1 tV BAT 9 I BRAKE UGI(T 5_ITOI
(NO;
CRUISE Of;
2 ENGlE SPEEO PUl.SE 10
'1'- IfClICATOR
' E L - I-- SET SWlTC)l
CANCEl.. SWITCH
3 11
k)( (NC)
fEL
4 RESUIE SWITCH 12 RELAY COIL
lLU
lLU CRUISE CANL.£l..
.HT
5 SWITCH (CLUTCH LEVER) 13 VACUUM VALVE
IAN GEARSHIFT SENSOR
lED
6 14 VENT VAl.VE
4th
'EL
GEAIl$HIFT SENSOR CRUISE SET
7 I 00
15
IfClICATOR
'RED
'BLK 8 SPEED PUl.SE 16 GROUND
'BL.K
N
WHT
N
[22P.flLK)

~ :> .. i~$ !
~ if!
~ ~~ ~ ~~~~~~ %

~ j
'Fa.,~ (lP'BLK)~
In!!::1
ill '" ~
~[9P'REO:
%

n
~
.--, [iP-BRI( &=6 [iP-BLK) ~
~n,
TTrT- J ~ ~ ~
II .......... l-
mon,
TT"'"'
~ I ~WHT
Ql~
~ ; ...
~ :>
i~~~ ~S~~~i
%

~ ~
~
~ l'" ~ z ~ ~ ~ ill ~ I • [iP-REO: MAIN FUSE B ~SA
; ~ ~
CIl ill" •
'" '" %

~ ~ ~
~

~
r
, I : ACC ; ~AN " P \ TLJ ! T1.2
LToSt,rtor
( Syst• .,.
~..
\ ~)
LOCK i
I
L.STARTER
OFF •
RELAY
ACC cr-----i-O : SWITCH ~

ON ~ 0--+-0
P ~ RESlM:/ SET
CRUISE CANCEL

IGNITION SWITCH ACCEL DECEL SWITCH

SWITCH
(FRONT BRAKE LEVER' --=-
BLK
YEL
BLACK
YEU.Otl
•
llRN
IF';-.-
(J'),E

BLU BL~ LT-BLU ~-:I..-F.

-'
GIlN LHlAN ~G--~

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 Fuel System
Cruise Control (cont'd)

Troubleshooting
Cruise control does not function at all.
NOTE
Cruise control is cancelled when:
.. Either brake (front or rear) is applied.
.. The clutch lever is operated.
.. The throttle is returned.
Cruise speed memory is cancelled when:
.. The ignition switch, engine stop switch, or auto cruise switch is operated.
Cruise control will not function under the following conditions:
.. At speeds other than 30-80 mph (48-128 km/h).
.. When the transmission is in a gear other than 4th or 00.
Inspect the following before troubleshooting the cruise control system .
.. Be sure that fuse 11 (15A), inside the fuse box, is good.
.. Be sure the terminal connections of the cruise cancel switches (see page 4-72) are good.
.. Be sure the cruise cancel switch of the rear brake is properly adjusted (see page 4-73).

Abnormal
CRUISE INDICATOR: Turn the ignition BULB: Check that the bulbs are good.
switch ON and engine stop switch to RUN.
Check that the cruise indicator lights come Good ~ Bad
on for a few seconds, then go off. .. Faulty bulb.

I Normal DISPLAY OPERATION: Check auto leveling

suspension display operation.
WIRING/SWITCH: With the ignition switch
ON and engine stop switch on RUN, turn
the auto cruise switch ON. The "Cruise On"
Normal
!
.. Go to Section 12
Abnormal

indicator light should go on and stay on. troubleshooting

1 Normal Abnormal
(see page 12-10).

o WIRING/CONNECTOR: Disconnect the

1OP-WHT connector under the instrument.
Measure the voltage between the BLU/ORN
WIRING: Measure voltage between the (+) and ground (-). With the ignition switch
control unit NO.1 terminal and ground ON and engine stop switch on RUN, battery
(see page 4-70). voltage should register.

Normal ! Abnormal
~i] /f~~-c;,-=_ '.~ _~ISii~~~·.1

.. Open or short circuit in wire

harness. A J~
/.~
+\JO-L"
1 -
.. Loose or poor contact of
connectors.
.. Faulty auto cruise switches
~ Yes ~ No
(see page 4-74). .. Loose or poor .. Open or short circuit
contact of the 10P in wire harness.
® WHT connector.
.. Faulty L.C.D. unit.
.. Loose or poor con-
tact of connectors.

4..64
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 WIRING: Measure voltage between the Abnormal WIRING: Measure voltage between the
control unit NO.2 terminal and ground (see control unit No. 10 terminal and ground (see
page 4-70). page 4-70).

Normal Normal ~ Abnormal

.. Open or short circuit
in wire harness.
.. Loose or poor contact
of the connectors.

POWER TO SPEED SENSOR: Disconnect WIRING/ENGINE CONTROL MODULE:

the 3P-WHT mini connector of the speed Disconnect the 26P-VEL connector from
sensor under the instrument. Measure the engine control module and measure the
voltage between the LT GRN/BLK (+) and voltage between the cruise control unit No.2
GRN/BLK (-) wire terminals with the ignition terminal and ground (see page 4-70).
switch on.
Abnormal Normal
.. Faulty engine control unit.

WIRING/CRUISE CONTROL UNIT:

Disconnect the 20P-BLK connector from the
cruise control unit and check for continuity
between the connector NO.2 (WHT/BLK)
Battery voltage Voltage doesn't terminal and ground.
should register register
.. Open or short circuit No Continuity Continuity
in wire harness.
.. Short circuit in wire harness.
.. Loose or poor contact
of the connectors. .. Faulty auto cruise control unit.

WIRING: Measure voltage between the Abnormal SPEED SENSOR: Check the speed sensor
control unit No.2 terminal and ground (see I=----~~I (see page 19-16).
page 4-70).
Normal Abnormal
Normal
.. Open or short circuit .. Faulty speed sensor.
in wire harness.
" Loose or poor contact
WIRING/COMPONENTS: Perform the auto of the connectors.
cruise control unit system inspection. If re-
sults aren't normal, check the related compo-
nents of the abnormal lines (see page 4-70).

Normal

4..65

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 Fuel System
Cruise Control (cont'd)

Abnormal
CRUISE CONTROL VALVE: Check the cruise " Faulty cruise control valve.
control valve (see page 4-75).

HOSES: Check if the vacuum hoses are Abnormal

disconnected, clogged, or damaged (see " Faulty vacuum circuit.
page 4-78).

Normal

CABLES: Check the throttle cables and Abnormal

actuator cable for smooth operation. - - - - - . . " Binding or jammed cable or link.

Normal

VACUUM ACCUMULATOR: Check vacuum Abnormal

" Damaged vacuum accumulator.
accumulator for damage (see page 4-78).

Normal

ONEmWAY VALVE: Check one-way valve Abnormal

(see page 4-78). " Faulty one-way valve.

Abnormal
" Faulty actuator.

Test with a cruise control unit know to be

good.

Normal
- - - - - - - - - - - - - - - . . " Faulty auto cruise control unit.

Cmise Control Will Not Resume

NOTE
" Cruise control will not resume if speed drops below 30 mph (48 km/h).
" Holding the resume/accel switch ON causes the motorcycle to accelerate to nearly full throttle. However, cruise
control will only operate to 80 mph (128 km/h).
" Cruise control will not resume when either the auto cruise switch, engine stop switch, or ignition switch is turned
OFF, or when both the resume and set switch are operated simultaneously (memory is erased).

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 CONFIRM: Check cruise control for proper
function. Cancel cruise control by applying Abnormal
brake, then turn the resume switch ON. ~.~--.t> '" Go to "Cruise control does not function at all"
Cruise control should resume. (see page 4-64).
= "=,=,=.='''r-N-~;~-a-I
" """'--

..
- - " - ' ' ' ' ' ' ' ' ' ' - - ' ' ' ' ' ' ' ' , , ,------,

POWER TO CONTROL UNIT: With ignition

switch and cruise switch ON, and engine stop
switch on RUN, measure voltage between the o Volts
~---~ '" Faulty cruise resume/accel switch.
WHT/BLU (+) and GRN (-) terminals of con-
trol unit connector. Battery voltage should reg- '" Loose or poor contact of 6P BRN
ister when the resume switch is depressed connector on the right cooling fan.
(see page 4-'70). e Open or short circuit in wire harness.

~'~'--""'-'-='''''..'''------=~~
Abnormal
HOSE: Check vacuum hoses for damage or e Faulty vacuum circuit.
clogging. (See page 4-78.)

Normal

r""';'~--;:'UATOR: Inspect actuator (see page 4-'76). Abnormal

~""~-T Normal " ~---==it> '" Faulty actuator.

, ~""

CRUISE CONTROL VALVE: Check cruise Abnormal

control valve (see page 4-75). '''' Faulty cruise control valve.

r--~ormal
~.

Test with a cruise control unit known to be

good.

I Normal
0> '" Faulty auto cruise control unit.

Cmise Speed Fluctuates Excessively (More than 5 mph) Immediately After Setting
NOTE
=------
'" Before troubleshooting, check the carburetor synchronization. adjust synchronization, if necessary (see page 3-20).

'[;OSEs;"c~ec~ vacu'~"~ hoses for disconnec- Abnormal

~---•.
. .
'" Faulty vacuum CirCUIt.
tion, clogging, or damage.
-"-=~ Normal

CABLES: Check throttle cables and actuator Abnormal .

~---• ., Binding or jammed cable or link.
cable for smooth operation.

~ Normal

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 Fuel System
Cruise Control (cont'd)

Abnormal
I==o----~ @ Faulty actuator.

CONTROL VALVE: Check cruise control Abnormal

valve unit (see page 4-75).
I==o-----~0 .. Faulty cruise control valve unit.
__ ~ ~ _ - . J

Normal

~::~~~:4~~~V~k one-way valve - -ol- Abn~al •• FaUl1y one-way valve.

Normal

I lest. with a crui"''3COlltrc)1

~,
unitknl:)wln tel b~e gooc:L !---:N::o::r::m:a:I_~ @ Faulty cruise control unit.

Cruise Control is Cancelled Accidently

SENSOR SIGNAL: With ignition switch ON,
measure voltage between the YEURED (+) and Abnormal SPEED SENSOR: Check the speed
GRN H terminals of the auto cruise control unit I--- ~.... sensor (see page 19-16).
connector. Voltage should change from about
10 V to less than 0 V alternately when rotating
the front wheel slowly.
! Abnormal
-~-""""'9F"""*--~

.. Faulty speed sensor.

mal
Normal
WIRING: Measure the voltage between the
control unit NO.2 terminal and ground (see
page 4-70). CANCEL SWITCH: Check the cruise
cancel switch of the rear brake (see
page 4-"73) for adjustment.
Normal Abnormal
WIRING/ENGINE CONTROL MODULE: Dis-
connect the 26P-YEL connector from the engine
control module and measure the voltage be-
o " Improper switch adjustment.
tween the cruise control unit No 2 terminal and Normal
ground (see page 4-70). ...-----~.... Faulty engine control module.

'fAbnormal·'

WIRING/CRUISE CONTROL UNIT: Disconnect

the 20P-BLK connector from the cruise control
unit and check for the continuity between the Continuity
I==o----~@ Short circuit in wire harness.
connector NO.2 (WHT/BLK) terminal and
ground.

~ No Conti~'u~ty
.. Faulty auto cruise control unit.

4~68

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 CRUISE VALVE RELAY: Check the cruise Abnormal
valve relay (see page 4-74) and contact at the -----jpjp" Faulty cruise valve relay.
relay terminals. " Poor contact of relay terminals.

CANCEL SWITCHES: Check each cancel Abnormal

switch (see page 4-72). IP" Faulty cancel switches.

Normal
---"""'!PIP" Open or short circuit in wire harness.
" Loose or poor contact of connectors.
Cruise Control Cannot be Cancelled.
NOTE
" The cruise control should cancel when a brake is applied, the clutch lever is pulled in, the throttle is closed, or the
transmission is shifted. Check the cancel switches, brake light switches and gear position switch for proper opera-
tion before proceeding further.

Abnormal
HOSE: Check vacuum hoses for clogging
or damage.
------....
1> " Faulty vacuum circuit.
Normal
~ ..
Abnormal
CABLES: Check throttle cables for smooth .. Stiff throttle cable/linkage.
movement by turning throttle grip.

~ .Normal
Abnormal
ACTUATOR: Check actuator operation (see IP " Stuck or jammed actuator cable.
page 4-74). " Faulty actuator.
~ No;m~1
CONTROL VALVE: Check cruise control Abnormal
valve unit (see page 4-75). .. Faulty cruise control valve unit.

I
'lI'

CRUISE VALVE RELAY: Check the cruise Abnormal

.. Faulty cruise valve relay.
valve relay (see page 4-74).

~ Normal

Test with a cruise control unit known to be

good.

Normal
--------,.1> . FaUlty cruise control unit.

4-69
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 Fuel System
Cruise Control (cont'd)

Auto Cruise Control Unit

- System Inspection
Remove the tru nk (see page 13-14).
Disconnect the auto cruise control unit connector and
check it for loose contact or corroded terminals.
Turn the ignition switch ON and check for voltage at the
following wires (+) of the 20P-BLK connector.
If a terminal/line check is not normal, first check the wire
harness for an open or short circuit. Also check the
connectors for loose or poor contact. Then, using the
chart below, inspect the following related component(s),
observing the conditions identified in the following note:
NOTE (CONDITIONS FOR CHART BELOW) WIRE HARNESS SIDE OF CONNECTOR

1: Engine stop switch in RUN

2: Auto cruise switch pushed (LOCK)
3: Set/decel switch depressed
4: Resume/accel switch depressed
5: Clutch disengaged
6: Front brakelight or rear brakelight switch in ON
7: Cruise cancel switches (front brake, rear brake, and
throttle) in OFF
8: Front wheel rotated slowly
9: Auto cruise control unit connector connected
.- . v~~v,

TERMINAL LINE COLOR VOLTAGE CONDITION(S) RElATED COMPONENT(S)

~V·~<
='ll>vm""

1 Battery voltage (+) BLKlYEL Battery 1,2 Auto cruise switch (see page 4-74)
." .,,..,

2 Engine speed pulse WHT/BLK Battery 1,9 Engine control module (see page 16-7)
~~~''''»'''~,,-,-
,...."...
3 SeVdecel switch WHT/YEL Battery 1,2,3 SeVdecel switch (see page 4-74)
Auto cruise switch (see page 4-74)
_____m···· ...,......
4 Resume/accel switch WHT/BLU Battery 1,2,4 Resume/accel switch (see page 4-74)
Auto cruise switch (see page 4-74)
uu......

5 Cruise cancel switch (clutch) GRN/BLU Battery 1,2,5 Cruise cancel switch (clutch) (see
page 4-72)
Auto cruise switch (see page 4-74)
~ .. ""' .. ....
,~ ~'"

8 Speed sensor (+) YEURED 0-10 8 Speed sensor (see page 19-16)
Pulse
'......., = "u""

9 Brakelight switch GRN/YEL Battery 6 Front brakelight switch (see page 3-28)
Rear brakelight switch (see page 3-28)
Relay 2 (see page 4-74)
,~»>

,="''''"""

10 CRUISE ON indicator
..uu"'m==_ _ _ _ _ ' .. ..
BLU/ORN Battery 1 CRUISE ON indicator bulb (see page 19-16)
- r---"""'-"
~ ~ , ~

"''''Ull'

11 Cruise cancel switch (front brake, BRN/RED Battery 1,2,7 Cruise cancel switch (front brake,rear brake
rear brake, and throttle) and throttle) (see page 4-72)

1---- ,...---......
12 Relay coil
_-_ ......
GRN/BLK
m_m
___

Battery
..
'u·~·

1,2,7
Auto cruise switch (see page 4-74)
...-
Cruise cancel switch (front brake, rear brake
and throttle) See page 4-72)
Auto cruise switch (see page 4-74)
Cruise valve relay (see page 4-74)
uun

BLUIWHT Battery 1 CRUISE SET indicator bulb (see page 19-16)

b....
15 CRUISE SET indicator bulb -~-_.._...._. ............ ...:.-...... -- ............... _.

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 Next, inspect terminals 13 (vacuum valve) and 14 (vent
valve): AUTO
CRUISE
With the cruise cancel switch (front brake, rear brake and SWITCH
throttle) in OFF, engine stop switch in RUN, and ignition
switch ON, short the GRN/BLK terminal to the GRN
terminal with a jumper.
Depress the auto cruise switch. The cruise control valve
(relief) is normal if it clicks.
NOTE
" The cruise valve relay should also click at the same
time.

Maintain all of the above conditions and ground the termi-

nal13 (BRN/BLK wire) with a jumper. The cruise control
valve (vacuum) is normal if it clicks. VENT VALVE
#
#
#
Then ground terminal 14 (BRN wire) with a jumper. The
cruise control valve (vent) is normal if it clicks.
Next, maintaining all of the above conditions, measure
voltage between terminal 13 (BRN/BLK wire) (+) and
ground and between terminal 14 (BRN wire) (+) and
ground. Battery voltage should register.
If battery voltage doesn't register, inspect the following: \

" Wire harness for open or short circuit. RELIEF VALVE -----

" Connectors for loose or poor contact.

" Cruise cancel switch (front brake, rear brake and
throttle) (see page 4-72).
" Cruise valve relay (see page 4-74).
" Cruise control valve unit (see page 4-75).
Next, inspect terminals 6, 7, and 16.
Turn the ignition switch to OFF.
Check for continuity between the following wires in the
20P-BLK connector and ground.

..
TERMINALLINE COLOR CONTINUITY CON DmON PROBABLE CAUSE
..... r--....
~ ..
6 Gear po sition switch: 4th REOIWHT Exists Transmission in "Open or short circuit in wire harness
4th • Loose or poor contact of connector
-.
7 Gear po sition switch: 00 GRN/ORN Exists Transmission in • Gear position switch (see page 16-13)
00
'Q" . - ...
16 Ground GRN Exists At all times " Open or short circuit in wire harness
" Loose or poor contact of ground terminal
_ _,u.
~------ . .

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 Fuel System
Cruise Control (cont'd)

CRUiSE CANCEL SWiTCH

(fRONT BRAKE)
- Front Brake
Disconnect the bigger terminals behind the right
~-
._-'_._-~~~
'\'\
handlebar.
Check for continuity between the BLK/BLU and GRNI
WHT wire terminals.
Brake lever released: Continuity
Brake lever pulled in: No continuity

If continuity is abnormal, install a new switch.

Remove the screw and disconnect the wires from the
switch.

o When installing the switch, align the switch pin with

the master cylinder hole. Connect the wires to the cor-
rect size terminals.

- Clutch
Disconnect the BLKlYEL and GRN/BLU wires from the
terminals on the cruise cancel switch.
Check for continuity between the switch terminals.
Clutch lever released: No continuity
Clutch lever pulled in: Continuity

~ Throttle
Remove the left fairing inner cover (see page 13-12).
Disconnect the 2P-BLU connector of the connector
holder behind the cruise control valve unit.
Check for continuity between the GRNIWHT and BRNI
RED wire terminals. There should be continuity with the
throttle grip in any position.
Turn the throttle grip to open the throttle. Then turn the
throttle grip beyond the fully off, idle position until it
reaches its stop. There should be no continuity.

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 If either of the two tests fails, replace the throttle grip
CANCEl SWITCH
cancel switch as follows:
Disconnect the throttle return cables from the throttle grip
and the carburetor throttle drum.
Remove the bolt and the cancel switch cover. Remove
the two mounting bolts and the throttle grip cancel switch.
Install a new throttle grip cancel switch in the reverse
order of removal.

NOTE
" Apply grease to the cable ends and switch drum
before connecting them. BOLTS

CAUTION
" Do not remove the cancel switch drum from the
switch shaft.

Rear Brake
Remove the right fairing inner cover (see page 13-12).
Disconnect the 2P-RED connector from the connector
holder behind the ignition control module.
Check for continuity between the GRN/WHT and BRN/
RED wire terminals.
4-8 mm
Brake pedal released: Continuity (0.2-0.3 inl
Brake pedal depressed: No continuity
NOTE
" No continuity should appear when the brake pedal is
depressed 4-8 mm (0.2-0.3 in).
ADJUSTING NUT

To adjust, remove the right exhaust pipe (see page 7-28).

Loosen the lock nut on the master cylinder push rod.
Connect an ohmmeter to the switch wire connector.
Depress the brake pedal approximately 4-8 mm
(0.2-0.3 in) and then turn the adjusting nut until
"Continuity" shifts to "No continuity".
Tighten the lock nut.

NOTE
" Replace the switch by removing screws if continuity
or no continuity fails to shift.

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 Fuel System
Cruise Control (cont'd)

Cruise Control Switches

- Inspection
Remove the right fairing lower cover (see page 13-12).
Disconnect the 6P-BRN connector of the connector
holder on the right cooling fan.

Continuity checks for the cruise control switches (Auto

Cruise switch), SeVDecel switch, and Resume/Accel
switch) are shown in the chart.
Continuity should exist between the color coded wires.

WHTI BlKl WHTI BlK WHT

Color Color
BlU VEl VEL VEl

RESUME FREE
ON

FREE

AUTO CRUISE
SETON
SWITCH

RESUME / SET SWITCH

ACCEL DECEL

Cruise Valve Relay

- Continuity Inspection
Remove the left fairing inner cover (see page 13-12).
Remove the cruise valve relay.

Connect an ohmmeter and 12 V battery to the relay as

shown. There should be continuity.

Disconnect the battery. There should be no continuity.

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 Cruise Control Valve Unit
.tW-Sl£<
- Inspection CONNECTOR
~/'
Remove the left fairing inner cover (see page 13-12). ;,;;--........,
Disconnect the 4P-BU< connector from the connector
holder under the cruise control valve unit.
Pry off the valve unit and actuator vacuum hoses with a
small screwdriver.
----/ I.
CAUTiON ACTUATOR ~ "'- fiv.
HOSE ~ CRUiSE CONTROL
@ The plastic connectors are fragile. Pull the VALVE UNIT
hoses straight off; side stress may break the
connectors.

Connect a vacuum pump to the valve unit hose connector

and apply vacuum. If the vacuum does not remain
steady, replace the valve unit with a new unit.
Connect a blocked plug to the actuator vacuum hose.
While maintaining vacuum, apply battery voltage across
the connector terminals as shown in the table below.
CAUTION
@ Avoid touching the positive (+) battery test wire
to the negative (-) test wire. If a test involves two
or more negative wires, first connect all negative
wires to the negative battery wire, then connect
the positive wire to the positive battery wire.
AWlY NO VACUUM RELIEF VENT
INSPECTION TABLE VOLTAGE CLOSE OPEN OPEN

~=.
Battery voltage
Vacuum
(-~) battery Wir~~.=1(+L?,attery,~ ...~
Current not applied HOLD
'~'~""--'

BRN/BLK RELIEVE
GRN HOLD
-=~_ _~_._-.-~....,.-.,-.=.~
=m=_·'_""w._~'

BRN HOLD
'~-="'-'~'-=~-== "_"""',,'=~"cc=,_= ....

BRN/BLK, GRN BRN/WHT RELIEVE

BRN/BLK, BRN RELIEVE
BRN, GRN HOLD
"".. "~--~--"--,,,,,.,-_ ... , --.......-.{
BRN/BLK, BRN, GRN ____
DECREASE..
. - d " , _ , , , , , ~ _ , , _ ~,

NOTE
" HOLD: Vacuum should remain steady when battery
voltage is applied to the terminals.
" RELIEVE: Vacuum should be relieved when battery
voltage is applied.
" DECREASE: About 100-150 mmHg of vacuum
should be lost each time battery voltage is applied.

If you don't obtain specified results, replace the valve unit

as an assembly by removing the screws.

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 Fuel System
Cruise Control (cont'd)

~ Inspection
Remove the top compartment (see page 13-9).
Disconnect the vacuum hose from the valve control unit.
Connect th~ vacuum pump to the actuator. Apply vac-
uum. The throttle grip should rotate.
If vacuum does not remain steady, install a new actuator.
If the throttle grip does not rotate with vacuum applied,
check the following:
.. Throttle Operation (see page 3-16).

- Removalllnstallation
Remove the left fairing inner cover (see page 13-12).
Disconnect the actuator cable from the throttle drum (see
page 4-20).

Remove the engine bracket bolt and engine mounting

nut.
Remove the actuator.
Install the actuator in the reverse order of removal.
Torque Values:
Engine bracket bolt: 25 i\I-m (2.5 kg-m, 18 ft-Ib)
Engine mounting nut: 40 i\I-m (4.0 kg-m, 29 ft-Ibl

4=76
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 After installing the cruise actuator, remove the inspection
window cap on the left radiator fan shroud. Use a flash-
light to check that the aligning mark on the actuator cable
arm aligns with the index groove.

CAUTION
.. Do not move the actuator cable out of its routing
when checking and adjusting the cable. If the
cable is moved out of its routing, the actuator
arm may be pulled with the inner cable and
aligning mark may shift.
iNDEX GROOVE AliGNiNG MARK
If the aligning mark does not align with the index groove
adjust as follows:
Slide the boot off the adjuster, loosen the lock nut and turn
the adjuster as required.
To move the aligning mark upward, turn the adjuster in
the direction. 0
To move the aligning mark downward, turn the adjuster
in the direction. 0
After adjustment, slide the boot on the adjuster properly. lOCK NUT

ADJUSTER

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 Fuel System
Cruise Control (cont'd)

Vacuum Accumulatolf'
-Inspection
Remove the left fairing lower cover (see page 13-12).
Inspect the vacuum accumulator for damage.
Remove the radiator mounting bolt. Remove the accu-
mulator with the stay. Replace, if necessary.

One~Way VCllve
- Inspection
Remove the left fairing lower cover (see page 13-12).
Disconnect the vacuum hose (No.2) from the vacuum
fitting of the intake manifold of the No.3 cylinder and
disconnect the NO.4 hose from the vacuum accumulator.
Connect a vacuum pump as shown and apply vacuum.
Tool:
Vacuum pump
ST-AH-260-MC7
Vacuum should not hold; the vacuum gauge should show YO: CRUISE
a gradual bleed attributable to the valve orifice. COIIITROl VALVE
UNIT ICI..O$B)!
Connect a vacuum pump to the No. 4 hose Disconnect
the NO.3 hose from the valve and plug the NO.3 port.
VACUUM
Apply the specified vacuum and vacuum should be

\n
ONE-WAY ACCUMUI.ATOR
maintained. VALVE

I
NO. 4
HOSE
Specified Vacuum: 40 mmHg (106 inHg) I '
TO: INTAKE
If pressure doesn't remain steady, check the vacuum MANIFOLD
\
hoses (see below). =1'.-.. .~
-~~. .
Replace the one-way valve if necessary. T~1Jjl \~ V~~~M
~~s~ Ii Ii", ~_
CRUISE CONTROL No. 3 HOSE
VALVE UNIT
(ClOSED)
Vacuum Hoses
-Inspection
Inspect the No.2, 3 and 4 vacuum hoses (blue taping) for
damage, deterioration, or loose connection.

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 Cooling System
Service Information """"" 5..2
Troubleshooting """""""" 5..5
Inspection and Testing "" 5..7
Coolant Replacement """ 5..8
Radiator """"""""""""""" 5..9
Cooling Fan " " " " " " " " " " "" 5..11
Reserve Tank """""""""" 5..12
Thermostat, Carburetor
Coolant Thermal Valve,
Water lines """""""""" 5..13
Water Pump " " " " " " " " " " "" 5..15
Coolant Temperature
Sensor/Gauge .. """"." 5..17
Thermostatic Fan Motor
Switch "...."....".."" 5..18

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 Cooling System
Service Information

" Do not remove the radiator cap when the engine is hot The coolant is under pressure and severe
scalding could result The engine must be cool before servicing the cooling system.

" Use new O-rings when reinstalling or replacing cooling system parts.
" Use only distilled water and ethylene glycol in the cooling system. A 50-50 mixture is recommended for maximum
corrosion protection. Do not use alcohol-based antifreeze.
" Add coolant at the reserve tank. Do not remove the radiator cap except to refill or drain the system.
@ All cooling system service can be done with the engine in the frame.
" Avoid spilling coolant on painted surfaces.
" After servicing the system, check for leaks with a cooling system tester.
" For engine coolant temperature (ECT) sensor removal and inspection, see page 16-15.
" To identify water tubes, see the illustration on page 5-15.
@ When inspecting the coolant temperature sensor/gauge and thermostatic fan motor switch, check the system
components and lines step-by-step according to troubleshooting guidelines (see page 5-5).
'f

III yr-;~; '\r[ '. ~.~ . .

/JI :~L~. "
~r:i--J-l
c:---- __ ._
'. .
~-c..~.b 1----<-
r-----===--~- ~ = __ !,C_~ n -~::'
j.J.'r.rtJ.~ ".~.-<'~T.~~'.
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---':::'::::::::'~'j'-J_Cy----'

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,.
/ '7) , )1' '''"''''::.____ - -: __

l\Jo,€>-~ITI1i~~1
-~7 /\ /7J1~~~;-$~-f:~~
11~.,.III~ l i
. IJIWIII
(;=-c:~l_c::.~ I. ~:~--.-. -- -( ~~i '.: ~.'~.~?/r ~
.~~"I @ \ d-;~~:;'I\I\"
!..... .;.:. . .•f'.
j;:",;:J'
II' Ii':: j / "i 1--,:.....>.
1/,\1\ I, I
\ . ~ ~ l'''-'b/
~ ~,.... ))~')(')i:>
I\\... ~ (/--1

'" <~~~L:,:1Jt)) ~~,.'"

Torque Values r(p
Coolant temperature sensor 12 N-m (1.2 kg-m, 9 ft-Ib) Apply sealant
Thermostatic fan motor switch 18 N-m (1.8 kg-m, 13 ft-Ib)
Engine coolant temperature (ECT) sensor 28 N-m (2.8 kg-m, 20 ft-Ib)
Water hose clamp screw 2 N-m (0.2 kg-m, 1.4 ft-Ib)

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 Coolant CC::)l.orse INTAKE MANIFOLD
RISER

TOWATEA
PUMP
UI{fl~"/J ~-~,

~,

CARBURETOR
COOLANT
~ TO WATER PUMP
THERMAL
VIEWED FROM REAR

System location

TEMPERATURE
GAUGE

~
/--~-///
/ /
!--~/

! -'\.
'.:

COOLING FAN
THERIIIIlOSTATIC
FAN MOTOR
SWITCH

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 tn
I
_.
(') 000
~
r--- - ---- - ----
fJ
I!:
:::;
~_.0
0
I
RELAY BOX FUSE BOX FUSE BOX RELAY BOX
I INSTRUMENT
I
r----1
RELAY! I r----'
1 ruSEi I
r---..,
I ruSE 4 i
r----,
1 FUSE 12 I n
CD -=m
........L.;:=; 0-h 0m
.
,L \ I
' I I '(oj III
liSA I
Y'-?I 1Y'11 17"'-'('
( lOA I I SA I
i ...... :3
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oJ Lr-1...J Lt---rJ Lr-1.J ""'I
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m en
I I I I

II
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TEMPERATURE
GAUGE
j 3 !i ~
FUEL GAUGE
I I'

.
I
e

I I I
I
I I
II
II
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g3
: ffi -8
m III ~ III

~~~ ~ I ';
I I
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L_ • I~."') ~ I
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c::
......
VELlWHT1Tt:ve:UWHT-' To Fllsll(mli SM$Qr I RELAY BO~

"=1\~~
RELAY rlo CIRCUIT
IIA l TAIL (14P:IN)
1SA
SA

rLIU_ I I I I I 11- ~~
I: """I'lIH' W I. """"'H'
$ rQ_'H'
W -l.1.l.IJJ
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~~~

e':]~
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(IPBLK)

FAN \:jtJ-BlU I
Ral eLK

I~
~J(!
_SLU
T1., Tll
THERMOSTATIC
FAN MOTOR
OFF SIl1TCH

ACC
@
ON ilI.'m

IGNiTION SWITCH
A
GROUI\O POiNT

B IOn .
Er!iIM,

C talOn Eniine. Heir Dillsttcl

D iOn F'rllMl, UpP6f Dipstick
t" ,..an Motor Switch
GO:I R3diQtOf Near Th!rmosta Ie ~ .
Ne&l' Coolant TtmptreJtmrt SwItch
F\JSoE A
1M
ilJ(

IU ..·
I1W
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m.L.ll"
IIWE
"""
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I.J-iUJ ..· .-WI£

GlIl'l ~ L1_ ... .-mJEil
Jml- Jml mt· ..··.. _
1iHT !II<ITE !!iIIV ........ /ItW

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 Troubleshooting

Engine temperature too high Engine temperature too low

• Faulty temperature gauge or coolant temperature sensor • Faulty temperature gauge or coolant temperature sensor
(see below) (see below)
• Thermostat stuck closed • Thermostat stuck open
• Faulty radiator cap
• Insufficient coolant Coolant leaks
• Passages blocked in radiator, hoses, or water jacket
• Faulty pump seal
• Fan blades bent • Deteriorated O-rings
• Radiator cap not holding pressure • Radiator hose damaged
• Fan not working (see next page) • Loose or overtightened hose clamps
- Faulty thermostatic fan motor switch
- Faulty fan motor
• Leak between the radiator and cooling fan shroud
• Water pump not rotating
• Water pump impellers damaged
• Incorrect coolant-water ratio

Temperature gauge not operating properly.

CUSES/RELAV: Check relay 3I,a;l/;"a;nl

Abnormal
and following fuses: fuse 8 and main fuse B 1-------. Faulty relay 3
(55A). • Burnt fuse 8 or main fuse B
~.--.---~~~---------_.............I

Normal

TEMPERATURE GAUGE: Perform the tem- Good COOLANT TEMPERATURE SENSOR: Check
perature gauge inspection (see page 5-17). the coolant temperature sensor (see page

J_A~I=
POWER TO TEMPERATURE GAUGE:
. 5-17).

Abnormal

• Faulty coolant
Normal

• Loose or poor
Disconnect the instrument 6P-WHT temperature sensor contact of sensor
(I: 4P-WHT) connector and turn the ignition terminal
switch ON. Measure voltage between
BlK/BRN (+) and GRN/BLK (-) wire
terminals of the wire harness side. Battery Yes
voltage should register. - - - - - - . . . Faulty temperature gauge
."~""._--",,-------_.............I
No
- - - - - - - , , " . - . Loose or poor contact of connectors
.. Open or short circuit in wire harness

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 Cooling System
Troubleshooting (cont'd) ---~

fan motor not working.

FUSE: Check fuse 4 and ma.i..n.. _f~u_se """"",.JJF-__BOO_ • @

Blown fuse(s)
A(30 A ) _ _

Good

~~;tch---']

O;
'~~""'-~'-

-'P';rform the thermostatic fan motor Good THERMOSTATIC FAN MOTOR SWITCH:
inspection (see page 5-18)
.. Check the thermostatic fan motor switch
, ==
itself (see page 5-18)
Abnormal

FAN MOTOR: Check the fan motor (see @ Faulty thermostatic .. loose or poor
page 5-12) fan motor switch contact of switch
- terminal
I Abnormal
- @ Faulty fan motor
Normal
===.,.="'-~''''"''''''''''''''''''=-- o Loose or poor contact of connectors
@ Open or short circuit in wire harness

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 Inspection and Testing
Coolant
Test the coolant mixture with an antifreeze tester.
For maximum corrosion protection, a 50-50% solution of
ethylene glycol antifreeze and distilled water is recom-
mended.

Radiator Cap
Remove the right top inner cover (page 13-9) and the
radiator cap.

@ Be sure the engine is cool before removing the

cap.

Pressure test the radiator cap. It must hold specified

pressure for at least six seconds.
Replace the radiator cap if it does not hold pressure, or if
relief pressure is too high or too low.

NOTE
@ Before installing the cap on the tester, moisten the
sealing surfaces.
,-----------
Relief Pressure: 0.15 - 1.()5 kglcm 2 (11-15 psi) COOLING
SYSTEM
TESTIER

System Pressure COOLING SYSTEM

Pressurize the radiator, engine, and hoses. Check for
leaks.

CAUTION
<> Excessive pressure can damage the radiator. Do
not exceed 1.05 kg/cm:.! (15 psi).

Repair or replace components if the system will not hold

the specified pressure for at least six seconds.

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 Cooling System
Coolant Replacement

----------
"To avoid the chance of scalding yourself,
replace coolant only when the engine is cool.
Never remove the radiator cap when the engine
is hot; the coolant is under pressure.
~--------

Remove the radiator cap.

Remove the drain plug. Drain the coolant. SEALING WASHER

Replace the drain plug sealing washer with a new one.
Remove the coolant reserve tank (see page 5-12). Empty
and rinse the tank, then reinstall it. Connect the siphon
tube.

_l....-
" Flushing compounds are usually highly toxic
_ DRAIN PWG

and corrosive. Follow the manufacturer's instruc m

tions carefully and observe all precautions.

Fill the radiator with a flushing compound for aluminum

engines. Install the radiator cap, start the engine, and let it
run for 10 minutes. Drain the radiator folloWing the origi-
nal steps.
Fill the radiator with plain water. Run the engine, then
drain it following the original steps. Do this twice to ensure
RESERVE TANK
that all flushing compound is rinsed out of the system.
Fill the system with a 50-50 mixture of distilled water and
RESERVE TANK DIPSTICK
ethylene glycol antifreeze.
Start the engine with the radiator cap off and run until
there are no air bubbles in the coolant and the coolant
level stabilizes.
Stop the engine and add coolant up to the proper level, if
necessary. Install the radiator cap.
Check the reserve tank and fill to the correct level if the UPPER
LEVEL
level is low.
Check for leaks. !.DWEll
LEVEL

5=8
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 Removal
Remove the following:
.. radiator shroud (see page 13-11).
.. fairing front cover (see page 13-11).
.. fairing lower covers (see page 13-12).
Drain the coolant (see previous page). Disconnect the
thermostatic fan motor switch connector.
I: Remove the bolt and collar.
L . __ J
A & SE: Remove the bolt and auto cruise accumulator. AUTOCRU!SE
AC:CUIIIIIULATO~
All models: Release the radiator boss from the frame
rubber hole.
Disconnect the radiator water hoses (3 connections) and
remove the left radiator from the frame.

CAUTION
.. Be careful not to damage the radiator fins.

Remove the radiator mounting bolt and collar.

Release the radiator boss from the frame rubber hole.
Disconnect the radiator water hoses (3 connections) and
remove the right radiator from the frame.

5..9
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 Cooling System
Radiator (cont'd) " , , , - - - - - - - - - - - - - - - - - - - - - - - -

Installation
Install the radiator in the reverse order of removal.

®
RIGHT
RADIATOR ~ 2 N-m 10.2 itg-m,
TO: ~.4ft-lb)
WATER

A\f1@
LOWER WATER HOSE ~ /
i
~~
THERMOSTATIC ~~
fAN MOlOR
SWITCH VACUUM
28 N-m 12.8 itg-m, 20 ft-ibl ACCUMUl.AlOR

CAUTION
m Make sure the clearance between the radiator
and cooling fan shroud is 4 mm (0.16 in) max. all
the way around. An improper clearance will
cause the system to lose cooling power. To get
the specified clearance, loosen the cooling fan
shroud bolts and reset the cooling fan properly.

After installation, perform a system pressure check (see

page 5-7) to test the radiator for leakage.
Fill the system with coolant and bleed air from the radiator
(page 5-8).

5-10
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 Cooling Fan
Removal
Remove the radiator mounting bolt. Release the radiator
under boss from the frame rubber hole (see page 5-9).

NOTE
.. Do not drain the coolant or disconnect the water
hoses.

Disconnect the 2P-BLK connectors and remove the con-

nector holder from the shroud.
Remove the junction box (section 4).
Remove the cooling fan mounting bolts and collars.
Release the shroud under boss from the frame rubber
hole and remove the cooling fan.

Disa$sembly
Remove the screw, collar and noise filter from the shroud.
Remove three screws, collars and fan motor bracket from
the shroud.

SCREW

I
COI.I.AR-~
...
Remove the nut, fan and washer from the fan motor.

WASHER
NUT

~--

5.. 11
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 Cooling System
Cooling Fan (cont'd)
Fan Motor Inspection
Use a 12 V battery to energize the motor and check its
operation. The motor should run freely.

Assemblyllnstallation
CAUTiON
" Make sure the clearance between the radiator
and cooling fan shroud is 4 mm (0"16 in) max.
(see previous page)"
" Do not exchange the left motor for the right
Each motor rotates in a reverse direction"

BATTERY

Reserve Tank
Removal
Remove the ignition coil stay mounting bolts. Move the
coil down out of the way (see page 16~8, Ignition Coil
Removal).
Disconnect the reserve tank breather tube and siphon
tube.
Plug the siphon tube (as shown below) to prevent the
coolant from flowing.
Remove the reserve tank mounting bolt and collar.
RESERVE TANK
Remove the reserve tank.

Installation
Install the reserve tank in the reverse order of removal. C--- PWG
NOTE
" Align the reserve tank bosses with the frame holes.

5=12
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 Thermostat, Carburetor Coolant Thermal Valve, Water lines

Thermostat Removalllnspectiol1
THERMOSTAT
Drain the coolant (see page 5-8). COVER

Remove the radiator (see page 5-9).

Disconnect the upper water hose from the thermostat
cover. Remove the three bolts and the thermostat cover
and O-ring.

Remove the thermostat from the thermostat housing.

Visually inspect the thermostat for damage.

Suspend the thermostat in heated water and watch for

valve opening and closing. Use an electric heating ele-
ment to heat the water.

.. Keep flammable materials away from the electric

heating element.
.. Wear insulated gloves and adequate eye prom
tection.

Be sure the thermostat does not touch the bottom or

sides of the container. Any contact can produce false
readings. Apply heat for five minutes.
Starts to open: 80 84° C (116 183° F)
m m

Full open: 93 - 91° C (199 - 200° F)

Valve lift: 8 mm (0.31 in) minimum
Replace the thermostat if the valve responds to tempera-
tures other than those listed above, or if it stays open at
room temperature.

Water line Removal

Remove the radiators (see page 5-9).
Remove the upper water hose, lower water hose, and
left- right radiator bypass tube.

5-13
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 Cooling System
Thermostat, Carburetor Coolant Thermal Valve, Water lines (cont'd)

Remove the water pump hose and water pipes.

Inspect the O-rings for damage or deterioration.
Remove the carburetor (see page 4-19) and intake
manifolds (see page 4-37).
Remove five bolts, intake air shot air valve, water pipes,
carburetor coolant thermal valve, and the thermostat
housing from the engine.
Inspect the pipe O-rings for damage or deterioration.
Inspect the water hoses for damage or deterioration.
Inspect the carburetor coolant thermal valve (see next
page).

Carburetor Coolant Thermal Valve

THERMOSTAT
Inspection HOUSING CARBURETOR COOLANT
THERMAL VALVE
Visually inspect the carburetor coolant thermal valve
inport (golden color side).
Connect a pressure tester to the tube as shown.
Suspend the carburetor coolant thermal valve com-
pletely in water heated by an electric heating element.

" Keep flammable materials away from the electric

heating element.
.. Wear insulated gloves and adequate eye prom
tection.
WATER PIPES

Be sure the carburetor coolant thermal valve does not INTAKE AIR
SHOT AIR
touch the bottom or sides of the container. Any contact VALVE
can produce false readings.
Apply a light pressure to the carburetor coolant thermal
valve.
Valve Starts to Close: 18-82° C (112~100° f)
California Model: 58 62° C (136w144° f)
w

Replace the carburetor coolant thermal valve if the

passage is blocked at a temperature lower than those
listed above, or if there is no restriction at a temperature
higher than those listed.

5-14
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 Installation
To install, reverse the removal procedure.
NOTE
@ Apply a sealant such as Honda Silicone Liquid
Gasket to the temperature sensor threads before
installation.
@ Install the carburetor coolant thermal valve so that
its silver side is connected to water hose A. CARBURETOR
o Install the water hoses properly as shown. COOLANT
----~",,-......_"••-.~. " THERMAL TO CARBURETOR
VALVE

SILVER SIDE
TO INTAKE MANIFOLD ~.//\
"'-."~~g"J..----
~~- '
WATER HOSE D
c::Y 0 \

.'. " WATER HOSE C

WATEF! HOSE E - - -

WATER HOSE F -~-

~ ~
!i (iI'
~~
0 "

J V
"THERMOSTAT ~COOLANTTEMPERATURESENSOR
_ TO WATER PUMP 12 N.m (1.2 kg-m. 9 ft-I!»)

Water Pump ---------~-=---------

Mech~nic~1 Se~1 Inspection

Inspect the telltale hole for signs of mechanical seal coolant
leakage.

Replace the water pump as an assembly if the mechanical

seal is leaking.

TELlTAlE HOLlE (BOTTOM

OF THE WATIER PUMP BODY)

Remove the under cover (see page 13-11).

Drain the engine oil (see page 3-13).

Drain the coolant (see page 5-8).

Disconnect the radiator lower hose and water hoses F

and G from the water pump cover.

Remove the four bolts and water pump cover from the
body.

5-15
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 Cooling System
Water Pump (ccmt'd)
Disconnect the water pump hose from the water pump
body.
Remove the pump body from the engine.

Inspection
Check the water pump rotor for damage.

NOT,,;;;;;E~~~~_
.. Do not disassemble the pump rotor.c~ _

Instcnllcntion
Install a new O-ring to the pump body.
Install the pump body onto the engine, aligning the water
pump rotor shaft slot with the oil pump shaft.

Install a new O-ring onto the pump cover.

Connect the water pump hose and install the water pump
cover to the pump body.
Connect the radiator lower hose and water hoses F and G
to the water pump cover (see page 5-15).

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 Coolant Temperature Sensor/Gauge
Temperature Gauge Inspection
Remove the left cooling fan (see page 5-11).
Disconnect the coolant temperature sensor GRN/BLU
wire terminal. Short the GRN/BLU wire to ground. Turn
the ignition switch to ON.
The temperature gauge should move all the way to the
right (H) side. Upon opening the wire, the gauge should
move all the way to the left side (C).

CAUTION
"Do not leave the temperature sensor wire
grc'Hmded for longer than a few seconds, or the
temperature gauge will be damaged.

Temperature Sensor Removal

Drain the coolant (see page 5-8).
Remove the left radiator and left cooling fan.
Disconnect the GRN/BLU wire terminal from the temper-
ature sensor.
Remove the temperature sensor from the thermostat
housing.

Temperature Sensor Inspection

Suspend the unit in oil and measure the resistance
through the unit as the oil heats.

--_
Use an electric heating element to heat the oil.

heating element
.. _---------
" Keep flammable materials away from the electric

" Wear insulated gloves and adequate eye prOm

tec:tion.

Temper-
ature
Resis-
tance

Do not let the unit or thermometer touch the pan. Contact

can cause false readings.

NOTE
" Oil must be used as the heated liquid to check opera-
tion above 100° C (212° F).

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 Cooling System
Thermostatic Fan Motor Switch
Temperature Sensor Installation
Install the sensor in the reverse order of removal.

NOTE
@ Apply a sealant such as Honda Silicone Liquid Gas-
ket to the temperature sensor threads before installa-
tion and tighten the sensor to the specified torque.

Inspection
Remove the fairing front cover (see page 13-11).
Disconnect the BLK wire terminal from the thermostatic
fan motor switch. Short the BLK wire to ground. Tum the
ignition switch to ON. The fan motor should work.
Drain the coolant (see page 5-8).
Remove the fan motor switch and a-ring from the left
radiator.
Suspend the switch in a pan of coolant (50-50 mixture)
and check the temperatures at which the switch opens
and closes. Use an electric heating element to heat the
cc,olant.

@ Kt*lp flammable materials away from the electric

heating element
@ Wear insulated gloves and adequate eye pro-
tection.

Make sure that there is no switch continuity at room

temperature and gradually raise the coolant tempera-
ture. The switch should have continuity (close) at
98-102° C (208-216° F).

NOTE
-------"_.,,_._,,_.~.,,----~ _--~--_._,,.~- ..
o Keep the temperature steady for three minutes
before testing continuity. A sudden change of temper-
ature will cause an error in temperature readings
between the thermometer and the switch.
@ Do not let the thermometer or switch touch the pan as
it will cause a false reading.
(\) Place the switch in coolant up to its threads.
~_._~ • "_m"_,,_ _..._ ...
_"~,,._. _

Install the thermostatic fan motor switch with a new

a-ring and tighten it to the specified torque.
Torque: 28 N-m (2.8 kg-m, 20 ft-Ib)

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 Engine RemovalJlnstaliation
Service Information m 6..2
Engine Removal 6..4
Engine Installation 6..6

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 Engine Removalllnstallation
Service Information
o Parts requiring engine removal for servicing.
- oil pumps (Section 8).
- alternator drive gears, primary gears and output shaft (Section 17).
.- gearshift arm (Section 10).
- transmission (Section 10).
-- crankshatvpiston (Section 8).
-starter clutch and reverse shift system (Section 18).
@ A floor jack or other adjustable support is required to support and maneuver the engine.
o Engine Dry Weight
I: 124 kg 273 Ibs
A&SE: 126 kg 278 Ibs
" The right timing belt cover, right intake manifold, and alternator are removable to ease engine removal.

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 Torque Values
Engine mount nut (10 mm) (7 pcs) 40 N-m (4.0 kg-m, 29 ft-Ib)
Engine bracket bolt (8 mm) (4 pcs) 25 N-m (2.5 kg-m, 18 ft-Ib)
Subframe bolt (10 mm socket bolt) 40 N-m (4.0 kg-m, 29 ft-Ib)
(10 mm flange bolt) 40 N-m (4.0 kg-m, 29 ft-Ib)
( 8 mm flange bolt) 25 N-m (2.5 kg-m, 18 ft-Ib)
Exhaust pipe joint cap nut 10 N-m (1.0 kg-m, 7 ft-Ib)
Engine oil drain bolt 38 N-m (3.8 kg-m, 27 ft-Ib)

6..3
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 Engine Removalllnstallation
Engine Removal
Disconnect the battery negative cable. Drain the coolant RIGHT SIDE:
(see page 5-8).
Drain the engine oil before removing the engine if the
front, rear or clutch cover is to be removed.
Remove or disconnect the following:
@ fairing inner covers (Section 13)
o under cover (Section 13)
" 6P-BLK, 4P-WHT, 6P-RED and 2P-BLU connectors
of the connector holder on the right cooling fan
" A & SE only: reverse cables from the shift arm (Section
18)
" A & SE only: reverse switch wire from the switch
(Section 18)
" engine ground cable near dipstick LEFT SIDE:

" starter motor (Section 18)

o cooling fans (Section 5)
o engine guards
" exhaust pipes (Section 7)
" spark plug wires
" right timing belt cover (for added clearance)
" horn wire terminals
" alternator (Section 17)
o clutch slave cylinder (Section 9)
ENGINE GUARD

NOTE
" Squeeze the clutch lever once and keep it in this posi··
tion by tying it to the handlebar grip. This keeps the
slave cylinder piston from overextending.

o air cleaner housing and carburetor (Section 4)

o right intake manifold (Section 4)
" radiator upper hose from the thermostat case cover
(Section 5)
" air tubes from the solenoid valves and air jet controller
(Section 4)
" vacuum tubes from the solenoid valves and air jet
controller (Section 4)
" crankcase breather tube from the engine
" temperature sensor wire and ground wire from thermo-
stat case (Section 5)
" radiator lower hose from the water pump cover
(Section 5)

6=4
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 left side: SIDE STAND SWITCH
COVER
Remove the side stand switch cover.
Remove the cotter pin, washer, step pin, spring and left
step from the subframe.

\~ _ _~ WASHER
@('

SPRlNG~
COTTER PIN

Place a floor jack or other adjustable support under the FRONT/UPPER BOLT
engine. \
~
NQ!~E ",,,~,,,,_,,_,_, . _
.. The jack height must be continuously adjusted so that
mounting bolts can be removed, and so stress is
relieved from other bolts until they are removed.
"._,-,,-"'------'''-'''.~---,,-,._''''-''''''---

Right side:
Remove the front lower and rear lower engine mounting
bolts.
Remove the front upper engine mounting bolt. FRONT
BRACKET UPPER
Disconnect the side stand switch 3P",GRN connector, BOLTS BOLT
and remove the subframe socket bolts and subframe. REAR
UPPER
Remove the front upper engine mounting bolt, bracket BOLT
bolts, and front bracket.
Remove the rear upper engine mounting bolt, bracket
bolts, and rear bracket.

Slide the universal joint out of the output shaft.

6-5
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 Engine Removall1nstallation
Engine Removal (cont'd)

Move the engine out of the frame.

@ Be careful not to damage the brake and clutch

lines during engine removal.

Engine Installation
Installation is essentially the reverse order of removal.
Lubricate the output shaft splines with molybdenum
disulfide grease
Carefully maneuver the engine into the frame while
aligning the output shaft with the universal joint.

@ Be careful not to damage the brake and clutch

lines during engine installation.

Slide the output shaft back into the universal joint.

--.~_...._...._..... __. _ - - -
@ Carefully align mounting points with the jack to
prevent damage to mounting bolt threads, wire
harnesses and cables.

Hand-tighten mounting bolts and nuts (and install parts

noted) in this order.
1. Right: rear lower and front lower mount bolts and
nuts.
2. Right: front upper mount bolt and nut.
3. Left: front and rear bracket and bracket bolts,
including the cruise actuator.
4. Right: rear upper mount bolt and nut with collar.
5. Left: front upper mount bolt and nut.
6. Left: subframe and subframe socket bolts.
7. Right: subframe bolt.
8. Right: engine guard and bolts.
9. Left: rear lower and front lower mount bolts and
nuts.

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 Remove the jack, and torque the bolts and nuts in the
sequence as shown.
1. 40 N-m (4.0 kg-m, 29 ft-Ib) (4 pes)
2. 40 N-m (4.0 kg-m, 29 ft-Ib)
3. 25 N-m (2.5 kg-m, 18 ft-Ib) (3 pes)
4. 40 N-m (4.0 kg-m, 29 ft-Ib)
5. 40 N-m (4.0 kg-m, 29 ft-Ib)
6. 40 N-m (4.0 kg-m, 29 ~-Ib)
I'. 40 N~m (4.0 kg-m, 29 ft-Ib)
8. 25 N-m (2.5 kg-m, 18 ft-Ib) (4 pes)
9. 40 N-m (4.0 kg-m, 29 ft-Ib)
10. 40 N-m (4.0 kg-m, 29 ft-Ib)
11. 40 N-m (4.0 kg-m, 29 ft-Ib)

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 linder HeadlExhaust System
Service Information """"" 7..2
Troubleshooting """""""" 7..3
Timing Belt Removal .. "" 7""4
Camshaft/Rocker Arm
Removal .. " "... 7..6
Camshaft Holder
Disassembly .. ".".".. 7""8
Cylinder Head
Removal .. " ..... ".... 7",10
Cylinder Head
Disassembly 7""11
Valve Guide
Replacement .. "." .. ". 7..13
Valve Seat Inspection!
Refacing ." .. " 7""14
Cylinder Head
Assembly 7..17
Camshaft Holder
Assemblyllnstallation .. 7""19
Timing Belt
Installation "... 7..22
Hydraulic Valve Adjuster
Shim Selection 7..24
Exhaust PipelMuffler 7..28

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 linder HeadlExhaust System
Service Information -,~'''-,,-~~~~~~~-=~~~-

" Inspect and adjust timing belt tension while the engine is cold.
" Cylinder head maintenance and inspection can be done with the engine in the frame.
" Camshaft lubricating oil is fed to each cylinder head through an oil control orifice located in the engine case. Be sure
these orifices are not clogged and that the a-rings and dowel pins are in place before installing the cylinder heads.
" Do not contaminate the timing belts with oil. Oil will cause the rubber to swell and affect the camshaft timing.
" Do not twist the belts or bend to a radius of less than 25 mm (1 in), to avoid possible fracture of the fiberglass
material.
" Air in the hydraulic valve adjuster causes excessive tappet noise.
Remove the adjuster and bleed the air, if necessary (see page 7-10.)
" Adjust the hydraulic adjuster holder with a shim, if any of the following parts are replaced:
- Cylinder head/camshaft holder - Valve/valve seat (refacing)
- Camshaft - Rocker arm/rocker arm shaft

26N-m
(2.7 kg-m,
20 ft-II.»

27 N-m
(2.7 kg-m,
20 ft-Ib)

20N-m
(2.0 kg-m,
14 ft-Ib)

12 N-m
(1.2 kg-m,
9 ft-Ib)

Torque Values
Cylinder head bolt (9 mm bolt) 45 N-m (4.5 kg-m, 33 ft-Ib)
Timing belt driven pulley bolt 27 N-m (2.7 kg-m, 20 ft-Ib)
Camshaft holder bolt 20 N-m (2.0 kg-m, 14 ft-Ib)
Hydraulic valve adjuster stopper plug 30 N-m (3.0 kg-m, 22 ft-Ib)
Cylinder head cover bolt 12 N-m (1.2 kg-m, 9 ft-Ib)
Timing belt tensioner bolt 26 N-m (2.6 kg-m, 19 ft-Ib)

7=2
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 Troubleshooting
Engine top-end problems can be diagnosed by a compression test, or by tracing noises with a sounding rod or
stethoscope.
Low compression or uneven compression: Excessive noise:
@ Valves @ Hydraulic valve adjuster
- Sticking hydraulic valve adjuster - Air in hydraulic valve adjuster or improper installa-
-Incorrect hydraulic adjuster shim tion
-Incorrect valve clearance -- Worn or sticking adjuster
- Burned or bent valves -_. Clogged cylinder head oil holes or orifices
.._. Incorrect valve tirning - Loose adjuster stopper plug
- Sticking valve -_.. Use of improper shim
- Broken valve spring " Worn valve stem
@ Cylinder head " Sticking valve or broken valve spring
- Leaking or damaged head gasket @ Damaged rocker arm, needle bearing, eccentric
spindle, or shaft
- Warped or cracked cylinder head
" Loose or damaged timing belt
e Camshaft
" Loose or damaged belt tensioners or drive pulleys
- Worn or damaged timing belt
" Worn or damaged camshaft
- Loose pulley or drive key
@ Damaged cylinder head gasket
- Worn or damaged belt tensioner pulley
" Loose spark plug
<> Engine lower end problems (see section 8)

Compression too high: Contaminated engine 011 or coolant:

9 Leaking or blown head gasket
o Excessive carbon build-up on piston or combustion
chamber $ Leaking core plugs
@ Damaged or warped cylinder head
Excessive white smoke:
e Worn valve guide or valve stem
@ Damaged valve stem seal

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 linder HeadlExhaust System
Timing Belt Removal

" The top end can be repaired with the engine in the
frame.

Remove the fairing front cover and under cover (see

page 13-11).
Remove the timing belt covers.

Turn the crankshaft counterclockwise until the T1-2 drive

pulley mark lines up with the index mark on the engine
case. The "UP" marks on the driven pulleys should be
facing up.

Mark each belt to identify it as "left" or "right" and to show

its direction of rotation.

NOTE
" If the cylinder head will be removed, loosen the driven
pulley bolts temporarily before removing the timing
belts.

Loosen the tensioner bolts, then slip off the right belt.
Remove the ignition pulse generators.
Slip off the left belt.

CAUTION
" To prevent belt damage, do not use a screw-
driver or ()ther sharp tool to pry off the belts.
" Do not tum the camshafts after removing the
timing belts, or you may bend the valves.

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 Belt inspection WORN BELT TOOTH
Check the belts for swelling caused by oil contamination.
Replace the belts if the material is cracked, teeth are
worn, or if swelling is evident.

Inspect the belt plies for separation.

Inspect the belt tensioners for free movement and

smooth bearings.

Check the tensioner spring for fatigue or damage.

Remove the driven pulley bolt, washer, and the pulley.

Tool:
Universal holder
07725 - 0030000

CAUTION
" lJo riot tum Ul® camshaft when removing th®
driv®rI pulley belt, or you
="->..,.",,,--,,,,,, ..
may b®nd the valves.
,,,,,,,,,,,-,,.,,-=--,,,,,,,,,,,,,,,,,,,,--==

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 Cylinder HeadlExhaust System
Timing Belt Removal (cont'd) .~=,=,,,----~._~=,,,,~.~_
.._,,,,,-~,,,,--,_.,,-=--

Remove the shield cover and the gasket.

SHIELD COVER

CamshaWRocker Arm Removal

Remove the engine guard (see page 6-4).
Remove the rear cylinder head covers and the gaskets.

Remove the cylinder head cover.

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 Remove the timing belt and driven pulley (see page 7-4).
Remove the eight camshaft holder bolts.

NOTE
@ To prevent cocking the camshaft holder assembly,
gradually unscrew the camshaft holder bolts in a
crisscross pattern in two or three steps.

Remove the camshaft holder assembly. Mark the cam-

shaft holder as "left" or "right".

Remove the camshaft, oil seal, and end seal.

CAUTION
- - _.._---
@ Do not let the camshaft fall OLit of the cylinder
head.

Remove the dowel pins.

Inspect the camshaft holder bearing surfaces for scoring,
scratching or damage. Check that the oil passages are
clear.

Camshaft Inspection
Bolt the camshaft holder in place and torque the bolts.
Torque: 20 Nmm (2.0 kg-m, 14 ft-Ib)
Measure and record the 1.0. of each bearing. If the bear-
ing is worn past the service limit, install a new cylinder
head and camshaft holder set.
Service limit: 27.05 mm (1.065 in)

Measure and record the 0.0. of each camshaft bearing

journal. Install a new camshaft if worn past the service
limit.
Service Limit: 26.91 mm (1.059 in)
Determine the bearing clearance by subtracting the
journal 0.0. from the bearing 1.0.
Service limit: 0.14 mm «).O06 in)

NOTE
G Clearance may also be checked by using Plastigauge.

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 Cylinder HeadlExhaust System
Camshaft/Rocker Arm Removal (cont'!:!)

Check each cam lobe's height with a micrometer.

Replace the cam if the height is less than the service limit.
Service limit: 35.9 mm (1.41 in)

Rest each camshaft on V blocks.

Place a dial indicator on each of the inner bearing jour-
nals. Rotate the camshaft two revolutions and read the
runout.
Divide the total indicator reading in half to get the actual
runout.
Service limit: 0.10 mm (0.(J04 in)

Camshaft Holder Disassembly

" Mark the camshaft holder parts during disassembly

so they can be installed in their original positions
during assembly.
.~
. _~""~,,.'~. _~"m""~~~~"m._~,,·.·"~_""'_~~''"·'''''''_·· _

Remove the stopper plugs and shims from the camshaft

holder.
If the parts are to be reused, mark the shims with a felt tip
pen so that they can be replaced in their original locations.

NOTE
" Failure to install the shims in their original locations
can cause tappet noise or sticking valves.
" Mark the hydraulic valve adjusters as they are
removed, so they can be installed in their original
locations.

Remove the six hydraulic valve adjusters from the

camshaft holder.
NOTE
" Caps are used only on the hydraulic valve adjusters
controlling the intake valve rocker arm lobes.
.~~~~-

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 Remove the following:
@ rocker arm shafts
@ rocker arms
@ rocker arm eccentric spindles (lobes)
@ needle bearings

Rocker Arm Shaft Inspection

Inspect each rocker arm shaft for wear or damage to the
sliding surfaces.
Measure the 0.0.
Service limit: 11.95 mm (0.410 in)

Rocker AnnJEccerotric Spindle Inspection

Inspect each needle bearing for wear or damage. ECCENTRIC SPINDLE

Inspect each rocker arm for wear or damage to the slipper

and stem contact faces. Measure the 1.0. of each rocker
arm.
Service limit: 25.05 mm (0.986 in)
I
Inspect each rocker arm eccentric spindle for wear or
damage to the sliding and adjuster contact faces. Measure
the 1.0. and 0.0. of each rocker arm eccentric spindle.
NEEDLE BEARING
Service limits:
1.0.: 12.01 mm (0.475 in)
0.0.: 20.93 mm (0.824 in)
ADJUSTER

Hydraulic Valve Adjuster Inspection

Inspect the hydraulic valve adjuster for wear, damage or
a clogged oil hole.
CAP (INTAKE ONLY:
Inspect the adjuster cap of the intake side for wear or
damage. /

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 Cylinder Head/Exhaust System
Camshaft Holder Disassembly (cont'd)
Measure the compression stroke of each adjuster as
follows:
Attach the Hydraulic Tappet Bleeder to the adjuster,
center the bleeder pin, and while holding it upright, com-
press and extend the bleeder slowly in a jar filled with
kerosene.
Tool:
Hydraulic tappet bleeder
07973-MJOOOOO
Continue operating the bleeder until there are no air
bubbles.

Remove the adjuster and try to compress it quickly by

hand. Measure the compression stroke with a dial gauge.
Compression Stroke Service limit:
0.30 mm (0.012 in)
If the stroke is more than the seNice limit, repeat the
bleeding procedure.

HYDAAUIJC
VALVE ADJUSTEFI ~

Cylinder Head Removai

Drain the coolant (see page 5-8).
Remove the following:
o timing belt and driven pulley (see 1-4)
o cylinder head cover, camshaft holder, and camshaft
(see page 7-6)
o exhaust pipe (see page 7-28)
" spark plug wires
Support the intake manifold with bungee cords as shown
and remove the intake manifold mounting bolts and
gasket.

Remove the following:

o pulse secondary air injection pipes (see page 4-56)

" cylinder head bolts

" cylinder head

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 e gasket
e dowel pins

Remove the oil control orifice from the cylinder head.

Clean the oil passage.

Cylinder Head Disassembly

Compress the valve spring and remove its keepers.
Remove the retainers, springs, and valves. Keep each
valve and its related parts in sets.
Tool:
Valve spring compressor
07757-0010000
Clean any gasket material from the cylinder head.

Cylinder Head Inspection

Clean carbon deposits from the combustion chamber
and exhaust ports.
Check the spark plug holes and valve areas for cracks.
Check the cylinder head for warpage with a straight edge
and feeler gauges.
Service limit: 0.10 mm (0.()04 in)

7..11
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 Cylinder HeadlExhaust System
Cylinder Head Disassembly (cont'd)
Check the cylinders for warpage across the head mating
surface.
Service limit: 0.10 mm (0.004 ill)

Valve Spring Inspection

Measure the valve spring free length.
Service limit: 43.3 mm ("1.70 ill)

Valve and Guide Inspection

Clean the intake and exhaust valves thoroughly to
remove carbon deposits.
Inspect each valve for bending, scratches or abnormal
stem wear.
Measure and record the 0.0. of each valve stem.
Service limits:
In: 5.45 mm (0.215 ill)
Ex: 5.44 mm (0.214 ill)

Run the proper reamer ttlrough the guides to remove

carbon deposits from the combustion side of the cylinder
head.
Tool:
Valve guide reamer, 5.5 mm
07984~200000C or 07984~200000D

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 Measure and record the 1.0. of each valve guide.
Service limit: 5.55 mm (0.219 in)
Subtract the valve stem 0.0. from the valve guide 1.0. to
determine the clearance.
Service limits:
In: 0.08 mm (0.003 in)
Ex: 0.10 mm (0.004 in)
If the clearance is over the service limit, install new guides
and remeasure. If clearance is still over the service limit,
replace the valves.

Valve Guide Replacement

NOTE
o Reface the valve seats whenever the valve guides
_._._ are replaced.
. . ~ - ~ ''~--"-~--'---"--'-"'~._-

Measure the valve guide height.

Chill the replacement valve guides in the freezer section
of a refrigerator for about an hour.
Heat the cylinder head to 275-290°F (130-1 40°C) with a
~lot plate or oven. Do not heat the cylinder head beyond
300 0 F (150° C). Use temperature indicator sticks avail-
able from welding supply stores, to be sure the cylinder
head is heated to the proper temperature.
CAUTiON
@ Do not use a torch to heat the cylinder head; it
may cause warping.
@ To avoid bums, wear heavy gloves when handling
the heated cylinder head.

Drive out the old guides from the combustion chamber

side of the cylinder head.
Tool:
Valve guide driver, 5.5 mm
07742-0010100
Drive in new guides from the rocker arm side of the
cylinder head while measuring the valve guide height.
Standard Valve Guide Height:
13.3-13.5 mm (0.72-0.73 in.)
NOTE
@ The cylinder head should still be hot for installation of
the new guides.

Tool:
Valve guide driver, 5.5 mm
07742-0010100

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 Cylinder Head/Exhaust System
Cylinder Head Disassembly (ccmt'd)
Ream the new guides to finished size with a reamer from
the combustion side of the cylinder head.
Tool:
Valve guide reamer, 5.5 mm
07984-200000B or 07984-200000C

NOTE
.. Use cutting oil on the reamer during this procedure.
While inserting or removing the reamer, turn it in the
cutting direction.

Clean all cutting residue out of the valve guides.

Valve Seat InspectionlRefacing

NOTE
.. Check hydraulic valve adjuster shim selection when-
ever the valve seats are refaced.

Apply a light coating of Prussian Blue to the valve face,

then install the valve and lap it against its seat.

Remove the valve and inspect the face. If the seat is too
wide, too rough, or has low spots, the seat must be
refaced.

CAUTION
.. The valves cannot be ground. A valve must be
replaced if its face is rough, worn unevenly, or
contacts the seat improperly.
""",,~-,,--,,~~~~-- STANDAIU) VALVE
SEAT WIDTH:
1.2 mm (0.05 inl

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 Follow the refacer manufacturer's instructions. Use a 45
degree cutter to remove any roughness or irregularities
from the seal.
' " OLD SEAT WIDTH
NOTE
----------,,---
o Reface the seat with a 45 degree cutter when the
valve guide is replaced .
._--------
Use a 30 degree cutter to remove 1/4 of the existing valve
seat material.

Use a 60 degree cutter to remove the bottom 1/4 of the

old seat. Remove the cutter and inspect the area you
have just removed.

Install a 45 degree finish cutter and cut the seat to the

proper width.
Valve Seat Width: 1.2 mm (0.05 in)

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 linder HeadlExhaust System
Valve Seat InspectionlRefacing (cont'd)
Apply a light coating of Prussian Blue to the valve face,
then install the valve and lap it against its seat. Remove
the valve and inspect the face.

NOTE
.. The location of the valve seat in relation to the valve
face is very important for good sealing.

If the contact area is too high on the valve, the seat must
be lowered using a 30 degree flat cutter.

If the contact area is too low on the valve, the seat must
be raised using a 60 degree inner cutter. CONTACT' 1"00 lOW

Refinish the seat to specifications, using a 45 degree

finish cutler.
Apply a light coating of valve lapping compound to the
valve face. Lap the valve and seat, using a rubber hose or
other hand~lapping tool.

.. Do not allow lapping compound to enter the

valve guide. After lapping, wash out the com~
pound completely and coat the valve face and
seat with engine oiL

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 Install a new valve seal on each valve guide.

NOTE
@ Replace the stem seals with new ones whenever a
stem seal is removed.

Lubricate each valve stem with molybdenum disulfide oil.

CAUTION
@ To avoid damage to the stem seals, tum each
valve slowly when inserting.
="-_-,.-.."'="'===,,....=''''''''"w.... .. ..
,~ '.~ =.,.,.,·~,=, ..
'.w=~... ~~.,.,.,~,="'~"=,,,~.=c ..... ..
~,._ _""',

Install the following:

@spring seats
" valves
@springs
@retainers
Compress the valve spring and install the keepers.

CAUTION
" To prevent loss of tension, do not compress the
valve spring amy more than
..=.»""........
,,~~="',,·_== .....
necessary. ••,<m'=__
·m=·.·.=-c="'='.,'.'.=w·,.~,=_~~._ ="'"="...=,,,,,,.,,,,,,=,==-...
,,=,,,,_,,~,.,,=,=.·m= ·""'~

Tool:
Valve Spring Compressor
0775"7-0010000

Tap the top of each valve with a plastic hammer to seat

the keepers.

CAUTiON

Cylinder Head installation

Clean any gasket material from the engine block, and
check that all oil and water passages are clear.
Install the oil control orifice.

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 linder HeadlExhaust System
Cylinder Head Assembly (cont'd)
Install dowel pins and head gasket.

Check that the T1.2 drive pulley mark lines up with the
index mark on the engine case at the No. 1 and No. 2
pistons TDC.
Turn the crankshaft 40 degrees clockwise to lower the
NO.1 and NO.2 pistons 10-15 mm (0.4-0.6 in) from the
cylinder top surface.

NOTE
----~

<> This will reduce the possibility of bending during

engine assembly.

Install the cylinder head and the head bolts, making sure
the coolant pipe and a-ring are installed correctly (see
page 5-14).

NOTE
<> Coat the 9 mm bolt threads and flange surfaces with
molybdenum disulfide oil.
<> The 9 mm bolts have the washers.

First, gradually torque the eight 9 mm bolts in a crisscross

pattern. Then torque the single 6 mm bolt.
Torque: 9 mm bolts 45 N-m (4.5 kg-m, 331Nb)

Install the pulse secondary air injection pipes (see page

BUNGEE CORDS
4-58).
Position the gasket.
Install and tighten the intake manifold mounting bolts
securely.
Release the bungee cords from the manifold.

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 Camshaft Holder Assemblyllnstallation
Assemble the rocker arm shafts, rocker arms and
rocker arm eccentric_spindles in their correct loca-
tions by referring to the identification marks made
during disassembly.

ROCKER ARM SHAFT

CAMSHAFT HOLDER

ROCKER ARM
ECCENTRIC
SPINDLE

INTAKE VALVE NEEDLE BEARING

ADJUSTER

Clean the camshaft holder thoroughly. Blow through all

holes and passages with compressed air.

Lubricate all sliding surfaces with molybdenum disulfide

oil. ECCENTRIC SPINDLE

NEEDI E YARING \

tD g 0

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 linder HeadlExhaust System
Camshaft Holder Assemblyllnstallation (cont'd)

Install the following:

" rocker arms
" needle bearings
@ rocker arm eccentric spindles
.. rocker arm shafts

NOTE
" The shaft of the intake side has a yellow painted
mark.

CAUTION YELLOW PAINTED ("I" SIDE)

" Do not drop the rocker arm shafts or attempt to

drive them into position. Rotate the shafts while
sliding them into position.
,---------
Align the rocker arm shaft cutouts with the bolt holes in
the camshaft holder and also align the cutouts of the
rocker arm shafts and camshaft holder.
Install each hydraulic valve adjuster in sequence with its
rocker arm lobe, in the same bore it came from.

NOTE
" Only the intake hydraulic valve adjusters have caps.
The caps go against the rocker arm lobes.
" Shim adjustment is necessary if the following parts
are replaced:
- Cylinder head and camshaft holder.
- Camshaft.
- Valves or refaced valve seats.
-- Rocker arm or shafts.

For shim selection, see page 7-24.

Tighten the stopper plugs.
Torque: 30 N~m (3.0 kgwm, 22 ft~lb)
EXHAUST
VALVE ADJUSTERS

Lubricate the camshaft journals and cam lobes with

molybdenum disulfide oil. "l" MARK

NOTE
.. An "R" mark appears on the right side camshaft; an
"L" mark appears on the left side camshaft.

"R" MARK

7",20

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 Install the oil seal and cap on the ends of the camshaft.
Coat the outer edges of the oil seal and end cap with
sealant.
Lay the camshaft in the cylinder head, aligning the front
keyway with the cylinder-head/head-cover mating sur-
face, facing the intake ports (each side).

OIL SEAL

Install the two dowel pins onto the cylinder head. Install
the camshaft holder in the cylinder head, aligning the oil
holes on the holder and cylinder head.

Install and tighten the eight bolts in the sequence, as

shown.
Torque: 20 N~m (2.0 kg~m, 14 ft-Il'l)
Install the timing belt (next page).

7=21
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 Cylinder HeadlExhaust System
Timing Belt Installation
Check that both timing belt drive pulleys are tight.
KEVS

NOTE
@ If the bolt is properly torqued and one or both of the
pulleys is loose, disassemble and inspect the pulley
keys for wear.
@ The timing belt guide plates should be installed with
the cupped edges facing away from the belt.
@ The pulse rotor should be installed with its "OUT-
SIDE" mark facing out.
"OUTSIDE"
MARK

Apply locking agent to the shield cover bolt threads.

Place new shield cover gaskets on the cylinder head.
Install each shield cover with the rubber gasket glued in
the correct position.

NOTE
@ The shield covers are identified by marks:
"MN5-R": right side shield cover
"MN5-L": left side shield cover

Install the driven pulley on the camshaft with the cam-

shaft keyway aligned with the key in the driven pulley.

NOTE
@ "UP" marks on the pulleys should face outward.

.. Do not tum the camshaft while timing belts are

removed; you may damage the valves and
piston domes.
...~-_.".---~-------

Hold the pulley and tighten the bolt with washer.

UNIVERSAL
Torque: 27 N-m (2.7 kg-m, 20 ft-Ib) HOl.DER
Tool:
Universal holder
07725-0030000

NOTE
.. Install the washer with its chamfered side facing the
bolt.

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 Turn the crankshaft counterclockwise until the T1.2 drive
pulley mark lines up with the index mark on the engine
case.
Apply locking agent to the tensioner bolt threads.
Install the timing belt tensioners on the crankcase, and
tighten the bolts just enough to allow smooth movement
of the tensioners.

CAUTION
@ Do not lubricate the tensioners. Oil will damage
the timing belts"
_ •• ~m~'~'~_'_"'_
••• '~"~_ _~ ~ _

NOTE
" Install the tensioner springs with the open ends at the
tensioner facing outward.
" Install the washer under the bolt nearest to the drive
pulley (each side).

Check that the "UP" marks on the driven pulleys align with the shield cover index marks. The pulley "UP" marks
should face up. Loosen the tensioner bolts and install the left timing belt.
Apply clockwise pressure on the left driven pulley so the belt will be slack at the tensioner.
Install the ignition pulse generators (see page 16-11).
Install the right timing belt using the same procedures.

"UP" MARKS
"UP" MARKS

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 linder Head/Exhaust stem
Timing Belt Installation (cont'd)
To check the timing mark alignment, turn the crankshaft 90
degrees clockwise and then 90 degrees counterclockwise.
Make sure the T1.2 mark is aligned with the index mark.
Tighten the tensioner driven pulley side bolt first, then
tighten the drive pUlley side bolt.
Torque: 26 N-m (2.6 kg-m, 19 it-Ib)
Push the belt upper run midway between the pulleys with
2 kg (4.4 Ib) force The belt slack should be 5-7 mm
(O.2~0.3 in).

NOTE
o Inspect and adjust timing belt tension while the
engine is cold.

Check the timing mark alignment and tighten the ten~

sioner bolts for the left belt in the same way.
Push the belt lower run midway between the pulleys with
2 kg (4.4 Ib) force. The belt slack should be 5-7 mm
(0.2-0.3 in).

CAUTION
@ Do not lubricate the belt tensioners. Oil will
damage the timing belts. To protect the sealed
tensioner beari rigs, do not use solvents or other
cleaning agents inside the front timing cover.

Hydraulic Valve Adjuster

Shim Selection
Shim the hydraulic valve adjusters when any of the
following parts are replaced:
o cylinder head/camshaft holder

.. camshaft
@ valve/valve seat (refaced)
@ rocker arm/rocker arm shaft

e Intake and exhaust hydraulic valve adjusters are

different and must not be interchanged.

If none of the above parts are new, install the original

shims in their correct positions. If one or more of the
above parts are replaced, proceed as follows:
Check the T1 .2 drive pulley mark lines up with the index
mark on the engine case The "UP" marks on the driven
pulleys should be facing up (each side).

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 Measure the distance between the top end of the Shim
Selection Gauge and shim surface of the cam holder by SHIM
inserting the gauge into the valve adjuster mount hole. SELECTION
GAUGE
Tool:
Shim selection gauge
07974-MG90000 ~
~q:!!=._------_._----~-----~"._._-
@ Check that there is no clearance between the rocker
arm and cam lobe, and rocker arm and valve stem.

Determine the number of shims to be used for the No. 1

cylinder valves.

Determine the number of shims to be used for the other Intake Exhaust Number of
cylinder valves in firing order, using the same procedure.
_ _ .. mm (in)
....... ...- ..
10.2-10.3
mm (in)
12.2-12.3
shims
_._---_..-
_.---_.__
0
(0.402-0.406)
.- _.
(0.480-0.484)
--
10.3-10.4 12.3-12-4
1
(0.406-0.409) (0.484-0.488)
10.4-10.5 12.4-12.5
2
(0.409-0.413) (0.488-0.492)
tJ.2.J::E...._._._._. . ..
._~_._.~._._ _,~" 10.5-10.66 12.5-12.6
3
" Turn the crankshaft clockwise. (0.413-0.417) (0.492-0.496)
!--..

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 Cylinder HeadlExhaust System
Hydraulic Valve Adjuster Shim Selection (cont'd)

Fill the hydraulic valve adjusters with oil. Check for the
absence of air by compressing with your fingers.

CAUTION
To prevent entry of air, do not tilt the adju~tel's
e
2"ce th~y are"filled with oil or kerosene._._ _

Bleed air from the adjuster if it compresses by more than

l
0.30 mm (0.012); (see page 7-10).

~
HYDRAULIC
VALVE ADJUSTER

Slide the exhaust valve adjusters into the camshaft

holder, with the oil holes facing up.
Install the cap on each intake valve adjuster and slide it
into position in the camshaft holder, with the cap facing
up.

Install the shims and stopper plugs.

Torque: 30 N-m (3.0 kg-m, 22 n-II»

Apply Three Bond 1521 or equivalent to the cylinder head

cover gasket groove if the gasket is removed.
Attach the gasket to the head cover groove correctly.

NOTE
e Clear the groove before applying adhesive.
e Do not apply adhesive to the camshaft holder con-
tacting surfaces.

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 Coat the rubber areas of the cover bolts washers with oil.
Install the rubber plugs in the bolt holes.
Torque the bolts.
Torque: 12 N-m (1.2 i<g-m, 9 ftmlb)

Install the cylinder head rear cover with a new gasket.

NOTE
@ Align the cover holes with the gasket projections.

Install the timing belt covers with cover gaskets.

Install the under cover and fairing front cover (see page
13-11 ).

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 Cylinder HeadlExhaust System
Exhaust PipelMuffler ~----------------

EXHAUST PIPE
PROTECTOR

GL1500SE:

MUFFLER

CHAMBER
PROTECTOR

10 N-m
10 N-m (1.0 kg-m. 7 ft-lbl
(1.0 kg-m. EXHAUST PIPE
7 ft-lb)

Chamoor Protector
Remove the two step cover bolts.
Remove the step cover by releasing its rubber tabs from
the chamber protector holes.
Remove two bolts and chamber protector.

RUBBER
TABS

GL1500SE: RUBBER TABS

Remove the two bolts, release the rubber tabs and
remove the chamber protector.

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 Exhaust Pipe Protectors
A & I models:
Remove the fairing front cover and the under cover (see
page 13-11).
Remove the chamber protector (page 7-28).
Left Side - Front:
Remove the gearshift pedal.

NOTE
@ When installing the gearshift pedal, align the pedal
slot with the punch mark on the gearshift shaft.

Remove two bolts and three nuts and the front exhaust
pipe protector.

Left Side - Rear:

Remove the exhaust pipe (see page 7-32).
Remove three bolts and the rear exhaust pipe protector.

Right Side:
Remove the chamber protector (page 7-28).
Remove three bolts and nuts and the right exhaust pipe
protector.

7...29
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 Under HeadlExhaust System
Exhaust PipelMuffler (cant'd)
Exhaust Pipe Protectors
GL1500SE:
Remove the faring front cover and the under cover (see
page 13·11).
Remove the chamber protector.
Right Side:
Remove the brake pedal.
Loosen the front bolt and remove the two bolts. Remove
the three nuts and the exhaust pipe protector.

Remove the nut and disconnect the opener cable from

the exhaust pipe protector lid.
Remove the two nuts and the lid from the exhaust pipe
protector.

Left Side - Front:

"v" MARK
\1

---m·~······'\.
Remove the gearshift pedal.
-' ',1 ..
NOTE
.. When installing the gearshift pedal, align the "v" mark ~
of the pedal with punch mark on the gearshift shaft. ~
;::;

GEARSHIFT PEDAL
~PUNCHMARK

Loosen the front-bolt and remove the rear bolt.

REAR BOLT
Remove the three nuts and the front exhaust pipe
protector.
Disconnect the opener cable and remove the lid in the
same manner as the right side.

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 Left Side - Rear:
BOLTS
Remove the exhaust pipe (see page 7-32).
Remove the three bolts and the rear exhaust pipe pro-
tector.

REAR EXHAUST
PiPE PROTECTOR

ExtUlust Pipe Protector lid Opener

GL1500SE:
Remove the right fairing pocket (see page 13-9).
Remove the screw and the lid opener knob.
Remove the plastic nut and washers and remove the
opener from the instrument panel.

NOTE
" When installing the opener, align the tab with the
groove in the panel and tighten the plastic nut.
BOLT
Loosen the opener cable lock nut and remove the cable
from the stay. SHSPRiNG

~
Remove the set spring, cable stay and drum holder from
~
o .
,
the cable drum. ')

Install the exhaust pipe protector opener in the reverse

order of removal. CABLE DRUM

After installing the opener, check the operation of the

exhaust pipe protector lid by turning the opener knob. DRUM HOLDER

Opener Cable Adjustment

GL1500SE:
I
CABLE STAY

Turn the lid opener knob to the "CLOSE" position and

check that the protector lid is completely closed.
Turn the opener knob to the "OPEN" position and check
that the lid is fully open by moving the lid with your hand.
If adjustment is necessary, remove the under cover (see
page 13-11).
Slide the boot off the cable adjuster, loosen the lock nut
and turn the adjuster as required.

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 linder HeadlExhaust System
Exhaust PipelMuffler (cont'd)
Heat Protectors
Left Side:
Remove the left exhaust pipe (see below).
Remove three bolts and the rear heat protector.

Remove two bolts and the front heat protector.

FRONT HEAT PROTECTOR

Right Side:
Remove the chamber protector and exhaust pipe protec- BOLTS
tor (see previous page).
Remove four bolts and the front/rear heat protectors.

Exhaust Pipe
Left Side:
Remove the left front exhaust pipe protector (see page
7-29).
Remove the engine guard (Section 6).
Loosen the exhaust pipe joint bolt.
REAR EXHAUST
Remove the exhaust pipe joint cap nuts. PIPE PROTECTOR
Disconnect the hot air tube from the exhaust pipe hot air
chamber.
Remove the exhaust pipe.
Remove the rear exhaust pipe protector.

Right Side:
Remove the right exhaust pipe protector (see page 7-29).
Loosen the exhaust pipe joint bolt.
Remove the exhaust pipe joint cap nuts.
JOINT BOLT
Remove the exhaust pipe.

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 Muffler
Remove the chamber protector (see page 7-28). Loosen
the muffler joint bolts.
Remove the muffler mounting bolt, washer and nut.
Remove the muffler. --. \~
/ III
( I '(
I.i. / I) ~ \
j
IM~ MUFFLER
~JOINT
BOLTS

Remove the following:

" mufflers (see above).
" one exhaust pipe (see previous page).
Remove the exhaust chamber mounting bolts and nuts.
Remove the exhaust chamber.

~
'\
BOcr

BOLT NUT

7...33
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 Crankshaft/Piston
Service Information 8-2
Troubleshooting 8-4
Front Engine Cover
Removal ... "".""""... 8-5
Rear Case Cover
Removal "." ..... " .. "" 8-6
Scavenging Pump" .. " .. 8-10
Oil Strainer and Main
Oil Pump ." .... """.". 8-14
Piston/Connecting Rod
Removal "" .. """"".".. 8-17
Crankpin Bearing ."".""" 8-21
Piston/Connecting Rod
Installation ... "".""... 8..23
Crankshaft Removal """. 8..27
Main Journal Bearing ... 8-28
Crankshaft Installation ." 8..30
Front Engine Cover
Installation 8..32
Rear Case Cover
Installation ."." .... "". 8..33

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 Crankshaft/Piston
Service Information =~~-

$ See Section 6 for engine removal and installation.

$ To separate the crankcase, refer to Section 10.
$ If you aren't removing the right side pistons (cylinders No.1, 3, and 5), it is not necessary to remove the right
cylinder head. Certain steps are required to prevent valve damage when separating the engine cases without first
removing the right cylinder head (Section 10).
$ Whenever the case is disassembled, remove all gasket material from oil passages and water jackets.

~ 70 N-m (7.0 kg-m. 51 ft-Ib)

Torque Values
Crankshaft main bearing cap bolt 70 N-m (7.0 kg-m, 51 ft-Ib) - Apply oil
Connecting rod cap nut 32 N-m (3.2 kg-m, 23 ft-Ib) - Apply oil

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 190 N-m (19.0 kg~m.
137 ft·lbl

190 N-m (19.0 kg-m.

131 ft-Ibl

Torque Values
Starter clutch mounting bolt 75 N-m (7.5 kg-m, 54 ft-Ib)
Alternator drive gear bolt 27 N-m (2.7 kg-m, 20 ft-Ib)
Oil pump driven sprocket bolt 18 N-m (1.8 kg-m, 13 ft-Ib)
Final drive gear lock nut 190 N-m (19.0 kg-m, 137 ft-Ib)
Output shaft lock nut 190 N-m (19.0 kg-m, 137 ft-Ib)

8-3

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 CrankshaftlPiston
Service Information (eont'd)

.. The lubrication system uses two oil pumps; main and scavenging. The main pump picks up oil from the crankcase
and delivers it under pressure to the bearings and other important parts of the engine. It is equipped with a
pressure relief valve.
.. The scavenging pump draws oil from the clutch housing in the rear engine cover and sends it to the primary drive
and driven gears to lubricate and cool them.
e To remove the main oil pump and scavenging pump, perform the following:

Main Oil Pump: Scavenging Pump:

.. Engine removal (Section 6) .. Engine removal (Section 6)
.. Engine case separation (Section 10) .. Clutch removal (Section 9)
.. Rear case cover removal (page 8-7)
" Primary driven gear removal (Section 10)

18 N-m 11.8 kg-m. 13 ft-lbl

8-4
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 Troubleshooting

Excessive Noise Excessive Smoke

" Crankshaft " Worn cylinder, piston or piston rings
- Worn main bearing " Improperly installed piston rings
- Worn rod bearing " Damaged piston or cylinder
" Piston and Connecting Rod
- Worn piston or cylinder
Overheating
" Excessive carbon bUild-up on piston head
- Worn piston pin or pin hole
" Blocked or restricted flow of coolant
low Compression Oil" Uneven Compression " Sticking thermostat
" Worn cylinder or piston ring
Knocking Oil" Abnormal Noise
High Compression " Worn pistons and cylinders
" Excessive carbon build-up on piston head or in com- " Excessive carbon build-up on piston head
bustion chambers

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 CrankshaftlPiston
Front Engine Cover Removal
NOTE
" The front engine cover can be serviced with the
engine in the frame.

Drain the coolant (see page 5-8).

Drain the engine oil (see page 3-13).
Remove the following:
" fairing front cover and under cover (see page 13-11).
" water pump (see page 5-15) .
.. oil pressure switch wire.
.. gearshift sensor 6P-BLK connector (see page 16-13).
" bolts and front engine cover.

Remove the dowel pins, O-ring and gasket.

Remove the oil pipe from the oil pump.
For gearshift sensor removal, (see page 16-13).

Remove the bearing holder.

Remove the countershaft bearing, if necessary.

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 Rear Case Cover Removal
Bearing Holder (Output Shaft)
Remove the following:
" engine (see section 6).
" A & SE: reverse shift arm (see page 18-31).
" clutch (see section 9).
" starter motor (A & SE: See page 18-13, I: see page
18-49).
" alternator (see page 17-10).
Remove the bolts and bearing holder.

Check the O-ring and oil seal for damage, fatigue, or

deterioration.
Replace them if necessary.

Drive the oil seal out of the holder. Drive a new seal into
the holder.
Tools:
Driver
07749-0010000
Attachment, 42 x 47 mm
07746-0010300
Pack the dust seal lip with grease.

Rear Case Cover

Unstake the output shaft lock nut with a drill or grinder
(2 places).
Be careful that metal particles do not enter the bearing,
and that the threads on the shaft are not damaged.

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 Crankshaft/Piston
Rear Case Cover Removal (confd)

Set the transmission in any gear except neutral. Install

the special tools as shown.
Remove and discard the lock nut.
Tools:
Mainshaft holder
07JMB-MN50200
Lock nut wrench, 30 x 64 mm
07916-MB00001

Remove the rear case cover mounting bolts and rear

case cover.

Remove the dowel pins and gasket.

Cover Bearing
Turn the inner race of each bearing with your finger. The
bearings should turn smoothly and quietly.
Check that the outer race of each bearing fits tightly in the
rear case cover.
Replacement:
Remove the bearing set plates and mainshaft bearing.
Install a new bearing with the seal facing inside.
Tools:
Driver
07749-0010000
Bearing driver attachment
07GAD-SD40101
Apply a locking agent to the bolt threads. Install the bear-
ing set plate with the "Outside" mark facing out. Tighten
the bolts.

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 Drive the output shaft bearing and reverse shifter shaft
needle bearing out of the case cover.
Check the dust seal for damage or fatigue. Replace, if
necessary.

OUTPUT
SHAFT
BEARING

Drive a new output shaft bearing into the cover.

Tools:
Driver
on 49-0010000
Attachment, 62 x 68 mm
07746-0010500
Pilot, 30 mm
on 46-0040700
Press a new needle bearing into the cover.
Tools:
Driver
07749-0010000
Attachment, 28 x 30 mm
07946-18701 00
Pilot, 12 mm
07746-0040200

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 CrankshaftlPiston
Scavenging Pump
Removal
To remove the scavenging pump, perform the following:
" Engine removal (see Section 6).
" Clutch removal (see Section 9).
" Rear case cover removal (see page 8-7).
" Primary driven gear removal (see Section 10).
Remove the drive chain guide after removing its three
mounting bolts.

Remove the scavenging pump by removing its two

mounting bolts.
Remove the dowel pin from the left crankcase.

Disassembly
Remove the following:
" pump cover from the pump body by removing the
attaching bolt
" grommet.
" dowel pins from the pump body.
" oil seals from the pump body and cover.
Clean all parts thoroughly with clean engine oil.

AITACHING BOLT

Inspection
Temporarily reinstall the scavenging pump as shown.
Measure the rotor tip clearance.
Service limit: 0.35 mm (0.014 in.)

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 Measure the pump body clearance.
Service limit: 0.42 mm (0.017 in)

Measure the side clearance.

Service limit: 0.12 mm (0.005 in)

Assembly
INNER ~ ~..- OIL SEAL
ROTOR O~ _ _ PUMPBOOV

D
~~~DOWELPINS
~VE GUIDE ~gi~~
~'\ @
~~ ATTACHING
BOLT
' - - - GROMMET

Clean all removed parts thoroughly. Dip them in clean

engine oil before reassembly.
Install a new oil seal into the pump body.
Install the dowel pins on the pump body.
Install the inner and outer rotors into the pump body with
the punch marks facing toward the cover.
PUNCH
Install the drive guide onto the inner rotor. MARKS

Install a new oil seal into the pump cover.

Install the pump cover onto the body.

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8-11
 Crankshaft/Piston
Scavenging Pump (cont'd)

Install and tighten the attaching bolt.

Install the grommet securely.

NOTE
" Be certain the grommet is in position before installing
the scavenging pump to the case.

Make sure the drive guide is rotating smoothly.

ATTACHING BOLT

Installation
Install the dowel pin.
Install the pump on the left crankcase, aligning the flat on
the pump rotor shaft with the flat on the drive guide.

Install and tighten the two mounting bolts.

Install the drive chain guide and tighten the three mount-
ing bolts.

8=12
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 Install the oil pump sprocket, drive chain, and primary CWTCH OUTER
driven gear boss as an assembly. BOSS

NOTE
SPROCKET
o The sprocket "OUT" mark should face out.

Temporarily install the clutch outer and clutch outer

holder so that the oil pump sprocket cannot be rotated.
lvvl.

Clutch outer holder

07JMB-MN501 00
Apply a locking agent to the sprocket bolt threads.
Install and tighten the washer and bolt, holding the clutch
outer.
Torque: 18 Nmm (1.8 kg-m, 13 ft-Ib)

Install the primary driven gear (see Section 10).

Install the starter clutch (see Section 18).

Install the scavenging pump oil filter to the rear case

cover.
Install the rear case cover (page 8-33).

SCAVENGING PUMP OIL FILTER

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 Crankshaft/Piston
Oil Strainer and Main Oil Pump
Removal
To remove the main oil pump perform the following:
" Engine removal (see Section 6).
" Engine case separation (see Section 10).
Remove the main pump mounting bolts and two dowel
pins from the left crankcase.

Oil Strainer Cleaning

Remove the set ring and oil strainer.
Clean the oil strainer with a non-flammable solvent.
Install the oil strainer and set ring securely.

Relief Valve Check

Remove the cotter pin, valve seat, spring, and relief valve
from the pump body. Check the valve for clogging or
damage.
Measure the relief valve spring free length.
Service limit: 84.0 mm (3.31 in)
Assemble tt,e relief valve in the reverse order of dis-
assembly. Use a new cotter pin.
NOTE
" Position the cotter pin as shown.

Main Oil Pump Disassembly

Remove the pump cover from the body by removing the
attaching bolts.
Disassemble and clean all parts thoroughly with clean
engine oil.

8..14
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 Measure the rotor tip clearance as shown.
Service Limit: 0.35 mm (0.014 in)

Remove the rotor shaft, spacer and drive pin. Measure

the side clearance. ROTOR SIDE CLEARANCE

Service limit: 0.12 mm (0.005 in)

Measure the pump body clearance.

Service limit: 0.43 mm (0.017 in)

Assembly

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 Cranksha iston
011 Strainer and Main 011 Pump (cant'd)

Clean all removed parts thoroughly, then dip them in

clean engine oil before reassembly.
Install the outer rotor into the pump body with its punch
mark facing toward the body.
Install the inner rotor.
Insert the drive pin to the rotor shaft.
Align the slots in the inner rotor with the drive pin.
Place the spacer into the inner rotor groove.
Install the dowel pins and pump body.
NOTE
" The shaft, spacer, drive pin, and inner rotor are
assembled as shown.

Tighten the pump cover attaching bolts.

Make sure the rotor shaft rotates smoothly.

Installation
Install the dowel pins onto the left crankcase.
Install the main oil pump and tighten the mounting bolts.

Install the removed parts in the reverse order of removal.

Assemble the crankcase (see Section 10).
Install the engine in the frame (see Section 6).

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 Piston/Connecting Rod Removal
Separate the crankcase (see page 10-9).

Side Clearance Inspections

Measure the connecting rod side clearances.
Service limit: 0.40 mm (0.016 in)
If clearance exceeds the service limit, replace the rod.
Recheck and if still out of limit, replace the crankshaft.
Inspect the crankshaft for rough spots or damage.

Remove the left connecting rods by removing the bearing

caps. Mark them to indicate the correct cylinder (No.2, 4 LEFT CONNECTING RODS

and 6) and piston on the crankpins.

Remove the right connecting rod bearing caps.
Push the connecting rod and piston out through the top of
the right cylinder bore.
Mark them to indicate the correct cylinder (No.1, 3 and 5)
and piston on the crankpins.

CAUTION
@ On engines with high mileage, inspect the cylin-
ders for a ridge just above the highest point of
ring travel. Any ridge must be removed with an
automotive type ridge reamer before removing
CVlINDER WEAR
the right side pistons to allow the pistons and RIDGE
rings to pass through the cylinder.

PistonlRingiRod Inspection
Remove the piston pin clip with needle nose pliers. Press
the piston pin out of the piston.

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 Cranksha iston
Piston/Connecting Rod Removal (cont'd)

PistonlRingIRod Inspection
Install the piston pin driver pilot and piston base head on PISTONBASE'~.
_ .
f
the piston base as shown. HEAD ~ CJa /~ . PISTON PIN

Tools:
.'----_.'0'
.V DRIVER INSERT
07JGF-001010A
V
Piston base head
Piston base 07973-6570500 r,
:~l~Ni0 \j'_:~I~~BASE
Piston pin driver insert 07973-6570400
Piston base spring 07973-6570600

Tum the handle of the piston pin driver so that dimension

A is 51 mm (2.01 in).
Tools: ADJUSTABLE
Adjustable piston pin driver head 07973-6570210 .....--- PISTON PIN
Adjustable pin driver shaft 07973-6570300 DRIVER HEAD

ADJUSTABLE
DIMENSION A PISTON PIN
51 mm (2.01 in) DRIVER SHAFT

_----'9.p
"

:~=-=- ~.::D
, - - PISTON PIN

·- · · . PISTON PIN
DRIVER INSERT

NOTE
F
I

I
....

e After adjusting the piston pin driver length, the driver

shaft will protrude past the adjustable piston pin driver
J .__.__._.. _
Oe
o 0
head. Place a suitable 12 mm plain washer over the o
u
0
c
driver head to prevent direct pressure on the shaft
threads when putting the piston driver in the hydraulic L
press.
-----~,------------

ADJUSTABLE
Place the piston on the piston base with the piston head PISTON PIN
toward the arrow on the base. Press the piston pin out of DRIVER
the connecting rod with the position pin driver collar and
driver, using a hydraulic press.
Tool:
Pilot collar 07KMF-MT20200

8-18
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 Spread each piston ring and remove it by lifting up at point
opposite the gap.

m Do not damage the piston ring by spreading the

ends too far.

PistoniRingIRod Inspection
Clean the top of the piston. Inspect for evidence of pitting
or deterioration. Use an old piston ring to remove carbon
and oil deposits from the ring grooves.
CAUTION
m Do not damage the piston ring grooves.
@ Do not use a wire brush to clean ring grooves
and lands; a wire brush can damage these areas.

Measure the 0.0. of the piston pin.

Service limit: 18.99 mm (0.748 in)
Measure the connecting rod small end 1.0.
Service limit: 18.04 mm (0.710 in)
Calculate the connecting rod small end-to-piston pin
clearance.
Service limit: 0.04 mm (0.002 in)

Measure the piston pin bore.

Service Limit: 18.06 mm (0.711 in)
Calculate the piston pin-to-piston clearance. Replace the
piston with a new one if the service limit is exceeded.
Service limit: 0.04 mm (0.002 in)

Inspect the ring lands for abnormal wear. Inspect the

piston thrust faces for scratches.
Inspect the pistons for cracks or other damage
Inspect the piston ring-to-ring land clearances with the
piston ring installed.
Service limit: 0.10mm (0.004 in)

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 Crankshaft/Piston
Piston/Connecting Rod Removal (cont'd)

Measure the piston 0.0. at a point 10 mm (0.4 in) from

the bottom and 90° to the piston pin bore.
Service limit: 70.85 mm (2.789 in)

Cylinder Inspeclicm
Using a piston, push a new piston ring squarely into the
cylinder and measure the end gap at the position in the
cylinder bottom shown.
Service limits:
Top/second: 0.5 mm (0.02 in)
Oil: 0.9 mm (0.04 in)
If the gap exceeds the service limit, measure the cylinder
1.0.
Inspect the cylinder walls for scratches and wear.

Measure the cylinder 1.0. at three levels in an X and Y

axis. Take the maximum reading to determine the cylin-
der wear.
Service limit: 71.1 mm (2.80 in)
Measure each piston 0.0. at three levels in an X axis
(see above). Calculate the piston-to-cylinder clearance.
Take the maximum reading to determine the clearance.
Service limit: 0.10 mm (0.004 in)
Calculate cylinder taper at three levels in an X and Y axis.
Take the maximum reading to determine the taper.
Service limit: 0.05 mm (0.002 in)
Calculate the cylinder out-of-round at three levels in an X
and Y axis. Take the maximum reading to determine the
out-of-round.
Service limit: 0.15 mm (O.COS in)
The cylinder must be rebored and an oversize piston
fitted if the service limits are exceeded.
The following oversize pistons are available: 0.25 mm
(0.001 in), 0.50 mm (0.020 in), 0.75 mm (0.030 in),
1.00 mm (0.039 in)
The cylinder must be rebored so that the clearance for an
oversize piston is 0.015-0.065 mm (0.0006 - 0.0026 in).

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 Oil Clearance Inspection
CHECK
Inspect the bearings for scars, separation, and damage ~ DEFORMATiON

on the bearing surfaces.

Inspect the bearing tab for deformation.

CHECK
SEPARATION

GOOD CRANKPlN
BEARING

Put a piece of Plastigauge on each crankpin.

NOTE
@ Do not place Plastigauge over any oil holes.
e Do not rotate the connecting rod or crankshaft during
the inspection.

On the crankpin bearings, install the bearing caps and

rods on the correct crankpins, and tighten them evenly.
Torque: 32 N-m (3.2 kg-m, 23 ft-I!:»

NOTE
" Apply oil to the nut flange and threads.

Remove the caps and measure the compressed Plasti-

gauge on each crankpin.
If the bearing clearance is beyond the service limit, select
the correct replacement bearings.
S~mfice limit: 0.06 mm (0.002 in)

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 CrankshaftlPiston
Crankpin Bearing (cont'd)

Bearing Selection
Record each connecting rod 1.0. code number. Codes
may be 1,2, or 3 or I, II, or III.

1.0. CODE

Recode the corresponding crankpin 0.0. letter. Codes

may be A, B, or C.
NOTE

_l Ll !o
r-~-- NO.1

" Example: L
B B C B SNO 6

l NO.2
.. NO.4
NO.3
0.0. CODE .

Cross reference the connecting rod and crankpin codes ROD BEARING SELECTION TABLE
to determine the correct replacement bearing color.

~
3 (III) Brown Black Blue
Connecting
Rod 2 (II) Green Brown Black
1.0. Codes 1 (I) Yellow Green Brown
,,=,,~=,,=,,-_._.

ABC
Crankpin 0.0. Codes

Bearing insert thickness, mm (in)

Blue 1.503-1.506 (0.05917 - 0.05929) COLOR CODE

Black 1.500-1.503 (0.05906 ~ 0.05917)

Brown 1.497-1.500 (0.05894 - 0.05906)
Green 1.494-1.497 (0.05882 - 0.05894)
Yellow 1.491-1.494 (0.05870 - 0.05882)

CAUTiON
" After selecting new bearings, recheck the clear-
ance with Plastigauge. Incorrect clearance can
cause major engine damage.

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 Bearing Installation
Clean oil off the bearing outer surfaces, bearing caps,
and connecting rods.
Install the cranl<pin bearings onto the connecting rods
and bearing caps, aligning each oil hole.
Apply molybdenum disulfide oil to the cranl<pin bearing
surfaces.

CAUTION
@ Make sure the bearing tabs are aligned with the OIL HOLIES
grooves on the rods and caps.

Piston/Connecting Rod Installation

Connecting Rod Selection
If a connecting rod requires replacement, you should
select a rod with the same weight code as the original.
Old Rod New Rod
Weight Weight
Code Code
A A
8------------- 8
C C
o 0 WEIGHT CODE
E E

8...23
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 CrankshaftlPiston
Piston/Connecting Rod Installation (cont'd)

Installation
Before installing the pistons, apply a coat of oil to the ring
grooves, cylinder bores, and rod bearings.
Carefully install the piston rings on the piston.

NOTE
" All rings should be installed with the markings toward
the top of the piston. After installation they should be
free to rotate in the piston ring grooves.
" Do not interchange the top and second ring.

Stagger the top and second piston ring end gaps 60 20 mm (0.8 in)
degrees apart from "IN" marks, as shown. OR MORE

Stagger the oil ring and side rail end gaps as shown.

PISTON

Turn the handle of the piston pin driver so that dimension DIMENS!ONA
A is 51 mm (2.01 in). 51 mm (2.01 in)

Adjustable piston pin driver head 07973-65"70210

Adjustable piston pin driver 0"7973-6570300
shaft ----="---=~-
Install the piston pin driver collar onto the driver pilot. --:J
--~~~
~-i.. ,
-]
NOTE
" After adjusting the piston pin driver length, the driver ADJUSTABl.E PISTON
--
-/
I i

ADJUSTABLE PISTON
shaft will protrude past the adjustable piston pin PIN DRIVER SHAfT PIN DRIVER HEAD
driver head. Place a suitable 12 mm plain washer
over the driver head to prevent direct pressure on the
shaft threads when putting the piston pin driver in the
hydraulic press.

Install the piston and connecting rod onto the piston base
as follows:
No.1, No.3 and NO.6 pistons:
- "MT2" mark on the piston is facing UP
- piston head is toward the arrow on the base
~~ "R-IN" mark is facing the same direction as the oil hole ~.r~----.--
PISTON BASE
in the rod
.~HEAD
PISTON BASE

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 No.2, No.4 and NO.6 pistons:
- "MT2" mark on the piston is facing down ADJUSTABLE n""'!---~-_12mm fLAT
PiSTON PIN _ _._. WASHER
- piston head is toward the arrow on the base DRIVER HEAD~
I

-- "L-IN" mark is opposite the oil hole in the rod PISTONPIN--~~- .. ~\.~
Coat the piston pin with clean engine oil and insert it into ~ "~Jj/"i)
the piston. Place the piston pin driver onto the piston pin. "L-iN" MARK_i.. ~
\_ . ) OIL HOLE
Tools:
Piston base 07973-6570500
"MT2"MARK-/- ~""l PiSTON BASE
.~- HEAD
Piston base head 07JGF-001010A
ARROW /~
Piston pin driver insert 07973-6570400
Pilot collar 07KMF-MT20200 /
PISTON BASE

® After adjusting the piston pin driver length, the driver

shaft will protrude past the adjustable piston pin driver ADJUSTABLE
head. Place a suitable 12 mm plain washer over the PISTON PiN
driver head to prevent direct pressure on the shaft DRIVER HEAD
threads when putting the piston pin driver in the
hydraulic press.

Using a hydraulic press, press the piston pin into the con- ADJUSTABLE
PiSTON PiN
necting rod until the driver pilot bottoms against the base
DRIVER SHAFT
(hydraulic pressure rises slightly).
Remove the piston assembly from the tools. ="D
Measure dimension B between the piston pin and piston PiLOTCmLAR
ends with the connecting rod small end of the marking
side contacted with the piston.
Determine dimension A by subtracting dimension B from _ PiSTON PIN
51 mm (2.01 in). DRiVER iNSERT

Adjust dimension A of the piston pin driver.

DIMENSION A "51 mm (2.01 in) - DIMENSiON B

Press in the piston pin again in the same manner until the
driver pilot bottoms.

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 Crankshaft/Piston
Piston/Connecting Rod Installation (cont'd)

Apply molybdenum disulfide oil to the crankpin bearings.

Install the right side rod assemblies in cylinders No.1, 3,
and 5 in their original positions.

NOTE
---
o To prevent crankshaft damage, slip short sections of
rubber hose over the rod bolts before installation.
o Install the pistons so that the "R-IN" mark on the
piston top is toward the top of the engine.

Tool:
Piston Ring Compressor
Commercially available

Apply molybdenum disulfide oil to the rod cap bearings.

Install the No.1, 3, and 5 rod caps on the correct crank-
pins.

CAUTION
o The bearing caps must be installed in their
correct locations, or the bearing oil clearance
may not be correct This could cause engine
_......_-_ __.... __... - - - - - - - -
damage.
.

Apply oil to the rod cap nut flange and threads.

Tighten the nuts in a gradual, crisscross pattern.
Torque: 32 Nam (3.2 kgam, 23 ft-Ib)
Install the left side rod assemblies in cylinders No.2, 4,
and 6 in their original positions with the "L-IN" marks
toward the top of the engine.
Apply molybdenum disulfide oil to the crankpin bearings.
Apply oil to the rod cap nut flange and threads.
Install the No.2, 4, and 6 rod caps on the correct crank-
pins. Tighten the nuts in a gradual, crisscross pattern.
Torque: 32 Nam (3.2 kg-m, 23 ft-Ib)

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 Crankshaft Removal
Separate the crankcase (see page 10-9).
Remove the left side rod assemblies from the crankshaft
(see page 8-17).
Remove the right side rod bearing cap (see page 8-17).

Remove the following:

® main bearing cap bolts.
" bearing cap plates.
" bearing caps.
" dowel pins.
" crankshaft.

NOTE
" Do not forcibly remove dowel pins from the bearing
caps.

Crankshaft Inspection
Rest the crankshaft on V blocks.
Set a dial indicator on a center main bearing journal.
Rotate the crankshaft two revolutions and read the
runout at two points. Divide the total indicator reading in
half to get the actual runout.
Service limit: 0.03 mm (0.001 in)

Measure the crankshaft main bearing journals and crank-

pins with a micrometer for out-af-round and taper.
Service limit:
Taper: 0.003 mm (0.0001 in)
Out~of-Round: 0.005 mm (0.0002 in)

" The crankshaft cannot be repaired. Replace it if the

journals or crankpins are burnt, cracked, or out of
tolerance; or if the runout is beyond limits.

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 Crankshaft/Piston
Main Journal Bearing
Oil Clearance Inspection CHECK
Inspect the bearings for scars, separation, and damage / DEFORMATION

on the bearing surfaces.

Inspect the bearing tab for deformation.

CHECK
SEPARATION
~I
GOOD MAIN
JOURNAL
BEARING

Put a piece of Plastigauge on each main journal.

@ Do not place Plastigauge over any oil holes.

@ Do not rotate the crankshaft during the inspection.

On the main journal bearings, install the main bearing

caps and dowel pins on the correct journals. __ DOT MARKS

o The installation positions of the main bearing caps

are identified with dot marks aligned with the numer-
als 1,2, 3, and 4, viewed from the front of the engine.

The arrows on the caps should face toward the engine

top.

Apply oil to the cap bolt threads and flange surfaces.

Tighten the cap bolts in a gradual, crisscross pattern.
Torque: 70 Nwm (7.0 kgwm, 51 fHb)

8-28
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 Remove the caps and measure the compressed Plasti-
gauge on each main journal.
If the bearing clearance is beyond the service limit, select
the correct replacement bearings.
Service limit: (lOG mm (0.002 in)

Bearing Selection
Record the crankshaft main journal O.D. code numbers.
The code may be 1, 2, or 3.
NOTE
r- NO.1 main journal
Example:

tLL~04
G L

3
0.0. CODE
NO.2

Record the corresponding engine crankcase bearing

support I.D. codes from the pad on the right side engine
case. The codes may be I, II, or III.
The numerals 1, 2, 3, and 4 stand for the crankshaft main
journals, as viewed from the front.

Cross reference the bearing support and main journal ROD BEARING SELECTION TABLE
codes to determine the correct replacement bearing ,--- , .-.~~ '---'''-

[
color.
"~~"'~"'~"~'''''~]'-'' -
Crankcase
Bearing
II I
'~'''II'
...
Brown Black
" ...."=,,
Blue
Green Brown Black
Support .~.... ~. ~~_ ...-
1.0. Codes I Yellow Green Brown
=,,,===,,,,,,,,,,,,,,-..= '''' .. f - - . _ - -
1 2 3
...-
Crankshaft Main Journal
0.0. Codes
b... ._-

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 CrankshafUPiston
Main Journal Bearing (canfd)
Bearing insert thickness, mm (in)
COLOR CODE
Blue 2.012 - 2.015 (0.07921 - 0.07933)
Black 2.009 - 2.012 (0.07909 - 0.07921)
Brown 2.006 - 2.009 (0.07898 - 0.07909)
Green 2.003 - 2.006 (0.07886 - 0.07898)
Yellow 2.000 - 2.003 (0.07874 - 0.07886)

CAUTION
@ After selecting new bearings, recheck clearance
with Plastigauge. Incorrect clearance can cause
major engine damage.

Bearing Installation
Clean oil off the bearing outer surfaces, bearing caps,
and right case.
Install the main bearings onto the right engine case and
bearing caps. Apply molybdenum disulfide oil to the main
bearing surfaces.

@ Make sure the bearing tabs are aligned with the

grooves on the case and caps.
-----

Crankshaft Installation
Inspect the thrust washers for scoring or discoloration.
Replace, if necessary.
Install the thrust washers with groove sides facing out.

The installation position of each main bearing cap is iden-

tified with a dot mark that is aligned with the proper DOT MARKS
numeral, as viewed from the front aide of the engine.
Each cap should be installed with its arrow mark pointing
toward the engine top.

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 Install the crankshaft.
Install the oil seal with the lip side facing inside.
Install the dowel pins and main bearing caps, noting cap
installation procedure mentioned in the previous step.

Apply oil to the main journal cap bolt threads and flange
MAIN JOURNAL CAP BOLTS
surfaces.
Install the bearing cap plates and cap bolts.
Tighten the bolts in a gradual, crisscross pattern.
Torque: 10 NGm (1.0 kg-m, 51 fl:-Ib)

Install the following:

@ right side rod bearing caps (see page 8-26).
@ left side rod assemblies (see page 8-26).
Assemble the crankcase (see page 10-18).

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 CrankshaftlPiston
Front Engine Cover Installation
If removed install the bearing holder.

Apply sealant to the engine case surfaces as shown.

APPLY SEAU\NT TO THESE
5mm 10.2 inl AREAS

Align the gearshift sensor pin with the tab as shown.

Install the O-ring onto the oil orifice.

Install the following:

@ a new gasket.
" dowel pins and O-ring.
@ O-rings and oil pipe.
Shift the transmission into neutral.
Install the front engine cover, aligning the sensor pin with
drum center and also aligning the oil passages.

DOWEL PIN

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 Tighten the front engine cover bolts in a gradual, criss-
cross pattern.
Install the removed parts in the reverse order of removal.
Fill the engine with oil (see page 3-14).
Fill the engine with coolant (see page 5-8).

Rear Case Cover Installation

Apply sealant to the crankcase surface, as shown.

Install a new gasket and dowel pins.

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 CrankshaftlPiston
Rear Case Cover Installation (cont'd)

Install the rear engine cover and tighten the bolts in a

gradual, crisscross pattern.

Set the transmission in any gear except neutral.

Install and tighten a new output shaft lock nut.
Torque: 190 Nmm (19.0 I<gmm, 131 ft~lb)
Tools:
Mainshaft holder
07JMB-MN50200
Lock nut wrench, 30 x 64 mm
07916-MB00001

Stake the output shaft lock nut (2 places).

Bearing Holder (Output Shaft)

Apply oil to the rear case cover surface as shown.
Install an O-ring into the bearing holder groove.
Install the holder over the output shaft.

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 Install and tighten the bearing holder bolts securely.
Install the following:
e alternator (see page 17-17)
o starter motor (A & SE: see page 18~21, I: see page
18-51 )
., clutch (see Section 9)
., A & SE: reverse shift arm (see page 18-38)
" engine (see Section 6)

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 Clutch
Service Information 9..2
Troubleshooting 9..4
Clutch Fluid Replacement!
Air Bleeding . . . . . . . . . .. 9..5
Clutch Master Cylinder . .. 9..6
Clutch Slave Cylinder 9..9
Clutch 9..10

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9=1
 Clutch
Service Information
@ This section covers removal and installation of the clutch hydraulic system and the clutch.
@ DOT 4 brake fluid is used for the hydraulic clutch and is referred to as clutch fluid in the section. Do not use other
types of fluid as they are not compatible.
@ Brake fluid will damage painted, plastic and rubber parts. Whenever handling brake fluid, protect the painted,
plastic and rubber parts by covering them with a rag. If fluid does get on these parts, wipe it off with a clean cloth.
@ Clutch service can be done with the engine in the frame.
@ To keep the slave cylinder piston from being forced out of the cylinder, squeeze the clutch lever and tie it to the
handlebar grip.

10 N-m
(1.0 kg-m,
7 ft-II:I)

130 N-m
(13.0 kg-m,
94 ft-II:I)

36 N-m
(3.5 kg-m,
25 ft-II:I)

Torque Values
Clutch hose bolt 35 N-m (3.5 kg-m, 25 ft-Ib)
Clutch master cylinder socket bolt 12 N-m (1.2 kg-m, 9 ft-Ib)
Clutch slave cylinder bleed valve 9 N-m (0.9 kg-m, 7 ft-Ib)
Clutch center lock nut 130 N-m (13.0 kg-m, 94 ft-Ib)
Clutch outer lock nut 190 N-m (19.0 kg-m, 137 ft-Ib) Apply locking agent to the threads

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 35 N-m
(3.5 kg-m,
25 ft-Ib)
12 N-m
(1.2 kg-m,
9tHb)

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 Clutch
Troubleshooting

Clutch lever too hard Motorcycle creeps with clutch disengaged

" Sticking piston(s) o Air bubbles in hydraulic system
" Clogged hydraulic system .. Low fluid level
.. Hydraulic system leaking
Clutch slips .. Hydraulic system sticking
.. Hydraulic system sticking
.. Plates warped
.. Discs worn
.. Engine oil level too high (too much engine oil)
.. Spring weak
.. Engine oil viscosity too thick
.. Sticking lifter system
.. Clogged hydraulic system Excessive lever pressure
.. Hydraulic system sticking
Clutch will not disengage
" Lifter mechanism damaged
.. Air bubbles in hydraulic system
.. Low fluid level Clutch operation feels rough
.. Hydraulic system leaking @ Outer drum slots rough
.. Hydraulic system sticking .. Sticking piston(s)
.. Plates warped

Hard to shift into gear

.. Clutch disengaged
.. Gearshift linkage or transmission faulty (Section 10)

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 Clutch Fluid Replacement/Air Bleeding

COVER SET
Do not allow foreign material to enter the system
~
o

when the diaphragm is removed.

1 __ T PLATE

@ Avoid spilling fluid on painted, plastic, or rubber

DIAPHRAGM
. ~d/
~
parts. Place a rag over these parts whenever the
system is serviced.
up~ yOAT

Clutch Fluid Replacement

LEVEL~~
Remove the reservoir cover, set plate, diaphragm, and
float with the fluid reservoir parallel to the ground.
Draw the clutch fluid (brake fluid) out of the reservoir
using a commercial syringe. LOWER LEVEL

Fill the reservoir with fresh DOT 4 brake fluid to the upper
level mark.
Connect a commercial brake bleeder, such as the
Mityvac No. 6860, to the bleed valve.
Open the bleed valve and pump the brake bleeder until
new brake fluid appears out of the bleed valve and air
bubbles do not appear in the plastic hose.

NOTE
@ Add fluid when the fluid level in the reservoir is low.
@ Use only DOT 4 brake fluid from a sealed container.
@ If air is entering the bleeder from around the bleed
valve, seal the valve with Teflon tape.
@ If you don't have a brake bleeder, replace the fluid
following the instructions for air bleeding (next page).

CAUTION
@ Do not mix: different types of fluid. They are not
compatible.

Tighten the bleed valve.

Torque: 9 N-m (0.9 kg-m, 7 ft-Ib)
Fill the reservoir with fresh DOT 4 brake fluid to the upper
level mark.
Operate the clutch lever. If it feels spongy, bleed the air
from the system.

Air Bleeding
If a brake bleeder is available, open the bleed valve and
pump the bleeder until air bubbles do not appear in the
plastic hose while adding fresh DOT 4 fluid to reservoir
upper level (same procedure as clutch fluid replacement
above).
If a bleeder is not available, follow the instructions for air
bleeding on the next page.

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 Clutch
Clutch Fluid Replacement/Air Bleeding (cont'd)

Connect a plastic hose to the bleed valve.

1. Pump up the system pressure with the clutch lever
until there are no air bubbles in the fluid flowing out of
the reservoir bleed holes. Squeeze the lever, open the
bleed valve 1/2 turn, and then close the bleed valve.

NOTE
e Do not release the clutch lever until the bleed valve
has been closed.
@ Add fresh DOT 4 fluid when the fluid level in reservoir
is low; do not mix different types of fluid.

2. Release the clutch lever slowly and wait several

seconds after it reaches the end of its travel.
Repeat steps 1 and 2 until air bubbles cease to appear in
the fluid coming out of the bleed valve.
Tighten the bleed valve.
Torque: 9 N-m (0.9 kg-m, 7 it-Ib)
Fill the fluid reservoir to the upper level mark with fresh
DOT 4 brake fluid from a sealed container.
Install the diaphragm, set plate and reservoir cover.

Clutch Master Cylinder

Disassembly
Draw the brake fluid from the reservoir completely using a
commercial syringe (previous page).
Remove the following:
o clutch switch wires.
@ clutch hose.

CAUTION
--_. - - - - - - - - - " ' , , - - -
" Avoid spilling fluid on painted, plastic, or rubber
parts. Place a rag over these parts whenever the
system is serviced.
@ When removing the oil bolt, cover the end of the
clutch hose to prevent contamination or air
mixture,

" A & SE: cruise cancel switch wire.

@A & SE: holder cap.
@master cylinder holder and master cylinder
@clutch lever.
@switch.
@push rod.
@boot.

9=6
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 " snap ring
Tool:
Snap ring pliers
07914-3230001 or commercial equivalent

" washer
" master piston
" primary cup
" spring
Clean the master cylinder, reservoir, and master piston in
clean brake fluid.
Check the primary and secondary cups for damage or
deterioration.

Inspection
Check the master cylinder and piston for scoring or other
damage.
Measure the master cylinder 1.0.
Service limit: 15.93 mm (0.627 in)

Measure the master piston outside diameter.

Service limit: 15.82 mm (0.623 in)

NOTE
" The master piston, piston cups, and spring must be
replaced as a set.

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 Clutch
Clutch Master Cylinder (cont'd)
Assembly
CAUTION
" Handle the master piston, spring, primary cup
and secom:Jary cup as a set.

Coat the master piston and the primary and secondary

cups with clean DOT 4 brake fluid.
Install the following:
" spring
" primary cup
" master piston

" Install the spring with its small coil end toward the cup. SNAP RING

CAUTION "·,_ _...=,,,"",,=",·,_••_ _ " m _ _

~ . ~

" Do not allow the lips of the cups to tum inside

out.

" washer
" snap ring
Tool:
Snap ring pliers
07916-3230001 or commercial equivalent
CAUTION
" Be certain the snap ring is firmly seated in the
groove.

" boot " switch

" push rod " clutch lever

Installation
Place the clutch master cylinder on the handlebar and
install the holder.
Align the edge of the master cylinder holder with the index
mark on the left handlebar cover. Tighten the upper bolt
first, then tighten the lower bolt.
Torque: 12 N-m (1.2 kg-m, 9 ft-Ib)
Install tile clutch hose on the master cylinder with the oil
bolt and two new sealing washers.
NOTE
" Set the hose as shown.

Tighten the oil bolt.

Torque: 35 N-m (3.5 kg-m, 25 ft-Ib)
Connect the switch wires to the switch. Fill and bleed the
clutch hydraulic system (see page 9-5).

9=8
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 Clutch Slave Cylinder
Disassembly
NOTE , _ _

o
~
m The clutch slave cylinder can be removed with the
engine in the frame.

Remove the following:

o both front side covers (see page 13-8).
@ canister (California model only; see page 4-60).
o bleed pipe mounting bolt and slave cylinder bolts.
@ slave cylinder.
Check the piston sliding area for fluid leak.
Get the slave piston out from the slave cylinder by
squeezing the clutch lever several times.

@ Avoid spilling clutch fluid on painted, plastic or

rubber parts. Place a rag over these parts when-
ever the liOystem is serviced.

Remove the clutch hose and bleed pipe if necessary.

Check the following for score, wear, or damage:

@ piston
@ seals
'" spring
'" cylinder

Assembly .,. G ! I
Apply a small amount of silicone grease (0.2 grams) to (SILICONE
the lifter rod attaching area of the piston. SPRING

Apply clean brake fluid to the piston and a new piston

seal. Apply grease to new oil seal lips.
Install the following to the piston:
@ seals
'" spring
Install the piston into the slave cylinder.

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 Clutch
Clutch Slave CyUnder (cont'd)
Install the dowel pins to the clutch cover.

rr. ·.'-
Install the slave cylinder and tighten the bolts securely.
Install the clutch hose and bleed pipe to the slave cylin-
der, using new sealing washers if the old washers were
removed.
Tighten the oil bolts to the specified torque.
Torque: 35 Nam (3.5 kgam, 25 fi-I!:>)
Apply locking agent to the bleed pipe mounting bolt
threads.
Tighten the bleed pipe mounting bolt.
Torque: 12 N-m (1.2 kg-m, 9 fi-I!:>)
Install the following:
@ canister (California model only; see page 4-60).
@ front side covers (see page 13-8).
Fill and bleed the clutch hydraulic system (see page 9-5).

Clutch -,,~"

Disassemblyllnspection
Drain the engine oil (see page 3-13).
Remove the following:
.. front side covers (see page 13-8).
.. left exhaust pipe protector (page 7-29) and heat protec-
tor (page 7-32).
" canister (California model only: see page 4-60) .
.. clutch slave cylinder (see page 9-9).

NOTE CLUTCH
COVER
" Do not disconnect the clutch hose.
.. To keep slave cylinder piston from being forced out of
the cylinder, squeeze the clutch lever and tie it to the
handlebar.

" clutch cover.

" dowel pins and gasket.
" clutch lifter rod and clutch lifter piece.
.. clutch lifter plate.

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 Inspect the lifter rod for wear, damage, or bending.

LIFTER ROD

Check the lifter piece for wear or damage.

LIFTER PIECE

Turn the inner race of the release bearing with your finger.
The bearing should turn smoothly and quietly.
Also check that the outer race of the release bearing fits
tightly in the lifter plate.
Remove and discard the bearing if the inner race does not
turn smoothly and quietly. Replace the clutch lifter plate if
the outer race does not fit securely.
Drive the bearing out from the lifter plate.

Install the bearing with its mark side facing out.

Tools:
Driver
07749-0010000
Attachment, 32 x 35 mm
07746-0010100

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 Clutch
Clutch (cont'd)

Straighten the lock washer tab and discard the lock

washer.

Set the special tool's collars to the 4" hole mark and
loosely install the nuts. HOLDER PLATE

Tool:
Clutch center holder
07HGB-001000A
(U.S.A. only) NUTS

Install the clutch center holder onto the clutch pressure

plate and tighten the tool's holder nuts securely. Use four
6 mm bolts to secure the tool to the clutch. COLLARS
Remove the lock nut with a commercial reversible ratchet
as shown.
Remove the following:
@lock washer.
@washer.
clutch center, pressure plate, discs, and plates as an
@

assembly from the clutch outer.

NOTE
_ _ _,,_""""_.>_."m""'_ ,,>_ _ ~ > _

@ To prevent damage to the clutch, four 6 mm bolts

must be used to secure the tool to the clutch.

Compress the diaphragm spring in a bench press just

enough to remove the stopper ring; remove the stopper
ring and disassemble the clutch.
CAUTION OIL SEAL DRIVER
ATTACHMENT
Q To prevent a loss of tension, do not compress
the diaphragm spring more than necessary to
remove the stopper ring.
>---~

Tools:
Oil seal driver attachment
07965-MA10200
Snap ring pliers
07914-3230001 or
commercial equivalent

9-12
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 Check the clutch center and pressure plate for nicks, cuts
and indentations made by the plates.
CLUTCH CENTER

PRESSURE
PLATE

Measure the height of the clutch spring.

Service limit: 5.1 mm (0.20 in)

CLUTCH
SPRING

Replace the clutch discs if they show signs of scoring or

discoloration.
Measure each clutch disc thickness.
Service limit: 3.5 mm (0.14 in)
NOTE
@ Replace the discs and plates as a set.

Check for plate warpage on a surface plate using a feeler

gauge. CWTCH
DAMPER PLATE
Service limit: 0.30 mm (0.012 in)
Check the clutch damper plate wave spring for damage.

9-13
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 Clutch
Clutch (cont'd)

Remove the spline washer from the mainshaft. Unstake

the clutch outer lock nut, using a drill or grinder.

Hold the clutch outer with the special tool. Remove the
clutch outer lock nut and discard it. Remove the lock
washer and clutch outer.
Tool:
Clutch outer holder
07JMB-MN501 00
Lock nut wrench, 46 mm
07JMA-MN501 00

Check the slots in the clutch outer for nicks, cuts, and SLOT
indentations made by the friction discs.
If the surfaces are not smooth or there is evidence of
other damage, replace the clutch outer.

Assembly
Clean the mainshaft and absorb the oil from the outer lock
nut threads thoroughly.
Install the clutch outer and lock washer.
NOTE
@ Install the lock washer with the "OUTSIDE" mark
facing outward.

"OUTSIDE" MARK

LOCK WASHER

-------~,,"'-,--,,'------

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 Apply locking agent to the threads of a new lock nut.
Tighten the lock nut to the specified torque.
Torque: 190 Nmm (19.0 kg-m, 131 ftmlb)
Tool:
Clutch outer holder
07JMB-MN501 00
Lock nut wrench, 46 mm
07JMA-MN501 00

Stake the lock nut in two places.

Install the spline washer.

Coat the discs and plates with clean engine oil. A

PLATES
Install the clutch center, discs, plates, and pres- (8 PC)
sure plate as shown.

PRESSURE PLATE

CLUTCH DAMPER
PLATE

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 Clutch
Clutch (cont'd) _'_~~'~~-~~"'~~'''~~''~''"
•.. ' ,---~,~."~"'~=.~"---,-,,,, ,----~

Install the clutch damper plate, aligning the "0" marks on

the clutch damper plate and clutch center. CLUTCH DAMPER PLATE
1 CLUTCH CENTER

"O"MARKS

Install the pressure plate, aligning the "0" marks on the

pressure plate and clutch center. PRESSURE PLATE

Slide the clutch center assembly into the clutch outer to

align the discs and plates.
Remove the clutch center assembly from the clutch outer
without disturbing the alignment.

Place spring seat A, the clutch spring, and spring seat B

on the clutch center and compress the spring in a press
just enough to install the circlip.

CAUTION
@ To prevent a loss of tension, do not compress
the diaphragm spring more than necessary to OIL SEAL DRIVER
install the stopper ring. ATIACHMENT

9=16
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 Remove the reversible ratchet and install a torque
wrench.
Tighten the clutch center lock nut to the specified torque.
Torque: 130 I\l-m (13.0 kgwm, 94 ft-Ib)

Bend one lock tab of the lock washer up to the lock nut as
shown.

Install the lifter plate and tighten the bolts.

Torque: 10 I\l-m (1.0 kg-m, 7 ft-Ib)
Apply grease to the clutch lifter piece and lifter rod.
Install the lifter piece and lifter rod.

Install two dowel pins and a new gasket.

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9-17
 Clutch
Clutch (cont'd)

Install the following:

COVER
@ clutch cover.
@ clutch slave cylinder (see page 9-10).

NOTE
=",,,,,_,,,,,_.'.'m,u , , _ n , , , , ~ , , , , , , _ _. , , _ "
~ , , , , '_

~ Release the clutch lever from the handlebar grip and

push the slave cylinder piston in all the way.

@ canister (California model only: page 4-60).

@ left exhaust pipe protector (page 7-29) and heat protec- CLAMP
tor (page 7-32).
@ front side covers (see page 13-8).
Fill the engine with the recommended engine oil (see
page 3-13).

9-18
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 Transmission
Service Information 10-2
Troubleshooting 10-5
Gearshift linkage . . . . .. 10..6
Crankcase Separation . 10..9
Transmission
Disassembly 10..10
Transmission Inspection 10..12
Transmission Assembly 10..14
Crankcase Assembly .. 10..18
Primary Drivel
Driven Gears 10-22
Output Shaft 10..25

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 " "
nsmlSSlon
Service Information

" The gearshift linkage, with the exception of the shift spindle and shift arm, can be serviced with the engine in the
frame.
" The crankcases must be separated to inspect the transmission gears.
" Avoid damaging the pistons against the transmission gears or engine case when separating the crankcase
halves. The pistons will fall as the cases are pulled off them.
" Prior to assembling the crankcase halves, apply a sealant to their mating surfaces. Wipe off excess sealant
thoroughly.
" Maintenance services and repairs of the primary gears and output shaft described in this section must be
performed with the engine removed from the frame.
" For starter clutch removal/installation, see Section 18.

fS~VICE ITEM - - REMOVED COMPONENTS

Gear~s~hi~ft~l~ink~g~e~' Drum center, cam plate, Front engine cover (this section)
and stopper arm
..
=-.-.-.-.w.~=-""-.-.-"·-·-·-_--'.».>.w,_._._._.~,_._._._._._.~~." "-'-'-'''_ _ __-',w.=_·_'"n"
'''''''''''''=~''''''''~'''''''''''''''"''~'

Shift arm and spindle .Crankcase

. . '_,__ separation
._~.~h~~ _ _''''_(below)
_ ~. '''''''__''''''''_ _
Crankcase separation Engine (Section 6)
Secondary air supply system (Section 4)
Water pipe (Section 5)
Timing belts (Section 7)
Left cylinder head (Section 9)
Clutch (Section 9)
Rear case cover (Section 8)
Scavenging pump (Section 8)
Front engine cover and bearing holder (Section 8)

Tra~~missi~L-_~-_o=u-·_n~·~~-.•_r-s=h~a_ft=-~-.:_-a=ri=n·g_--~~-r_o-n~t~~-r--F-r~·~~t-e.~n~g_;·~_~~=-c_o=v~~_r _a-~-.~~_=be=a=r=in-..~.-...h=O=ld=~_·~r-(~-.:_·-c_t-i_O~-....._-8_)~~ .._

Countershaft bearing (rear) Engine (Section 6)
Rear case cover (Section 8) and final drive gear
(this section)
Mainshaft, shift drum, and Crankcase separation (above)
forks
Front engine cover and cam plate (Section 8)
'~----------f-
Engine case separation (above)
Final drive gear (this section)

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 Transmission
Service Information (col1t'd)

12 N-m
(1.2 kg-m,
9 ft-Ibl

Torque Values
Engine case bolt (10 mm) 35 N-m (3.5 kg-m, 25 ft-Ib)
(8 mm) 26 N-m (2.6 kg-m, 19 ft-Ib)
(6 mm) 12 N-m (1.2 kg-m, 9 ft-Ib)
Shift arm lock bolt 25 N-m (2.5 kg-m, 18 ft-Ib)
Mainshaft lock nut (left hand threads) 190 N-m (19.0 kg-m, 137 ft-Ib)
Drum center bolt 28 N-m (2.8 kg··m, 20 ft-Ib)
Shift drum lock cam bolt 12 N-m (1.2 kg-m, 9 ft-Ib)

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 Troubleshooting

Hard to shift into gear

" Air in clutch system
.. Shift forks bent
" Shift shaft bent
" Shift claw bent
.. Shift spindle bolt loose
.. Shift drum stopper bent
" Shift drum cam grooves damaged
@ A & SE: Damaged reverse drum lock system
(Section 18)

Transmission jumps out of gear

@ Gear dogs worn
.. Shift shaft bent
.. Shift drum stopper broken
" Shift forks bent

Excessive output shaft noise

@ Final drive and driven gears worn or damaged
@ Output shaft bearing worn or damaged
.. Excessive backlash between final drive and driven
gears

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 Transmission
Gearshift Linkage
Remova.l

@ The gearshift linkage, with the exception of the shift

arm and spindle, can be serviced with the engine in
the frame.

Remove the following:

@ front engine cover (see page 8-6).
@ drum center, stopper plate, dowel pins, cam plate, and
dowel pin.

o Do not drop dowel pins into the engine case.

Remove the stopper arm.

If necessary, remove the bearing stopper plate and the
shift drum bearing out of the engine case.

Separate the crankcase (see page 10-9).

Straighten the lock washer tab. Remove the lock bolt.
Then remove the shift arms.

Remove the bolt and gearshift arm.

Remove the shift spindle from the left engine case.

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 Inspection
Inspect the shift spindle and shift arm for wear, damage
or bending.
Inspect the shift arm and return springs for weakness or
damage.

RETURN SPRINGS

Check the shift spindle dust seal for damage, fatigue, or

deterioration.
Check the needle bearings for damage or excessive play.

Installation
Install the washer onto the shift arm.
Install the shift arm, aligning the return spring ends with
the pin.

Install the shift spindle onto the left engine case and
install the shift arm (smaller), aligning the arm with the
spindle groove as shown.
Install a new lock washer and the bolt on the shift arm.
Tighten the bolt and bend the lock tab of the lock washer
up to the bolt.
Torque: 25 N-m (2.5 kg-m, 13 fNb)

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 Transmission
Gearshift Linkage (cont'd)
Install the gearshift arm onto the shift spindle, aligning the
punch mark on the spindle with the slot of the arm.
Tighten the bolt securely.

Install the collar and spring as shown.

Install the stopper arm, washer, and flange nut.
Tighten the bolt securely.

Install the dowel pin in the shift drum.

Install the cam plate in the shift drum by holding the shift
arm and stopper arm as shown, aligning the dowel pin
with the slot in the cam plate.

Install the following:

@ four dowel pins to the cam plate
@ stopper plate
@ drum center

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 Tighten the drum center bolt to the specified torque.
Torque: 28 N-m (2.8 kg-m, 20 ft-Ib)
Check that the stopper arm is engaged to the cam plate
and the shift arm is engaged to the dowel pins.
Check the operation of the gearshift linkage.

Crankcase Separation --,,=~---_._~

Remove the necessary components for separation

before separating the crankcases (see page 10-2).
Remove the 22 bolts.
NOTE
-~--~-_._---~~---

" Eight 10 mm bolts have sealing washers.

Place the engine with the right crankcase down.

Pull the shift arm away from the shift drum.
Partially separate the case halves and install the case
supports.
Place shop towels under the pistons to prevent them from
falling onto the transmission when the left case is
removed.
Lift off the left crankcase.

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 Transmission
Crankcase Separation (ccmt'd)

Remove the dowel pins and O-rings.

Clean any liquid sealant off the crankcase mating
surface.

Transmission Disassembly
Separate the crankcases (see page 10-9).

NOTE
@ The mainshaft can be removed without removing the
gearshift linkage.

Remove the mainshaft.

Unstake the mainshaft front bearing lock nut with a drill or

grinder.
Hold the mainshaft with the shaft holder and remove the
lock nut.

NOT.~E=---_~ _ _
@ The mainshaft lock nut has left hand threads.

Tool:
Mainshaft holder
07JMB-MN50200
Disassemble the mainshaft.

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 Remove the following:
o gearshift linkage (see page 10-6).
.. shift drum bearing set plate.
.. shift fork shaft.
.. shift forks.

Remove the shift drum front bearing and remove the shift
drum.

Remove the final drive gear (see page 10-25).

Remove the countershaft front bearing and pull the
countershaft out of the gears.
Disassemble the countershaft gears.

Turn the inner race of each bearing with your finger. The
bearings should turn smoothly and quietly. Also check
that the bearing outer race fits loosely in the crankcase.
Remove the bearing set plate and countershaft rear
bearing, if necessary.
Check the rotation of all bearings.

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 Transmission
Transmission Inspection
Shift Drum Inspection
Inspect the shift drum bearings for smooth rotation.
Inspect the shift drum grooves. They should be smooth
and free of chips and burrs.

NOTE
" Replace the bearings as a set. c~ ~.

A & SE models:
If necessary, remove the shift drum lock cam bolt and
remove the lock cam, dowel pin, and bearing.
Assemble in the reverse order of disassembly.
Apply a locking agent to the shift drum lock cam bolt
threads and tighten to the specified torque.
Torque: 12 Nmm (1.2kg m, 9 ft-I!:»
m

GL1500 I: SHIFT DRUM

If necessary, remove the shift drum bearing set collar bolt

and remove the shift drum bearing set collar and bearing.
Assemble in the reverse order of disassembly. Apply a
locking agent to the shift drum bearing set collar bolt
threads and tighten to the specified torque. SET
COLLAR
Torque: 12 N-m (1.2 kgmm, 9 ft-I!:» BOLT

Shift Fork/Shift Fork Shaft Inspection

Inspect the shift fork guide pins for wear or damage.
Measure the shift fork claw thickness.
Service limit: 5.6 mm (0.22 in)
Measure the shift fork 1.0.
Service limit: 14.04 mm (0.553 in)
Measure the shift fork shaft 0.0. at shift fork surfaces,
as shown.
Service limit: 13.90 (0.541 in)

10-12
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 Transmission Gear Inspection
Check the gear dogs, dog holes, teeth, and bushings for
excessive or abnormal wear, or insufficient lubrication.
Measure the I.D. of these gears.
Service limits:
M4, MS, C2, C3: 34.04 mm (1.340 in)

Measure the 0.0. of these gear bushings.

Service limits:
M4, MS, C2, C3: 33.92 mm (1.335 in)
Calculate the clearance between the gears and
bushings.
Service limit: 0.10 mm (0.004 in)

Check the shifter groove for excessive or abnormal wear.

Shaft inspection COUNTERSHAFT

~
Inspect the mainshaft and countershaft for excessive or
abnormal wear.

10..13
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 Transmission
Transmission Assembly
MAINSHAFf
Clean all removed parts in solvent. Dip them in
clean engine oil before they can be reassembled.

NOTE
____ ·_~_Nh~""""""'~_'''='''·

o Align the oil holes in the bushings with the oil holes in
the shifters to assure correct assembly.

COUNTERSHAH

REAR.
SIDE

~-~ .'-~
- \r---1-

C1~L_-V REAR C2
CENTER " ' C 3
SHIFTER
C5
SHIFTER

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 If removed, install the bearing with the marked side facing
out.
Install the bearing holder with the "OUTSIDE" mark
facing out.
Apply locking agent to the bolt threads and tighten the
bolts securely.

Assemble the C3 gear, C3 bushing, and center shifter as

shown.
Apply molybdenum disulfide oil to the shifter groove.

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 Transmission
Transmission Assembly (cont'cI)

Assemble the C2 gear, C1/C2 bushing, rear shifter,

REAR
washer, needle bearing, and C1 gear as shown. SHIFTER
NEEDLE
NOTE / BEARING
" Install with the longer side of the bushing sliding
surfaces facing toward the C1 gear.
/
,';iF'
,

\
,
Apply molybdenum disulfide oil to the shifter groove.
.
WASHER
LONGER SIDE
C1 GEAR

Install the shift drum.

Apply oil to the washer and temporarily install it next to the
inner race of the bearing as shown.
Install the C5 gear, collar, C4 gear, C3 assembled gear
and assembled gears (above step) to the countershaft as
shown.

" Do not drop the washer into the engine case.

Install the countershaft front bearing as shown.

COUNTERSHAH
Temporarily install the final drive gear and nut to prevent
the countershaft from sliding out of the case (see page
10-29).
OUT
SIDE

Install the M4 gear, M4/M5 bushing, and front shifter onto

M4/M5 BUSHING
the mainshaft.

NOTE
" Install with the longer side of the bushing sliding
surfaces facing toward the M5 gear.

Apply molybdenum disulfide oil to the shifter groove.

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 Install the M5 gear, washer, and bearings onto the main-
shaft.
NOTE
o Install the bearings with their marked side facing out.

Install a new lock nut onto the mainshaft.

Hold the mainshaft with the shaft holder and tighten the
lock nut.
NOTE
@ The mainshaft lock nut has left hand threads.

Torque: 190 Nwm (19.0 kgwm, 137 ftmlb)

Tool:
Mainshaft holder
07JMB-MN50200

Stake the lock nut to the grooves in the mainshaft end

(2 places).

The shift forks have the following identification marks:

" F: front fork
" C: center fork
" R: rear fork

10=17
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 Transmission
Transmission Assembly (cont'd)"

Install the center and rear shift forks into their shifters and
shift drum grooves, with the marked side (C or R) facing
toward the front.
Apply oil to the shift fork shaft.
Slide the shaft into the crankcase and push through all
forks.
Apply a locking agent to the set plate bolt threads.
Install the set plate and tighten the bolts securely.

Install the mainshaft, aligning the front fork with the front
shifter groove and shift drum grooves, with the marked
side (F) facing toward the front.
After assembling, check for smooth movement.

': FRONT FORK

"

Crankcase Assembly
Coat the cylinders, pistons, and piston ring/grooves with
oil. Make sure that the piston ring end gaps are staggered
as shown on page 8-24.
Turn the crankshaft counterclockwise until the T1.2 drive
pulley mark is facing up.
Tools:
(3) Piston Ring Compressors
07JMG-MN5000A
Piston Base "A"
07JMG·MN5012A
Piston Base "B"
07JMG·MN50111
Crankcase Support Blocks
(suitable wooden blocks:
11/ 2 x 11/ 2 x 33/ 8 in., 40 x 40 x 86 mm)
Place shop towels over the transmission.
Install piston base "P:' (plastic) by bending the spring so
that the two outside surfaces are parallel to each other,
with their notches to the outside.
Guide piston base "P:' under the No.4 and NO.6 pistons
(clutch side).
After piston base "P:' stops, let the sides of the tool
straighten until it supports the two pistons.

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 The installed piston base "A" will support the pistons as
shown.
Be sure that the sides of the piston base are straight up
and down.

Install piston base "B" (rubber), with its notch toward the
connecting rod, under the No.2 piston (timing belt side).

Install the ring compressors on the pistons so that their

tapered sides are facing up and the splits are positioned
as shown.

Align the cables from the piston ring compressor as

shown. This will make it easier to remove them.

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 Transmission
Crankcase Assembly (cont'd) ~=~'=-"'~~"'='--

Remove the dowel pin and O-ring on the timing belt side
of the engine to make more room for the crankcase
assembly guide.
Use suitable wooden blocks (1 1/2 x 11/ 2 X 33/8 in., 40 x 40
x 86 mm) as crankcase support blocks, place them as
shown.
Use wire to position the shift arm out of the way.

Hold the crankcase over the NO.2 piston, align the cyl-
inder with the piston, and set the crankcase straight onto
the piston. The crankcase will rest on the crankcase
support blocks.
Remove piston base "B" (rubber).
Slide the ring compressor down on the piston about one-
half inch.
NOTE
@ If a compressor is knocked off a piston, start over.

Pull both cables on the No. 2 piston ring compressor at

the same time to separate the halves. Then remove the
piston ring compressor.
Have an assistant turn the crankcase support blocks on
their sides as shown. Hold the crankcase so that it
doesn't hit the piston ring compressors. Set the crank-
case straight onto both pistons and let it rest on the
support blocks.
Remove piston base "P\' (plastic) by turning the top edge
of the tool inward as shown.
Slide the ring compressor on the NO.6 piston down.
Pull both cables on the piston ring compressor at the
same time to separate the two halves. Then remove the
piston ring compressor.
To remove the NO.4 (center) piston ring compressor, shift
the crankcase away from the transmission as much as
possible to gain maximum clearance.
Then pull both compressor cables back-and-forth until
the halves separate.
Apply sealant to the crankcase.
NOTE
e Be sure to apply sealant to the hard-to-reach sports
as indicated.

Have an assistant hold the case while you remove the

crankcase support blocks and install the dowel pin and
O-ring. Apply sealant to the areas where the crankcase
support blocks were.
Assemble the case.

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 Coat the threads of all 10 mm bolts with oil.

NOTE
@ Tighten all case bolts in a gradual, crisscross pattern.
@ Eight 10 mm bolts have sealing washers.
@ Begin with larger diameter bolts first.

Torque Vah.lles
10 mm Case bolts 35 N-m (3.5 kg-m, 25 ft-Ib)
8 mm Case bolts 26 N-m (2.6 kg-m, 19 ft-Ib)
6 mm Case bolts 12 N-m (1.2 kg-m, 9 ft-Ib)

6x35mm
10 135 mm
ll. BOLTS
BOLTS

8 x 123 man
BOLTS

SEALING
WASHERS

SEALING WASHER

Install the removed parts (see page 10-2).

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 Transmission
Primary Drive/Driven Gears
Removal
Remove the primary driven gear.

Temporarily install the clutch outer and clutch outer

holder so that the oil pump sprocket cannot be rotated.
Tool:
Clutch outer holder
07JMB-MN501 OA
Remove the oil pump driven sprocket bolt and washer,
holder, and clutch outer.
Remove the special tools.
Remove the driven sprocket, drive chain, and primary
driven gear boss as an assembly from the mainshaft.

Remove the spline washer and primary drive gear.

Boss Bearing Replacement PRIMARY DRIVEN

Check the primary driven gear boss for damage GEAR BOSS ~

Inspect the boss needle bearing for excessive play or

abnormal noise.
Replace, if necessary, as shown on the next page.

NEEDLE BEARING

10-22
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 Press the needle bearing out of the boss.
Tools:
Driver
07749-0010000
Attachment, 32 x 35 mm ATIACHMENT
07746-0010100
PILOT
Pilot, 28 mm
07746-0041100

Press a new needle bearing into the boss.

NOTE
DRIVER
o Use the installed height shown below.
ATIACHMENT
PIL01
Tools:
Driver
07749-0010000
Attachment, 32 x 35 mm NEEDLE
BEARING
07746-0010100
Pilot, 28 mm
07746-0041100

Installed Height: 3.5 - 4.0 mm (0.14 - 0.16 in)

3.5-
4.0mm
(0.14-
0.16 in)

installation
Install the primary drive gear onto the crankshaft.

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 Transmission
Primary Drive/Driven Gears (c:ont'd)

Install the spline washer onto the crankshaft.

Install the oil pump sprocket, drive chain, and primary

driven gear boss as an assembly.

NOTE
.. Install the sprocket with the sprocket OUT mark
facing out.

Temporarily install the clutch outer and clutch outer

holder so that the oil pump sprocket cannot be rotated.
Tool:
Clutch outer holder
07JMB~MN50100

Apply a locking agent to the sprocket bolt threads.

Install and tighten the washer and bolt, holding the clutch
outer.
Torque: 18 N-m (1.8 kg-m, 13 ft-Ib)

Align the serrated teeth of the drive gear with the driven
gear teeth, as shown, and install the primary driven gear
onto the driven gear boss.

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 Output Shaft
Removal
Remove the primary drive and driven gear (see page
10-22).
Remove the output shaft as an assembly from the
engine.

Unstake the final drive gear lock nut with a drill or grinder
(2 places). Be careful that the threads on the countershaft
are not damaged.

Set the transmission in any gear. Remove the lock nut by

turning it clockwise.
NOTE
" The lock nut has a left-hand thread.

Tool:
Mainshaft holder
07JMB-MN50200
Remove the spring washer and final drive gear from the
countershaft.

Remove the bolts and bearing set plate.

If necessary the countershaft bearing should be removed
from the engine and be replaced.

10-25
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 Transmission
Output Shaft (cont'd)
Check the final drive gear for damage.
Check if the gear's oil hole is clogged.

Output Shaft Disassemblyllnspect!cm

Turn the outer race of the bearing with your finger. The
bearing should turn smoothly and qUietly.
Also check that the inner race of the bearing fits tightly on
the output shaft.

Remove the snap ring, retainer, and cotters.

Press the output shaft out of the bearing.

Discard the bearing.
Tool:
Pilot, 22 mm
07746-0041000
Disassemble the output shaft.

10..26
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 Check the damper lifter for wear or damage.
DAMPER
DAMPER LIFTER SPRING
Measure the damper spring free length.
Service limit: 57.0 mm (2.24 in)
Check the output shaft, collar, and final driven gear for
wear or damage.

I
Measure the following:
Service limits:
Output Shaft 0.0. 21.99 mm (0.866 in)
Collar 100. 22.05 mm (0.868 in)
0.0. 25.95 mm (1.022 in)
Driven Gel'll" to. 26.03 mm (1.025 in)

Assembly

OUTPUT SHAFT DAMPER SPRING WASHER COLLAR

'-- -- ,,~

REVERSE
DRIVEN GEAR
/ DAMPER
LIFTER
1
FINAL
DRIVEN
GEAR

Install the reverse driven gear, damper spring, damper

lifter, and washer onto the output shaft. REVERSE
DAMPER LIFTER
DRIVEN
GEAR
NOTE
@ Install the driven gear with its dished side facing the
spring.

DAMPER SPRING

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 Transmission
Output Shaft (col1t'd)
Apply oil to the collar.
FINAL DRIVEN
COLLAR
Install the final driven gear and collar, as shown. GEAR ~

OIL

Press a new bearing with the sealed side facing up into

the output shaft.
INNER
Tool: DRIVER B
Inner driver B
07746-0020100
BEARING - -_ _

Install the cotters and retainer.

Rotate the retainer 180 degrees and set the retainer tab
in the opposite position of the shaft key way.

Install the snap ring with the chamfered surface facing

the retainer.
Check the bearing for smooth rotation.

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 Apply a locking agent to the bearing set plate bolt
threads.
Install the bearing set plate with the OUTSIDE mark
facing out.
Install and tighten the bolts.

Aligning the oil holes on the final drive gear and counter-
shaft, install the drive gear onto the shaft.
Install the spring washer with its dished side facing the
final drive gear.

Set the transmission in any gear except neutral.

Apply a locking agent to the threads of a new lock nut and
install it on the countershaft.
Tighten the nut, turning it counterclockwise, to the speci-
fied torque.
NOTE
.. The lock nut has left-hand threads.

Torque: 190 N-m (19.0 kg-m, 1371Nb)

Tool:
Mainshaft holder
07JMB-MN50200
Stake the lock nut (2 places).

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 Transmission
Output Shaft (col'lt'd) --~-~~-

Install the output shaft as an assembly.

Install the primary drive and driven gear (see page
10-23).

10..30
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 Final Drive
Service Information 11-2
Troubleshooting 11-3
Gear Case Removal . . .. 11-4
Drive Shaft . . . . . . . . . . .. 11-4
Universal Joint 11-5
Gear Case
Disassembly 11-6
Gear Case Assembly .. 11-14
Gear Case
Installation 11-17

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 Final Drive
Service Information
@ Refer to Section 3 for final drive gear oil check/replacement.
m Replace all oil seals and O-rings whenever the final drive gear is disassembled.
e Check tooth contact pattern and gear backlash when the bearing, gear set and/or gear case has been replaced.

26N-m
(2'.k._m.~

63 N-m
(16.3 kg-m, 46 «-Il'l)

150 N-m (15.0 kg-m, 108 ft-Il'l)

6?".
10 N-m (1.0 kg-m, 7 ft-Il'l)
20 N-m
(2.0 kg-m, 14 «-Ib)
N-m (11 .• kg-m, BOft-'O)

Torque Values
Pinion bearing retainer 150 N-m (15.0 kg-m, 108 ft-Ib)
Pinion joint nut 110 N-m (11.0 kg-m, 80 ft-Ib)
Gear case cover bolt 10 mm 63 N-m (6.3 kg-m, 46 ft-Ib)
8mm 26 N-m (2.6 kg-m, 19 ft-Ib)
Final drive gear case mounting nut 65 N-m (6.5 kg-m, 47 ft-Ib)
Final drive gear case filler cap 12 N-m (1.2 kg-m, 9 ft-Ib)
Final drive gear case drain bolt 20 N-m (2.0 kg-m, 14 ft-Ib)
Dust guard plate bolt 10 N-m (1.0 kg-m, 7 ft-Ib)
Retainer lock washer bolt 10 N-m (1.0 kg-m, 7 ft-Ib)

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 Troubleshooting
Excessive noise
@ Worn or scored ring gear shaft and driven flange
o Scored driven flange and wheel hub
@ Worn or scored drive pinion and splines
" Worn pinion and ring gears
" Excessive backlash between pinion and ring gear
" Oil level too low

Oil leak
" Clogged breather
" Oil level too high
.. Seals damaged
" Loose cover bolt

Rear wheel will not rotate freely

6 Damaged pinion and ring gear bearing
6 Stuck pinion and ring gear
.. Bent drive shaft

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 Final Drive
Gear Case Removal
Gear Case Removal
Place the motorcycle on its center stand.
Remove the rear wheel (see page 15-10).
Drain the final gear case oil if disassembling the gear
case (see page 3-15).
Remove the four gear case mounting nuts.
Remove the final gear case from the swing arm.

NUTS

Turn the drive shaft. The drive pinion and ring gear should
turn smoothly and quietly.
Check or replace the following if the drive pinion and ring
gear do not turn smoothly and quietly:
.. case
.. each bearing
.. drive pinion
.. ring gear
See page 11-6 for gear case disassembly.

Drive Shaft
Removal
Insert the axle and distance collar through the gear case.
Secure the case in a vise with soft jaws or shop rags by
clamping the axle. Place the shock mount between the
jaws for stability.
Separate the drive shaft from the gear case by gently
revolving the shaft in a circular motion while tugging
slightly.

Disassembly
OIL SEAL
Remove the follOWing:
.. snap ring
.. spring seat
.. spring
.. stopper ring
" oil seal
Discard the oil seal and stopper ring.
Inspect the drive shaft splines for wear or damage. STOPPER RING
SNAP RING

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 Assembly
OIL SEAL
Install the following:
Q a new oil seal
NOTE
" The stopper ring removed during disassembly does
not have to be reinstalled. It is used for production line
purposes.
,----------------
@ spring
" spring seat
" snap ring
See page 11-17 for gear case installation.

Universal Joint
Removalllnstallation
Remove the swing arm (see page 12-26).
Remove the universal joint from the swing arm.

UNIVERSAL JOINT

Inspect the universal joint. There should be no play in the

bearings.
Rotate the shaft and joint in opposite directions. If there is
any evidence of side play, the universal joint must be
replaced.
Apply grease to the splines.
NOTE ~ _
" Install the joint into the swing arm, with the long
splines side to the front.

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 Final Drive
Gear Case Disassembly
Backlash Inspection
Remove the oil filler cap.
Place the pinion joint holder attachment onto the gear
case. Align the holes in the attachment with the four case
studs.
Install the pinion joint holder onto the attachment.
Position the gear case in a soft jaws vise to prevent dam-
age to the case.
Tools:
Pinion joint holder attachment
07924-9690101
(Must be modified: 4 holes increased to 10.5 mm) or
07924-9690·102
Pinion joint holder
07924-ME40000
Set a horizontal type dial indicator on the ring gear,
through the oil filler hole.
Hold the pinion joint holder by hand securely. Rotate the
ring gear by hand until gear slack is taken. Turn the ring
gear back and forth to read backlash.
Standard: O.05~O.15 mm (O.002 O.006 in)
m

Service limit: 0.3 mm (0.01 in)

Remove the dial indicator. Turn the ring gear 120 degrees
and measure backlash. Repeat this procedure once more.
Compare the difference of the three measurements.
Difference of Measurement
Service limit: 0.10 mm (0.004 in)
If the difference in measurements exceeds the limit, it
indicates that either the bearing is not installed squarely
or the case is deformed.
Inspect each bearing and case (as below).
If the backlash is too small, install a thinner ring gear
spacer. If too large, install a thicker spacer (page 11-9).
Backlash is changed by about 0.06-0.07 mm (0.002-
0.003 in) when the spacer thickness is changed by 0.10
mm (0.004 in).
Ring Gear Spacer:
A: 1.82 mm (0.072 in) E: 2.06 mm (0.081 in)
B: 1.88 mm (0.074 in) F: 2.12 mm (0.083 in)
C: 1.94 mm 0.076 in) G: 2.18 mm (0.086 in)
0: 2.00 mm (0.079 in)* H: 2.24 mm (0.088 in)
*Standard I: 2:30 mm (0.091) in)

Ring Gear Removal

Remove the following:
.. dust guard
.. distance collar

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 o case cover bolt
Carefully pry the cover off the case, using a screwdriver
on the pry points as shown.
Remove the case cover, ring gear spacer, ring gear, and
wave washer.

PRY POINTS

If the ring gear stays in the cover, do the following:

Place the cover in a press with the ring gear down.
Make sure the cover is securely supported.
Press the ring gear out of the cover.
Tool:
Attachment, 62 x 68 mm
07746-0010500

Remove the oil seal from the case cover.

Replace the O-ring and O-ring holder with a new one, if

necessary.

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 Final Drive
Gear Case Disassembly (ccmt'd)
Bearing Inspection
Turn the inner or outer race of the ring gear bearings with
your finger. The bearings should turn smoothly and
quietly.
Also check that the outer or inner races fit tightly in the
case or gear.
Remove and discard the bearings if the races do not turn
smoothly and quietly, or if they loosely fit in the case or
gear.
For the ring gear bearing/spacer replacement, see page
11-9.
For drive pinion removal and disassembly, see page
11-10.

Gear Tooth Contact Pattern Check

Clean all sealing material off the mating surfaces of the
gear case and cover.
NOTE
@ Keep dust and dirt out of the gear case.
@ Be ~!~~mage the mating surfaces.

Apply a thin coat of Prussian Blue to the pinion gear teeth

for a gear tooth contact pattern check.
Install the ring gear and its spacer into the cover (see
page 11-16).
Tighten the cover bolts gradually in a crisscross pattern
until the cover evenly touches the gear case Then, while
rotating the drive pinion, tighten the bolts to the specified
torque in 2-3 steps in a crisscross pattern.
Torque:
10 mm bolt: 63 N-m (6.3 kg-m, 46 ft-Ib)
8 mm bolt: 26 N-m (2.6 kg-m, 19 ft-Ib)
CAUTiON
@ It is important to tum the pinion while tightening
the bolts. If the ring gear spacer is too thick, the
gears will lock after only light tightening.
PINION SPACER
Remove the oil filler cap from the final drive case. I NORMAL

Rotate the ring gear several times in both directions.

-- t, I

Check the gear tooth contact pattern through the oil filler
hole. The pattern is indicated by the Prussian Blue
applied to the pinion before assembly. I
I
Contact is normal if the Prussian Blue is transferred to the HEEL - - TOE - ..... HEEL
approximate center of each tooth and slightly to the flank
side.
FACE ~
FLANK
t ~# FACE
FLANK
DRIVE SIDE COAST SIDE

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 If the patterns are not correct, remove and replace the
pinion spacer. Replace the pinion spacer with a thicker
one if the contacts are too high, toward the face. roo HIGH
I
Replace the pinion spacer with a thinner one if the con-
tacts are too low, to the flank side.
The patterns will shift about 1.5-2.0 mm (0.06-0.08 in)
when spacer thickness is changed by 0.10 mm (0.004 in). I

I
Pinion Spacers: I
FACE FACE
A: 1.32 mm (0.052 in) E: 1.56 mm (0.061 in) t~ ~t
B: 1.38 mm (0'{)54 in) F: 1.62 mm (0.064 in) DRIVE SIDE COAST SIDE
C: 1.44 mm (0.057 in) G: 1.68 mm (0.066 in)
D: 1.50 mm (0.059 in)'"
"'Standard

Ring Gear Bearing/Spacer Replacement

Pry the bearing out from the ring gear.

CAUTION
5 Do not damage the ring gear.

If the ring gear assembly was loose against the cover:

Install the suitable spacer (see page 11-6) on the ring
gear.
NOTE
--~._._----------_.

5 If the gear set, pinion bearing, ring gear bearing,

and/or gear case is replaced, install a 2.00 mm (0.079
in) thicl< spacer (standard).

Place a new ring gear bearing over the ring gear shaft.
Use a hydraulic press to seat the ring gear bearing on the
shaft.
Tool:
Oil seal driver attachment
07965-MB00100

RING GEAR

11-9
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 Final Drive
Gear Case Disassembly (ccmt'd)
If the ring gear remained in the cover: Press the ring gear
bearing into the case.
Tools:
Driver
07749-0010000
Attachment (ring gear bearing)
07947-6340100

Install the suitable spacer (see page 11-6) on the ring

gear.
NOTE
RING GEAR

~
.. If the gear set, pinion bearing, ring gear bearing,
and/or gear case is replaced, install a 2.00 mm
(0.079 in) thick spacer (standard).
. ._-~-----

Support the bearing inner race with the inner base, and
press the ring gear into the bearing with a suitable tool.
Tool:
Inner base
07965-3710300

Apply gear oil to the case cover oil seal lip.

Install the ring gear into the case cover. Gently seat the oil
seal lip to the ring gear shaft if the oil seal lip turns inside
out.

Pinion Spacer Replacement

Remove the pinion joint nut.
Tools:
Pinion joint holder attachment
07924-9690101
(Must be modified: 4 holes increased to 10.5 mm)
or 07924-9690102
Pinion joint holder
07924-ME40000

11-10
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 Remove the following:
LOCK WASHER
@ pinion joint
<> retainer lock washer

Remove the following:

o retainer
Tool:
Retainer wrench
07910-4630100

<> pinion assembly

SHAFT PULLER
Tools:
Pinion joint holder attachment
07924-9690101
(must be modified: 4 holes increased to 10.5 mm)
or 07924-9690102
Pinion joint holder
07924-ME40000
Shaft puller
07931 -ME40000
or 0?931-ME4000A (U.S.A. only)

Pull the bearing outer and inner races off the shaft with
the universal bearing puller.
Pull the other inner race off with the same tool.
Tool:
Universal bearing puller
commercially available in U.S.A.
Remove the pinion spacer.

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 Final Drive
Gear Case Disassembly (cont'd)
To reassemble, first install the pinion spacer.
PINION
NOTE
e When the gear set, pinion bearing, and/or gear case
have been replaced, use a 1.50 mm (0.059 in) thick
spacer (standard).

Apply #80 gear oil to the inner races and the bearing.

INNER RACES

Press the bearing and both inner races onto the pinion
gear shaft.
Tools:
Driver, 40 mm 1.0.
07746-0030100
Attachment, 25 mm 1.0.
07746-0030200
NOTE
e Position the marked side of the outer race to the out-
side.

Remove the O-ring and oil seal from the pinion retainer.
Coat a new O-ring with oil and install it on the retainer.
Apply grease to a new oil seal lip and drive it into the
retainer with lip side facing inside.
Tools:
Driver, 40 mm
07749-0010000
Attachment, 52 x 55 mm
07746-0010400

Case Bearing Replacement

NOTE
e The drive pinion bearing cannot be removed. Replace

__~he f~~dri~e case if the bearing is damaged.

Heat the gear case to approximately 80°C (175°F).

e Always wear gloves when handling hot parts.

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 Install the special tool into the ring gear bearing.
SLIDE HAMMER ~

~-'...-'-
Tools:
Adjustable bearing puller, 25-40 mm
07736-A01000A (USA only)
Slide hammer, 3/8 x 16
Commercially available
Using the special tools, pull out the bearing.
Remove the oil seal using the same tools.

Apply grease to the oil seal lips.

Drive a new oil seal into the case.
Drive a new bearing into the case.
Tools:
Driver
07749-0010000
Attachment, 62 x 68 mm
07746-0010500
Pilot, 35 mm
07746-0040800

NOTE
.::.-.,,----

" Drive the first bearing in, stopping before the attach-
ment hits the case.

Blow compressed air through the breather holes in the

case and the cover.

CAUTION
" Hold the bearing to prevent it from rotating
when using compressed air.

11 . .13
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 Final Drive
Gear Case Assembly
Heat the final gear case to approximately eo°c (176°F).
Then place the drive pinion assembly into its housing and PINION
tap it into the final gear case with a plastic hammer until I
the pinion retainer threads can engage the case threads. I
/

HEAT GUN

Screw in the pinion retainer to press the pinion bearing

into place, then tighten it.
Torque: 150 Nmm (15.0 kg-m, 108 ft-Ib)
Tool:
Retainer wrench
07910-4630100

.~.'
Install a pinion retainer lock tab and tighten the bolt.
Torque: 10 N-m (1.0 kg-m, 7 ftmlb)
NOTE
@fO\
~;fW
LOCK
• There are two types of lock washers, as shown. WASHERS

Apply grease to the pinion joint spline.

Install the pinion joint to the pinion.

PINION JOINT

Apply a locking agent to the pinion joint nut threads. Set

the attachment and holder onto the gear case.
Tools:
Pinion joint holder attachment
07924-9690101
(must be modified: 4 holes increased to 10.5 mm)
or 07924-9690102
Pinion joint holder
07924-M E40000
Tighten the nut to the specified torque.
Torque: 110 N-m (11.0 kg-m, 80 ft-Ib)
Remove the tools.

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 If the ring gear assembly was loose against the cover:

Install the oil seal into the cover.

NOTE
" The seal surface should be aligned with the cover
surface.

Apply gear oil to the case cover oil seal lip.

Install the ring gear assembly into the case cover.
Gently seat the oil seal lip to the ring gear shaft if the oil
seal lip turns inside out.

OIL

If the ring gear stayed in the cover:

Measure the clearance between the ring gear and the
ring gear stop pin with a feeler gauge.
Clearance: O.30 O.50 mm (O.012 O.024 in)
m m

Remove the ring gear, if the clearance exceeds the

STOP PIN
standard.
Heat the cover to approximately BO°C (176°F) and

-'----------
remove the stop pin by tapping the cover.

" Always wear gloves when handling the cover

after it has been heated to prevent burning your
hands.

Install a stop pin shim to obtain the correct clearance.

Shim Thickness:
A: 0.10 mm (0.004 in)
B: 0.15 mm (0.006 in)
Install the shim and drive the stop pin into the cover.
11 ..15
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 Final Drive
Gear Case Assembly (cont'd)

NOTE
@ When the bearing, gear set and/or case has been
. replaced, check the tooth contact pattern (see page
11-8) and gear bac[(lash (see page 11-6).

Install a wave washer on the ring gear assembly.

Apply liquid sealant to the mating surface of the cover and
install the cover on the final gear case.
NOTE
=,~,=""=m~··".=,,,=,,~m.=-,~,_n~· ~,==="="= ..= ..""",,,,,=,,_ WAVE WASHER
@ Do not apply liquid sealant to the dowel pins holes. DOWEL PIN HOLES

Apply locking agent to the threads of the 10 mm bolts.

Tighten the cover bolts in a gradual, crisscross pattern
until the cover evenly touches the final drive case. Then, 8 mm BOLT
while rotating the pinion, tighten the bolts to the specified
torque in a gradual, crisscross pattern.
Torque:
10 mm bolt: 63 N-m (6.3 kg~m, 46 fHb)
8 mm bolt: 26 N-m (2.6 kg~m, 19 ft-Ib)

e It is important to tum the pinion while tightening

the bolts. If the ring gear spacer is too thick, the
gears will lock after only a light tightening.
@ Be careful not to damage the case oil seal lips.

Install the dust guard plate and tighten the bolt.

Torque: 10 N-m (1.0 kg~m, 1 ft~lb)

Install the distance collar with its smaller outer diameter

side facing inside.

11=16
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 Gear Case Installation
Apply grease to the drive shaft spline.
GREASE
NOTE
e Do not install a stopper ring on the drive shaft, even
if one was present during disassembly. It is not
necessary.

Insert the drive shaft into the pinion joint spline grooves.

NOTE
@ Be careful not to damage the drive shaft oil seal.

Loosely attach the gear case on the swing arm.

@ To ease axle installation, do not tighten the gear case

mounting nuts until after the axle is installed.
,-~--

Make sure the distance collar is in the final gear case.

Install the rear wheel and torque the bolts and nut (see
page 15-16). Then, tighten the final gear case mounting
nuts.
Torque: 65 N-m (605 kg-m, 41 it-II:» NUTS

Fill the gear case with the recommended oil (see page
3-15).

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'11-17
 Frame/Suspension
Service Information 12..2
Troubleshooting 12..6
Fork Legs 12..11
Shock Absorbers 12..20
Swing Arm 12..16
On..Board Air Compressor
System 12..31
Handlebar Stem 12-41
Steering Stem 12-41

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 Fra uspension
Service Information
" Apply clean suspension fluid to the O~rings when installing the air hoses.
" Always replace bent forks; straightening them will weaken the material.
" A & SE: When inspecting the On-Board Air Compressor System, check the system components and lines step-
by-step according to the troubleshooting chart.
CAUTION
" Always use the center stand when adjusting air pressures. Do not use the side stand when adjusting
the ail' pressure, as you will get false pressure readings.

22 N-m
(2.2 kg-m.
16 ft-Ib)

gON-m
(9.0 kg-m.
65 ft-Ib)

I MODEL:

22 N-m
(2.2 kg-m,
16 ft-Ib)

12 N-m
(1.2 kg-m.
9 ft-I!>)

Torque Values
Anti~dive case socket bolt 8 N-m (0.8 kg-m, 6 ft-Ib)
Fork bottom socket bolt 20 N-m (2.0 kg-m, 14 ft-Ib)
Fork bolt 23 N-m (2.3 kg-m, 17 ft-Ib)
Fork leg upper pinch bolt 22 N-m (2.2 kg-m, 16 ft-Ib)
Fork leg lower pinch bolt 55 N-m (5.5 kg~m, 40 ft-Ib)
Steering adjustment nut 19 N-m (1.9 kg-m, 14ft-lb)
Steering stem nut 100 N-m (10.0 kg-m, 72 ft-Ib)

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 :--.......-'e.....-_ 15 N-m
(1 .5 kg-m. 11 ft-Ib)

100 N-m (10.0 kg-rn. n ft-Ib) @) 12.3 ••.••• 17 ft·'b)

19 N-m (1.9 kg-m. 14 ft-Ib)

(Zi
70 N-m (7.0 kg-m. 51 ft-Ib)

Torque Values
Left shock absorber mount bolt (Upper) 23 N-m (2.3 kg-m, 17 ft-Ib)
(Lower) 70 N-m (7.0 kg-m, 51 ft-Ib)
Right shock absorber mount bolt (Upper) 23 N-m (2.3 kg-m, 17 fl-lb)
(Lower) 23 N-m (2.3 kg-m, 17 ft-Ib)
Swing arm right pivot bolt 100 N-m (10.0 kg-m, 72 ft-Ib)
Swing arm left pivot bolt 19 N-m (1.9 kg-m, 14 ft-Ib)
Swing arm left pivot lock nut 100 N-m (10.0 kg-m, 72 ft-Ib)
Air hose bolt 6 N-m (0.6 kg-m, 4 ft-Ib)
Air hose special bolt (with seat) 15 N-m (1.5 kg-m, 11 ft-Ib)
Air pressure sensor 10 N-m (1.0 kg-m, 7 ft-Ib)
Air distributor solenoid valve mounting screw 3 N-m (0.3 kg-m, 2 ft-Ib)
Outlet air hose joint 6 N-m (0.6 kg-m, 4 ft-Ib)

12-3

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 Frame/Suspension
Service Information (cont'd) -----------------~

System Location (A & SE only)

LCD UNIT

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 Circuit Diagram (A & SE only)
o
ACC. TERMINAL

I - INSTRU::N~
@ @

I
I
I
I
Cd=)
(~)
[J[][]
LCD UNIT (~)
k_.1---.J)
(~) GJD
fWJ6@
@7@
(~)
8
8
I
(, 12 ,)

(IOP.WHT) (~)
~10W4
k__ll..-J) (, 13 1
(llP.WHT) i ....
FUSE BOX
FUSE No CIRCUIT
RELAY BOX
RELAY No CIRCUIT
~
I II 6 AIR PUMP lOA
7 FMKING lOA
5 AIR PUMP

~~LL ~_t:-~~~*:e
I 10 ACC lOA

! .

~~
Effilli ~ f§
=~E*=::'=-_:=-----
1
-...,jl=t::::::t I
(3P·BLK)
~ ..., '- .;.; I I Q'z

~'-~_~I_I_ © !li i STARTER RELAY SWITCH A

~GROUNO.POINT
~ I ,

ra I '"

I (16P.WH~1 (White Lab

~ ~ ~~
A :s
~ f§~
.On Radiator,
-=- _ _ _ ~a::s f§z zf§ ~12""
To:Right Shock absorber

~.... "'---'~L;T-----.:J~---_--l
Near Thermostatic
_ _ _ Fan Motor Switch (2P.WHT) l:? t
B .On Engine. Near
:s I mIni \

~ ~
l ~;.r~.
~
~ ""
• Coo CJ C' •. v,

r:;-- -
.~ Engine. Near
.... lD...J<::::::>
lant Temperature Switch
..,o i. ~..,...J !!~$~$
I
<:) C I I A:
~~~~~~ I Open

(IP"')~ I-~ ~.
Dipstick I

o 'OnFrame,

llW "" (4P·WHT)

. "" 1(22P-Vr'HT)""
...J "
, , (iP·WH·T) a:: a:: .e.
• i • , • • Upper OJ pstlck "Z$$"i mini
$ z
f§
'
.-.
~LT_~U I ~ ."~:
Z
~
...J LT-GRN/YEL
I ...J
L('PWHTtf$
I mIni

_ _ JI~t.
L~
!:! I
-
J
BRN/YEL
LT'GRN!BLK To:Outlet Valve

I :s
T

.n,
BRN/WHT
J ~8LK/YEl- "Z
III
z

~ I IG
•
I
FAN
,I TlI TL2
,l
LT';aK

• 4
~ l~
•~
-,
,•
_

.
f§
~
f§

------
I I
LOCK INCREASE 0 f-O FREE 0~ BLK BlACK BAN BROWN
OFF FREE PUSH 0 f-O FREE
Open
VEL·
BLU
YEllOW
BLUE
ORN ORANGE

~
LT·BLU lIGHT II..UE
ACC 0 -0 DECREASE 0 PUSH 0 K) GRN GREEN LT-GRN lIGHT GREEN
ON 0- ~ ~ ~ 0-f-O INCREASE/DE· OUTLET SWITCH P. CHECK
AIR PUMP
RED· RED Pft( PH<
r'\ CREASE SWITCH
P 0 '-/ -0 SWITCH WHr·· WHITE GRY·· GRAY
IGNITION SWITCH AIR PRESSURE
CONTROL SWITCH

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 Frame/Suspension
Troubleshooting
Wobble or Vibration Hard Suspension
.. Distorted rim. .. Shock absorber improperly adjusted (right).
.. Loose wheel bearing. .. Incorrect fluid weight (high viscosity).
.. Faulty tire. .. Too much air pressure (rear/right).
.. Loose axle. .. Clogged fork hydraulic passage.
.. Loose swing arm pivot bolt. .. Bent fork tubes.
.. Slider binding.
Soft Suspension .. Clogged anti-dive orifice.
.. Weak spring.
.. Insufficient air pressure (rear/right). Suspension Noise
.. Weak rear damper. .. Shock case binding.
.. Insufficient fluid weight (low viscosity). .. Loose fasteners.
.. Insufficient fluid weight (low viscosity).

12-6
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 A & SE only
NOTE
@ Before troubleshooting the On-Board Air Compressor System, check the following fuses:
Fuse 6 (10 A), 7 (10 A) or 10 (10 A) - inside the fuse box.
Main fuse A (30 A) - inside the starter relay switch A.
Main fuse B (55 A) - on the battery case.

AIR PUMP: Check the air pump by turning Pump Does

GROUND LINE: Disconnect the air
the ignition switch to P and pressing the air Not Run pump 2P-WHT connector on the rear
outlet switch. fender. Check for continuity between
GRN terminal of the wire harness side
Pump Runs and ground. Continuity should exist at
all times.
RELAY 5: Turn the ignition switch to ACC,
ON or P, and listen for relay 5 to "Click" Yes ~ No
when the CHECK button is depressed.
Open circuit in GRN
!
@

wire.
Yes No
OUTLET SWITCH: Check the outlet
o switch for continuity (see page 12-36).

RELAY 5: Check for continuity (see page

12-36).
Normal ! Abnormal

Normal ! Abnormal
@ Faulty air pressure
control switch
(OUTLET).
@ Faulty relay 5.
AIR PUMP: Check the air pump for its
POWER TO RELAY COIL: Remove relay operation (see page 12-32).
and measure voltage between the LT
GRN/BLK (+) terminal on the wire harness
side and ground H with the ignition switch
Normal ! Abnormal

ACC, ON, or P. Battery voltage should @ Faulty air pump.

register (see page 12-36).
Open or short circuit in

!
@

wire harness of the outlet

Yes No switch line.
@ Open or short circuit in LT GRN/BLK .. Loose or poor contact of
wire or RED wire. outlet switch connectors.
@ Loose or poor contact of connectors @ Faulty ignition switch (see
of above wires. page 19-20).
@ Faulty ignition switch (see page
19-20).

POWER TO RELAY COIL: Remove relay

and measure voltage between the LT
GRN/BLK (+) terminal on the wire harness
No Continuity .. Open or short circuit in GRNIYEL wire.
side and ground (-) with the ignition switch
ACC, ON, or P. Battery voltage should .. Loose or poor contact of GRNIYEL wire
register (see page 12-36). connector.

~ Continuity

o
12-7
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 Frame/Suspension
Troubleshooting (ccmt'd)

POWER TO RELAY 5: Remove relay 5 POWER TO lCD UNIT (CHECK SWITCH

and measure voltage between WHT/BLK LINE): Turn the ignition switch to ACC, ON,
(+) terminal on the wire harness side and or P. Measure voltage between the BRN/BLU
ground (-). Battery voltage should register (+) line of the instrument 14P-BLK connector
at all times (see page 12-36). and ground (-). Battery voltage should
register with the CHECK SWITCH depressed.

~:p-e-n-o-r-s-h-o-rt=rc-ir-~-uO-it-in-w--ire--h-a-rn...Jess. Yes ! No

1: Loose or poor contact of wire terminals.

SUSPENSION VALVE: Turn the ignition CHECK SWITCH: Check the check switch
switch to ACC, ON, or P and listen for a
for continuity (see page 12-36).
suspension valve (Yellow label) "Click"
when th'3 CHECK button is depressed. ="-"'~Normal
! Abnormal

'~'-r'-y~~~ @ Open or short circuit

in wire harness.
" Faulty check switch.
@ Loose or poor contact of connectors.
., Loose or poor
@ Open or short circuit in BRNNEL wire.
contact of connector.
SWITCHES: Inspect the OUTLET and A.bnormal
INCREASE/DECREASE switches for = _ _ _ _ _~~., Faulty air pressure switch (outlet and/or
continuity (see page 12-36). increase/decrease switches).

l Normal
,.,,".....,,"<

WIRING: Check the BRNNEL, BLK/YEL or Abnormal ~ " Open circuit in wire harness.
LT GRN/BLK wire lines for an open circuit.
I
. " Loose or poor contact of connectors.

"
SOLENOID VALVE: Check the solenoid Abnormal "Faulty solenoid valve O-ring.
valve for operation (see page 12-33).
~'<>-='" ~,,,>,,,,,,----,---
" Faulty solenoid valve (rubber seat).

if""""" l-:. N,~r~_a_I ~_-.

HOSES: Check hoses for damage or A.bnormal D .. Faulty air hoses.
deterioration or loose connection (see page
12-31 ). .. Loose connections of hoses.

AIR DISTRIBUTOR: Check the air passages Abnormal "Faulty steel ball, spring, spring seat, or steel
of the air distributor (see page 12-34). ball seat of the special bolt.
" Clogged air passage in distributor body.
Normal
------""'~~" Faulty shock absorber (right).

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 Suspension system will not decrease pressure, but will increase pressure.

SWITCH: Check the increase/decrease Abnormal. .

switch for continuity (see page 12-36). F---=~" Faulty Increase/decrease sWitch.

Normal

REliEF SUSPENSION VALVE: Turn the

ignition switch to ACC, ON, or P position,
and listen for a suspension valve (White
label) "Click" when the CHECK and »==-__N_O_ _... Open circuit in BRN/WHT wire.
DECREASE buttons are depressed. .. Loose or poor contact of related connectors.

Fa, - -""""--, ,
SOLENOID VALVE: Check the solenoid
valve for operation (see page 12-33).
Abnormal
. ..
»==--~,,_,-_''''' Faulty solenoid valve (rubber seat).

-----.~ .. Clogged air passage in air distributor

(see page 12-34).

The auxiliary air pressure does not work, but the ride and level control works.

OUTLET SWITCH: Check the outlet switch Abnormal "Faulty air pressure control switch (OUTLET).
for continuity (see page 12-36).

Normal
b... ~. . . . Open circuit line or loose contact connectors
in any of the following: battery - ignition
switch - fuse 7 .- outlet switch - air pump.

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 Fra uspension
Troubleshooting (cont'd)

Air compressor system works, but LCD unit display doos not work properly.
WIRING: Disconnect the instrument 14P~BLK
connector and measure the resistance between
the BLK/GRN and GRN/RED wire terminals on
the wire harness side. Normal resistance:
r-----..... .
Abnormal
Loose or poor contact of connectors.
.. Open or short circuit in wire harness.
0.7-1.3 k ohms at 20°C (68° F).
'-'-"='~' Normal

-------------;
WIRING: Check for continuity between same
color wire (LT BLU) terminals of the instrument .. Open circuit in LT BLU wire.
14P~BLK connector and the pressure sensor
3P-BLK connector. .. Loose or poor contact of LT BLU wire
line connectors.

PRESSURE SENSOR: Inspect air pressure Abnormal

sensor (see page 12-34).
~--=--ID> .. Faulty air pressure sensor.

POWER TO lCD UNIT: Tum the ignition switch

to ACC, ON, or P. Disconnect the instrument
10P-WHT connector. Measure voltage between ~__N_O_ _... Open or short circuit in LT GRN/BLK
LT GRN/BLK (+) and ground (-). Battery voltage wire.
should register. .. Loose or poor contact of LT GRN/BLK
wire line connectors.
Yes
CHECK SWITCH: Tum the ignition switch to ACC,
ON, or P. Disconnect the instrument 14P~BLK ~ .. Open or short circuit in BRN/BLU or
_N_O_.....
connector. Measure voltage between BRN/BLU LT/GRN wire. .
(+) and ground (-). With the P. CHECK SWITCH
pushed, battery voltage should register. .. Loose or poor contact of BRN/BLU or
LT GRN wire line connectors.

POWER TO PRESSURE SENSOR: Connect the

10P-WHT connector. Measure voltage between the
BLK/GRN (+) wire on the instrument side and
ground (-). About 5 volts should register with the ~__N_O_ _... Faulty LCD unit (BLK/GRN wire line).
ignition switch tumed to ACC, ON or P.
CAUTION
.. Be careful not to short the BlK/GRN
terminal to ground,

Abnormal .. Faulty speed sensor.

.. Loose or poor connections of the
speedometer cable.
~ ..... " Loose or poor contact of 14P~BLK connector.
.. Faulty shock absorber (right).

12..10
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 Removal
Remove the following:
@ speedometer cable clamp.
" front fender (see page 13-18).
" brake caliper (see page 14-19).
" front wheel (see page 15-5).

CAUTION
-~---,,------'"---
" Support the caliper assembly so that it does not
hang on the brake hose or pipe. Do not twist the
brake hose. Do not bend the brake pipe.

A & SE models: Remove the air valve caps.

I model: Remove the fork bolt cap.
Loosen (but don't remove) the fork bolt.

" The fork bolt is amder high spring pressure. Use

care when loosening the bolt.

Loosen the fork leg upper pinch bolt.

Loosen the fork leg lower pinch bolts and remove the fork
leg.

NOTE
" Be careful not to drop the fork legs when loosening
the bolts.

Fork Slider Needle Bearing Replacement

(1) HYDMUUC PRESS
Remove the pivot collar.
Check the needle bearing for wear or damage. Replace,
if necessary.
Remove the needle bearing, using a hydraulic press with
suitable tools as shown.
Install a new needle bearing in the reverse order of
removal.

(2) SUITABLE TOOLS

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 Frame/Suspension
Fork Legs (cont'd) =~~~~~~-

Disassembly FORK BOLT ASSEMBLY TOOL

SE models: Remove the air valve from the fork bolt. FORK BOLT
ASSEMBLY TOOL
LOWER /

AITAC~
Install the special tool "Fork Bolt Assembly Tool" on the
front fork. ~~\':iu"," ~~ACHMENT
" Align the top of the fork tube with the lower edge of the
window in the tool as shown.
-A,/ ~ ~
[lJ ~ ,
o A&I:

Tool:
Fork bolt assembly tool
R'FO~TUBE
l<'
"
07KMF-MT20300
FORK TUBE
SE: Install the attachment with the protrusion facing
upward.
~ SHAFT
A & I: Install the attachment with the protrusion facing FORK BOLT ASSEMBLY TOOL ~;.-'~.
.
downward.

~i
'~-.:,.
'

Clamp the mounting lug of the tool in the vise securely.

Tum the shaft of the tool in until it contacts with the attach-

~
ment of the tool. I!
Loosen the fork bolt and the shaft of the tool altemately
until the fork bolt thread is removed from the fork tube.

NOTE
..::z>"'-
.~v=v
" ...' I

FORK BObT

-------""~".,,--,,----------
" Do not make a large gap between the shaft and
attachment of the tool when loosening.

After the fork bolt thread is removed, loosen the shaft until
the fork spring load is released from the fork bolt. Remove
the tool from the vise while holding the front fork, then
remove the tool and fork bolt from the front fork.

Remove the spacer, spring joint plate, and spring.

Remove any remaining fork fluid by pumping the fork up
and down several times.

Remove the dust seal and stopper ring.

SOCKET BOLT
\
" Take care to avoid damaging the fork tube while \
removing the stopper ring. \

Hold the fork slider in a vise with soft jaws or a shop towel.
Remove the socket bolt.
NOT,.;;;E=--~_~ ~~ _
" Temporarily install the spring and fork bolt if the
socket bolt is difficult to remove.

12..12
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 Pull the fork tube out until resistance from the slider bush-
ing is felt. Then move it in and out vigorously, tapping the
bushing lightly until the fork tube separates from the
slider. The slider bushing will be forced out by the fork
tube bushing.

NOTE
.. The fork tube bushing must force the slider bushing
out.

Remove the oil seal, back-up ring, and slider bushing

OIL SEAL
from the fork tube
BACK-UP
NOTE IRING

.. Do not remove the fork tube bushing unless it

requires replacement.

Remove the stopper ring, oil lock valve, oil lock spring,

~K
and spring seat from the fork piston.

SLIDER
BUSHING
!~3~E
BUSHING SPRING
STOPPER
RING

Remove the stopper ring from the fork piston.

Remove the oil lock piece from the fork piston. (A & SE:
right side only)
Remove the piston from the fork tube.

STOPPER RING

I model, left side:

Remove the oil lock piece from the piston.
Remove the oil seal, back-up ring, and slider busing from
the fork tube.
OIL LOCK PIECE
NOTE
.. Do not remove the fork tube bushing unless it
requires replacement.

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 Frame/Suspension
Fork legs (cont'd)

Remove the stopper ring from the piston.

Remove the piston and rebound spring from the fork
tube.

STOPPER
RING

Inspection
~
Check the fork spring free lengths and replace the
FREE LENGTH
springs if shorter than the service limit.
Service limit: 382.6 mm (15.01 in)

Check the fork tubes, fork sliders, and pistons for score
marks, scratches, or abnormal wear.
Check the fork piston rings for wear or damage.
Check the rebound spring for damage.
Replace any worn or damaged parts.

Set the fork in V blocks and read the runout.

Actual runout is 1/2 the total indicator reading.
Service limit: 0.2 mm (0.01 in)

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 Inspect the slider and fork tube bushings. Replace the
bushings if there is excessive scoring or scratching, or if
the teflon is worn so that the copper surface appears on
BUSHING BACK-UP RING
more than 3/4 of the entire surface.

~
Check the back-up ring. Replace it if there is any distor-
tion at the check points shown.

CHECK POINTS
COPPER SURFACES

Anti-Dive Case
STOPPER RING
NOTE
" Drain the oil before servicing the anti-dive system.

Remove the four socket bolts and the anti-dive case.

Remove the stopper ring, pivot collar, and boot.

" The anti-dive case is under spring pressure. Use

care when removing the case to keep it from
becoming a projectile. BOOT PIVOT COLLAR

Check the packing, spring, piston, washer, and a-rings

for damage, wear, or deterioration. Replace, if neces- O-RINGS
sary.
Assemble in the reverse order of removal.
NOTE
" Install the packing with its uneven side facing the fork
slider.
" Apply suspension fluid to the a-rings and piston.

Apply a locking agent to the socket bolt threads.

Install the bolts and tighten to the specified torque. SOCKET BOLTS

Torque: 8 N-m (0.8 kg-m, 6 it-Ib)

Check the operation of the piston.

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12..15
 Fram uspension
Fork legs (cont'd) -~~~~

Assembly
Clean all disassembled parts.
/DUSTSEAL PISTON CAP
REBOUND SPRING
~ STOPPER RING
BACK-UP RING

I
NEEDLE \BEARING
\

~
~
~+-,._.
~.-- SLIDER BUSHING
STOPPER
RING
OIL SEAL
FORK TUBE

STOPPE~
RINGS
~
~
~

,
fiii;;

;'"<* 0 8 N-m (0.8 _g-m.

COLL~
FORK
'", / ~
(§'Jtb~® 0 0 tit! 4@ c€i)!
@ ~/ ~ SPACER
17 ft-Ib)

SLIDER
~
r~'
00

Ij
0 1 \~t O-RINGS
BOOT

{jf!if ~
~
U " ~~RING JOINT
"lATE
FORK SPRING

1
20 N-m (2.0 kg.m,
14ft-lb)
PACKING PIVOT
COLLAR
/
FORK TUBE
BUSHING
/'
; ~\ OIL lOCK PIECE
STOPPER
RING SPRING SEAT
OIL lOCK
I model, left side VALVE SPRING
*A &. SE models, left side
DUST SEAL " PISTON

STOPPER RING ~~ RING ' "

~ ~ PISTON
FORK TUBE
Oil SEAL--.-+ ~ ~/
BACK-UP RING

SLIDER BUSHING ~~
...
110 ~

~
\ 23 N-m (2.3 kg-m,
17 ft-Ib)

~.

o
' " FORK SPRING
o:t o ~~ OIL lOCK
~~
~ @ STOPPER PIECE
ft:1J RING

" 2 0 N-m (2.0 kg-m, "

14 ft-Ib) FORK TUBE BUSHING

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 Install a new bushing on the fork tube if necessary.
Place the piston with rebound spring into the fork tuba
Install the oil lock piece onto the fork piston. (A & SE:
rights side only.)
Install the stopper ring onto the fork piston.

OIL
LOCK
PIECE STOPPER RING

Install the spring seat, spring, and oil lock valve on the
piston. Secure them with the stopper ring. OIL SEAL BACK-UP

Install the slider bushing, back-up ring, and oil seal onto
I IRING

the fork tube.

OIL
" Install the back-up ring with its chamfered surface LOCK
side facing down. VALVE
" Check the groove and top edge of the fork tube for
burrs or scratches. Wrap the fork tube groove or top
edge with vinyl tape to prevent damage to the oil seal
lip during installation. SPRING
" Coat a new oil seal with suspension fluid and install it
with the seal mark facing up.

I model, left side:

Install new bushing on the fork tube if necessary. Place
the piston with rebound spring into the fork tube. Install
the stopper ring on the piston.
STOPPER
Install the slider bushing, back-up-ring, and oil seal onto RING

~
the fork tube.

NOTE
" Install the back-up ring with its chamfered surface
side facing down.
" Check the groove and top edge of the fork tube for
burrs or scratches. Wrap the fork tube groove or top
edge with vinyl tape to prevent damage to the oil seal
lip during installation.
" Coat a new oil seal with Pro Honda Suspension Fluid
/USHING
FORK TUBE

SS-8 or equivalent and install it with the seal mark

facing up. OIL LOCI< PIECE

Install the oil seal lock piece on the piston.

SUDER
BUSHING

12.. 11
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 Frame/Suspension
Fork Legs (cont'd) ----~

Place the fork slider in a vise with soft jaws.

SOCKET BOLT
CAUTION
.. Do not distort the slider in the vise.

Temporarily install the fork spring and fork bolt. This will
hold the piston when you tighten the bottom socket bolt.
Apply a locking agent to the socket bolt. Thread it into the
piston. Then, tighten the socket bolt.
Torque: 20 N~m (2.0 kg~m, 14 ft-Ib)
Drive the slider bushing, back-up ring, and oil seal with
the seal driver.
Tools:
Fork seal driver
07947-KA50100 FORK
Fork seal driver attachment SEAL
DRIVER
07947-KF00100

Install the stopper ring and dust seal.

If you installed the fork spring earlier, remove the fork bolt
and fork spring (see page 12-12).
Fill the fork with Pro-Honda Suspension Fluid SS-8 or
equivalent.
Capacity (A & SE):
Right Forie 317 cc (12.7 US OZ, 13.2 Imp 02:) (1) OIL
left Forie 372 cc (12.6 US oz, 13.1 Imp (2) LEVEL

Capacity (I only):
194mm
Right Fork: 371 cc (12.7 US oz, 13.2 Imp oz) (7.6 in.)
left Fork: 361 cc (12.2 US oz, 12.7 Imp oz)
Pump the fork several times.
Compress the fork and measure the oil level from the top
of the tube after the level stabilizes.
Specified level: 194 mm (7.6 in)

12..18
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 Wipe oil off the spring and spacer thoroughly using a
clean cloth.

~
Install the spring with its tightly wound coil end facing
SPACER--+
down.
Install the spring joint plate and spacer. I

Coat the O-ring with Pro-Honda Suspension Fluid SS-8

or equivalent.
Install the fork bolt with an O-ring.
Install the fork bolt and the attachment of the special tool.
Install the Fork Bolt Assembly Toolan the fork tube and
align the lower edge of the tool with the top of the fork
tube.
Tool:
Fork bolt assembly tool
07KMF-MT20300
Clamp the mounting lug of the tool in the vise securely.
Compress the fork spring until the fork bolt thread
contacts with the fork tube thread by turning the shaft of
the tool in.
Turn the shaft in another 1/3 turn after the threads ~ SHAFT
contact. FORK BOLT ASSEMBLY TOOL Cc~
CAUTION ~ r=
@ O"er~tuming the shaft will damage the fork bolt ~
threads.

Engage the fork bolt threads with the fork tube threads by ,~~ FORK BOLT
. <
turning the bolt clockwise.
Screw the bolt threads in more than 5 threads, then
remove the tool from the fork.
Install the fork into the steering stem, and tighten the fork
bolt to the specified torque (page 12-20).
A & SE models: Install the air valve into the fork bolt.

Installation
Place the fork leg into the steering stem.
Aligning the upper surfaces of the fork tube and fork top
bridge, tighten the fork leg lower pinch bolts to the speci-
fied torque
Torque: 55 N-m (5.5 kg-m, 40 ft-Ib)
Tighten the fork.

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 Frame/Suspension
Fork legs (cont'd) ----------------------~
Tighten the fork leg upper pinch bolt (hose clamp) to the
specified torque.
Torque: 11 N~m (1.1 kg~m, 8 fl:mlb)
Tighten the fork bolt to the specified torque.
Torque: 23 Nmm (2.3 kgmm, 11 fl:mlb)
Install the fork bolt cap.

Install the following in the reverse order of removal:

" speedometer clamp.
" front wheel (see page 15-8).
" brake caliper (see page 14-20).
" front fender (see page 13-18).

Shock Absorbers ~~._-­

Removal (left)
Place the motorcycle on its center stand.
Remove the left saddlebag (see page 13-17).
Remove the shock absorber lower mount bolt and upper
mount bolt.
Remove the left shock absorber upward from the frame.

Removal (Right)
Place the motorcycle on its center stand.
Remove the right saddlebag.
A & SE Only:
Tum the ignition switch to ON, P or ACC.
Push the P CHECK and DECREASE buttons of the air
pressure control switch to drain the air pressure until the
display registers 0 psi (0 kg/cm 2).
Turn the ignition switch OFF.
Disconnect the air hose from the right shock absorber.
All Models:
Remove the shock absorber lower mount bolt and upper
mount bolt.
Remove the right shock absorber from the frame.
NOTE....,,--,,._--
"-_ ----_.
" Do not lay the shock absorber on its side. The fluid will
run out.

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 Rubber Bushing Inspection
RUBBER BUSHINGS
Check the rubber bushings of left and right shock
absorber mounts for wear, damage, or deterioration.

Disassembly!Assembly (left)
Set the shock absorber in the shock absorber ATTACHMENT
compressor.
Tools:
Shock absorber compressor
07GME-0010000 or 07959-3290001
Attachment
07959-MB10000
Compress the spring until the spring stopper seat can be
removed. Remove the stopper seat. Disassemble the
SEAT
shock absorber.
NOTE
" Compress the spring while tightening the attach-
ments to keep the shock absorber secure in the
compressor.

Check the damper for deformation, oil leaking, bending of

the rod, or smooth operation.
Check the damper rubber for wear or damage.

CHECK
DEFORMATION
CHECK
OIL LEAKING

12..21
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 Fra uspension
Shock Absorbers (cord'd) =~~~-~~~~~==~-~~~---=

Install the spring with its tightly wound coil end toward the
upper mount. Set the shock absorber in the compressor SPRING
tool.
Tools:
Shock absorber compressor
07GME-0010000 or 07959-3290001
Attachment
07959-MB10000
Compress the spring until the spring stopper seat can be
installed. Remove the compressor.
ATTACHMENT SEAT

Oil seal Replacement (Right)

A & SE models:
Remove the air valve from the outlet air hose.

I model:
Remove the air hose from the shock absorber.
Remove the air valve cap and air valve from the air hose.
AIR VALVE

AIR HOSE
AIR VALVE
CAP

All models:
Install the air valve in the shock absorber. Remove the
core from the valve. /

12=22
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 Remove the rubber boot.
Remove the stopper ring. To do this, the inner backup ring
must be pushed down below the stopper ring.
CAUTION
e Do not press the backup ring in too far or the
guide bushing will jam into the shock case,
making guide bushing removal difficult.

Then remove the stopper ring from the shock absorber.

Clean the shock outer case.
Securely tape a thick plastic bag to the shock's outer
case. The bag will catch the suspension fluid when the
seal comes out.

DUCT
" The seal will come out under hydraulic pressure TAPE
which can be very high. Wear protective cloth m
THE
ing and a face guard to protect yourself from the BAG
suspension fluid.

Clamp the shock upright in a vise with soft jaws.

NOTE
" The shock must be kept upright to keep suspension
fluid from leaking out of the damper and into the outer
case.

Fill the seal remover pump with Honda Suspension Fluid

SS-7 or equivalent. Connect the attachment hose to the
shock's air valve stem.
Tool:
Seal Remover Pump
07971-M01000A
EqUivalent commercially available in U.S.A.
Pump suspension fluid into the shock absorber to force
out the back-up ring, oil seal, and guide bushing.
BACK-UP
NOTE RING

" It takes an average of 2 to 3 minutes of pumping to

force out the seal.

Leave the shock absorber standing vertically for another

10 minutes to let any remaining suspension fluid drain.
Do not tilt the shock absorber.
NOTE
---------,,,,---",----
" Tilting the shock absorber will allow suspension fluid
to flow out of the damper. It is very difficult to replace.

Keeping the shock upright, remove it from the vise.

Remove the plastic bag, back-up ring, the oil seal, and
the guide bushing.
Install the valve core into the air valve.
In one smooth motion, turn the shock absorber upside
down and clamp it in the vise.
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 Frame/Suspension
Shock Absorbers (cont'd) --~~-~-~=~--------~

Fill the shock body with the specified amount of Pro-

Honda Suspension Fluid SS-7 or equivalent.
Oil Capacity: 140cc (4.7 U.S. OZ, 4.9 Imp oz)

I
i~~I--:­
__ I ./_~'_J_/_/_

Install the guide bushing in the damper case.

Wrap a piece of vinyl tape around the groove at the end of
the shock absorber to protect the new oil seal.
Dip a new oil seal in suspension fluid and install it onto the
damper with its lip side toward the damper case.

CAUTION
o Be careful not to damage the oil seal lip during
installation.

Remove the tape from the shock, and remove the shock
from the vise, keeping it upright.
Install the back-up ring.
Press the oil seal into the damper case.
Tools:
Oil seal driver attachment
07965-KE80100
Oil seal driver
07965-MB00100

Install the stopper ring.

CAUTION
@ Be sure the stopper ring is seated all the way
round the stopper ring groove.
,-=-::........~~~~-~--,

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 Install the boot onto the damper case and remove the air
valve from the shock absorber.

NOTE
" Be sure the boot is installed properly onto the damper
case groove.
------------
Keep the shock absorber upright to prevent loss of fluid.

A & SE models:
Apply suspension fluid to the O~ring and install the air
valve to the outlet air hose.
Torque: 6 N-m, (0.6 k~mm, 4 ftmlb)

I model:
Install the air valve with a-ring to the air hose.
Apply suspension fluid to new O-rings and connect the air
hose to the shock absorber.
Tighten the air hose bolt to the specified torque.
Torque: 6 N-m (0.6 k~mm, 4 ft-Ib)

Installation (left)
Install the shock absorber onto the frame.

Tighten the upper and lower mount bolts to the specified

torque.
Torque:
Upper mount bolt: 23 Nmm (2.3 k~-m, 11 ft-Ib)
lower mount bolt: 10 N-m (1.0 kgmm, 51 ft-Ib)
Install the left saddlebag (see page 13-17).

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 Frame/Suspension
Shock Absorbers (cont'd)

Installation (Right)
Install the shock absorber onto the frame.
Tighten the upper and lower mount bolts to the specified
torque.
Torquilil:
Upper Mount bolt: 23 N·m (2.3 kgmm, 11 fNb)
lowililr mount bolt: 23 N-m (2.3 kg-m, 11 fNb)
A & SE models:
Apply suspension fluid to new a-rings and connect the
airhose to the shock absorber.
Tighten the air hose bolt to the specified torque.
Torquilil: 6 N-m (0.6 kg-m, 4 ft-Ib)
NOTE
.. Install the hose vertically as shown.
._~---------

All models:
Install the right saddlebag (see page 13-17).

Removal
Place the motorcycle on its center stand on a level sur-
face.
Remove the following:
.. rear wheel (see page 15-10) .
.. shock absorbers (see page 12-20).
NOTE...
~~ _ _._------------
...
.. Keep the right shock upright with the air hose
connected .

.. final gear case (see page 11-4).

.. battery and battery box (see page 17-7).
LOCK NUT WRENCH
.. brake hose and brake pipe clamps.
.. exhaust chamber and heat protector (see page 7-28).
CAUTION
.. Do not lililt the calipililr hang by the brakilil hOSilil.
Hang it with a wire.
--_._--_._-_._---------
Remove the lock nut on the left side.
Tool:
Lock nut wrench LOCK NUT (lEfT SIDE ONLY)
KS-HBA-08-469

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 Remove the right and left pivot bolts.
Tool:
Hex socket, 17 mm
Remove the swing arm from the frame.
Check the swing arm for deformation or damage.

RIGHT PIVOT BOLT

Pivot Bearing Replacement

Remove the tapered roller bearing from the pivots.
Inspect the tapered roller bearings and races for damage
or wear.
Check the bearing dust seals for damage or wear.
Replace, if necessary.
NOTE
" Always replace pivot bearings. races, and grease
holders in pairs.

Check the grease holders for damage or deformation.

Check the grease holder dust seal (right side only) for
damage or fatigue.

Remove the right outer race with the grease holder.

Tools:
Bearing outer race remover
07936-8890300
Handle
07936-3710100
Weight
07936-3710200

PIVOT BEARING OUTER RACE

REMOVER

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 Frame/Suspension
SwingArm~o~~~~~~~~~~~~~~~~~~~~~~~~

Remove the left outer race with the grease holder with
suitable tools as shown.

Install the grease holders.

NOTE DRIVER

.. Install the grease holder with dust seal into the right
side. ATIACHMENT

Drive the new bearing races squarely into the swing arm.
Tools:
Driver
07749-0010000
Attachment, 37 x 40 mm
07746-0010200

Apply grease to the right grease holder dust seal lip.

DUST SEAL UP ~

Pack the tapered roller bearings with grease. Apply

grease to the bearing dust seal lips.
install the bearings into the swing arm pivots.

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 installation

Lubricate the universal joint splines with grease.

Place the universal joint in the swing arm, with the long
splines to the front.

Position the swing arm in the frame

Grease the tips of the pivot bolts and loosely install them.
NOTE
" Make sure that the ends of the pivot bolts are inside
the bearing inner races.
----,-------,

SWIIIIG ARM

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 Frame/Suspension
Swing Arm (cont'd)

Slide the universal joint onto the final drive shaft.

Tighten the right pivot bolt.

Torque: 100 Nam (10.0 kg-m, 72 ft-Ib)
Tool:
Hex socket, 17 mm

Tighten the left pivot bolt.

Torque: 19 N-m (1.9 kgam, 14 ft-Ib)
Move the swing arm up and down several times to seat
the bearings.
Then retorque the pivot bolt.
Tool:
Hex socket, 17 mm

Install the pivot lock nut on the pivot bolt.

Hold the pivot bolt and tighten the pivot lock nut to a
torque wrench reading of 90 N-m (9.0 kg-m, 65 ft-Ib).
Tool:
Lock nut wrench
KS-HBA-08-469
NOTE
o Because the lock nut wrench increases the torque
wrench's leverage, the torque actually applied to the
lock nut is the specified torque value: 100 N-m (10.0 lOCK
" / NUT
kg-m, 72 ft-Ib).

Install the removed parts in the reverse order of removal.

12=30
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 On=Board Air Compressor System
Air Ho~s Inspection (A & SE only)
Check the air hoses for loose connections, damage, or
deterioration.
If the air hose connection is loose, tighten bolt "A" or "8"
as shown to the specified torque.
Torque:
"A" 6 N-m (0.6 kg-m, 4 ft-Ib)
"8" (Special) 15 N-m (1.5 kg-m, 11 ft-Ib)

Air Pump
-Removal
Remove the trunk and left saddlebag (see page 13-14).
Remove the rear fender (rear) mounting bolt.
Disconnect the 2P-WHT connector at the connector
holder on the rear fender.
Remove the air pump mounting bolts and collars and the
air pump from the frame.
Disconnect the air hose bolts. Remove the air pump from
the air hoses.

NOTE
o Do not remove the screw.

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 Fra uspension
On=Board Air Compressor System (cont'd)
- Drier Disassembly/Assembly
Check the color of the desiccant. It should be blue
If it isn't, replace the desiccant.
Remove the set ring. Then disassemble the drier
as shown, if necessary.
Check the packings for dirt or moisture. Replace, if
necessary.
Clean the inside of the body and the cover open-
ings with compressed air.
Assemble the drier in the reverse order of dis-
assembly.

- Ail' Pump Inspection

Use a 12V battery to energize the pump motor and check
its operation.
NOTE
" Do not dissassemble the air compressor.

AIR
COMPRESSOR

- Installation
Apply suspension fluid to new O-rings and connect the air
hose bolts. Tighten the bolts to the specified torque.
Torque: 6 N-m (0.6 kg-m, 4 ft-Ib)

NOTE
" Install each hose as shown.

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 Install the air pump onto the frame.
Install the following:
., rear fender (rear) mounting bolt.
.. 2P-WHT connector.
., saddlebag (see page 13-17) and trunk (see page
13-15).

Air Distributor
~Removal

Remove the trunk (see page 13-15) and right saddlebag

(see page 13-17). Disconnect the 3P-BLK and 3P-RED
connectors at the connector holder on the rear fender.
Remove the air hose bolt (output side) and disconnect
the air hose from the distributor body.
Remove the air distributor from the rear fender.
~~/
Remove the air hose bolt (input side) and disconnect the
air hose from the distributor body.
N
AIR HOSE BOLT
(OUTPUT)
NOTE
., The hose joint contains a steel ball, spring seat, and
spring. Be careful not to drop these. Inspect the
O-ring and steel ball seat for damage or deterioration.
Inspect the spring seat and spring for damage.
--_._.-
Disconnect the relief valve drain tube and remove the air
distributor as an assembly.

~ Solenoid Valve Inspection

Connect a pressure pump to the suspension valve
(yellow label) output port and apply pressure.
Tool:
Pressure pump
SUSPENSiON
ST-AH-255-MC7 VALVE
If pressure does not remain steady replace the O-ring or
suspension valve with a new one.
While maintaining pressure, apply battery voltage
between the BRN/YEL and GRN terminals of the
3P-RED connector.
If pressure is not relieved through the air distributor,
install a new solenoid valve. '-'-' +II>=C::=-
PRIESSURE~
If pressure remains steady even when the solenoid valve PUMP
is activated, clean the air passage in the air distributor
(see page 12-34).

12-33
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 Fram uspension
On Board Air Compressor System (cant'd)

Connect a vacuum pump to the relief valve (White Label)

relief port and apply vacuum.
Tool:
Vacuum pump
ST-AH-260-MC7
If vacuum does not remain steady, replace the C-ring or
relief valve with a new one.
VACUUM
While maintaining vacuum, apply battery voltage /' PUMP
between the BRNIWHT and GRN terminals of the .-=:N.
3P-RED connector.
If vacuum is not relieved through the air distributor, install
a new relief valve.
If vacuum remains steady even when the solenoid valve
is activated, clean the air distributor relief port.
.- Ail' Pressure Sensor Inspection AIR PReSSURE
SENSOR
Remove the air pressure sensor from the air distributor
body.
Measure the resistance between the sensor connector
BLKlGRN and GRN/RED terminals.
Standard: O.7 1.3K ohms (20°C/68°F)
m
\
Measure the resistances between the BLKlGRN and LT
BLU terminals, and LT BLU and GRN/RED terminals of
the sensor by applying gradually increasing pressure
from 0 to 4 kg/cm 2 (0-57 psi).
Tool:
Pressure pump
ST-AH-255-MC7
The resistances between the BLKlGRN and LT BLU
terminals should decrease proportionally as the pressure
increases.
The resistances between the LT BLU and GRN/RED
terminals should increase proportionally as the pressure
increases.

"- Air Distributor Passage Cleaning

Remove the solenoid valves and air pressure sensor
from the air distributor body.
Use compressed air to clean all the air passages of the air
distributor body.

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 ~ Assemblyllnstallation
Assemble and install in the reverse order of removal!
disassembly.

NOTE
.. Clean all parts before assembly.
.. Apply a thin coat of ATF to all a-rings.
.. Make sure the rubber solenoid valve seats are in
place during assembly. Check each valve for proper
seating .
.. Torque the parts as indicated.
,------------~

3 N-m 10.3 kg-m.

2 ft-lb)

/ ~NSION
6 N-m (O.G kg-m. 10 N-m (1.0 kg-m,
4 ft-lb) 7 ft-Ib)

~
s;7iow VALVE
LABELl

f~
REUEf
VALVE
(WHITE LABEL)

~~

~"
15 N-m 11.5 kg-m.
6 N-m 10.6 kg-m.
4 ft-lb)
11 ft-lb)
AIR DISTRIBUTOR BODY

Air Pressure Control Switch

~ Inspection
Remove the right fairing inner cover (see page 13-12).
Disconnect the 6P-WHT connector of the air pressure
control switch.
Remove the air control switch from the right fairing inner
fender by releasing the locking tabs of the switch box.
Check for continuity between the terminals indicated on
the next page.

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 Frame/Suspension
On..Board Air Compressor System (cont'd)
Continuity should exist between the color coded wires in Outlet Switch
the charts as shown.

~
BRNI BRNI LT GRNI LT GRNI
Increase/Decrease Switch Switch VEL WHT VEL BLK
Position

~
-".
LT GRNI BRNI BRNI Free 0-. ~
Switch BLK VEL WHT
Position "
",,'"
Push
~~~. m. .0 .0
Increase 0 .0 P. Check Switch ,

~
Free
m=wm
-~
Switch LTGRN BRN/BLUE
Decrease 0 .0 Position
-
Free
Push 0 ~'"
.0

Air Pump Relay (Relay 5 in the relay box)

- Operation Inspection
Open the relay box cover under the left rear side cover.
Turn the ignition switch to ACC, ON, or P position.
Depress the P. CHECK button.
The relay primary coil is normal if it clicks.

- Continuity Inspection
Remove the relay.
Connect an ohmmeter and 12 V battery to the relay as
shown. The relay is normal if there is continuity.

- Wiring Inspection
Measure voltage between the LT GRN/BLK (+) terminal
on the wire harness side and ground (-) with the ignition
switch ACC, ON, or P.
Battery voltage should register.
Measure voltage between the WHT/GRN (+) terminal on
the wire harness side and ground (-).
Battery voltage should register at all times.

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 Handlebar
Remov~1
Remove the following:
" Clutch master cylinder
" Left switch housing
" Front brake master cylinder
" Right switch housing
" Throttle grip
" Handlebar cover set plates
" Handlebar covers
" A & SE: Handlebar center cover

NOTE
e Using wires, hang the clutch and front brake master
cylinder at least as high as the position originally
installed to prevent air getting into the master cylin-
der.
e Do not twist the brake or clutch hoses.

Release the right handlebar switch wire harness from the

clamp.
Remove the wire band from the handlebar.
Remove the handle upper holders and handlebar.

WIRE BAND

Install the handlebar onto the steering top bridge, aligning

the punch marks on the handlebar with the top bridge
upper edge.
Install the handlebar upper holders with the punch marks
on them facing forward. Tighten the holder bolts.
Torque: 25 Nmm (2.5 kgmm, 18 ftmlb)

NOTE
" Tighten the holder bolts front side first, then tighten
the rear side.

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 Frame/Suspension
Handlebar (cont'd)
Install the wire band onto the handlebar.
Clamp the right handlebar switch wire harness securely
with the center clamp.

Install the handlebar cover (each side).

Secure the upper end of the handlebar covers by fasten-
ing the tab at the upper end.

Install and secure the handlebar cover set plates with the
screws.

NOTE
.. Install the set plate with its shorter edge forward.

A & SE models:
Install the handlebar center cover securely.

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 If the hand grips were removed, apply Honda Bond A or
Honda Grip Cement (U.S.A. only) to the inside surfaces
of the grips and to the clean surfaces of the left handlebar
and throttle grip. Wait 3-5 minutes and install the grips.
Rotate the grips for even application of the adhesive.

NOTE
" Allow the adhesive to dry for an hour before using.

Install the choke cable onto the cable holder. CABlE HOWER

Install the left switch housing to the handlebar, aligning

HOUSING
the boss of the housing with the hole in the handlebar.
Set the choke cable holder securely into the housing
groove.
""~I
Secure the housing with the screws; tighten the forward
screw first, then the rear screw.

Install the clutch master cylinder and holder, aligning the

end of the holder with the arrow mark on the handlebar
cover.
Install and tighten the holder bolts.
Torque: 12 Nam (1.2 kgmm, 9 ftmlb)
Connect the clutch switch connectors.
A & SE: Connect the cruise control cancel switch con-
nectors.
A & SE: Install the holder cap.
CRUISE CANCEL SWITCH
CONNECTORS (A St SEI

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 Frame/Suspension
Handlebar (cont'd)
Coat the throttle grip sliding surface and throttle cable
ends with grease.
Install the right switch housing to the handlebar, aligning
the boss of the housing with the hole in the handlebar.
Set the throttle grip securely into the housing groove.
Connect the throttle cables to the grip.
Secure the housing with the screws; tighten the forward
screw first, then the rear screw.

Install the brake master cylinder and holder, aligning the

end of the holder with the arrow mark on the handlebar
cover.
Install and tighten the holder bolts.
Torque: 12 N-m (1.2 kg-m, 9 it-Ib)
Connect the brake switch connectors.
A & SE: Connect the cruise cancel switch connectors.
if)'
A & SE: Install the holder cap.
L,:~_J
BRAKE SWITCH
HOLDER CAP
CONNECTORS
(A 8t SE)

Securely clamp the throttle cables with the right handle-

bar clamps.

CLAMPSL-

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 Removal
Remove the stem under cover from the steering stem. (It
isn't necessary to remove the fairing to remove the stem
under cover.)

Unfasten the T-stud clips at the lower side of the ignition

switch.

NOTE
o Do not remove the T-stud clips from the frame.
The T-stud clips cannot be reused if removed.

A & SE only: GROMMET

Remove the steering stem grommet and slide it all the (A& SE)
way to the wire harness.

CAUTION
m Apply a soapy water solution to the wire harness
surface to allow the grommet to slide smoothly.

Remove the retaining screws and move the turn signal

cancel control unit enough to disconnect the unit con-
nector.

NOTE
.. If necessary, slide the steering stem grommet up
farther.

Disconnect the turn signal cancel control unit connector.

Remove the turn signal cancel control unit wire out of the
steering stem. TURN SIGNAL "
CANCEl. CONTROL UNIT " ,

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 Frame/Suspension
Steering Stem (cont'd)
Remove the following parts.
" Handlebar (see page 12-37).
" Front wheel (see page 15-5).
" Front fender (see page 13-18).

NOTE
" The steering stem can be removed without removing
the fairing.

Remove the steering stem nut.

Tool:
Socket, 30 mm
Remove the fork legs (see page 12-11) and top bridge.
Straighten the lock washer tabs. Remove the lock nut
and lock washer.
Hold the steering stem to keep it from falling while you
remove the steering adjustment nut and the steering
stem.
Tool:
Steering stem socket
07916-3710100
Check the top and bottom bearings and races for wear or
damage and replace if necessary.

CAUT::.::.IO:.:N.:........... ~

" Steering head bearings and races are supplied

in matched sets to ensure a precision fit
Remove and install complete sets. Do not mix
replacement bearings or races with original
parts.
" If there has been collision damage, inspect the
steering head for cracks, deformation, and mis~
alignment before you install new f'l:'Ices.

Bottom Be~ring Repl~cement

Remove the bottom bearing with a hammer and a drift.

NOTE
" Install the stem nut on the top end of the steering stem
to prevent damage to the threads.
" The bearing and dust seal will be damaged during
removal. Install new parts.
,-----------

12..42
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 Install a new dust seal and drive a new bearing into place.
Tool:
Steering stem driver
07946-MBOOOOO

NOTE
.. Replace the dust seal and bearing whenever they are
removed from the steering stem.

Bearing Race Replacement

Inspect the top and bottom races and replace if worn or
damaged.
Drive out the top race and then the bottom race.
Tools:
Top race: Ball race remover
07953-4250002 or 07736-A01000A
Bottom race: Ball race remover
07953-4250002
Bearing race remover
07946-3710500
BEARING
NOTE RACE
~---
.. Always remove the top race before driving out the REMOVER
bottom race.

Install a new bottom race.

LARGER INNER
Tools: I DIAMETER I
Driver r-'-~---l
07749-0010000
Attachment, 52 x 55 mm
07746-0010400
NOTE
.. The bottom race has a larger 1.0. than the top race.
Be sure to install the races properly.
.. Drive the races in squarely until they seat fully.

Install a new top race.

Tools:
Driver
07749-0010000
Attachment, 42 x 47 mm

.~SMAll --I
07746-0010300

NOTE INNER
DIAMETER
.. Drive the races in squarely until they are fully seated. ATTACHMENT

12..43
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 Frame/Suspension
Steering Stem (cont'd)

Il1stallaticnl

S'
A & SI':: STEERING STEM
r-'~ ~LOCKNUT
SUB WIRE
HARNESS /. . ~ LOCK WASHER
~
STEERING -------
STEM ~ ~I I ,
'~
~
/ STEERING
ADJUSTMENT NUT
~, / ~UPPERBEARING

I I® TOP RACE

L__ ._j : : : : : BOTTOM RAC'

~:::~~ - ~ LOWER BEARING
DUST SEAL

Pack the bearing cavities with grease.

Install the steering stem through the steering head with
the steering stem top bearing.
Install the steering adjustment nut.
Tighten the steering stem adjustment nut as follows:
1. Tighten the adjustment nut to 40 N-m (4.0 kg-m,
29 ft-Ib).
2. Turn the steering stem lock-to-Iock five times to seat
the bearings.
3. Loosen the adjustment nut until it is hand-tight.
4. Then retighten to the specified torque. STEERING STEM

Tool:
Steering stem socket
07916-3710100
Torque: 19 N-m (1.9 kg-m, 14 f1-l1:»)
Repeat steps 2, 3, and 4 above.
Then repeat steps 2 and 4 a third time, (do not loosen the
adjustment nut).

" Improper adjustment of the steering stem adjust-

ment nut (too loose or too tight) may cause handle-
bar oscillation, cornering instability, or excessive
noise during braking.

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 Install a new lock washer, aligning the tabs with the nut
grooves. LOCK WASHER
NOTE LOCK NUT

o Always use a new lock washer.

~_.»~---~_ .._------------ TAB
Hold the adjustment nut and hand tighten the lock nut to
align its grooves with the lock washer tabs.
NO~TE~ _
____ I
o If the lock nut grooves cannot be easily aligned with
the lock washer tabs, remove the nut, turn it over, and STEERING
ADJUSTMENT NUT
reinstall it.

Bend the other two lock washer tabs up into the lock nut
grooves.
LOCK NUT
Temporarily hold the front fork legs by tightening the
lower fork pinch bolts.
Install the steering top bridge and tighten the steering
stem top nut.
Tool:
Socket, 30 mm
Torque: 100 N-m (10.0 kg-m, 12 ft-lb)
Loosen the lower for pinch and install the fork legs (see
page 12-19).
Install the following:
o Front fender (see page 13-18).
o Front wheel (see page 15-8).
Place a stand under the engine and raise the front wheel
off the ground.
o
Position the steering stem to the straight-ahead position.
Hook a spring scale to the fork tube and measure the
i\
!o\~o\
n (\
steering head bearing preload. I
o 0
NOTE
o Make sure that there is no cable and wire harness
interference.

The preload should be within 1.8-2.2 kg (4.00-4.85 Ib) for

right and left turns.
If the readings do not fall within the limits, lower the front
wheel to the ground and adjust the steering stem adjust-
ment nut (see previous page).

o Incorrect steering head bearing preload may

cause handlebar oscillation, cornering instabil-
ity, or excessive noise during braking.

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 Frame/Suspension
Steering Stem (cant'e!)

A & SE models:
Put the turn signal cancel control unit wire harness
through the steering stem.
Connect the connector to the unit.
Install the unit into the steering stem and secure it with the
screws.

Slide the steering stem grommet and install it onto the

steering stem nut.

NOTE
.. Apply a soapy water solution to the wire harness
surface to allow sliding the grommet smoothly.

All models:
Install the handlebar (see page 12-37).
A & SE models:
Install the handlebar center cover securely.
All models:
Fasten T-stud clips at lower side of the ignition switch.

NOTE
@ Do not remove the T-stud clips from the frame. The
T-stud clips cannot be reused if removed.

Install the stem under cover, inserting its tab between the
turn signal cancel control unit plates.
II I
_-'----'---'-_-'---_--"----J
Tighten the brake hose holder screws.

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 Fairin ,oay Components

Service Information 13~2

Windshield 13~3
Fairing . . . . . . . . . . . . . . .. 13~6
Trunk/Saddlebags . . . . .. 13-14
Front Fender 13-18
Rear Fender . . . . . . . . . .. 13-19
Adjustable Passenger
Footrests (SE) . . . . . .. 13-20
Footrests 13-22

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 Fairin ody Components
Service Information
.. When removing a cover, be careful not to damage any
tab or groove.
.. Installation is reverse of removal, unless noted
otherwise

13-2
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 Windshield
Replacement
ALIGN
Release the spring clamp from the fairing groove and free
the mirror covers.

Remove two scews.

A & SE: Remove the windshield trim from the windshield
height adjustment level tension plate.
Free the trim grooves from the fairing tabs and remove
the trim from the fairing.

GROOVES

Remove the screws and windshield.

Install a new windshield. Align the setting plates with the
holes of the windshield and tighten the screws securely.

NOTE
.. Position the two larger setting plates on both ends.
.. Make sure the windshield can be moved up and down
to the desired position.

Position all screws in the same (upper or lower) position.

Install the remaining parts in the reverse order of

removal.

13..3
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 Falrin Components
Windshield (col'lt'd)

Center Fresh Air Visor (Sf only)

Removal
Remove the windshield.
Remove the two screws, center fresh air visor and grille.
Remove the screw, lever cover, lever, spring, steel ball
and plate from the visor.

Installation
Install the plate onto the visor, aligning the hole in the
plate with the pin on the visor.
Install the spring and steel ball into the lever, then install
the lever, cover and screw securely.
Install the grille and visor on the windshield, aligning the
tab on the grille with the slot in the visor.
Install, then tighten the screws securely.

Windshield lever Replacement SCREW

(A & Sf only)
Remove the nut, screw and windshield lever.
Remove the screw and plate.
Install the windshield lever (as shown) in the reverse
order of removal.

" Align the slit of the lever with the index line on the lever
shaft as shown.

Windshield lever Adjustment (A & Sf only)

NOTE
~~"-"'''-_.._-~~-------~---

" If the lever is removed, adjust the lever as follows:

Step 1:
Install the windshield.
Remove three screws and the mirror (each side).
SCREW

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 Step 2:
Loosen the screw as shown (each side).
Temporarily tighten the screw on the other side. (Do not
tighten the screw on the side being adjusted.)

Step 3:
Set the lever at the upper position.
Push the windshield trim and, at the same time, tighten
the screw as shown.

Step 4:
Set the other side lever at the lower position.
Measure the windshield lever preload. The scale should
average 5.0-8.0 kg (11.0-17.6 Ib) for the heaviest pre-
load.
If the preload is not within the above specification, loosen
the screw and return to Step 3.
For the other windshield lever, perform Steps 3 and 4.

Step 5:
WIND- 20 kg (44 Ib) MAX.
Make sure the lever can be operated smoothly.
With both levers at the lower position, check that the SHIE~~c-----_t \
windshield does not move up and down by applying a
force which does not exceed 20 kg (44 Ib).

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13-5
 Fairin
Fairing _ Components
NOTE --_. -"--~
~ det
Re"'~m-o:;th--'-'"''~'"'-'''
. e fairing fol/
. __....... __.._
ailed instru
__clans
=.~-~_._ . .-
t'.., ,_'_
seoWing steps
e pages 13-81through
through-"4 ' -For
13-12

Step" .

Step 2:

Wf>INNER
COVER (RIGHT)

13=6
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 Step 3:

Step 4:

FAIRING

~- FRONT GRILLE

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 Fairin Components
Fairing (col"it'd)

seat
Remove the four bolt caps, socket bolts, and grips.
Lift up on the rear of the seat to release the hook from
under the top compartment bracket. Remove the seat.

Rear Side Cover

Release the cover's three bosses from the three rubber
holes on the frame.
Free the rubber hole from the top compartment bracket
bolt.
Remove the rear side cover.

HOLE

Front Side Cover

Release the cover's two bosses from the frame rubber
holes. Release the cover front tab from the fairing inner
cover groove.
Remove the front side cover.
Remove two screws and separate the cover. FRONT
SIDE
COVER

Left Fairing Pocket

Remove four screws.
Remove the left fairing pocket.

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 Right Fairing Pocket
Remove the pocket cover with the ignition switch key.
Remove the four screws.
Remove the right fairing pocket.

Ignition Switch Cover

Release the cover's two bosses from the top
compartment rubber holes.
Release the cover front tab from the instrument panel.
Remove the ignition switch cover.

Top Inner Cover

Remove the top inner cover by releasing its tabs from the
fairing.

Top Compartment
TOP COMPARTMENT
Remove the following: COVER
.. fairing pockets (see above) .
.. ignition switch cover (see above) .
.. top inner covers (see above).
.. seat (see previous page).
Open the top compartment cover.
Turn the clamps as shown.

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 Fairin ody Components
Fairing (cont'd)

Remove the cap nuts and top compartment.

TOP COMPARTMENT

CAP NUT

A & SE models: RADIO CORD

Pull the rubber boot back enough to allow disconnecting
the radio/cassette deck wire harness connectors and
radio cord from the radio/cassette deck.

WIRE HARNESS
CONNECTORS

Push the lever and remove the radio/cassette deck cover

from the top compartment.
Remove the four screws and radio/cassette deck from
the top compartment.

CAUTION WIRE HARNESS

" Route the radio/cassette deck wire harness
pro~rly as shown.

.. Do not block the air inlet hole during instal m

lation, or the cruise control will not disengage.

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 Instrument Panel FRESH AIR OUTERS
Remove the following:
" top compartment (see page 13-9).
" rear view mirror (see page 13-3 and Windshield Lever
Adjustment, page 13-4).
Remove the screw and headlight vertically adjusting
knob.
Remove the plastic nut and washers.
Remove the fresh air outers from the instrument panel.

GL1500SE:
" Remove the exhaust pipe protector lid opener from
the instrument panel (see page 7-31).

A & SE: Set the windshield lever at the upper position.

Release the windshield trim from the windshield.
Remove the instrument panel from the fairing.

Fairing Front Cover

Release the cover's two bosses from the rubber holes of
the fairing lower covers by pressing in on the fairing front
cover.
FAIRING
Release the cover lower tabs from the under cover FRONT
grooves. COVER TABS

Remove the fairing front cover.

Under Cover
Remove the following:
" fairing front cover (see above).
Remove three screws and the under cover.

Radiator Shroud
Remove the fairing front cover (see above).
Remove the two cap nuts.
Remove the radiator shroud.

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 Fairin ody Components
Fairing (cont'd) =-~~~-~~---~~~~~-~----~--~

fairing lower Cover

Remove the fairing front cover (see page 13-11).
Release the stopper of the cover from the under cover
hole.
Release the stopper of the radiator shroud from the cover
hole.

STOPPER

Remove the deflector cap.

Remove the screw and deflector.

Remove the side holders.

SIDE LENS
Remove three screws, the fairing lower cover, and the
side lens.

'

\/Q~'~"~~~'~I
SE: ~=v- '~ I,

" Disconnect the cornering light wire connector.

fairing Inner Covers

r~ ~. ~~~
Remove the following: SIDE """-I ~// ~ '"
" seat (see page 13-8). HOLDERS ~ SCREW
FAIRING LOWER
" fairing pockets (see pages 13-8, 9). COVER
" ignition switch cover (see page 13-9).
" top inner covers (see page 13-9).
" top compartment (see page 13-9).
" fairing lower cover (see above).
" A & SE: reverse lever, to allow removal of left fairing
inner cover (see page 18-30).
SE only: Disconnect the CB transceiver connector and
ground wire connector to allow removal of the left fairing
inner cover.
Remove three screws and one bolt. Remove the fairing
inner cover.

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 Air Ducts
Remove the fairing inner cover (see previous page).
Remove two screws and the lower air duct from the
fairing.
Remove the upper air duct from the fairing.

fairing
Remove the fairing inner covers (see previous page) and
air ducts (see above).
Remove the headlight (see page 19-12).
Remove the bolt on both sides and solenoid valve
bracket.
Disconnect the instrument wire harness connectors.

BOLT (EACH SIDE)

Remove the fairing inner bolt and nut (each side).

Remove four bolts.

Remove the fairing from the frame.

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 Fairin Components
Trunk/Saddlebags
NOTE
@ For detailed removal instructions, see the next two
pages.
@ See Section 15, Rear Wheel Removal, for instruc-
tions to remove the trunk and saddlebags as an
assembly.

51'
~ 0··.
\\ ~ SADDLEBAG
---.:::: (LEFT)

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 Trunk lower Cover
Remove four screws as shown.

Release the cover grooves from the trunk tabs.

Remove the trunk lower cover.

NOTE
" When installing the trunk lower cover, install the front
claw of the cover into the trunk first, then align the
trunk tabs with the lower cover grooves securely.

TAB AND GROOVE

Trunk SCREWS/WASHERS/RUBBER
SEATS
A & I models:
Remove the trunk lower cover (above).
Open the saddlebags and disconnect the opener cables
from the cable stoppers (see page 13-16).

SE model:
Remove the trunk lower cover (see above).
Remove the seat (see page 13-8).
Open the trunk lid.
Remove the three screws and the right side pocket from
the trunk.

SCREWS RIGHT SIDE POCKET

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 Fairin ody Components
Trunk/Saddlebags (cont'd)
Disconnect the antenna cord connector and ground wire
connector.
SE only:
Disconnect the high mount accessory light (2P-BLK)
connector, CB antenna wire connector, and rear speaker
(4P-BLK) connector.

BRAKE AND TAILLIGHT

CONNECTOR
Disconnect the brake and taillight wire connectors. (RIGHT AND LEFT)
Open the saddlebags and disconnect the opener cables
from the cable stoppers.
Disconnect the antenna connector and antenna ground
wire (see page 20-16).
Remove the trunk.

Trunk Opener
Open the trunk lid.
Remove the seven screws and the trunk catch assembly.

Remove the set plate and the lock cylinder. Remove the
three screws and the trunk/saddlebag opener unit from
the trunk.
Disconnect the saddlebag opener cables from the
opener unit.

13~16
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 Installation is essentially the reverse order of removal.
Position the tab of the trunk opener unit perfectly upright
when the trunk opener rod is installed.

CAUTION
.. If the tab of the trunk opener unit is not posi m

tioned properly, the trunk lid can not be opened.

Install the trunk catch assembly so that the trunk opener

rod is positioned under the tab.
After installing the catch assembly, check that the striker
latch operates properly by turning the key.

CAUTION
.. If the striker latch is not released completely, the
'[!"lmk lid cannot be opened.
-~------~ _...-
..

Saddlebag Lowell' Covell'

Remove the screw holders.
Remove two screws and the saddlebag lower cover from
the saddlebag.

Saddlebag
Remove the following:
" trunk lower cover (see page 13-15).
.. saddlebag lower cover (see above).
HOLDER
.. brake and taillight connector.
Disconnect the opener cables from the cable stopper
(see previous page).
Remove the bolts, washers and, rubber seats.
Remove the saddlebag.

NOTE
.. For right saddlebag removal, remove the outlet valve
(On-board Air Compressor System).

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 Fairin y Components
Front Fender
Release the boss from the fender rubber hole.

Release two tabs from the fender grooves.

Remove the front fender side cover (each side).

Remove three bolts, two collars, and clamp.

Remove the disc cover (each side).

NOTE
.. The upper bolt does not have a collar. See the
illustration.

Remove the bolt caps. CAP

Remove the socket bolts and collars.

Remove the front fender upper cover.

----v~
FRONT FENDER
UPPER COVER

Remove two socket bolts, two flange bolts, and the

collars.
Remove front fender A.

13-18
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 Disconnect the speedometer cable.
Remove two socket bolts and flange bolts.
Remove front fender B and the fork stay.

Rear Fender --~----~----~-~-------

Remove the following:

e trunk (see page 13-15).
e saddlebags (see page 13-17).
Remove the bolts and rear fender A.

A & SE models:
Remove the screws. Remove the reverse control unit
and auto cruise control unit from rear fender B by releas-
ing the unit tabs from the fender grooves.
Release the air distributor from rear fender B without
disconnecting the air hose (see page 12-33).
Remove the upper bolt and disconnect the ground wire
from the frame.
All models:
Remove two bolts and rear fender B.

13""19
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 Fairin ody Components
Rear Fender (cont'd)~----------------------~

Remove the following:

" left shock absorber (see page 12-20).
" relay and fuse box (by removing two bolts).
" A & SE: speed limiter relay.
Release the frame tab from the rear fender C groove.
Remove rear fender C.

RELAV
BOX

Adjustable Passenger Footrests (SE only)

Footrest
Remove the front side cover (see page 13-8).
Remove the two screws and the footrest bracket cover.
~ AEMOTl' CABLE STAY

Slide the link cover boot upward, and remove the two
socket bolts, footrest and step holder cover assembly.
Remove the screws and holder cover.
._--
~'NKARM I
FOOTREST
Remove the footrest remote cable from the stay and dis-
connect the cable from the link arm.
Install the removed parts in the reverse order of removal
and check the operation of the adjustable footrests.

HOLDER COVER

SCREWS

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 Footrest Remote lever
Remove the right side pocket (see page 13-15).
Loosen the cable lock nut and disconnect the remote
cable from the remote lever.

Remove the screw and the lever knob.

Open the pocket lid, and remove the two screws, nuts
and the lever assembly from the pocket.
Remove the two nuts, screws and the lever bracket from
the lever.

Remote Cable Adjustment

Pull the footrest remote lever to release the link arm from
the link and check that both left and right footrests move
I
up and down without binding.
Also check that both footrests are locked securely at the
desired position when you release the remote lever.
Measure footrest remote lever free play at the tip of the

~~ '~
lever.
FOOTREST REMOTE
FREE PLAY: 3.0-5.0 mm (0.12-0.20 in) /
LEVER
3.0-5.0mm
If adjustment is necessary, remove the seat (see page (0.12-0.20 in)
13-8).
Loosen the lock and adjust the free play by turning
adjuster A.
Tighten the lock nut after adjustment.
Check that the left and right steps are locked and
released equally.
If they are not equalized, loosen the lock nut and adjust
the synchronization by turning adjuster B.
Tighten the lock nut after adjustment.

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13.. 21
 Fairin Components
Footrests (A & 1 only)
Remove the cotter pin, washer and pin.
Remove the footrest.
Remove the socket bolt and bracket cover.
Remove the two bolts and holder cover.
Remove the two bolts and collars.
Remove the holder cover bracket.
Installation is the reverse order of removal.

PIN

BRACKET
COVER

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 Brakes
Service Information ".". 14~2
Troubleshooting .... s 14~4••

Brake Fluid Replacement!

Air Bleeding 14~5
Brake Pad
Replacement ..... s 14~7••

Brake Disc
Inspection 14~11S

Front Master
Cylinder s........... 14~12
Rear Master
Cylinder 14~14
Front Brake Caliper 14~19
Rear Brake Caliper . 14..21
s ••

Brake Pedal 14~23

Metal Brake Line 14~24

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 Brakes

_t.-
Service Information

€I A contaminated brake disc or pad reduces stopping power. Discard contaminated pads and clean a
contaminated disc with a high quality brake degreasing agent.
_
€I Inhaled asbestos fibers have been found to cause respiratory disease and cancer. Never use an air
hose or dry brush to clean brake assemblies. Use an OSHA-approved vacuum cleaner or an alternate
OSHA-approved method designed to minimize the haurd caused by airborne asbestos fibers.

@ This motorcycle has a unified brake system which provides simultaneous braking action of the left front and rear
disc brakes when the brake pedal is operated. The hand brake lever operates the right front disc brake which is
independent of the unified system.
€I Spilled brake fluid will severely damage instrument lenses, the windshield, and painted surfaces. It is also harmful
to some rubber parts. Be very careful whenever you remove the reservoir cap; make sure the front reservoir is
horizontal first.
€I Never allow contaminants (dirt, water, etc.) to get into an open reservoir.
€I The front brake can be removed without disconnecting the hydraulic system. Once the hydraulic system has been
opened, or if the brakes feel spongy, the system must be bled.
€I Always use fresh DOT 4 brake fluid from a sealed container when servicing the system. Do not mix different types
of fluid as they may not be compatible
€I Always check brake operation before riding the motorcycle.
System location

REAR RESERVOIR

FRONT/lEfT
BRAKE
CALIPER

CENTER
REAR REAR MASTER
METAL
METAL LINE CYLINDER
LINE

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 FRONT:

35N-m
(3.5 kg-m.
25 ft-Ib)

18 N-m
(1.8 kg-m. 13 ft-Ib)

Torque
Front master cylinder holder bolt 12 N-m (1.2 kg-m, 9 ft-Ib)
Caliper bleed valve 6 N-m (0.6 kg-m, 4 ft-Ib)
Front caliper bracket bolt 23 N-m (2.3 kg-m, 17 ft-Ib)
Anti-dive piston bolt 12 N-m (1.2 kg-m, 9 ft-Ib)
Front pad pin plug 2.5 N-m (0.25 kg-m, 1.8 ft-Ib)
Front pad pin 18 N-m (1.8 kg-m, 13 ft-Ib)
Right front caliper bracket bolt (I model) 31 N-m (3.1 kg-m, 22 ft-Ib)

~ 35 N-m (3.5 kg-m. 20 ft-Ib)

Torque
Brake hose bolt 35 N-m (3.5 kg-m, 20 ft-Ib)
Rear master cylinder mounting bolt 12 N-m (1.2 kg-m, 9 ft-Ib)
Rear caliper retainer bolt 11 N-m (1.1 kg-m, 8 ft-Ib)
Rear caper bolt 23 N-m (2.3 kg-m, 17 ft-Ib)
Rear caliper pin bolt 28 N-m (2.8 kg-m, 20 ft-Ib)
Metal brake line nut 17 N-m (1.7 kg-m, 12 ft-Ib)
Brake pedal bolt 25 N-m (2.5 kg-m, 18 ft-b)

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 Brakes
Troubleshooting
Brake leverlpedal soft or spongy Brakes grab
@ Air bubbles in hydraulic system " Pads contaminated
G Low fluid level G Disc or wheel misaligned
G Hydraulic system leaking
Brake chatter or squeal
Brake lever/pedal too hard " Pads contaminated
" Sticking piston(s) " Excessive disc runout
G Clogged hydraulic system G Caliper installed incorrectly
" Pads glazed or worn excessively " Disc or wheel misaligned

Brake drag Rear wheel locks up before front

" Hydraulic system sticking G Pressure control valve faulty
@ Sticking piston(s)
@ Clogged hydraulic system
G Incorrect rear brake pedal adjustment
" Caliper side slide pin sticking
@ Caliper installed incorrectly
" Disc or wheel misaligned

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 Brake Fluid Replacement!Air Bleeding
CAUTION
@ Do not allow foreign material to enter the system
when the diaphragm is removed.
@ Avoid spilling fluid on painted, plastic, or rubber
parts. Place a rag over these parts whenever the
system is serviced.

Brake lever System Fluid Replacement

(FrontlRight)
Remove the reservoir cover, set plate, diaphragm, and
float with the fluid reservoir parallel to the ground.
Draw all the brake fluid from the reservoir using a
commercial syringe.
Fill the reservoir with fresh DOT 4 brake fluid to the upper
level mark.
Connect a commercial brake bleeder, such as the
Mityvac No. 6860, to the bleed valve.
Open the bleed valve and pump the brake bleeder until
new brake fluid appears coming out of the bleed valve
and air bubbles do not appear in the plastic hose.
NOTE
~-~~_ ,,--,,-_._---------
...
s Add fluid when the fluid level in the reservoir is low.
s Use only DOT 4 brake fluid from a sealed container.
s If air is entering the bleeder from around the bleed
valve, seal the valve with Teflon tape.
s If you don't have a brake bleeder, replace the fluid
following the instructions for air bleeding on next
page.

CAUTION
o Do not mix different types of fluid. They are not
compatible. BRAKE BLEEDER

Tighten the bleed valve.

Torque: 6 N~m (0.6 kg~m, 4 ft-Ib)
Fill the reservoir with fresh DOT 4 brake fluid to the upper
level mark. Operate the brake lever. If it feels spongy,
bleed the air from the system (see next page).

Brake Pedal System Fluid Replacement

(Fmntlleft cmd Rear)
Place the motorcycle on its center stand.
Remove the right rear side cover (see page 13-8).
Remove the reservoir cap, set plate, and diaphragm.
Draw all the brake fluid from the reservoir using a
commercial syringe.
Fill the reservoir with fresh DOT 4 brake fluid to the upper
level mark.

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 Brakes
Brake Fluid ReplacementlAir Bleeding
NOTE , ~--~"~--~---
LEFT fRONT CALIPER
.. When replacing fluid from the brake pedal system,
replace fluid from the left front caliper line first, then
r'
I/ '! \,
the rear caliper.
.. See NOTE and CAUTION on previous page.

Connect a commercial brake bleeder, such as the

Mityvac NQ 6860, to the bleed valve.
Open the bleed valve and pump the brake bleeder until
new brake fluid appears coming out of the bleed valve
and air bubbles do not appear in the plastic hose.
lighten the bleed valve.
Torque: 6 N~m (0.6 kgmm, 4 iNb)
Fill the reservoir with fresh DOT 4 brake fluid to the upper
level mark.
Operate the brake pedal. If it feels spongy, bleed the air
from the system.

Air Blooding (Brake lever System)

If a brake bleeder is available, open the bleed valve and
pump the bleeder until air bubbles do not appear in the
plastic hose while adding fresh DOT 4 fluid to reservoir
upper level. (This is the same procedure used for fluid
replacement.)
If a bleeder is not available, perform the air bleeding as
follows:
Connect the plastic hose to the bleed valve.
1. Pump up the system pressure with the brake lever until
there are no air bubbles in the fluid flowing out of the
reservoir small holes. Squeeze the lever, open the
bleed valve 1/2 turn, and then close the bleed valve.
NOTE
.. Do not release the brake lever until the bleed valve
has been closed.
" Add fresh DOT 4 fluid when the fluid level in the reser-
voir is low; do not mix different types of fluid.

2. Release the brake lever slowly and wait several

seconds after it reaches the end of its travel.
Repeat steps 1 and 2 until air bubbles cease to appear in
the fluid coming out of the bleed valve.
lighten the bleed valve
Torque: 6 NMm (0.6 kgmm, 4 iNb)
Fill the fluid reservoir to the upper level mark with fresh
DOT 4 brake fluid from a sealed container.
Install the diaphragm, set plate and reservoir cover.

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 Air Bleeding (Brake Pedal System) ~- "
NOTE --h~~
" When bleeding the brake pedal system, bleed the left
front caliper first, then the rear caliper.
" Bleed the brake pedal system using the same proce-
dure used for brake lever system air bleeding on the
previous page.
I
LEfT FRONT CALIPER

t
BLEED VALVE

_l--'
Brake Pad Replacement
.
" Inhaled asbestos fibers have been fOlJnd to cause
respiratory disease and cancer. Never use .m air
~,

hose or dry brush to clean brake assemblies. Use

an OSHA~approved vacuum cleaner or an OSHA~
approved alternate method designed to minimize
the hazard caused by airborne asbestos fibers.

NOTE
,.,.,;;;;;..---

e Always replace the brake pads in pairs to assure even

disc pressure.
" Do not disturb the brake hose.

Front
Remove the disc covers (see page 13-18).
Remove the pad pin plugs and loosen the pad pins.
Remove the caliper bracket bolt and anti-dive piston bolt,
then remove the caliper.
I model, left side:
Remove the caliper bracket bolts and remove the caliper.
Push the pistons all the way in to provide clearance for new
brake pads.
NOTE
@ Check the brake fluid level in the reservoir. This opera-
tion causes the level to rise.

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 Brakes
Brake Pad Replacement (cOrit'd)
Pull the pad pins out of the caliper.
Remove the brake pads.

Position the pad spring in the caliper as shown.

NOTE
.. Make sure that tabs of the pad spring face the wheel
side.

Install the new pads in the caliper.

If you removed the caliper bracket, install it, applying sili-
cone grease to the caliper slide pins.

""'~ PINS
(SILICONEI

Install one pad pin. Then push the pads to compress the
pad spring while you install the other pin.

PINS

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 Install the brake caliper, making sure not to damage the
BRACKET BOLT
pads.
Apply grease to the needle bearing of the anti-drive
piston bolt and install it.
Tighten the caliper bracket bolt and anti-drive bolt.
Torque:
Caliper bracket bolt: 23 Nmm (2.3 kgmm, 11 fHb)
Anti drive piston bolt: 12 Nmm (1.2 kg-m, 9 ftmlb)
Right front caliper bracket bolt (I model):
31 N-m (3.1 kg-m, 22 ft-Ib)
Install the pad pins and pad pin plugs.
Torque:
Pad pin: 18 N-m (1.8 kgmm, 13 ft-Ib)
Pad pin plug: 2.5 N-m (0.25 kg-m, 1.8 ft-Ib)

NOTE
" Operate the brake lever to seat the caliper pistons
against the pads.
----------"""-,,,,-
Install the disc covers (see page 13-18).
Remove the left saddlebag (see page 13-17).
Loosen the pad pin retainer bolt.
Remove the caliper bolt and pin bolt.
Remove the pad pin retainer bolt and retainer.

Push the piston all the way in to provide clearance for the
new brake pads.

NOTE
" Check the brake fluid level in the reservoir. This
operation causes the level to rise.

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 Brakes
Brake Pad Replacement (cont'd)

Pull the pad pins out of the caliper.

Remove the brake pads.

Position the pad spring in the caliper as shown.

NOTE
@ Make sure that the tabs of the pad spring face the
wheel.

Install the new pads in the caliper.

Install one pad pin. Then push the pads to compress the
pad spring while you install the other pin.

Place the pad pin retainer over the pad pins. Push the
retainer down to secure the pins.
Install (but do not tighten) the pad pin retainer bolt.

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 Align the caliper pin bolt hole with caliper bracket boot.
Apply silicone grease to the caliper pin bolt. Insert the
caliper pin bolt into the hole.

lighten the caliper bolt, pin bolt, and retainer bolt.

Torque:
Caliper bolt: 23 N-m (2.3 kg~m, 11 ft-Ib)
Pin bolt: 28 N-m (2.8 kg-m, 20 ft-Ib)
Retainer bolt: 11 N-m (1.1 kg-m, 8 ft-Ib)

NOTE
~~._-_._~------~ ""'-"""-''''''--'--

Operate the brake pedal to seat the caliper pistons

o

~~~t th~"pads. ...._ . . __... ..'"~....._ _

Install the left saddlebag (see page 13-17). CALIPER BOLT

Brake Disc Inspection

Front:
Remove the disc cover (see page 13-18).
Rear:
Remove the left saddlebag (see page 13-17).
Measure the thickness of each brake disc.
Service limits:
Front: 5.0 mm (0.20 in)
Real': 6.0 mm (0.24 in)

Measure the brake disc for warpage with a dial indicator

as shown.
Service Limits (Front/Rear): 0.3 mm (0.01 in)

NOTE
--~..• _-----------
e When inspecting the front brake disc, set a suitable
plate onto the disc cover holder and install a flexible
dial indicator mount.

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 Brakes
Front Master Cylinder
Removal ALIGN

CAUTION
" Avoid spilling fluid on painted, plastic, 01" rubber
parts. Place a rag over these parts whenever the
system is serviced.
" When removing the brake hose, cover the end of
the hose to prevent contamination. Secure the
hose to prevent fluid from leaking out.

Draw all the brake fluid from the reservoir using a com-
A&SE:
mercial syringe (see page 14-5). CRUISE CANCEL BRAKE SWITCH
SWITCH WIRES WIRES

Remove the following:

BRAKE LEVER NUT/BOLT
" brake light switch wires.
" A & SE: cruise cancel switch wires.
" A & SE: holder cap.
" brake hose.
" master cylinder holder and master cylinder.
" brake lever.
" switch.
" piston boot.

Disassembly SNAP RING

Remove the snap ring from the master cylinder body.
Tool:
Snap ring pliers
07914-3230001

Remove the master cylinder piston, piston cups, and

spring.
Clean the inside of the master cylinder and master piston
with clean DOT 4 brake fluid.
NOTE
" Clean the disassembled parts with brake fluid.
" Use compressed air to check that air can pass
through the master cylinder port.

CUPS

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 inspection
Check the master cylinder for scores, scratches, or nicks.
Measure the master cylinder I.D.
Service Limit: 12.755 mm (0.5022 in)

Check the piston for scores, scratches, nicks, or other

damage.
Measure the master cylinder piston 0.0.
Service limit: 12.645 mm (0.4978 in)
Check the rubber piston cups for damage or deteriora-
tion. Install new parts if worn or damaged.

Assembly
NOTE
.. The master cylinder piston, cups, and spring must be
installed as a set.

Coat all the parts with clean DOT 4 brake fluid before
assembly.
Install the spring and piston.

NOTE PRIMARY CUP

" Install the spring with its small coil end toward the cup. SECONDARY CUP

CAUTiON
SNAP RING
" When installing the cups, do not allow the lips
to tum inside out.

Install the snap ring to the master cylinder body.

Tool:
Snap ring pliers
07914-3230001
CAUTION
.. Be certain the snap ring is firmly seated in the
groove.

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 Brakes
Front Master Cylinder (ccmt'd)
Install the piston boot.
PIVOT BOLT/NUT
Apply grease to the brake lever pivot.
Install the switch.
Install the brake lever by its pivot bolt and nut.

Installation
Place the brake master cylinder on the handlebar and install
the holder.
Align the edge of the master cylinder holder with the index
mark on the right handlebar cover. Tighten the upper bolt
first, then tighten the lower bolt.
Torque: 12 N-m (1.2 kg-m, 9 f1:-1b)
Install the brake hose on the master cylinder with the oil bolt
and two new sealing washers. ALIGN

NOTE
'" Position the hose as shown.

Tighten the oil bolt.

Torque: 35 N-m (3.5 kg-m, 25 ft-Ib) ~dJ::~t;;i'f... HOLDER
BOLTS
Connect the switch wires to the switch. :;:1
A & SE: Connect the cruise cancel switch wires to the If):
switch. L~
A&SE:
A & SE: Install the holder cap. HOLDER
Fill and bleed the brake lever hydraulic system (see page CAP
14-6).

Rear Master Cylinder

Removal
Remove the following:
'" Left exhaust pipe, mufflers and exhaust chamber (see
page 7-32).
'" Right heat protector (see page 7-32).
'" Battery and battery holder (see page 17-7).
Remove the cotter pin, washer, and clevis pin. Then discon-
nect the brake rod clevis from the brake arm.

A & SE models:
Disconnect the 2P-RED connector of the connector holder BOLT
MASTER CYLINDER BOLTS
behind the ignition control module.
Place a drip pan under the brake line. J
Disconnect the metal brake line for the rear caliper by
removing the bolt and sealing washers.
Disconnect the metal brake line from the front caliper by
loosening the nut.

CAUTION
'" Avoid spilling brake fluid on painted surfaces.

Remove the master cylinder by removing two bolts.

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 Disconnect the reservoir hose from the rear master
cylinder by removing the clamp.

Remove the reservoir bolt, open the reservoir cap, and

drain the brake fluid from the master cylinder.
Remove the reservoir hose from the reservoir by
removing the clamp.

Disassembly
CAUTION
_ _ m~mm _

@A pressure control valve is iru::orporated in the

rear brake master cylinder. When filling the
master cylinder, use extreme care to keep
foreign matter out, or the performance of the
control valve will be affected.
"The pressure control valve cannot be dis-
assembled. Do not attempt to disassemble it.

Remove the rear brake cruise cancel switch from the rear SCREWS
master cylinder by removing two screws.
Remove the reservoir hose joint by removing its screw.
Move the dust cover from the master cylinder and
remove the snap ring and pull the rod out of the master
cylinder.
Tool:
Snap ring pliers
07914-3230001

CAUTION~_ _
" The push rod may pop out when removing the
snap ring.
--=-----_.._ - - - - - - - -
Check that the push rod is not bent or damaged.

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 Brakes
Rear Master Cylinder (cont'd)
Remove the piston, piston cups, and spring from the
master cylinder.
Clean the inside of the master cylinder and piston with
clean DOT 4 brake fluid.

o Clean the disassembled parts with brake fluid. Use

compressed air to check that air can pass through the
master cylinder port.

Inspection
Check the master cylinder for scores, scratches or nicks.
Measure the master cylinder 1.0.
Service limit: 15.925 mm (0.6210 in)

Check the primary and secondary cups for damage or

deterioration. Replace, if worn or damaged.
Measure the master piston 0.0. as shown.
Service Limit: 15.815 mm (0.6226 in)

Assembly
Coat all the parts with clean DOT 4 brake fluid before
assembly.

CAUTION
---_._.. ~" .._".""---
" When installing the cups, do not allow the lips
to tum inside out.
. _ - - - - - - - - "...- - -
Install the spring, primary cup, and piston together, with
the small coil end of the spring towards the piston.

NOTE
" The master cylinder piston, cups, and spring must be
installed as a set.

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 Apply grease to the push rod.
Install the push rod into the master cylinder. Install the
snap ring.
Tool:
Snap ring pliers
07914-3230001
CAUTION
" Be certain the snap ring is seated firmly in the
groove.

Install the dust cover.

Adjust the installed length of the cruise cancel switch
plate and brake rod clevis as shown.
Standard Install length: 49 mm (1.9 in)

Brake rod clevis: 100 mm (3.9 in)

A & SE: Cancel switch plate: 49 mm (1.9 in)
--(?JL
o
i
1--- 0
.--------1
100 mm (3.9 in)

Check the a-ring for fatigue.

Install the a-ring and reservoir joint with its screw.
A & SE: Install the rear brake cruise cancel switch to the
rear master cylinder with two screws.
If the joint of the metal brake line for the front caliper was
removed, install the joint with its bolt and new washers,

\~
aligning the joint with the tab of the master cylinder.
lighten the bolt to specified torque.
Torque: 35 N-m (3.5 kg-m, 25 ft-Ib) SWITCH
BOLT
ALIGN

Installation
Connect the reservoir hose with its clamp.
Install the reservoir with its bolt.

14..17
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 Brakes
Rear Master Cylinder (ccmt'd)
Connect the reservoir hose to the master cylinder joint
with its clamp.

Connect the metal brake line for the front caliper at the
rear master cylinder with its nut.
Tighten the nut to the specified torque.
Torque: 17 Nam (1.7 kg-m, 12 tiall:»
NOTE ----_._.---_.
" Align the joint with the control valve tab.

Install the master cylinder with two bolts.

Torque: 12 N-m (1.2 kg-m, 9 ft-Ib)
Connect the metal brake line for the rear caliper at the
control valve with its bolt and new sealing washers.
Tighten the bolt to the specified torque.
Torque: 35 Nam (3.5 kgam, 25 ft-II:»
Connect the brake rod clevis to the brake arm with the
UP COTTER PIN
clevis pin.
Install the washer and new cotter pin. t

•
Bend the cotter pin as shown.
A & SE: Connect the 2P-RED connector to the connector
holder behind the ignition control unit.
Install the following:
" Battery and battery holder (see page 17-8).
" Exhaust system components (see page 7-28). CLEVIS PIN
Fill and bleed the brake pedal hydraulic system (see page
14-7).

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 Front Brake Caliper
Removal
Remove the disc cover (see page 13-18).
Place a clean container under the caliper.
Disconnect the brake hose from the caliper by removing
one bolt and two sealing washers.
CAUTION
G Avoid spilling brake fluid on painted surfaces.

Remove the caliper, brake pads, caliper bracket, and pad

spring (see page 14-7).

Disassembly
Position the caliper with the pistons facing down and
apply short bursts of air pressure to the fluid inlet.

BIIIL _
e Do not use high pressure air or bring the nozzle
too close to the inlet.
e Place a shop towel over the pistons to prevent
them from flying oui.

Examine the pistons and cylinders for scoring, scratches,

or other damage. Replace, if necessary.

Push the piston and dust seals in, lift them out, and
discard them. PISTON SEALS

CAUTION
G Be careful not to damage the piston sliding
surfaces when removing the seals.

Clean the caliper cylinders, seal grooves and caliper

pistons with clean DOT 4 brake fluid.

Inspection
Measure the piston diameter with a micrometer.
Service limits:
left: 25.310 mm (0.9965 in)
Right: 30.140 mm (1.1866 in)
Measure the caliper cylinder bore.
Service limits:
left: 25.460 mm (1.0024 in)
Right: 30.290 mm (1.1925 in)

14~19

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 Brakes
Front Brake Caliper (cont'd)
Assembly
NOTE
.. If the piston boots are hardened or deteriorated,
install new ones.
.. Install new piston and dust seals every time they are
removed. Coat the seals with DOT 4 brake fluid
before assembly.

Install new seals.

Install the pistons with the insulated ends toward the
pads.

Install the boots.

SPRING
Apply silicone grease to the caliper pin and caliper
bracket pin.
Install the caliper bracket, pad spring, pads, and pad pins
(see page 14-8).

CAUTION
.. Be careful not to damage the pads.

SILICONE"", ~

installation
Install the caliper bracket on the fork leg.
Tighten the caliper bracket bolt and anti-dive piston bolt.
Torque:
Caliper bracket bolt: 23 N-m (2.3 kg-m, 11 ft-Ib)
Anti-dive piston bolt: 12 N-m (1.2 kg-m, 9 ft-Ib)
Right front caliper bracket bolt (1 model):
31 N-m (3.1 kg-m, 22 ft-Ib)
Connect the brake hose to the caliper with new sealing
washers and the hose bolt, aligning the joint with the
caliper tab. Tighten the hose bolt.
Torque: 35 N-m (3.5 kg-m, 25 ft-Ib)
NOTE
----~ __ _--------_.•_.--
.. ...
.. Align the hose joint with caliper boss.

Fill and bleed the hydraulic system (see page 14-5).

Install the disc cover (see page 13-18).

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 Rear Brake Caliper
Removal
Remove the left saddlebag (see page 13-17).
Place a clean container under the caliper and disconnect
the brake hose from the caliper.
CAUTION
~ Avoid spilling brake fluid on painted surfaces.

Disconnect the brake hose from the caliper by removing

its bolt and two sealing washers.
Remove the caliper and pads (see page 14-9).

Disassembly
Remove the pad spring, boots, and pivot collar from the
rear brake caliper.
If the boots are hardened or deteriorated, replace them.

_
Position the caliper with the pistons facing down and
apply short bursts of air pressure to the fluid inlet.

_-------
.........
~ Do not use high pressure air or bring the nozzle
too close to the inlet.
~ Place a shop towel over the pistons to prevent
them from flying out.

Push the dust and piston seals in, lift them out, and
discard them.
CAUTION
~ Be careful not to damage the piston sliding
surfaces when ."emoving the seals.

Clean the caliper cylinders, seal grooves, and caliper

pistons with clean DOT 4 brake fluid.

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 Brakes
Rear Brake Caliper (cont'd)
Inspection
Check the caliper cylinder for scratches, scoring, or other
damage.
Measure the caliper cylinder bore.
Service limit: 32.090 mm (1.2634 in)
Examine the pistons and cylinders for scoring, scratches,
or other damage. Replace if necessary.
Measure the piston 0.0.
Service limit: 31.940 mm (1.2515 in)
Assembly
NOTE
" If the piston boots are hardened or deteriorated,
install new ones.
" Install new piston and dust seals every time they are
removed. Coat the seals with brake fluid before
assembly.

Install new seals.

Install the pistons with the opened ends toward the pads.
Apply silicone grease to the pivot collar and the insides of
the boots and install them into the caliper.
CAUTiON
" Make sure that boots are seated in the caliper
grooves.

Install the pad spring, pads, and pad pins (see page
14-10).
CAUTION
" Be careful not to damage the brake pads.

Installation
Install the caliper on the caliper bracket.
Apply silicone grease to the caliper pin bolt.
Install and tighten the caliper pin bolt and caliper bolt.
Torque:
Caliper bolt: 23 Nwm (2.3 kgwm, 12 ftwlb)
Pin bolt: 28 N-m (2.8 kgwm, 20 ftwlb)
Install the pad pin retainer and tighten the bolt.
Torque: 11 Nwm (1.1 kgwm, 8 ftwlb)
Install the brake hose with the bolt and new sealing
washers. Tighten the hose bolt.
Torque: 35 N-m (3.5 kgwm, 25 ft-Ib)
NOTE
" Align the hose joint with the caliper boss.

Fill and bleed the brake pedal system (see page 14-5).
Install the left saddlebag (see page 13-17).

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 Brake Pedal
Removal
Remove the brake pedal bolt and brake pedal. Remove
the right exhaust pipe protector (see page 7-29).

~ PEDAL

Remove the cotter pin, washer, and clevis pin. COTTER PIN

Disconnect the brake rod clevis from the brake arm.

Remove the rear brake light switch spring and brake WASHER
pedal return spring.
Remove the brake arm.

Installation
Apply grease to the brake pedal shaft and install it to the
pivot hole.

PIVOT HOLE

Install the brake pedal return spring and rear brake light
switch spring to the brake arm. ~~(
~ SPRING \\j ,
Connect the brake rod clevis to the brake arm with the ~~;
clevis pin.
BRAKE ARM'
Install the washer and a new cotter pin to the clevis pin. L ~
NOTE
-------------- I
e Bend the cotter pin as shown.

~
RETURN SPRING

CLEVIS PIN

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 Brakes
Brake Pedal (cont'd)

Install the brake pedal, aligning the punch mark as

shown.
Tighten the brake pedal bolt.
Torque: 25 Nam (2.5 kgam, HI ft-Ib)
Check the brake pedal height (see page 3-27).

PUNCH
MARK

Metal Brake line

Remov~1

Drain the brake fluid from the hydraulic system (see page METAL LINE NUT
14-5).
Remove the following:
@ battery and battery holder (see page 17-7).
o left rear side cover (see page 13-8).
o left saddlebag (see page 13-17).
Remove the metal line clamp from the swing arm.
Disconnect the metal line by loosening the nut, using a
commercial open ring spanner as shown.
Remove the metal pipe clamp from the swing arm.
Disconnect the metal line by loosening the nut.
Remove the rear metal line.

14=24
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 A & SE: Remove the power control reverse resistor
assembly (see page 18-42). CENTER METAL LINE
NUT
Remove the metal line bracket bolt and bracket from the
frame.
Loosen the center metal line nut, using an open ring
spanner.

CENTER METAL LINE

Remove the hose bolt from the rear master cylinder.

Remove the center metal line sideways to the right.
Loosen the front metal line nut, using an open ring
spanner from the rear master cylinder.

FRONT METAL
LINE NUT

Remove the right fairing inner cover (see page 13-12).

Remove the front metal line bracket. Loosen the front
metal line nut, using an open ring spanner.
Remove the front metal line upwards.

BRACKET

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 Brakes
Metal Brake line (cont'd)
installation
Install the metal lines in the reverse order of removal.
Torque:
Metal brake line nut: 17 N-m (1.7 kg-m, 12 ft-Ib)
Brake hose bolt: 35 N-m (3.5 kg-m, 25 ft-Ib)

NOTE
o Be careful not to twist the metal lines when tightening
the metal line nuts.
@ Secure the front metal line with the clamp as shown.
@ Make sure the brake lines do not contact any moving
parts.
" Check for leaks after installation .
_--_._---
.

Fill and bleed the hydraulic system (see page 14~6).

REAR
METAL LINE

17N~m
(1.7 kg-m, 17 N-m
12 ft~lb)

17 N-m
(1.7 kg~m, 12 ft-Ib)

30 N-m
(3.0 kg~m,
22 ft-Ib)

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 WheelslTires
Service Information 15..2
Troubleshooting 15..4
Front Wheel . . . . . . . . . .. 15..5
Rear Wheel 15..10
Wheel Balancing 15..20

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 Wheels/Tires
Service Information

<> Any attempt to mount passenger car tires on a motorcycle rim may cause the tire bead to separate from
the rim with enough explosive force to cause serious injury or death.
<> There are two ways to remove the trunk/saddlebag rear section of the motorcycle. If a helper is available, the entire
trunk/saddlebag section may be removed as an assembly. If a helper is not available, remove the individual compo-
nents as instructed.
@ A jack or other support is required to support the motorcycle. The motorcycle may be damaged if it is not supported on
the indicated jack point (see page 15-5).
@ Wheel bearings must not be re-used after they have been removed. Always use new bearings
e If the motorcycle has been involved in an accident, inspect the frame very carefully at the steering head and at the
engine mounts. These are the areas most likely to suffer damage
@ This motorcycle is equipped with tubeless tires, valves, and wheel rims. Use only tires marked ''TUBELESS'' and tube-
less valves on rims marked "TUBELESS TIRE APPLICABLE." Never mount tires designed for use on automobiles on a
motorcycle rim.

110 N-m
(11.0kg-m.
80 ft-Ibl

70 N-m
(7.0 kg-m.
51 ft-Ibl

15-2
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 100 N-m (10.0 kg-m.
72 ft-Ibl

12 N-m (1.2 kg-m.

9 ft-Ibl

Torque Values:
Brake disc bolt 40 N-m (4.0 kg-m, 29 ft-Ib)
Front axle pinch bolt 22 N-m (2.2 kg-m, 16 ft-Ib)
Front axle bolt 90 N-m (9.0 kg-m, 65 ft-Ib)
Shock absorber lower mounting bolt (left side) "70 N-m (7.0 kg-m, 51 ft-Ib)
Rear axle pinch bolt 32 N-m (3.2 kg-m, 23 ft-Ib)
Rear axle nut 110 N-m (11.0 kg-m, 80 ft-Ib)
Handlebar upper holder bolt 25 N-m (2.5 kg-m, 18 ft-Ib) - Apply grease
Front brake master cylinder holder 12 N-m (1.2 kg-m, 9 ft-Ib)
Clutch master cylinder holder 12 N-m (1.2 kg-m, 9 ft-Ib)
Steering adjustment nut 19 N-m (1.9 kg-m, 14ft-lb) -see page 12-44
Steering stem nut 100 N-m (10.0 kg-m, "72 ft-Ib)
Caliper bracket bolt 23 N-m (2.3 kg-m, 17 ft-Ib)
Anti-dive piston bolt 12 N-m (1.2 kg-m, 9 ft-Ib)
Right front caliper bracket bolt (I model) 31 N-m (3.1 kg-m, 22 ft-Ib)

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 WheelsITires
Troubleshooting
Hard steering
.. Steering adjustment nut too tight
.. Faulty steering stem bearings
.. Damaged steering stem bearings
.. Insufficient tire pressure

Steers to one side or does not track straight

.. Bent forks
.. Bent frame
.. Forks installed incorrectly
.. Axle installed incorrectly
.. Bent swing arm
.. Wheel installed incorrectly

Front wheel wobble or vibration

.. Loose axle (front or rear)
.. Loose wheel bearings
.. Loose steering stem nut or bearings
.. Loose swing arm pivot bolt lock nut
.. Unbalanced tire and wheel
.. Bent wheel
.. Excessive lateral wheel runout
.. Bent forks
.. Bent swing arm
o Bent or cracked frame
@ Loose engine mounts

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 Front Wheel
Removal
Put the motorcycle on its center stand.
Raise the front wheel off the ground by placing a jack or
other support on the fixed point under the engine, as
shown.
CAUTION
" Do not use the oil filter as a jack point.

Remove the right and left disc covers (see page 13-18).
JACK POINT

Disconnect the speedometer cable from the

speedometer gear box.

Remove the caliper bracket bolt and anti-dive piston bolt.

Remove either the right or left caliper assembly.

CAUTION
" Support the removed caliper with a piece of wire
so that it does not hang from the brake hose. Do
not twist the brake hose.

NOTE
" Do not depress the brake lever or pedal when the
caliper is removed, or it will be difficult to refit the disc
between the brake pads.
ANTI-DIVE PISTON BOLT

Remove the axle bolt.

Loosen the axle pinch bolts.
Remove the following:
" front axle
" front wheel

PINCH BOLTS

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 WheelsITires
Front Wheel (cof'lt'd)

Wheel Bearing Inspection

Turn the inner race of each bearing with your finger. The
bearing should turn smoothly and quietly.
Also check that the bearing outer race fits tightly in the
wheel hub.
Replace the bearings if necessary (see page 15-7).
NOTE
" Replace the wheel bearings as a set.

Wheel Rim Runout Inspection

Place the wheel in a truing stand. Spin the wheel slowly
and measure the runout with a dial indicator gauge.
Service limits:
Radial Runout: 2.0 mm (0.08 in)
Axial RUl1out: 2.0 mm (0.08 in)
Replace the wheel if the runout exceeds the service
limits.

Axle Inspection
Set the axle in V blocks and measure the runout.
The actual runout is 1/2 of the total indicator reading.
Service limit: 0.2 mm (0.01 in)

Disassembly
Remove the following from the left side of wheel:
" speedometer gear box.
" dust seal.
e retainer.

.. brake disc.

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 Remove the following from the right side of wheel:
o axle collar.
" dust seal.
o brake disc.

Bearing Replacement
Remove the bearings and the distance collar from the
hub.
Tools:
Bearing remover
Commercially available
NOTE
o Do not reuse the removed bearings. Install new
bearings.
.-"-----~

-----_.
Assembly

" Do not get grease on the brake disc

power will be eliminated.
-------------
01' braking

DISC SOU

_~ DUST SEAL

RIGHT DISC

15-7
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 WheelsITires
Front Wheel (cont'd)

Pack the new bearing with grease.

Drive in the right bearing first with the sealed end facing
out.
Drive in the left bearing.
Tools:
Driver
07749-0010000
Attachment, 42 x 47 mm
07746-0010300
Pilot, 20 mm
07746-0040500
Install the brake disc on the wheel. lighten the brake disc
bolts (each side).
Torque: 40 N-m (4.0 kg-m, 29 ft-Ib)
Install the dust seal into the hub.
Pack the dust seal lip cavity with grease
CAUTION
$ Wipe off all grease on the outside surface of the
dust seal.

Install the axle collar into the dust seal, positioning it as

shown.
Fill the dust seal lip cavity with grease.
Install the speedometer gear retainer in the left wheel
hub.
Coat the speedometer gear with grease
Install the speedometer gear box onto the dust seal,
aligning the tabs of the retainer with the gear box notches.
CAUTION
.. Wipe off all grease on the outside surface of the
dust seal.

Position the front wheel between the fork legs.

Install the front axle from the left fork slider through the
wheel to the right fork slider.
Position the speedometer gear box so that the lug on the
gear box is against the rear of the stopper lug on the left
fork leg.
If the disc cover holders were removed, install them with
the front axle pinch bolts.

NOTE
$ The brake disc cover holders have identification
marks: "L" for the left side and "R" for the right side.

15-8
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 Install and tighten the front axle bolt. AXLE Boa BOLTS

Torque: 90 Nmm (9.0 kgmm, 65 fNb)

Install the disc cover holder with the "R" mark, if removed.
Tighten the axle pinch bolts (each side).
Torque: 22 Nmm (2.2 kgmm, 16 fNb)

MARK HOLDER

Install a caliper and the caliper bracket and anti-dive

piston bolts.
Tighten the bolts.
Torque:
Caliper bracket bolt: 23 Nmm (2.3 kgmm, 17 ft-Ib)
Anti~dive piston bolt: 12 N-m (1.2 kg-m, 9 ft-Ib)
Right front caliper bracket bolt (1 model):
31 N-m (3.1 kg-m, 22 ft-Ib)

Measure the clearance between each surface of the left

brake disc and the left brake caliper bracket with a
0.70 mm (0.028 in) feeler gauge.
If the feeler gauge cannot be inserted easily, loosen the
front axle pinch bolts and move the left fork slider out until
the gauge can be inserted. Then retighten the left axle
pinch bolts.

CAUTION
" After installing the wheel, apply the brake sev-
eral times and recheck the caliper clearances
between each surface of the left brake disc and
the left brake caliper. Failure to provide clear-
ance will damage the brake disc and affect
braking efficiency.

Connect the speedometer cable to the speedometer gear

box and secure it with the screw.
Clamp the speedometer cable as shown.
Install the disc covers (see page 13--18).

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 WheelslTires
Rear Wheel
Removal
Put the motorcycle on its center stand.
If necessary, remove the seat (see page 13-8) and raise
the rear wheel off the ground by hanging the motorcycle
on the fixed points as shown.

Tn,mklSaddlebags
- Removal with a helper
Remove the seat (see page 13-8).
Open the left and right saddlebags.
Inside both, remove the cap found at the front of the
saddlebag to gain access to the lower rear frame bolt.
Loosen the lower rear frame bolt (each side).

Loosen the muffler joint bolts (each side).

Remove the muffler mounting bolt, washer, and nut (each
side).
Lower the mufflers to remove the axle nut and shaft.
CAUTION
" Do not damage the muffler gaskets.

~~f
MUFFLER JOINT BOLTS

A & SE: Disconnect the air hose from the right shock
absorber.

15~10

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 Disconnect the antenna wire.
Disconnect the ground wire near the antenna wire.
A & SE: Open the three black plastic cases covering the
three (red, black, and white) connectors.
Disconnect the connectors. (I model: connector.)
SE: Disconnect the CB antenna wire connector and rear
speaker (4P-BLK) connector.

Remove the upper rear frame bolts.

Pull back on the rear section to slide the lower rear frame
tubes away from the loosened bolts.
Lift the rear section off the motorcycle.

Trunk/Saddlebags
- Removal without a helper
Remove the following:
e trunk lower cover (see page 13-15).
., left and right saddlebags (see page 13-17).
., rear fender A (see page 13-19).
" rear frame end pipe.
Remove the muffler mounting bolt and loosen the joint
bolts (each side) (see page 7-33).
Lower the muffler (each side) so that the axle shaft can be
removed.
CAUTION
., Do not damage the muffler gaskets.

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 WheelsITires
Rear Wheel (cont'd) ----------------------~
Remove the rear axle nut.

Remove the left shock absorber lower mount bolt.

Remove the rear axle pinch bolt and pUll the rear axle out
of the wheel. COLlAR

Remove the following:

.. caliper assembly with bracket.
.. washer.
.. collar.

CAUTION
.. Support the caliper with a wire so that it does
not hang from the brake hose. Do not twist the
brake hose.

NOTE
.. Do not depress the brake pedal when the caliper is
removed, or it will be difficult to refit the disc between
the brake pads.

Remove the rear wheel from the final gear.

NOT:::::..E~ ~ ~

.. If necessary, push the driven flange on the final gear

side against the wheel to allow clearance for removal.

Inspect the wheel as described in front wheel section.

15~12

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 Inspection
" Axle inspection (see page 15-6).
" Wheel bearing inspection (see page 15-6).
" Wheel rim runout inspection (see page 15-6).

Disassembly
Remove the brake disc and dust seal from the wheel hub.
Remove the driven flange from the wheel hub.

CAUTION .-
" Be careful not to damage the wheel hub.

NOTE
" The pins and nuts cannot be removed.

Remove the damper holder bolts.

Tum the damper holder clockwise and align the arrow
marks on the damper holder and wheel hub.
Remove the damper holder from the wheel hub.

Replace the rubber dampers if they are damaged or RUBBER DAMPER

deteriorated.

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 WheelsITires
Rear Wheel (cont'd) - - - - -

Remove the bearings and distance collar from the rear

wheel hub.
Tools:
Bearing remover, commercially available
NOTE
G Do not reuse the removed bearings. Install new
bearings.

Assembly
~ DISTANCE
DUST SEAL COLLAR

DISC 20 N-m
(2.0 kg-m. 14 ft-Ibl

/~
""G O-RINGS

MOLY 60
PASTE

DRIVEN
FLANGE

Pack the new bearing cavities with grease. Drive in the

left bearing (mono) first.
Tools:
Driver
07749-0010000
Attachment, 42 x 47 mm
07746-0010300
Pilot, 20 mm
07746-0040500
Install the distance collar and then drive in the right
bearing (dual).

15",14
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 Pack the dust seal lip cavity with grease.
Install the dust seal in the wheel hub.
Install the brake disc and tighten the bolts.
Torque: 40 N-m, (4.0 kg-m, 29 ft-Ib)

Install the rubber dampers into the wheel hub. "OUTSIDE" MARK

NOTE
········_ _•_ _=mu<""''''''"=,,,=_=''',,

" Install each rubber damper with the "OUTSIDE" mark

facing outward.

Install the damper holder into the wheel hub. DAMPER HOLDER
Align the arrow marks on the damper holder and wheel
hub, then turn the damper holder counterclockwise.
Install and tighten the damper holder bolts.
Torque: 20 N-m (2.0 kg-m, 14 ft Ib)

RUBBER DAMPER

Install the driven flange to the wheel hub.

15=15

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 WheelsITires
Rear Wheel (cont'd)

Installation
Apply Pro-Honda Moly 60 paste or equivalent to the
driven flange splines.

Install the distance collar with its smaller outer-diameter

side facing inside.

Install the rear wheel onto the final gear case, aligning
their splines.
Install the rear axle collar in the dust seal, positioning it as
shown.

Position the caliper and bracket as an assembly over the

disc.

NOTE
m Be careful not to damage the brake pads with the
brake disc when installing the brake caliper.

Install the washer between the swing arm and the rear
brake caliper bracket.

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 Insert the rear axle through the swing arm, washer, cal-
iper bracket, collar, and rear wheel.
Install the pinch bolt.
Install and tighten the left shock absorber lower mount
bolt.
Torque: 70 N-m (700 kg-m, 51 ft-Ib)

Install and tighten the rear axle nut.

Torque: 110 N-m (11.0 kg-m, 80 ft-Ib)

/
REAR AXLE NUT

Tighten the rear axle pinch bolt.

Torque: 32 N-m (3.2 kg-m, 23 ft-Ib)

PINCH BOLT

15..17
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 WheelsITires
Rear~hecl~o~~ ~~~~~~~~~~~~~~~~~~~~~-

Trunk/Saddlebag REAR SECTION

- Installation with a helper
Install the rear section, sliding the lower rear frame tubes
into the loosened bolts and aligning the upper fender
tabs.
ALIGN

LOOSENED BOLT
(EACH SIDE)

Install the upper rear frame bolts.

Push the rear frame forward. Tighten the lower rear frame
bolts (each side).
Install the cap securely (each side).
Tighten the upper rear frame bolts.

Install the muffler mounting bolt, special washer, and nut

(each side).
Tighten the nut securely (each side).
Tighten the muffler joint bolts securely (each side).

JOINT BOLTS

15-18
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 SE model: I
Connect the CB antenna wire connector and rear /\
/' ./
speaker (4P-BLK) connector.
A & SE models:
Connect the three connectors (red, black, and white)
securely and close the plastic cases.
Connect the antenna wire and ground wire.
I model:
Connect the white connector.

A & SE models:
Apply a thin coat of suspension fluid to new a-rings.
Connect the air hose to the shock absorber.
Tighten the air hose bolt to the specified torque.
Torque: 6 N-m (0.6 kgmm 4 ft-Ib)

NOTE
-_.~,,_._--------------
.. Install the hose vertically as shown.

All models:
Install the seat (see page 13-8).
Close the saddlebags.

TrunkfS«:ftddlebag
- Installation without a helper
Install the following:
.. rear frame and pipe.
.. rear fender A (see page 13-19).
.. left and right muffler (see page 7-33).
.. left and right saddlebags (see page 13-17).
.. trunk lower cover (see page 13-15).

15..19
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 WheelsITires
Wheel Balancing

.. Wheel balance directly affects the stability,

handling, and overall safety of the motorcycle.
Always check balance when the tire has been
removed from the rim.

NOTE
.. For optimum balance, the tire balance mark (a paint
dot on the sidewall) must be located next to the valve
stem. Remount the tire, if necessary.
VALVE STEM

Mount the wheel, tire, and brake disc assembly in an

inspection stand. (If a stand is not available, mount the
wheel on its axle and clamp the axle in a vise with a shop
towel or, preferably, a vise with soft jaws.
Spin the wheel, allow it to stop, and mark the lowest
(heaviest) part of the wheel with chalk.
Do this two or three times to verify the heaviest area. If the
wheel is balanced, it will not stop consistently in the same
position.

To balance the wheel, install wheel weights on the highest

side of the rim, the side opposite the chalk marks. Add
just enough weight so the wheel will no longer stop in the
same position when it's spun.
Do not exceed the following weight limits:
Front: 60 grams
Rear: 70 grams

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 Ignition
Service Information 16..2
Troubleshooting 16..4
Engine Control
Module m •••• 16..7
Ignition Coil w • w •• 16..8
Ignition Pulse
Generator 16..10
Gear Position
Switch 16..13
Side Stand Switch . . . . .. 16..14
Engine Coolant
Temperature
Sensor . . . . . . . . . . . . .. 16..15
Engine Stop Switch 16..16
Ignition Timing 16..17

16..1
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 Ignition
Service Information---"~--~~----------=

G All electrical components can be inspected without removing them from the motorcycle.

" Be sure the battery is fully charged before troubleshooting the ignition system.
" Current is sent through the ignition coil primary circuit by the engine control module. When the ignition pulse
generator rotor tooth passes the coil pickup, the primary circuit is broken, causing the primary coil flux field to
collapse. Secondary coil voltage rapidly rises, firing the spark plugs.
G The GL1500 ignition control module electronically varies ignition times according to engine speed and intake
manifold vacuum. The gear position switCh, engine coolant temperature sensor and intake air temperature sensor
signal the engine control module to compensate the ignition timing according to the gear position, coolant temper-
ature and atmospheric temperature.
G When inspecting the ignition system, check the system components and lines step-by-step according to the

troubleshooting chart on page 16-4.

G For spark plug gap inspection and adjustment procedure, see page 3-19.
G For intake air temperature sensor inspection, see page 4-52.

System location

FUEL PUMP IGNITION

SHUT-OFF SWITCH
(BANK ANGLE)
SENSOR

RELAYS 3&6

FUSES
8 & 11

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 II
Circuit Diagram:
A & SE Models

I6II'IlON
To:Pb (~!lke Manifold) ACC TERMINAL
COl.S

~- i : - - - RELAY BOX--.,

~6
I FUSE BOX -

r-~~;-ii-~-;-;i-~s;;;·.i
I

n
@ @

a!i O[J(2)
00
3
ENGINE CONTROL MODULE
____ ____ I I I II I
1SA i( 1

:I R'SA I: If i
SA l :: : I( 2 ,)

DO
L. __ II
...J __ ...J L. __ .JI
i ( 3 ,):
I~ ~ d 1% .z !i
i ( • ,) I

.....
11111'!~I~!.!.$i1~
~11~~~~~ii~i~
~~!~;;lii5~fil;l!!ltt~
~ ~-
To AutoCrulSt
Contro'
~r:
I -5 ;~
111~UlJU><llI~
~~ ii S i
I
~
I
~ i ;
i ( 5 ,) I
I( 6 ,I
lOG]
~~!~~~~
" To Fuel Pump I (. 7 ,I
i @:,,~8)
...,.... L...-, ! f'/"9~,,·a
I( 10 ,)

~
•••• !:"'"~ ~' :11.,&

FUSE BOX RELAY BOX

FUSE No CIRCUIT RELAY No CIRCUIT

~
BLK WH'

-==-- mfl
YEL'IlEO--- - 8 TAIL ILLUMI l~A 3 TAIL (MAIN)
VELBl.V 9 STARTiREVERSE SA 6 IGN. CRUISE
VEL WHT 11 IGN CRUISE ISA

INTAKE AIR TEMPERATURE ..rrrc;r--GR~

~Bl.k KJ- -ill- I ~ '"""
(IlP.BL;rn'.. . . - ,..... ,.,.---e"':"~JP'WHT)
~LHillll---l
,~ G
(JP.GIlNJ

0'"
"'"" "._. ".. .;
VELIlLK VEL'BLK YEL!BLK BLV

".."'" ".. "'"

LT-GIlII
__ """"'
LT-GIlII1lED
,,"""' . . . . .,S'

INDICATOR
,-
I
: BLK'1IIlII~
12V3}W GRII. ....._ . .. ~ . . .wH1
. _
"...., _
.
""'_,
- ...
(P1IIII

- -
IlLKlllAlil BLK WHT BLK WHT BLK

CO"..~ ~ 0...... ,._

... ji""1_ "I' I
NEUTRAL " eN.' ""
IIOCATOR'I
...-.. ~-=..J
" "'"
12V34W·. ---.l r--
,..-
" "'" ,."..
fOCATOR
L_-J
I ~GRllCAN
'''", :=========*==========F1ttl~i'I-=====S~ ..-
NIIGL£

., fl
: = ~ L ~ ~5
#* ~, ~~ #J~
% ! !
~ >< ... ~ ~
~I
>< !
tlP·REO~ ~...... i~
J lli II!. To: Reverse il

I l "••}

•~ •~ •~ ~T . ~
~_,~ ~'I"'" ffi I
~! ~z ~ >..
i01g~~ _ ,5 ......
(2PaU) - [4P.WHT, To: Starter

i , I ~ n ~
5 i'" iEj
• ~ .l. . 5 System

=~~. ~,- ~ ~ ~ ~Jm~ ~ ~ ~ ::.-~ ~__ ••

T""'- _

. ;. ~

~ ~
/@

~.!~
~ 'i'IACe FAN P TLI TU
,
LOCI< j
ENGINE /
"" """
SWITCH
"-..-/
IGNITION
L ......
'Or! F.-.
"*'
OFF i COOLANT,/ PULSE lWor ~
S ACe ......
i
0
TEMPERATUREL:
SENSOR A GIlOUN) POINT
....._ n..-bc F." Motor 5oolIl:h
GENERATOR IlLK
VEL
IlLACK
YELLOW
IlAIiI
CAN
IlIlOWII
OlIANIiE
0- ro
~
.On RaUIor __
Fa
--
ON ~)-tO-K)- BLU IILl£ LT«.V LIGHT BLI£
B .On Enple. No.- CooIInl T--",e 5oolIl:h
~ : () "
I
I"
'-I . 1O, GRII
AEO
GRWi
RED
LT-GIlII LlGHTGIlEEII

ENGINE STOP SWITCH IGNT10N SWITCH wHT WMIT( GRY GRAY

16-3A

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 Circuit Diagram:
•
I Model

r-/lEUY BOX---, r--F'USE BOX----'l

~
' ~' r;;;-;l r-;;~-:
- - 1F1'~A
I
lI I f iI~A : lI
L __ ..J __ ..J [J[j
DO
!i: ..... .. ....
il ;~ ~i Ii ~ i ; i
• I •• 1 lI!l •

88
!!:! ~ !! 11 ~~~ii,
GJow
~=
!:! ~ ill rll"WI(f:== Wlll.LlllJ.U
F'USE BOX /lEUY BOX
F'U5E No CIRCUIT RELAY No CIRCUIT
8 TAIL ILLUMI I~A (MAIN)
Z TAIL

YEl.'WHT
YEl.'BLII _ i II IGN I~A ;IGN

INTAKE AIR TEMPERATURE ~GR~

~"K II II
l~" lI4P.wHT" [IIP-Wl(f'

G
TACHCIETER YELBLII ·BLII YEL BLII " YEL'BLII

=m
GRIo GRIo GRIo GIlN
r - _ -.. 1lIlN1IHT IlIlN IfIolT IlIlN IfHT

SlOE STANO I . : LT-GRN'REO LT-GRN REO LT-GRNiREO

r.-.)
I
ICO'
12V1." YEL BLK YEL B L K l s
Gr<N--fJ1=
GAN~: :;=tlF~:;:::::;-)1I I
(22P.YEl.; GIlN
NE\I\'M. BLK IfHT
IClCATOR, LT-GRNREO [IIP.(iIlY)
1M."
MJlDIlNE (r--i-BLK'IIlN

~WHT
YEL·BLK WHT IIED-WHT

IClCATOR 1 \.J....JOGRN'llAN IIED'WHT • To: .-..-. GIlN

i 12V1.7lt wHT_ IIED-WHT
L--_-l
IN«
UGL.E
SENSOR

~ i 0 >c

ij~1 ~ J:-~
~I~~I- (TO:=

~'_~~~ I
III 11/
I ''--- I
:J
~
Z
S1MTEIl R£UY
i S1lITCH A

..
W;;tij~!
ENGINE
COOLANT
SIlE S1Wl
S1lITCH
L POINT
GIl(UI)
.OrtF'_ lIROWN
TEMPERATURE BLK 1lLACl<
SENSOR
'-- o-toe. OlIN OIWIGE
GIlOlJIC)P(JM YEL YELLOW

-
14 .Ort .........NMr~F'... lilolIlrSMlct BLU BLUE LT«.U LJGHT IIU£

I It tOrt E"..,.. NNr Coolon! T _ SMIc/l GIlN

lIED
GRUN
lIED
LT-GRN LJGHT GREEN
Pflo<
wHT WHITE GAY GRAV
EIGNE STOP S1lITCH

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 Ignition
Troubleshooting

- ---------------------
.. When periorming a spark test, keep open flames or sparks away from the work area.

NOTE
.. Before beginning, be sure that the battery is fully charged.
.. Each park of spark plugs (1-2, 3-4, 5-6) has its own ignition circuit.

Engine does not smrt or is hard to start.

Spark at
all plugs
r-----------------1=--=~=::..~Faulty fuel system (see Section 4).
SPARK TEST: Remove spark plugs and check ~ospark at
.
for spark at each cylinder. e plug
......._ _, . - """""'jF ....J -......;........;."""'*'" .. Faulty plug.

No spark at one or .. Faulty spark plug wire.

No spark at
all plugs two pairs of plugs
(1-2), (3-4) or (5-6)

loose or poor
CONNECTOR: Check the engine control contact
module connectors for loose or poor contact. I------~.. Loose or poor contact of the engine
control unit connectors.
Good Conmct

ENGINE CONTROL MODULE: Perform the All normal ROTOR: Check that the ignition pulse
engine control module system inspection (see generator rotor bolt is tight, and that
page 16-7). the rotor is not damaged (see page
16-11).

Abnormal ! Yes
.. Faulty engine
! No
.. Faulty rotor
control module .. Loose bolt
Same
COMPONENT: Check the related components in measurement
the abnormal line. After checking, compare your i------~ . Faulty related component:
measurement to the engine control module - ignition coil (see page 16-8)
connector measurement. - side stand switch (see page 16-14)
- engine stop switch (see page 16-16)
- ignition pulse generator (see page
Different 16-10)
Measurement - gear position switch (see page 16-13)
L..... .... Loose or poor contact of the related
component connectors.
.. Open or short circuit in the wire
harness between the related compo-
nent and the engine control module.

16-4
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 -,-
IGNITION COIL: Measure the ignition IGNITION COIL: Measure the ignition
Abnormal
secondary coil resistance between the plug secondary coil resistance without plug
wires of the faulty pair (see page 16-8). wires (see page 16-8).
.......,,"'_ _'"
~
w
Standard Resistance ~ Standard ~ Abnormal

e Faulty spark plug .. Faulty ignition

wire. coil.
CONNECTOR: Check the ignition primary coil Loose or poor
terminal connectors for loose or poor contact. contact
$ Loose or poor contact of terminal
connectors.
Good Contact

Abnormal
IGNITION COIL: Measure the ignition primary IGNITION COIL: Measure the ignition
resistance
coil resistance of the faulty pair at the engine primary coil resistance at the 4P-WHT
control module connector (see page 16-8). connector (see page 16-8).
"=-,,,

Standard Resistance ! Standard Abnormal

" Loose or poor contact of the

ignition coil 4P connector.
.. Open circuit in wire harness.

IGNITION COIL: Measure the ignition

primary coil resistance at the 4P-WHT
connector (see page 16-8).

~ Standard ! Abnormal
.. Open circuit in .. Faulty ignition
ENGINE CONTROL MODULE: Switch the sub wire harness. coil.
"No Spark"
ignition coil primary terminals connection condition shifts
between the faulty pair and good pair. Try to other pair
the spark test again. ..-----~" Faulty engine control module.

"No Spark" condition remains

with faulty pair
--------------------1.. 11I><> Faulty ignition coil.

Engine starts, but runs rough at low engine speed (below 2,000 rpm)
VACUUM TUBE: Check the engine control Bad
connection
module vacuum tube for a loose, poor or -,,~--~ e Loose, poor or improper connection of
improper connection. the vacuum tube.
Damaged vacuum tube.
~
@

Good Connection

IGNITION TIMING: Check the ignition timing Normal

(see page 16-17). .. Faulty fuel system (see Section 4).

! Abnormal

16-5
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 Ignition
Troubleshooting (cont'd)

GEAR POSITION SWITCH: Check the gear No Continuity

position switch continuity at the engine control .........- - - - - . . . Faulty gear position switch.
module connector (see page 16-7).

Normal

ENGINE COOLANT TEMPERATURE

SENSOR: Perform the engine coolant
ENGINE COOLANT TEMPERATURE
temperature sensor line inspection at the I SENSOR: Inspect the engine coolant
engine control module connector (see page I I
16-7). temperature sensor (see page 16-15).

Normal
Normal
.. Open or short circuit .. Faulty engine
in wire harness. coolant tempera-
.. Loose or poor contact ture sensor.
of connector.
'I-m. *"' .. Faulty engine control module.
Poor performance (driveability) and poor fuel economy
.. Faulty ignition timing (see page 16-17).
.. Fuel system malfunction (see Section 4).

Engine starts, but side stand switch does not fundion

SIDE STAND INDICATOR: Check the side Normlfll

stand indicator for function. .. Faulty side stand switch.
.. Open circuit in GRNIWHT or GRN wire.
Abnormlfll

SIDE STAND SWITCH: Check the side stand Normal

switch for continuity (see page 16-14). .. Loose or poor contact of related
connectors.
.. Open or short circuit in wire harness.
AI:mormlfll
.. Burnt indicator bulb.

.. Faulty side stand switch.

Rich mixture or hesitation

.. Faulty engine control module or loose or poor contact of
related connector terminals (see page 16-7).

16=6

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 Engine Control Module
System Inspection
ENGINE CONTROL MODULE
Remove the right fairing inner cover (see page 13-12).
Disconnect the engine control module connector and
check it for loose contact or corroded terminals.
Measure the following between the connectors terminals
on the wire harness side:

NOTE
---- ,------"'~-,,"'-
.. For intake air temperature sensor inspection, see
page 4-52).

"

ITEM TERMINALS SPECIFICATION

~-~~----,----+-
Ignition coil (primary, 5-6) YEURED and BlK/WHT 2.6-3.2 Ohms (20°C/68°F)
(primary, 3-4) YEUBLU and BLK/WHT
(primary, 1-2) YEUWHT and BLK/WHT
Ground line GRN and body ground CONTINUITY
""

Battery voltage input BLK/WHT (+) and ground (-) wit h the ignition Battery voltage should register
switch ON and engine stop switch RUN.
1------.--------1---------- ~"- " " "
Ignition pulse (PC 1) WHTIYEL and GRN/BLK 400-500 Ohms (20°C/60°F)
Generator coil (PC 2) WHT/BLU and GRN/BLK
-'''--~-~,,- ._u"", ~-
Side stand switch GRN/WHT and ground CONTINUITY with the side stand up
NO CONTINUITY with the side stand
down
~_._-,,-----,----F__---- . . - ----- _ ,_ _ _,m,,"«
,~

Gear position (Neutral) LT GRN/RED and ground CONTINUITY

switch (Second gear) BLKlYEL and ground
(Third gear) WHT/RED and ground
(Fourth gear) RED/WHT and ground
(Overdrive) GRN/ORN and ground
"""'''''='' . ,-
Engine coolant temperature PNK/WHT and GRN/BLK 2.0-3.0 k ohms (20°C/68°F)
sensor 200-400 ohms (80°C/176°F)
...

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 Ignition
Ignition Coil
Inspection
Remove the fairing lower cover (see page 13-12).
Disconnect the spark plug caps from the spark plugs.
Measure the secondary resistance through the spark
plug caps for each ignition pair (1-2, 3-4 and 5-6).
Standard: 20.~:G26.8 K ohms (20°C/68°F)
If the secondary resistance is not within specification,
remove the ignition coils and check resistance again
without the spark plug wires (see below).

Remove the right fairing inner cover (see page 13-11).

Disconnect the 4P-WHT connector from the wire
harness.
Measure the primary coil resistance between the follow-
ing terminals:
@ 1-2 coil: YELJWHT and BLK/WHT
3-4 coil: YEUBLU and BLK/WHT

~~TCONNE=R
@

@ 5-6 coil: YEURED and BLK/WHT

Standard: 2.6 3.2 ohms (20°C/68°F)
M

If the primary resistance is not within specification,

remove the ignition coils (see below) and check resis·· SECONDARY COIL

tance between the primary terminals (see below).

Standards:
Primary coii: 2.6-3.2 ohms (20°C/68°F)
secondary coil: 11.7-14.3 K ohms (20°C/68°F)

PRIMARY
COIL

Removal
Remove the fairing lower cover (see page 13-12).
Remove the spark plug caps from the spark plugs.
Release the spark plug wires from the wire clamps of the
cooling fans.

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 Remove the carburetor (see page 4-19).

NOTE
@ Do not disconnect the cables and water hoses from
the carburetor.

Remove the ignition coil stay mounting bolts. Move the

coil assembly down and remove the radiator reserve tank
(see page 5-12).
Remove the ignition coil assembly.

Disconnect the ignition coil wires from the primary termi- 5·6 COil
nals and remove the spark plug wire clamp.
Remove the ignition coil mounting bolts.
Disassemble the ignition coils.
"
COIL 6

~
=m~
'-=-
I
II
IJ
COIL 4

/,
-?
' -
. /.

/~~L~~~j
'r - - - L
1 o.c /.~

1- }

COIL 3 I, \ \ /
COIL 1 \~~.,
1-2 COIL

Installation
Install the ignition coils on the ignition coil stay as shown.
Route the spark plug wires properly onto the wire clamp
as shown.
Connect the ignition coil wires on the primary terminals
properly.

~~:-_~_",_~~::_",~~_~_~.':.~_a-._: C-_k1-i~ ~ _;"-:~I: ~ ~1.._-_:-_.+_'~ _~ :_'-.~_'e_;_"·~;_.u_·-:_r_~_i_:~_~ '_~_.

. •_.. •. __

Install the ignition coil assembly onto the frame, but do

not install the mounting bolts.
Install the radiator reserve tank (see page 5-12).
Install and tighten the ignition coil stay mounting bolts.
Install the carburetor (see page 4-36).

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 Ignition
Ignition Coil (cont'd)

Clamp the spark plug wires properly with the wire clamps WIRE CLAMP
of the cooling fans as shown. (EACH SIDE}

Connect the spark plug caps to the spark plugs.

Install the fairing lower covers (see page 13-12).

Ignition Pulse Generator

Inspection
4P-WHT
Remove the right fairing lower cover (see page 13-12). CONNECTOR

Disconnect the 4P-WHT connector of the connector

holder on the right cooling fan.

Measure the following resistances:

o YEL and WHTIYEL wire terminals (pulse generator 1).
@ BLU and WHT/BLU wire terminals (pulse generator 2).
Standard: 400-500 ohms (20°C/68°F)

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 Removal
Remove the following:
@ fairing front cover (see page 13-11).
o under cover (see page 13-11).
., timing belt covers (see page 7-4) .
., right timing belt (see page 7-4).
e ignition pulse generator mounting bolts.
• wire clamp.
• ignition pulse generators.

Installation
Set the ignition pulse generator wire grommet into the
crankcase groove properly.
Install the ignition pulse generators with the wire clamp.
Tighten the mounting bolts securely.
Connect the 4P-WHT connector.
Install the following:
., right timing belt (see page 7-22).
• timing belt covers.
o under cover, fairing front cover (see page 13-11) and
right fairing lower cover (see page 13-12).

Ignition Pulse Rotor Removal/Installation

NOTE
..__. __.. _~_._ .... -----
o It is not necessary to remove the ignition pulse gener-
ator and tensioner rollers.

Remove the timing belts (see page 7-4).

Remove the timing belt drive pulley bolt.
Disassemble the rotors.
Install guide plate B with its projection facing out.
Install one timing belt drive pulley, aligning the pulley hole
with the guide projection.
NOTE
--~"""'----'
., Align the pulley key with the crankshaft keyway.

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 Ignition
Ignition Pulse Generator (col1t'd) '~~-------' ~._-~-=---~-

Install the ignition pulse rotor with its "OUTSIDE" mark

facing out, aligning the rotor key with the crankshaft
keyway.

Install guide plate A, aligning its projection with the pulley

hole.

Install the washer and timing belt drive pulley bolt.

lighten the bolt to the specified torque.
Torque: 75 N~m (7.5 kg-m, 54 ft~lb)

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 Gear Position Switch
Inspection
Remove the right fairing lower cover (see page 13-12).
Disconnect the 6P-BLK connector from the connector
holder on the right cooling fan.

6P-BlK
CONNECTOR

Check for continuity between each terminal as shown 6P-BlK CONNECTOR

below and ground. There should be continuity at each
gear position. ~ LT-GRN/RED

I:
~ GRN/ORN - - - ,
.~~ -" REO/WHT
Gear Positi on Terminais Specification WHTlRED
..",,"""""'" , ""~~'"

Neutral gear LT GRN/RED and Continui ty

ground BLK/YEL 2
"",,, ~ , .~ -.~ ..-
Second gea r BLK/YEL and ground Continui ty
------
-T---
""

Third gear WHT/RED and ground Continui ty

".,," ..
Fourth gear REDIWHT and ground Continui ty
--r-- GEAR
OD gear GRN/ORN and ground Continui ty
~- .-- POSITiON
SWiTCH

Removal
Remove the front engine cover (see page 8-6).
Remove the bolt and gear position switch.

Installation
Install the gear position switch with the wire grommet set
into the cover groove.
Install and tighten the bolt with the wire clamp.
Install the front engine cover (see page 8-32).

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 Ignition
Side Stand Switch
Inspection
Remove the left fairing inner cover (see page 13-12).
Disconnect the 3P-GRN connector from the connector
holder behind the cruise control valve unit.

3P-GRN
CONNECTOR

Check for continuity between each terminal as shown

below:
,u=

Item Terminals_ _ _'

~"'U
Specification
,,~

Side stand GRNIWHT and

_. GRN No Continuity
"",...
lowered.
YEUBLK and GRN Continuity
""'"

Side stand GRNIWHT and GRN Continuity

raised. --
~-_.~~ .... YEUBLK and GRN No Continuity

Removal U-GIlOOVE
Remove the left front side cover (see page 13-8).
Remove the side stand switch mounting bolt.
Release the wire clamps and remove the side stand
switch from the side stand.

Installation
Install the side stand switch, aligning its U-groove with the
pin.
Align the lug of the switch rotor with the hole in the side
stand and install the mounting bolt. LUG
HOLE
Torque: 10 N-m (1.0 kg-m, 7 ti-Ib)
Install the removed parts in the reverse order of removal.

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 Engine Coolant Temperature Sensor
Inspection/Removal
Remove the following:
@ right fairing lower cover (see page 13-12).
e right cooling fan (see page 5-11).
@ right radiator (see page 5-9).

NOTE
@ It is not necessary to disconnect the radiator hoses.
2P-BW
CONNECTOR
Disconnect the waterproof 2P-BLU connector from the
connector holder on the right cooling fan.

Disconnect the 2P-GRN connector from the engine cool- ENGINE COOLANT 2P-GRN
ant temperature sensor. TEMPERATURE SENSOR CONNECTOR

Check for continuity between the connectors of the sub

wire harness:
There should be continuity between same color wires. SUB WIRE
HARNESS
There should be no continuity between different color
wires.
Drain the coolant (see page 5-8).
Remove the engine coolant temperature sensor from the
right intake manifold. Suspend the sensor in cold water.
Heat the water slowly, using an electric heating element.

mill . "
Keep flammable materials away from the electric
e
heating element
.. Weal' insulated gloves and adequate eye pro-
tection.

Measure resistance between the terminals.

Standard: 2.0·<Ul K ohms at 20°C (68°f)
200-400 ohms at 80°C (176°f)
NOTE
.. If the engine coolant temperature sensor or ther-
mometer touches the pan, false readings will result.
e Stir the water well.

If resistance is outside the above ranges, replace the

engine coolant temperature sensor.

16~15

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 Ignition
Engine Coolant Temperature Sensor (cont'd)
SEALING ENGINE COOLANT
WASHER TEMPERATURE
Install the engine coolant temperature sensor with a new SENSOR
sealing washer onto the right intake manifold.
Tighten the sensor to the specified torque.
Torque: 28 N~m (2.8 kg~m, 20 fHb)

CAUTION
" Keep water off the sensor terminals.

Connect the 2P-GRN connector to the engine coolant

temperature sensor. 2P-GRN CONNECTOR
Connect the waterproof 2P-BLU connector of the con-
nector holder on the right cooling fan.
Install the following:
" right cooling fan (see pages 5-11).
" right radiator (see page 5-10).
" right fairing lower cover (see page 13-12).
Fill the cooling system with coolant (see page 5-8).

Engine Stop Switch

Remove the right fairing lower cover (see page 13-12).
Disconnect the 9p-RED connector from the connector
holder on the right cooling fan.

9p..RED
CONNECTOR

Test for continuity between the color coded wires:

ENGINE
STOP
Color BlKllT GRN BlKIWHT SWITCH
OFF
RUN
OFF
'-"-'~""---~I--------
r--~~~~O
..
_.~_._ ~-~~--+----- ------
H~::::::J)y---

---
J

16~16

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 Ignition Timing
Remove the following:
" fairing lower covers (see page 13-12).
" fairing front cove, (see page 13-11).
" timing cover and O-ring.
Start the engine and warm it to operating temperature
(above 50°C/122°F).

I\JOTE
~_ ..
~-~ ~ ~-'.'~'" _ .• ..
~_ , __
._ _ - - - -
® Make sure the temperature gauge registers above
the center position.

Idle Timing Inspection

Stop the engine and connect a stroboscopic timing light
to the No. 1 or NO.2 cylinder spark plug wire.
Start the engine with the transmission in neutral and let
the engine idle at 900 ± 50 rpm by adjusting the throttle
stop screw.

The timing is correct if the guide plate F 1.2 mark aligns

with the timing cover index mark at idle.
Connect the timing light to the No. 3 or NO.4 cylinder
spark plug wire and check the ignition timing as pre-
viously described by observing the F 3.4 mark.
Check the NO.5 or NO.6 cylinder in the same way, using
the F 5.6 mark.
Reset the idle speed to 800 ± 80 rpm.
Stop the engine and check the vacuum advance. INDEX
MARK

Vacuum Advance Inspection

Remove the top compartment (see page 13-9) and right
fairing inner cover (see page 13-12).
Disconnect the vacuum tube where it connects to the
engine control module. Be careful not to disconnect the
vacuum tube from connections below.
Plug the end of the vacuum line as shown.

16=17
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 Ignition
Ignition Timing
Connect a vacuum pump to the engine control module.
Tool:
Vacuum pump
ST-AH-260-MC7
Place the motorcycle on the center stand, start the
engine and warm it to operating temperature (above
50°C/122°F).
We the clutch lever to the handlebar and let the engine
idle (800 ± 80 rpm) with the transmission in 3rd, 4th, or
00.
Apply vacuum to the engine control module and check
the "F" mark movement with a timing light. The advance
should start at 60-160 mmHg (2.4-6.3 inHg) at atmo- ADVANCE START RETARD START
spheric pressure, 760 mmHg (29.9 inHg). 60-160mmHg 310-360 mmHg
(2.4-6.3 inHg) (12.2-14.2 inHg)
The advance should stop and the retard should start at lit lItmoshperic pressure. at atmospheric pressure.
760mmHg (29.9 inHg) 760 mmHg (29.9 inHg)
310-360 mmHg (12.2-14.2 inHg) at atmospheric pres-

F~
sure, 760 mmHg (29.9 inHg).

NOTE
..
-----~ ~~._----------

o Keep the engine speed on idle by adjusting the

throttle stop screw while testing the vacuum advance.
I
Stop the engine. Disconnect the vacuum pump and
reattach the vacuum line to the engine control module.
Check the gear position switch timing shift (below).

Gear Position Switch Timing Shift

Inspection
NOTE
o Connect a vacuum tube to the ignition control
module.

Start the engine and warm it to operating temperature

(above 50°C/122° F).
Let the engine run at 1,200 ± 100 rpm by adjusting the GEAR
POSITION
throttle stop screw with the transmission in neutral. SWITCH
Shift the transmission to 3rd or neutral from 1st or 2nd.
The engine speed should increase by approximately 100
rpm.
Reset the idle speed to 800 ± 80 rpm.
Stop the engine and check the intake air temperature
sensor timing shift (see page 4-52).

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 Engine Cooiant Temperature Sensor Timing ENGINE COOLANT SUB WIRE
Shift Inspection 17
NOTE
r//
TEMPERATURE
SENSOR
\ j
HARNESS

~
~

;5:::;
'~----' \
@ Use a known good engine coolant temperature
sensor for this test to avoid draining and refilling
the coolant and removing and replacing the engine
coolant temperature sensor in the GL.
"",-''''~-"",,---- J
"---J
Remove the intake air temperature sensor (see page
4-52).
Disconnect the intake air temperature sensor sub wire
i I

harness from the intake air temperature sensor and

temporarily connect the sub wire harness to the test ENGINE
engine coolant temperature sensor. COOLANT
TEMPERATURE
SENSOR
INTAKE AIR
TEMPERATURE
SENSOR
SUB WIRE
HARNESS

Cool the test engine coolant temperature sensor in the

ice water for approximately ten minutes.
Start the engine and warm it to operating temperature ENGINE COOLANT
(above 50°C/122°F).
SENSOR
Connect the cooled engine coolant temperature sensor
to the waterproof 2P-BLU connector of the connector
holder on top of the right cooling fan.
The engine speed should increase by approximately 200
rpm.

NOTE
@ If ignition timing is not correct, check all individual
ignition system components except the ignition con-
trol module. If the individual components are good,
replace the ignition control module.

After inspecting the ignition timing, install the removed

parts in the reverse order of removal.

@ Install the timing cover with its "UP" mark facing up.

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 Charging
SeNice Information 17 2
Troubleshooting 17 5
Battery 17 7
Charging System
Output . . . . . . . . . . . . .. 17...9
Alternator and Regulatorl
Rectifier 17 10
Alternator Drivel
Driven Gears 17 19

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 Charging
Service Information

@ Do not smoke, and keep flames away from a charging battery. The gas produced by a battery will
explode if a flame or spark is brought near.
@ The battery electrolyte contains sulfuric acid. Protect youII'" eyes, skin, and clothing. In case of contact,
flush thoroughly with water, and call a doctor if electrolyte gets in your eyes.
.. When disconnecting the WHT wire terminal from the alternator, first disconnect the battery negative
cable from the battery.

CAUTION
.. For battery charging, do not exceed the charging current and time specified on the battery (and shown
below). Use of excessive current or charging time may damage the battery.

.. The battery fluid level should be checked regularly. Fill with distilled water when necessary.
.. Slow charge the battery whenever possible. Quick charging should be an emergency procedure only.
@ Remove the battery from the vehicle for charging.
.. When inspecting the charging system, check the system components and lines step-by-step according to the
troubleshooting on page 17-5.
o The regUlator/rectifier is located in the alternator.
o For starter clutch removal/installation, see Section 18.
.. Maintenance services and repairs of the alternator gears described in this section must be performed with the
engine removed from the frame.
.. Refer to Service Letter #48 (June 1987) for additional battery servicing information. Also refer to the Honda
Battery Tester/Christie Battery Charger Operation Manual (Reorder #S0536).

Torque
Front cover attaching screw 2 N-m (0.2 kg-m, 1.4 ft-Ib)
Coupler B mounting nut 58 N-m (5.8 kg-m, 42 ft-Ib)
Coupler A mounting nut 58 N-m (5.8 kg-m, 42 ft-Ib)

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 System location

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 ."",A
o 00
~
rn ~r ~ :T
~ g:
;::; S.m
ACC TERMINAL
ff"===- c o~ea
"'"
~r~llr;lnr! ......
@@
i"
RELAYaox FUSE aox
r-----' ,
'I'IULJLJI I
Ill, I
~
iil
...... ::1
=Lea
!1~fJ
I FUS[ Ii I 3
o
ij-- 3
2 )

')'I!III~ r-: [
IlIA I
I I I! (

rF- '
3 ) I

3
!

LF1J
II' ·",1 LJ LJ I
11(. •
~ ~
~ :~
II : r 5 ] /;l 1 ,a)"
I~~~iUI. '~I
[1111,111 1:

II, , ,j/ i L-J i ~

I !
r-- --l
I;
no
~~bJD
i ,----1
Ii a
I
I
I
I :5
~
I
',_rao@"",,_[,
_"% OED~ FUSE BOX RELAY BOX
)
-I:i

II
-\lMT tfHT- FUSE No llllCVIT RELAY No CIRCUIT

I ,
It! I
I
l-,,1: (lfP.GRYJ
I
-.J
I
II ~ CRUISE IIA 6 IGII CIMSE

!I
y(llI',"'-'1

L~
III.------:'=ffi::==F: ~ II
("'.... Ol<1il
I E

I '
I ' , I
m.- j
Il£O/IIHT1...'l.[IlEO/llHT. REO/III<1I
I ("....01
~
Ii I 'HT~'KT
ALTERNATOR lW'l FUSE B Ill<
I I
"'"""0 ' BANK ANGLE SENSOR
i I Il£tl 'ELIREO i

IF,
1 r=;J I [OP.Il£O] i
RED1j RED , " ~ To 5"""/""",, 5",,,,
BlK

,-,'
BL
I
I
, IlJ
~
LOCK!
••
I
ACC FAN ' P Tli TU

GROUND POM
STARTER RELAY SWITCH A

OFF! .Oo~.
ACC Na« Dlpsliek

ON ..t"'l. -0. 0- f-{) &,.1<: BUCK ...

000< 0Il0W.
_
p YEl YELLOW
aLU mUJE lHLU L~TElLUE
I;NlTION SWITCH
eOn R&dicltor, .On &.I;"'. """ ....[1<
LHiRH LIGHT GAEEH
NI.. ThcMIlIO$ta!ic No£( CooI&nt REO IlEll
FVI MllIClf Swrtch T~ature
S"tch
I'll'll WHITE """
GRY ""'"
GRAY

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 Troubleshooting
Abnormal engine noise (gear noise)
" Worn or damaged alternator drive gear or driven gear.

Battery discharging/overcharging

BATTERY: Inspect the battery using guide-

lines beginning on page 17-7. Substitute a
fully charged battery if necessary.

CONNECTOR: Check the battery termi- loose

nals, alternator WHT terminal, and alterna- Conmct
tor BLK/LT GRN connector for loose or " Loose or poor contact connector or terminals.
poor contact.
",..... ."w,;

Good Contact Current leaks

Above
WIRING/CONNECTOR: Perform the 5mmA
" Short circuit in wire harness.
leakage test (see page 17-9).
" Loose or poor contact of connectors.
.. Faulty battery.
Current leakage
UnderS mmA Normal
(13.5-15.5 V/900 rpm) (13.5-15.5 V/ 1,850 rpm)
Start the engine and check the regulated (0-2 AI 900 rpm) (1.5 A mini 1,850 rpm)
voltage and amperage (see page 17-9).
.. Faulty battery
Voltage Battery
Same as Overcharging
Battery iii> " Faulty regulator/rectifier (regulator side).
Voltage

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 Charging
Troubleshooting (cont'd)

o
"'''''=

WIRING: Disconn ect the alternator BLKlLT

! WIRING/CONNECTOR: Remove the sub wire har~
ness (BLKlLT GRN). Measure the voltage between
the BLKlLT GRN wire (+) (wire harness side) and
ground (-). Battery voltage should register with the
GRN wire 2P co nnector. Measure voltage ignition switch ON.
between the BLKIGRN wire (+) (wire harness
side) and ground (-). Battery voltage should
register with the ig nition switch ON (see page
17~10).

Yes No

" Open circuit in

BLKlLT GRN sub " Open circuit in
wire harness BLKlLT GRN main
wire harness
" Loose or poor
contact in the 2P
connector

"
ALTERNATOR: Remove the alternator and
rotate the rotor shaft with you finger. The rotor No
should rotate smo othly (see page 17~11).
~,

Yes

Disassemble the alternator (see page

17~ 11) and inspect the following. Replace
if necessary.
Then Check
" rotor bearings (see page 17-13)
" stator coil (see page 17-14)
" rotor coil (see page 17~ 12)
.
Disassemble the a ternator and inspect
the following: Abnormal
e condenser (see page 17~12) ---_. > " Short circuit in the condenser
.. brush length (see page 17~13) " Worn brush
e stator coil (see p age 17-14) " Faulty stator coil
e rotor coil (see p age 17~12) " Faulty rotor coil
"""=,,
»........... ..
" Faulty regulator/rectifier

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 Battery

----'''-,-~-----
e The battery gives off explosive gases; keep
sparks, flames and cigarettes away. Provide
adequate ventilation when charging.
e The battery contains sulfuric acid (electrolyte).
Contact with skin 01" eyes may cause severe
bums. Wear protective clothing and a face
shield.
If electrolyte gets on your skin, flush with
water.
If electrolyte gets in your eyes, flush with
water for at least 15 minutes and call a
physician.
e Electrolyte is poisonous
If swallowed, drink large quantities of water
01" milk and follow with milk of magnesia or
vegetable oil and call a physician.

Removal
Remove the left rear side cover (see page 13-8).
Disconnect the negative cable first, then the positive
cable. On installation, reconnect the negative cable last.
Remove the nut, bolt, and battery holder.
Disconnect the breather tube.
Remove the battery from the case.
Check for a cracked or broken case or plates. Replace
the battery if it is damaged, or if sulfation or sediment has
accumulated on the bottom.
Check the electrolyte level in the cells. If it is low, add
distilled water to bring the level to the upper mark.
Open the main fuse B cover and remove the main fuse B
holder by removing the screw.
Remove the nut, bolts, and battery case.
NOTE
e In order to obtain accurate test readings when check-
ing the charging system, the battery must be fully
charged and in good condition. Perform the following
inspections and tests before attempting to trouble-
shoot charging system problems.

Specific Gravity HYDROM-

ETER
Test each cell with a hydrometer.
Specific Gravity: 1.210 1.290 (20 e/68° F)
m
0

~-'''- """'-~~:~-:-rrg-g:-:--'

17-7
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 Charging
Battery (cont'd) - - - - - - - - - - - - - - - - " - - - - - - - - -

NOTE
@ The battery must be recharged if the specific gravity is ELECTROLYTE TEMP. VS SPECIFIC GRAVITY
below 1.230. 1.;31 1.304
1.297
@ The specific gravity varies with the temperature as
1.290
shown in the accompanying table.
1.276
~
@ The battery gives off explosive gases; keep sparks, 1.270
flames and cigarettes away. Provide adequate 1.263
1.25
ventilation when charging. 1.256
@ The battery contains sulfuric acid (electrolyte).
_ _ _._L_._.__..__- _ _._
Contact with skin or eyes may cause severe burns.
Wear protective clothing and a face shield.
o (32) 10 (50) 20 (68) 30 (86) 40 (104)
- If electrolyte gets on your skin, flush with water. ELECTROLYTE TEMPERATURE °C (OF) - -
- If electrolyte gets in your eyes, flush with water
for at least 15 minutes and call a physician.
49 STATES
• Electrolyte is poisonous
- If swallowed, drink large quantities of water or
milk and follow with milk of magnesia or vegeta-
BATTERY
ble oil and call a physician. c _
ELBOW
Charge the battery until specific gravity is 1.270-1.290 at
20°C (68°F).
Battery Charging
Refer to Service Letter #48 (June 1987) for additional battery
servicing information. Also refer to the Honda Battery Tester/
Christie Battery Charger Operation Manual (Reorder #S0536).
CLAMPER
Charging current: 2.0 amperes max.
Charge the battery until specific gravity is 1.270-1.290 a
20°C (68°F).

@ Before charging battery. remove the cap from each CALIFORNIA

cell.
o Keep flames and sparks away from a charging BATTERY
battery. ELBOW
@ Tum power ON/OFF at the charger, not at the
battery terminals, to prevent sparks.
o Discontinue charging if the electrolyte temperature
exceeds 45°C (113°F).
e Ventilate when charging in an enclosed area.

e Quick charging should only be done in emergency; ClAMPER

slow charging is preferred.
BATTERY ~ /
installation BREATHER TUB~
Install the battery in the reverse order of removal. Connect
the positive cable first. then the negative cable. After instal-
ling the battery, coat the terminals with clean grease.
CAUTION
• Make sure the positive cable is not forced against
any metal parts, otherwise a short may occur.
e Route the breather tube as shown.
@ Make sure the breather tube does not bend, after the
battery has been installed into the case.

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 Charging System Output
leakage Test
Inspect for battery current leakage before testing charg-
ing output.
Turn the ignition switch OFF. Remove the ground cable
frorn the battery. Connect the ammeter between the
ground cable and battery (-) terminal.
CAUTION
.. Measure the current leakage whiie changing the
tester range from higher to lower.
.. Whiie measuring, do not tum the ignition switch
ON.

Specified Current Leakage: 5 mmA max.

Charging System Operation

NOTE
" This is a test of charging system operation. It does not
measure maximum charging output.
" The battery should be fully charged (electrolyte spe-
cific gravity above 1.270). Use of a battery with a low
charge will result in different readings.

Start the engine, warm it to operating temperature, then

turn the ignition switch OFF.
Remove the main fuse B. Connect an ammeter to the
positive (+) and negative (-) terminals of the fuse holder
as shown.

CAUTION
.. Do not hook an ammeter directly between the
battery positive (+) terminal and negative (-)
cable of the battery, or the ammeter may bum
out
NOTE
.. Use an ammeter which can measure current flow in
both directions.

Connect a voltmeter between the positive and negative

battery terminals as shown.
Start the engine and observe the meter readings:
.. Check the charging outputs at the speeds shown in the REGULATED CHARGING OUTPUT:
chart. ENGINE RPM AMPERAGE VOLTAGE
.
Charging Start RPM: aO(H ,000 rpm 900 rpm 0-2 13.5-15.5 V
NOTE 1,850 rpm 1.5 A min. 13.5-15.5 V
-
.. Measure the current after the fan motor has come to a
complete stop.

17=9
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 Charging
Charging System Output (cont'd)

Wire Harness Inspection

Disconnect the battery negative cable.

" Disconnect the battery negative cable from the

battery to prevent sparking when disconnecting
the WHT wire terminal.

Disconnect the WHTwire terminal and BLKlLT GRN wire

connector from the alternator.

Connect the battery negative cable onto the battery.

ITEM TERMINALS SPECifiCATION
Battery charging WHT (+) and Battery voltage
Measure the voltage between each wire (wire harness line ground H should register.
side) and ground as indicated on the chart. --
Battery voltage BLK/LT GRN (+) Battery voltage
Disconnect the battery negative cable to avoid sparking input line and ground (-) should register
with the ignition
which would otherwise occur when connecting each wire
switch ON.
to the alternator. ...=""

Alternator and RegulatorlRectifier

Removal
Disconnect the battery negative cable.
Disconnect the alternator WHT wire terminal and BLKlLT
GRN wire connector from the alternator.
Remove the alternator mounting bolts and alternator and
regulator/rectifier assembly.
Remove the dowel pins from the rear case cover.

Remove the O-ring and alternator damper rubbers.

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 Set the transmission in any gear. Check that the trans-
mission is in gear by trying to move the rear wheel.
Remove the nut, washer and alternator coupler A.

Disassembly
Check the rotor rotation by rotating the rotor shaft with
your finger. The rotor should rotate smoothly.
Hold coupler B with a tool, as shown, and remove the nut,
washer, and coupler B.
NOTE
o It is not necessary to remove the couplers unless
servicing the rotor front bearing and oil seal is
required. UNIVERSAl..
HOLDER

Tool:
Universal holder
07725-0030000 or commercial equivalent.

Mark the front and rear cover before removal to identify

their original position.
Remove the three screws and wire clamp.
Remove the five nuts, terminal housing, and condenser.
Separate the front cover/rotor from the rear cover/stator
by prying them apart with a screwdriver.

CAUTION
FRONT COVER
o There are three pry-point positions which have
screw threads on the front cover. Do not damage
the stator coil when prying.
-------------
Separate the stator coil from the rear cover.

__._""-""".,,,-------
CAUTION
--_.
" Do not damage the stator coil. Protect it with a
shop towel.
,------------

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 Charging
Alternator and Regulator/Rectifier (cont'd)
Condenser Inspection
SHORT MEASUREMENT
Short each terminal of the condenser as shown. Then,
check for continuity between each terminal with an
analog ohmmeter. The tester needle should swing
momentarily, then return to 00.
NOTE .~~_.

" Use a circuit tester for this test.

If continuity does exist or the tester needle will not swing,

replace the condenser.

Rotor Coil Inspection

Inspect the slip rings for discoloration.
Measure the 0.0. of the slip rings.
Service limit: 26.0 mm (1.02 in)
For rotor replacement, see page 17-15 (rotor bearing
replacement).

Check for resistance between the slip rings. There should

be light resistance.
Standard: 2.9-4.0 ohms (20° C/61 ° F)

Check for continuity between the slip ring and rotor shaft.
There should be no continuity.

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 Rotor Bearing inspection
Turn the rotor shaft bearings with your finger. The bear- FRONT
ings should turn smoothly and quietly. BEARING

Also check that the inner bearing races fit tightly on the
rotor shaft.
Remove and discard the bearings if the races do not turn
smoothly and quietly or if they fit loosely on the shaft (see
page 17-15).

NOTE
WEAR
.. Replace the front bearing, front cover, and rotor as an LINES
assembly.

BrlJsh length inspection

Replace the brushes if they are worn down to or near to
their wear lines.
CAUTION
@ Always replace the brushes in pairs.

If replacement is necessary, melt the solder securing the

brushes and pull them out of the brush holder.
Install new brushes in the brush holder with their marked
side facing to the rear cover.
Set the brushes at the installed length as shown.
Installed length: 18.0 mm (0.11 in)

Heat the soldering iron (Capacity: about 32 W). Use low- DO NOT
SOLDER ENTER
temperature (180° -200° F) solder to solder the new
brushes.
vtl~fi:RrLlL;~1 ;::::==:;r11l1
CAUTION
o Take care that solder does not enter the brush
holder, or the brush will not operate properly.
" Do not supply excess solder; align the solder

~
end with the brush holder surface as shown.
" Work quickly to avoid heat damage to the regu~
BRUSH HOLDER
lator/rectifier. SURFACE
WIRE

Cut off the surplus brush wires.

17-13
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 Charging
Alternator and Regulator/Rectifier (cont'd)

Stator Coil Inspection

Melt the solder and separate the stator coil from the
regulator/rectifier.

CAUTION
G Work quickly to avoid heatDdamage to the
regulator/rectifier.
G Hold the stator coil lead wire with pliers to
~-~~~p~!!.~~~~_._.--_.--_. . STATOR
COil

Check for resistance between the stator coil wires. There NORMAL: LIGHT RESISTANCE
should be light resistance
Standard: 0.1-0.3 ohms (20°C/68°F)

Check for continuity between the wire and stator cord.

There should be no continuity.

NOTE
@ The green part of the core is insulated. Put the tester
probe on the silver color part of the cord.•_ _~m.=__

For stator coil assembly, see page 17-16).

Fan Guide Inspection

If you need to remove the fan guide, separate it from the
regUlator/rectifier by removing the three attaching nuts.
Install the fan guide in the reverse order of removal.

fAN
GUIDE

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 Rotor Bearing Replacement
Remove the rear rotor bearing using a bearing puller.
Tool:
Bearing puller
Equivalent commercially available in U.S.A.

~BEARII\lG PULLER

Drive a new bearing onto the rotor shaft.

Tools:
Driver
....----
DRIVER

07749-0010000
Pilot, 20 mm
OTT46-0040500

- • ( 1

Oil Seal Replacement

Remove the oil seal from the front cover.

~TI~"._"" . ..__._,,,,_
Q Do not damage the cover or rotor shaft.

Apply grease to the oil seal lip and press a new oil seal
into front cover A as shown.
Tools:
Driver
07746-0030100
Attachment, 30 mm
ATTACH·
07746-0030300 MENT

@ Make the oil seal surface flush with front cover A.

17..15
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 Charging
Alternator and Regulator/Rectifier (ccmt'd)

Assembly
FRONT REGULATOR/
STATOR
COVER RECTIFIER ~
OIL B
5S N-m
SEAL
(5,S kg-m, ~ , ~
42 ft-Ib)

\~~ . @J\'1 1
FAN CONDENSER
ROTOR GUiDE REAR
COUPLER B
COVER

Heat a high-amperage soldering iron (capacity: about

110 W).
Using a high-temperature (300°C), high-lead content
solder, join the stator and regulator/rectifier by soldering
the stator coil wires on the diode terminals.

CAUTION
"Work quickly to avoid heat-damage to the
i.J{4
0.5-2.0 mm
regulator/rectifier. (0.02-0.08 in)
o Position the wires onto the terminals as shown.

Install the stator coil and regulator/rectifier assembly in

front cover, while pressing the brushes into the holder.

Install the rear cover on the regulator/rectifier and align

the marks on the front and rear covers while moving the
stator coil.
CAUTION
.:::;;:...::.::::;.,:;,:;,,;::::..:..::.._----------------
" Do not move the rear cover when aligning the
marks, or damage to the stator coil wire will
result.

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 Install the condenser and tighten the rear cover nuts.

Install and tighten the three screws securely with the wire
clamp.

Install coupler B and its washer and nut.

,,
COUPLER B
Hold coupler B with a tool, as shown, and tighten the nut
to the specified torque. ,,
Torque: 58 N-m (508 kg-m, 42 ft-Ib)
Tool:
Universal holder
07725-0030000
or equivalent commercially available in U.S.A.
,
.'"
WASHER/
NUT

Installation
Install coupler A, aligning the splines on the coupler and
alternator driven gear.

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 Charging
Alternator and Regulator/Rectifier (cont'd)
Set the transmission in any gear. Check the transmission
is in gear by trying to move the rear wheel.
Apply a locking agent to the nut threads.
Install the washer and nut. Tighten the nut to the specified
torque.
Torque: 58 Nom (5.8 kgDm, 42 ft-Ib)

Install the four damper rubbers in coupler A.

Apply oil to the O-ring and install it on the front cover.

Install the two dowel pins.
Install the alternator onto the engine, aligning the tabs of
coupler B with the damper rubber grooves.

Connect the alternator BLKlLT GRN wire connector and

WHT wire terminal onto the alternator.
Install and tighten the alternator mounting bolts.
Connect the battery negative cable to the battery.
Install the following:
" left front side cover (see page 13-8).
" right rear side cover (see page 13-8).

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 Alternator DrivelDriven Gears
Removal
Remove the starter clutch (see section 18).
Remove the alternator clutch assembly and driven gear.

Remove the primary drive and driven gears (see page

10-22).
Remove six bolts and the alternator drive gear from the
crankshaft.

Case Bearing Replacement

Turn the inner race of the bearing with your finger. The
bearing should turn smoothly and quietly.
Also check that the outer race of the bearing fits tightly in
the case.
Replacement:
Remove the bearing from the case.
Tools:
Bearing remover 07936··3710300
Remover handle 07936-3710100
Remover sliding weight 07741-0010201
Install a new alternator shaft oil pass plate and a new OIL PASS PLATE

Q@
thrust spring with the OUTSIDE mark facing out. Drive a
new bearing into the case

e Install the new bearing with its sealed side facing

inside.

Tools:
Driver 07749-0010000
Attachment, 32 x 35 mm 07746-0010100
Pilot, 17 mm 07746-0040400

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 Charging
Alternator Drive/Driven Gear (cont'd)
Alternator Driven Gear
Disassembiellnspection FLYWHEEL

Turn the outer race of the bearing with your finger. The
bearing should turn smoothly and quietly.
Also check that the inner race of the bearing fits tightly on
the shaft.
Inspect the gears or flywheel for damage or wear.

GEARS

Press the driven shaft out of the bearing.

Discard the bearing.

Remove the alternator driven sub gear and gear spring.

Separate the flywheels while prying open evenly.

NOTE
@ There are eight pry-point positions.
@ Do not damage the flywheels when prying.

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 Remove the damper springs and spring seats from the
flywheel.
Check the springs and seats for damage or fatigue.

DAMPER
SPRING

Assembly
GEAR SPRING SPRING DRIVEN
WASHER SHAFT

\ SPECIAL
DRIVEN SUB WASHER
GEAR
FLYWHEELS

Apply oil to the damper springs.

SPRING
Install the spring and spring seats into the flywheel as
shown.

XJ:<~~~' SPRING
SEATS

Assemble the flywheels, aligning the bosses with the

grooves.

CAUTION
" Do not damage the spring seats.

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 Charging
Alternator Drive/Driven Gear (cont'd)
Install the driven gear spring onto the driven gear as
shown.
Install the sub gear, aligning the gear boss with the spring
hole.

Install the special washer onto the driven shaft as shown.

SPECIAL
Install the spring washer onto the special washer with its WASHER
dished side facing the driven gears.

Install the alternator driven shaft into the flywheel, align-

ing the 110les of the flywheel and shaft.
Press a new bearing onto the shaft.

Tools:
Inner driver 8 ATTACH-
07746-0020100 INNER
MENT
DRIVER --~.
Attachment, 17 mm 1.0. B (c~.f..L.,!L..t.'V

07746-0020300

NOTE
" Support the driven shaft as shown with blocks.

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 Installation
Apply oil to the flange and threads of the alternator drive
gear bolts.
Install the alternator drive gear onto the crankshaft.
Tighten the bolts to the specified torque
Torque: 27 N~m (2.7 kg-m, 20 fNb)
Install the primary drive and driven gears (see page
10-23).

Aligning the serrated teeth of the alternator driven gear

with the drive gear teeth, install the alternator driven gear.
Install the starter clutch (see page 18-24).

17~.23

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 StarterlReverse
A & SE Models: I Model:
Service Information . . .. 18-2 Service Information .. ". 1845
Troubleshooting Troubleshooting " .. 1847
(Starter) 18-5 Starter Motor " ". 1849
Troubleshooting Diodes 18..51
(Reverse) .. . . . . . . . .. 18-8 Starter Drive Gear 18..52
Starter/Reverse
Motor ".. 18-13
Starter Clutch " .. "..... 18-22
Fuel Pump Shut-Off
(Bank Angle)
Sensor 18-25
Starter Relay
Switch A 18-26
Starter Relay
Switch B ......."... 18..26
Reverse Relay
Switch 18..27
Relay Box 18..27
Diodes 18-28
Reverse Switch 18-28
Starter/Reverse
Switch 18-29
Clutch Switch . . . .. 18-30
Reverse System . . . . . .. 18..30
Reverse Control
Unit .. . . . . . . . . . . . . .. 18..39
Starter Relay
Regulator . . . . . . . . . .. 18-41
Reverse Resistor
Assembly 18..42
Power Control Relay 1843
Speed limiter Relay 1844
Reverse lever
Switch 1844

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 StarterJReverse
Service Information (A & SE Models)
@ The starter/reverse motor can be serviced without removing the engine on the frame. To service the starter clutch
and reverse system, the engine must be removed from the frame. See Section 6.
@ When the speed limiter is activated during reverse running, followed by the electrical motor brake, the motorcycle
stops running in reverse and the reverse indicator goes out. To use reverse again, it is necessary to return the
reverse lever to the OFF position and then return it to the ON position.
@ When inspecting the starter/reverse system, check the system components and wiring step-by-step according to
the troubleshooting chart.

G~\
f!
;;
\\
_\ G~-'
~(Qp r~~
,

~ 12 N-m [1.2 kg-m.

9 ft-Ib)

Torqu~ Valu~s
Starter one·-way clutch socket bolt 16 N-m (1.6 kg-m, 12 ft-Ib)
Starter clutch mounting bolt 75 N-m (7.5 kg-m, 54 ft-Ib)
Reverse switch 12 N-m (1.2 kg-m, 9 ft-Ib)
Shift drum lock arm bolt 12 N-m (1.2 kg-m, 9 ft-Ib)
Oil pump driven sprocket bolt 18 N-m (1.8 kg-m, 13 ft-Ib)
Reverse shifter shaft bolt 14 N-m (1.4 kg-m, 10 ft-Ib)

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 Circuit Diagram
m
A & SE Only:

IGNTION SWITCH
LOCK
1 NEUTRAL U'ClICATOR 12V HW
"'OFF
•• "",," I ACe
I REVERSE NlICATOR f2V 3 tW r~1 ION
I SIDE STAfC) INDICATOR 12V 34W
REVERSE CONTROL UNIT
4 OIL PRESSURE WARNING f2V 3.4W I
-r- ..,..---,_-.,..-_--r l

POSITIONUGHT~
1%V2cp(l4W)
--
FUSE BOX RELAY BOX
I . FUSE Np ClIlCUlT RELAY Np ClIlQMT
8 TAIL ILLUMI 15A 3 TAIL (MAIN)
9 STARTER/REVERSE 5A 61GN CRUISE
--- 1I1~ CFlUlSE
12 HEAD RELAY
15A
5A

REVERSE CONTROL UNIT

GN9 NEUTRAL SWITCH

SPEED POWER CONTIlOL

LIMITER RELAY RELAY 2

3 I 6lVBAT ~ SlOE STANO SWITCH

I. ~ t:=:=;
14 REVERSE RELAY

BLK lUCK IIAN IlIlOWN

va YEU.OW 0AIi OIlANGE
A On Radiator. Noar Thermostat,c • an MOtor Swotcr BLu BlUE L.HILU UGHT BlUE
B On Engltlf. Noar Coolant Tempora ture Swotcn GAN GREEN L.Hilllli L.IGHT GAEDl

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RED PlNIl
C On Enc,n•. Noa' o.pstlC' RED -
WIlT WIITE lillY liI!AY
DOn ....... UDPer o.pst'ck

18-3

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 StarterlReverse
Service Information (A & SE Models) (ccmt'd)
System location
SPEED LIII/IiTER REVERSE
FUSE (GliA) LEVER
SIIIIITCH
FUEL PUMP SHUT-OFF
(BANi( ANGLE)
SENSOR
STARTER

DIODE
ASSEMBLV

~=;;;;,:.,;,_ _ OIL PRESSURE

SWITCH

Starting System Diagram

BLK~WHT
II (15A)
FUSE _ _- R E l A
• V'---']

VEL/A£O~~IllKJLTGRNTIJ
STARTER/REVERSE SWITCH ~ ~
dt BANK ANGLE
SENSOR

~ f§
wtrr..L! -J L _ _-
BLK -<f........D=--~i==.--9RNJWHT
FUSE 9 (15A) REVERSE RElAV
SWITCH
RED/I'IHT

...-
l
8LUIRED
T
-~ D3
02
GRNIREO~
CLUTCH
:'. SWITCH

~REDl
D5

..:.
LT-GRN/A£O
BLK-Q
IGNlTON SWITCH BlKiREO
I D4

1.- VELiA£O

:.-
07 I
III P.
01

STARTER V IlIOOE ASSV

RElAV

.~!1
SWITCH A

MAIN FUSE A (lOA)

SVIITCH

ill' . lUCK IlAN IlRO\IIN

YEl. YElLO'Il ORN ORANGE

-
IlLU . IlLUE LHJlU LIGHT Bl~
CiAN- GREEIl IT·GRN lIGHT GREEIl
RED RED PNl
Wtrr WKTE GRY GSlAY

18-4
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 Troubleshooting (A & SE Models)
The starter/reverse motor for starting does not tum.
NOTE
Inspect the following before troubleshooting the starter system:
e Be sure the battery is fully charged and in good condition.
e Be sure the reverse lever is in the OFF position and the reverse cable is properly adjusted (see page 3-30).
e Be sure the reverse switch is not damaged (see page 18-31).
e Be sure the following fuses are good: main fuse A (30A) - inside starter relay switch A; fuse 9 (15A) ~ inside the fuse box;
fuse 11 (15A) - inside the fuse box; fuse 5A ~ on the left side of the battery.
e Be sure the fuel pump shut-off (bank angle) sensor is installed properly (see page 18-25).

-
BATTERY CONNECTIONS: Check battery ter- Bad
minal connections for corrosion and looseness. Connection
e Loose or corrosive contact of terminals.
Check the cable for an open or short circuit.
o Open or short circuit in battery cables.
~ Good Connection

STARTER RELAY SWiTCH A CONNECTIONS: Bad

Check starter relay switch A terminal connections Connection
for corrosion and looseness. Check the relay switch e Loose or corrosive contact of terminals.
4P-RED connector for loose or poor contact. " Loose or poor contact of the relay switch A connector.

~nnection
STARTER RELAY SWITCH B CONNECTIONS: Bad
Check starter relay switch B terminal connections Connection
for corrosion and looseness. Check the relay switch " Loose or corrosive contact of terminals.
2P-WHT connector for loose or poor contact. " Loose or poor contact of the relay switch B connector.

~ Good Connection
Bad
STARTER MOTOR CONNECTION: Check starter
Connection
motor terminal connection for corrosion and loose- • Loose or corrosive contact of terminals.
ness and check the cable for open circuit. • Open circuit in motor cable.

~OOd Connection
GROUND CABLE CONNECTIONS: Check the Bad
ground cable connections near the dipstick for Connection
" Loose or corrosive contact of cables.
corrosion and looseness and check the cables for
• Open or short circuit in ground cables.
open or short circuit.

! Good Connection
Motol"
Doesn't Turn
MOTOR: Apply battery voltage to the starter • Faulty starter/reverse motor (see page 18-13).
positive terminal and check its operation.

! Motor Turns
WIRINGIIGNiTION SWiTCH: Disconnect the
3P-G RN connector from the connector holder on
No Click the rear fender. Measure the voltage between the
RELAY 6: Connect all connections properly. When WHT (+) and GRN H wires and between the RED/
the ignition switch is turned ON, you should hear WHT (+) and GRN (~). Battery voltage should
relay 6 click (see page 18-27). register with the ignition switch in ON.

! Click 1 Yes ~ No
• Loose or poor contact of 22P-BLK
and 22P-RED connectors or 8P-BLK
connector above the left cooling fan.
" Open or short circuit in main or sub
wire harness.
" Faulty ignition switch (see page 19-20).
" Faulty relay 6 (see page 18-27).

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 StarterlReverse
Troubleshooting (A & SE Models) (col'lt'd)

FUEl PUMP SHUT-OFF (BANK ANGLE) SENSOR:

Inspect the bank angle sensor (see page 18-25).

Continuity No Continuity Good No Good

• Faulty relay 6. • Loose or poor con- • FaUlty bank
tact of the 3P-GRN angle sensor
WIRING CONNECTORS: Disconnect the 9P-RED connector.
connector from the connector holder on the right
cooling fan. Measure voltage between the BLKlLT
GRN (+) wire and ground (-). Battery voltage
should register with the ignition switch ON. No
l--~c~--1iOo1iOo • Loose or poor contact of connectors.

~o:6QQQ]
• Open or short circuit in the main wire harness.

9P-RED CONNECTOR

STARTER/REVERSE SWITCH: Using the above

No Good
connector, check the starter/reverse switch for • FaUlty starter/reverse switch.
continuity (see page 18-29).

~ Good

STARTER RELAY SWITCH A: With the ignition No REVERSE RElAY SWITCH: Turn the ignition
switch ON, push the starter/reverse switch. You switch ON, you should hear the reverse relay
should hear starter relay A click (see page 18-26). switch click (see page 18-27).

~ Yes ~ No

STARTER RELAY
iF"'--~--------'-' --
WIRING/CONNECTORSIDIODES: Disconnect WIRING/CONNECTORSIDIODES:
SWITCH A: Check the reverse relay switch connector and mea- Disconnect the reverse relay switch
starter relay switch A sure voltage between the BLKlBRN (+) and connector and measure voltage
for continuity (see page BLU/RED H wires on the wire harness side. between the YEURED (+) and BLKI
18-26). Battery voltage should register with the ignition RED (-) wires on the wire harness
Continuity I No switch ON, the starter/reverse switch pushed, side. Battery voltage should register
+Continuity and the gear in neutral. with the ignition switch ON.

• FaUlty starter relay

switch A.
REVERSE RELAY SWITCH: • Faulty reverse diode
Check the reverse relay switch assembly (see page
18-28).
for continuity (see page 18-27).
• Loose or poor contact of
• Faulty starter relay switch A.
• Faulty gearshift sensor
~ ContinUity ~ No Continuity
the 22P-RED connector.
• Open or short circuit
(see page 16-13). • Loose or poor • Faulty reverse in main or sub wire
• Loose or poor contact of contact of the relay switch. harness.
22P-RED and 6P-BLK relay connector. • FaUlty reverse switch
connectors. (see page 18-28).
L.- ~ 0 Faulty starter relay
• Faulty reverse diode assembly switch A. • Faulty reverse lever
(see page 18-28). switch (see page 18-44).
• Faulty reverse
• Open or short circuit in main or
relay switch.
sub wire harness.

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 STARTER RELAY SWITCH B: With the ignition No
!--""'---~~ e Faulty starter relay switch B.
switch ON, push the starter/reverse switch. You
should hear the starter relay switch B click (see • Loose or poor contact of 6P-WHT, 22P-RED or
page 18-26) 2P-WHT connectors.
• Open or short circuit in main or sub wire harness.
e Faulty reverse diode assembly (see page 18-28).

STARTER RELAY SWITCH B: Check the starter

relay switch B for continuity (see page 18-26).

No Continuity
-----p~. Faulty starter relay switch B.

The stanerlreverse motor turns in neutral position, but does not turn in gear with the side
stand up and the clutch lever pulled in.
"

WIRING/COMPONENTS/CON NECTORS: No CLUTCH SWITCH: Check the clutch switch for

Disconnect the 3PGRN conne ctor from the continuity (see page 18-30).
connector holder behind the cr uise control valve
unit. Measure voltage between the GRNIWHT
(+) and GRN (-I Wires of the w ire harness side.
Battery voltage should register with the ignition
Continuity ! No Continuity

switch ON, the clutch lever app lied, the trans- DIODE: Check the • Faulty clutch switch.
mission in any gear except neLltral, and the reverse diode assembly
starter/reverse SWitch pushed. (see page 18-28).

Yes
,~-

! Good No Good

• Loose or poor contact • Faulty reverse

~~ID-E~S~~~A~N~D~~W~~~~H-:~Check the Side stand of 4P-WHT, 9P-BLK, or diode assembly.
L:Wltch Itself (see page 16-14). 22P-RED connector.

~~or~~:~------~~A-b~n~o~rm~a-I--' • Open or short circuit

of main or sub wire
harness.
• Loose or poor contact • Faulty side stand switch.
of 3P-GRN connector

Starter motor turns engine slowly.

• Low battery.
• Excessive resistance in CIrcuit.
• Faulty starter motor (see page 18-13).

Starter motor turns, but engine does not tum.

e Faulty starter clutch (see page 18-22).
• FaUlty starter drive/or driven gear.
• FaUlty starter Idle gear.

Starter motor and engine tum, but engine does not start.
• Faulty ignition system.
• Engine problems, see engine related sections.

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 StarterlReverse
Troubleshooting (A & SE Models) (cont'd)
The starter/reverse motor does not tum for reverse.
NOTE
e When the speed limiter is activated during reverse running, followed by the electrical motor brake, (when the motor
is overloaded more than three seconds), the reverse system is turned OFF and the reverse indicator goes out. To
use reverse again, it is necessary to return the reverse lever to the OFF position and then return it to the ON
position.
o Inspect the following before troubleshooting the reverse system:
- Be sure the transmission gear is in neutral position.
- Be sure the reverse lever is in the ON position and reverse cable is properly adjusted.
- Be sure the side stand is up.
- Be sure the following fuses are good: fuse 5A - the left side of the battery
reverse fuse 65A - under the seat.

REVERSE LEVER SWITCH: Check the No Continuity

reverse lever switch for continuity (see .. 0 Faulty reverse lever switch
page 18-44).
'=-l~c~o-n~t-in-u-it-y---

18..8
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 No good
WIRING/CONNECTORs/COMPONENTS: " Loose or poor contact of connector.
Perform the reverse control unit system .. Open or short circuit in wire harness.
inspection (see page 18-40). .. Reverse indicator bulb burned out.
..
.. Faulty oil pressure switch (see page 19-23).
Good
" Faulty power control relay(s) (see page 18-43).
"-"""''''= .. Faulty side stand switch (see page 16-14).
Try with a reverse control unit known to be Good
good. '.. Faulty reverse control unit.
".

The reverse system works, but reverse iD'lldicator does D'llot come OD'll.
.. Burnt out reverse indicator bulb. .. Faulty reverse control unit.
.. Open or short circuit in wire harness.
The reverse speed is fast (above 1.8 kmlh OD'll a flat road).
The motorcycle lunges at the beginning of
Yes
...,,----...... Go to "The motorcycle lunges at the beginning
the reverse operation.
of reverse operation" (see page 18-11).
No
REVERSE RESISTOR: Check the reverse
1 - = - - -.... 0 Faulty resistor.
resistor (see page 18-42).

--------------------+4> . Faulty reverse control unit.

.. Open or short circuit in wire harness.
The reverse speed is slow (below 1.0 kmlh OD'll a flat road)
" Undercharged or faulty battery.
@ Faulty resistor.
@ FaUlty power control relay.
" Faulty starter/reverse motor.
lack of uphill power
Battery: The battery is fully charged and No
in good condition. .. Undercharged battery.
.. Faulty battery.

1-=----4>" Faulty resistor.

MOTOR OUTPUT: Place the motorcycle POWER CONTROL RELAY: Check the
on its center stand. work the reverse ---4>11» power control relays 1 and 2 (see page
system with the brake pedal applied. The 18-43).
voltage is 4 V min. between the PNKlWHT
(+) wire terminal of the 22P-RED connector Normal Abnormal
and ground.

Yes --------------" @ FaUlty reverse control

unit.
" Faulty power control
relay(s).
" Faulty starter/reverse motor.

18..9
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 StarterlReverse
Troubleshooting (A & SE Models) (cont'd)
The reverse system works, but the motor does not stop if it is overloaded more then three
seconds.

MOTOR VOLTAGE: Place the motorcycle No RESISTOR: Check the reverse resistor (see
on its center stand. Work the reverse ~-,,~-". page 18-42).
system with the brake pedal applied. The 'l'~"';;rmal = ",,-- --". "-r«\bn;;mal
voltage is 2 V max. between the PNKJWHT
(+) wire terminal of the 22P-RED connector
and ground. @ Faulty motor. @ Faulty resistor.
.. Faulty power control relay(s).

- - - - - - - - . - ._ .••- ~ , ~ .. Faulty reverse control unit.

The speed limiter system is not activated at or above 2.5 kmlh in reverse.
Abnormal
SPEED LIMITER RELAY: Check the speed
limiter relay (see page 18-44). _ _ _ _ _-.d
.=--~ . Faulty speed limiter relay.

Normal

r"RESISTOR: Che;'~;'~~or (Se;;;g eLAbn~rma~ Faulty resistor.

_-1'-
@

L2.8-42).
--r-"~~r:~1 " $ "=. ill ill

SPEED LIMITER RELAY LINE: Check the Normal

speed limiter relay line (see page 18-41). -"'~ .. Faulty starter/reverse motor.

-L~n~ .--=-+ @ Open or short circuit in wire harness.

@ Loose or poor contact of connectors .
.. Faulty reverse control unit.

Reverse operation is rough, or reverse motor runs poorly.

[ . .=.--".'--';U
CONNECTION. Check the 6P-WHT
loose
pooror
connection
connector for poor or loose contact. =-" D> @ Loose or poor contact of the 6P-WHT connector.

--"E~"~~~e~tion _ _ ~
@ Faulty reverse control unit.

Continues operating In reverse even if the starterfreverse switch is free.

@ Faulty starter/reverse switch.
.. Faulty starter relay switch A.
.. Short circuit in YEURED wire.

18-10
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 Stops immediately when reverse operation is initiated.

WIRINGIFUSES: Perform the reverse control Abnormal

~-----Ii"" Burnt reverse fuses (5A).
unit system inspection with No. 12 and 13
.. Open or short circuit in wire harness.
terminals (see page 18-40).
.. Loose or poor contact of connectors.
~ Normal

STARTER RELAY REGULATOR: Perform Abnormal

.. Loose or poor contact of connectors.
the starter relay regulator inspection (see
.. Open or short circuit in wire harness.
page 18-41).
":,:,:,:,:,:,:"",:',,

Normal

POWER CONTROL RElAY(s): Remove Normal

the power control relay(s) and inspect the Ii" .. Faulty reverse control unit.
relay(s) (see page 18-43).

Abnormal

"w;--
0o" Faulty power control relay(s).

The motorcycle lunges at the beginning of reverse operation.

REVERSE CABLE: Check that the reverse

cable is properly adjusted (see page 3-30).
1------... Misadjusted reverse cable.

REVERSE SWITCH: Check the reverse Abnormal

switch (see page 18-28).
I-w-----..... Faulty reverse switch.
Normal

~'~""- =-
STARTER RELAY SWITCH B: Check the Abnormal
starter relay switch B (see page 18-26). .. Faulty starter relay switch B.
Also check the relay switch B GRN/RED " Short circuit in GRN/RED wire.
wire for short.

Normal
IV

RESISTOR: Check the reverse resistor (see Abnormal

.. Faulty resistor.
page 18-42).

Normal

" Faulty reverse control unit.

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 StarterlReverse
Troubleshooting (A & SE Models) (cont'd)

WIRING: Check for continuity between the Continuity

" Short circuit in BRN/RED wire.
starter relay regulator BRN/RED wire and
ground. " Faulty reverse relay switch (see page 18-27).
" Faulty reverse control unit.
No Continuity

Oil PRESSURE SWITCH: Check the oil Abnormal

" Faulty oil pressure switch.
pressure switch (see page 19-23).
. "

Normal

SIDE STAND SWITCH: Check the side Abnormal

stand switch (see page 16-14). " Faulty side stand switch.

Normal
"' ill> " Faulty reverse control unit.

During reverse oper~th;m, the he~dlight goes out

" Go to "Headlight goes off during reverse operation" (see page 19-5).
During reverse oper~tlon, the motor Id!es.
" Misadjusted reverse cable (see page 3-30).
" Faulty reverse shift system (see page 18-31).
Tr~nsmlsslon is h~rd to shift with reverse lever in OFF position.
" Misadjusted reverse cable (see page 3-30).
" Damaged shift drum lock system (see page 18-33).
During fOI'W~rd oper~tion, the r~r wheel Is locked suddenly.
" Damaged reverse shift system (see page 18-31).
After shifting into reverse, the tr~nsmission Is ~sy to shift.
" Damaged shift drum lock system (see page 18-33).
" Misajusted reverse cable (see page 3-30).
H~rd to shift to reverse.
" Damaged reverse shift system (see page 18-31).
" Faulty reverse cable.

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 Starter/Reverse Motor (A & SE Models)
Removal WIRE HARNESS

~~~~
Remove the following:
--. -- -. 'y - ~~.-.,.
" rigllt front side cover (see page 13~8).
; i7'
" battery and battery case (see page 17~7). "~-"
::----------.
-"':rJ~
'" (yy
Remove the connector from the connector holder. WIRE CLAMP -~- 'q\ _. .i f!.-I__.
STARTER MOTOR
Remove the wire harness from the wire clamp. CABLE
Disconnect the starter motor cable from the motor.
Remove the motor mounting bolts and motor from the
CONNECTOR
engine. HOLDER

Disassembly
Remove the motor attaching bolts and separate the
motor reduction gear case from the starter motor.
Remove the O-ring.

Remove the starter reduction gear base and washer.

Remove the rear cover and O-ring.

Remove the armature.

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 Starte everse
StarterlReverse Motor (A & SE Models) (cont'd)
Inspect the brushes and measure the brush length.

Service limit: 6.0 mm (0.24 in)

Check the continuity between the motor cable terminal

and brushes with insulated wire. There should be conti-
nuity.

Check for continuity between the motor cable terminal

and motor case. There should be no continuity.

Inspect the commutator bars for discoloration. Bars dis-

colored in pairs indicate grounded armature coils.
Turn the outer race of the bearings with your finger. The
bearings should turn smoothly and qUietly.
Also check that the inner race of the bearings fit tightly in
the shaft.

BEARINGS

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 Check for continuity between parts of commutator bars.
There should be continuity. COMMUTATOR
BAR

Check for continuity between the commutator bars and

armature shaft. There should be no continuity.

Remove the brush holder.

Remove the terminal from the motor case.
Remove the brushes.

Reduction Gear Case SCREWS

Disassemblyllnspection
Remove the snap ring and washers from the starter shaft.
Separate the reduction gear case from the starter shaft
case by removing three screws.

SHAFT

WASHERS
SNAP RING

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 rterlReverse
StarterlReverse Motor (A & SE Models) (cont'd)
Remove the gear holder, dowel pin, and reverse reduc-
tion gears from the reduction gear case.
Remove the starter shaft from the starter shaft case.

GEARS

Check the reverse reduction gears for excessive or

abnormal wear. REVERSE REDUCTION GEARS

Check the starter reduction gears for excessive or abnor-

STARTER REDUCTION GEARS
mal wear.
Check the planetary gear needle bearings for damage or
excessive wear. I~
NEEDLE
BEARINGS

With the starter shaft installed into the bearing, turn the
shaft with you finger, as shown. The bearing should turn STARTER SHAFT
smoothly and quietly.
Replace the bearing, if necessary.

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 Inspect the dust seal of the starter shaft case for fatigue
or damage.

Turn the reverse shaft with your finger. The bearing

should turn smoothly and quietly. REVERSE SHAFT

If necessary, replace the reverse gear case assembly.

Reduction Gea.r Case Assembly

STARTER

((t:::::::---

DOWEL
l'tN WASHERS
REVERSE
GEAR SHAFT O-RING
HOLDER

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 StarterlReverse
Starter/Reverse Motor (A & SE Models) (cant'e!)

Apply grease to the gear teeth and reverse shaft bosses.

Install the dowel pin onto the reverse reduction gear
DOWEL
case. PIN

~
Install the sun gear, aligning the gear groove with the
dowel pin.
Install the planetary gears onto the shafts.

Install the gear holder, aligning the holder groove with the
dowel pin.
Check the gears for rotation. They should rotate freely.
GEAR HOLDER

Pack the bearing cavities with grease.

STARTER SHAFf
Install the bearing onto the starter shaft.
Install the starter shaft and bearing into the starter shaft
case.

Apply motor oil to the O-ring and install it onto the starter
shaft case.
Apply grease to the dust seal of the shaft case.
Install the reduction gear case assembly onto the starter
shaft case, aligning the dowel pin of the gear case with
the groove of the shaft case.

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 Install and tighten the three screws securely.
Install the washers and snap ring onto the starter shaft.

NOTE
" Install the thinner washer, inside: the thicker one, out-
side.

Check the reduction gear case for rotation.

SNAP RING
WASHERS

Motor Assembly

SCREW

e-===:'::'==:::J:';:Z:''T:=~''~~"

i
i

i
J

Install the cable terminal and brushes.

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 Starte everse
Starter/Reverse Motor (A & SE Models) (cont'c!)

Install the brush holder, aligning its tab with the case
groove.

Install the brushes into the brush holder.

Pack the bearing cavities with grease.
Install the armature into the case.

Install the O-ring.

Install the rear cover, aligning the tab of the brush holder
with the slot in the rear cover.

Install the washer.

Install the starter reduction gear base, aligning its groove
with the case tab.

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 Install the a-ring onto the starter reduction gear case.
Install the starter reduction gear case, aligning the
grooves in the gear holder and sun gear with the starter
motor case tab.

Install the motor attaching bolts and tighten them

securely.

Installation
Apply oil to the a-ring and install the starter/reverse WIRE CLAMP
motor onto the engine.

NOTE
e Installation is easier if the rear wheel is rotated with
the reverse lever in the ON position.

Install the starter motor mounting bolts.

Tighten the bolts.

NOTE
e Two of the mounting bolts are dowel bolts. Install
them as shown.

Connect the starter motor cable to the terminal. Install the

wire harness onto the wire clamp.
Install the wire harness onto the wire clamp.
Install the connector onto the connector holder.
CONNECTOR
Install the following: HOLDER

e battery case and battery (see page 17-7).

e right front side cover (see page 13-8).

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 Starter/Reverse
Starter Clutch (A & SE Models)
Removal
Remove the rear case cover (see page 8-7).
Hold the starter clutch with the universal holder and
remove the starter clutch bolt.
Tool:
Universal holder
07725-0030000
Remove the washer and bearing.
Remove the starter clutch assembly.

Inspection/Disassembly
Make sure that the starter driven gear only rotates
clockwise.
Remove the starter driven gear and needle bearing from
the starter clutch.

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 Remove the bolts using the special tool.
Tools:
Torx bit, T-30, commercially available

Check the starter driven gear boss and teeth for wear or
damage. ROLLERS

Check the one-way clutch rollers for wear or damage.

BOSS

Assembly
Install the one-way clutch onto the starter clutch outer CLUTCH
with its flange side facing up as shown. OUTER

Install the starter clutch cover.

\
FLANGE SIDE

Apply a locking agent to the starter one-way clutch socket

bolt threads as shown. L~~~~NG
:GENT
FLYWHEEL HOLDER
U-.. .
Install and tighten the bolts with the tools.
3mm
Torque: 16 Nmm (1.6 kgmm, 12 ftmlb) "7 mm

Tools:
Torx bit, T-30, commercially available
Flywheel holder, commercially available

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 StarterJReverse
Starter Clutch (A & SE Models) (cOi1t'd)

Install the needle bearing into the starter clutch.

Install the starter driven gear into the starter clutch,
rotating it clockwise.

Installation
Install the starter clutch assembly onto the crankshaft.

Install the bearing, washer, and starter clutch bolt.

.. Install the washer with its chamfered surface facing

out. m _ _• _ _. " ' m _ _

Install the washer with its chamfered surface facing out.

Hold the starter clutch with the universal holder and
tighten the bolt to the specified torque.
Torque: 75 N-m (7.5 kg-m, 54 ft-Ib)
Tool:
Universal holder
07725-0030000
Install the rear case cover (see page 8-33).

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 Fuel Pump Shut-Off (Bank Angle) Sensor (A & SE Models)
Inspection
Remove the seat (see page 13-8), trunk, and right
saddle- bag (see page 13-17).
Turn the ignition switch ON and measure voltage
between the following terminals of the bank angle sensor
with the 3P-GRN connector connected. ~----_.,-

,- ",,"""

Terminals Standard Voltage

"""''''' ....""
,,=»
REDIWHT (+) and GRN H 0-1V
WHT (+) and GRN (-) 10 -14 V
~'"

Remove the air pressure sensor assembly from the rear

fender stay.
Remove the screws and bank angle sensor.
Turn the ignition switch OFF. NORMAl 49° BANK ANGLE
POSITION POSITION
Place the bank angle sensor horizontal with the connec- \
tor connected as first shown, and turn the ignition switch

~
ON.
The bank angle sensor is normal if relay 6 (IGN. CRUISE)
49~ i\
clicks and the power supply line is closed.
Incline the bank angle sensor approximately 49 degrees
to the left or right with the ignition switch ON.
The bank angle sensor is normal if relay 6 clicks and the
power supply is open.
49° (APPROXIMATELY)
NOTE
@ If you repeat this test, first turn the ignition switch
OFF; then ON.

Install the bank angle sensor in the reverse order of

removal.

NOTE
" Do not install the bank angle sensor upside down.
The starter/reverse motor will not turn over.

18-25
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 StarterlReverse
Starter Relay Switch A (A & SE Models)
Operation Inspection
STARTER RELAY SWITCH A
Remove the right rear side cover (see page 13-8).
Depress the starter/reverse switch button with the igni-
tion switch ON.
The relay primary coil is normal if it clicks.

ContimJity Inspection
Disconnect the battery negative cable from the battery.
Disconnect the relay connectors and remove starter
relay switch A.
Connect an ohmmeter and 12 V battery to starter relay
switch A, as shown. The switch is normal if there is
continuity.

BATTERY 12 \i

Starter Relay Switch B (A & SE Models)

Remove the right front side cover (see page 13-8).
Depress the starter/reverse switch button with the igni-
tion switch ON.
The relay primary coil is normal if it clicks.

STARTER RELAY SWITCH B

Continuity Inspection
Disconnect the 2P-BLK connector and relay terminals.
Remove starter relay switch B.
Connect an ohmmeter and 12 V battery to the starter
relay switch B as shown. The switch is normal if there is
continuity.

18..26
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 Reverse Relay Switch (A & SE Models)
Operation Inspection
Remove the seat.
Turn the ignition switch ON.
The relay primary coil is normal if it clicks.

Continuity Inspection
Remove the reverse relay switch.
Connect an ohmmeter and 12 V battery to the reverse
relay switch as shown. The switch is normal if there is
continuity.

BATIERY 12 V

Relay Box (A & SE Models)

Operation Inspection
Remove the left rear side cover (see page 13-8). Open
the relay box cover.
Relay 3 and 6:
When turning the ignition switch ON, the relay primary
coil is normal if it clicks.

Continuity Inspection
Remove the relay.
Connect an ohmmeter and 12 V battery to the relay, as
shown. The relay is normal if there is continuity.

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 StarterJReverse
Diode Assembly (A & SE Models)
Continuity inspection
Remove the right saddlebag (see page 13-17). Remove the
diode assembly from the stay. Disconnect the connector
from the diode assembly.
NOTE
~---~_.

~ The eight diodes are integrated in the diode assembly.

They are used in the following circuits:
01: Ground of starter relay switch B coil
02: Ground of reverse relay switch (neutral switch side)
03: Ground of reverse relay switch (clutch switch side)
I
04: Ground of reverse relay switch coil (reverse switch
side)
05: Ground of reverse relay switch coil (neutral switch
side)
06: Ground of neutral indicator
07: Power source of reverse relay switch coil
08: Power source of headlight relay

Perform the continuity check for each diode as follows:

Normal direction: Continuity
,~"'~-""''''
'""-,---.' "---'--""'-r-"-
DIODE 01 02 03 04 05 06 07 08
-""
G;) Probe 6 10 3 6 10 10 1 5
e Probe 11 7 7 9 9 8 2 _ , b4. - -
Reverse direction: No continuity
""" 2
DIODE 01 02 03 04 05 06 07 08 BLK/WHT
-",,-_.~~
F---""
G;) Probe 11
",<u
7 7 9 9 8 2 ......!-
e Probe
L----.
6 10 3 6 10 10 1 5

NOTE
o The preceding test chart is for a positive ground ohm-
meter. The test results will be reversed if a negative
ground ohmmeter is used.

Reverse Switch (A & SE Models)

inspectionlRemovai
Remove the right front side cover (see page 13-8).
Disconnect the GRN/ORN wire terminal from the reverse
switch.
Check for continuity between the switch terminal and
ground, as shown.
There should be continuity with the reverse lever in the OFF
position; no continuity with the lever in the ON position.
Perform the next check, if necessary:
Remove the reverse switch and washer. Inspect the inside
terminal's operation. It should move in and out smoothly.
Check for continuity between the terminals. There should be
continuity.
Check the reverse shift system, if necessary (see page
18-31 ).

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 Installation
Install the reverse switch with a new sealing washer.
Tighten the switch to the specified torque.
Torque: 12 I\I-m (1.2 kg-m, 9 ft-Ib).
Install the removed parts in the reverse order of removal.

NEW SEALING
WASHER

Starter/Reverse Switch (A & SE Models)

Inspection
Remove the right fairing lower cover (see page 13-12).
9P-RED CONNECTOR
Disconnect the 9P-RED connector from the connector
holder on the right cooling fan.

Continuity should exist between the color coded wires in

the chart below

-_.• ..
_~""

Color B LKI YEURED BRN/WHT BLU /WHT

LT GRN
Free
.~"'"
0--- r-o
Push o --- -0 STARTERI
REVERSE
SWITCH

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 Starter/Reverse
Clutch Switch (A & SE Models)
Inspection
Disconnect the clutch switch wire connectors.
Check for continuity between the switch terminals.
There should be continuity with the clutch lever pulled in;
no continuity with the lever released.

Reverse System (A & SE Models)

Cable Replacement
Remove the reverse joint bolt and reverse lever from the
reverse drum.
Remove the fairing inner covers (see page 13-12).

Disconnect the reverse cables from the reverse drum.

Remove the reverse drum.
Disconnect the reverse cables from the reverse shift arm.
Remove the cables.
Install new cables to the reverse drum. Then connect
them to the shift arm.

NOTE
@ Apply grease to the reverse drum pivot.
o Connect the upper cable of the reverse drum to the
upper side of the shift arm.

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 Adjust the reverse cables (page 3-30).
Install the fairing inner covers (see page 13-12).
Install the reverse lever, aligning the lever pin with the
drum hole. Tighten the joint bolt securely.
Check the reverse operation and readjust the cables, if
necessary.

Reverse Shift System Removal

Disconnect the reverse cables from the shift arm.

NOTE
o Mark the cables to indicate their original position,
before disconnecting them.

-..- EL-~r

~_. ~ ..
LOWER
( cC)
CABLE

Remove the shift arm bolt and collar.

Remove the reverse shifter shaft bolt. Then remove the
collars, springs, and shift arm.
Check the shift arm ball joints for operation. The joints
should rotate smoothly.

Remove the needle bearing and washer.

Remove the rear case cover (see page 8-7).

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 Starte everse
Reverse System (A & SE Models) (con~'d)

Remove the washer and reverse idle gear.

Remove the starter idle gear and shaft.

Remove the reverse shifter shaft assembly.

Remove the roller pin from the shaft.

Remove the snap ring and disassemble the shaft

assembly.
Check the needle bearings for damage or excessive
wear.
Check the reverse shift gear teeth for excessive or
abnormal wear. SNAP
RING
Check the reverse shifter holes and groove for damage or
{1 I
wear.
/1 (J
BEARINGS
WASHER

Remove the bolts and starter drive gear holder.

Remove the dowel pins.

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 Turn the starter drive gear with your finger.
The ball bearing should turn smoothly and quietly.
Also check that the outer race of the bearing fits tightly in
the holder.
Replace the bearing, if necessary (see below). GEAR
Check the needle bearing for damage or abnormal noise.
Replace it, if necessary (see page 18-34).
Also check the gear teeth for damage or wear.

BALL BEARING

Shift Dmm lock System Removal

Remove the following:
@ starter clutch (see page 18-22).
e primary driven gear (see page 10-22).
Q oil pump sprocket bolt and washer.
@ oil pump sprocket, drive chain, and primary driven gear
boss as an assembly.
o drive chain guide.

Remove the bolt and shift drum lock arm assembly.

Bearing Replacement
-- Ball bearing
Hold the gear holder with a suitable tool and press the
starter drive gear out of the bearing.
Tool:
Pilot, 20 mm
07746-0040500
Drive the ball bearing out of the holder.

18=33

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 StarterlReverse
Reverse System (A & SE Models) (cont'd) ~~~~

Hold the gear holder with a suitable tool and press the
bearing into the holder.
Tools:
Driver
07749-0010000
Attachment, 37 x 40 mm
07746-0010200
Pilot, 20 mm
07746-0040500

Hold the bearing inner race with the inner driver and press
the starter drive gear into the bearing.
Tools:
Attachment, 20 mm, 1.0.
DRIVE
07746-0020400 GEAR
Pilot, 20 mm
07746-0040500
ATTACHMENT

- Needle bearing
Remove the starter drive gear (see page 18-32).
Hold the gear holder in a vise with a block as shown and
drive the reverse stopper shaft and collar out of the
holder.
Tool:
Pin driver, 4 mm
07944-SAOOOOO
Remove the needle bearing out of the holder.

Press the new needle bearing into the holder.

Tools:
Driver
07749-0010000
Attachment, 24 x 26 mm ....'--DRIVER
07746-0010700
ArfACHMENT
NEEDLE
__- - BEAR INC

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 Drive the reverse stopper shaft with its collar into the
holder.
NOTE
.~---------, "'---_ ~~ ,-
e Keep the installed height as shown.

Install tho starter drive gear.

Shift Drum lock System Installation

Install the cam, collar, and return spring onto the shift
drum lock arm.

Apply a locking agent to the threads of the shift drum lock

arm bolt.
Install the shift drum lock arm assembly and tighten the
bolt to the specified torque.
Torque: 12 N~m (1.2 kg-m, 9 ft-Ib)
With the transmission in neutral, check the arm assembly
for operation.
Install the following:
m drive chain guide.
o oil pump sprocket, drive chain, and primary driven gear
boss as an assembly.
NOTE
e Install the sprocket with the "OUT" mark facing out.

Temporarily install the clutch outer and clutch outer

holder so that the oil pump sprocket cannot be rotated.
Tool:
Clutch outer holder
07JMB-MN50100
Apply locking agent to the sprocket bolt threads. Install
and tighten the washer and bolt, holding the clutch outer.
Torque: 13 N-m (1.3 kg~m, 13 ft-Ib)
" primary driven gear (see page 10-24).
e starter clutch.

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 StarterlReverse
Reverse System (A & SE Models) (cont'd) - - - - - - - - - - - -

Reverse Shift System Installation

Install the dowel pins.
Install the starter drive gear holder.

Install and tighten the starter drive gear holder bolts

securely.
Apply molybdenum disulfide oil to the stopper shaft.

Apply oil to the needle bearings.

Apply molybdenum disulfide oil to the shift gear teeth and
reverse shifter holes/and groove.
Install the washer, needle bearings, reverse shift gear,
and washer onto the reverse shifter.
Install the snap ring with its chamfered surface facing
inside.

SHIFT
GEAR
SNAP RING

Check the shift gear for rotation.

SHIFT
Apply molybdenum disulfide oil to the shifter shaft. GEAR
ASSEMBLY
Install the shift gear assembly onto the shifter shaft.

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 Apply grease to the roller pin.
Install the roller pin into the shifter holes and shaft hole as
shown.
Install the reverse sl'lifter shaft assembly; simultaneously
aligning the shifter groove with the stopper shaft while
aligning the shaft cut-outs with the shift drum locI< arm
boss.

Install the reverse idle gear with its flat surface facing
inside.

Install the washer.

Install the starter idle gear and shaft.

Install the rear case cover (see page 8-33).

Install the washer.
Apply molybdenum disulfide oil to the needle bearing.
Install the needle bearing to the shifter shaft.

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 Starter/Reverse
Reverse System (A & SE Models) ( c o n t ' d ) - - - - - - - - - - -
Apply oil to the O-ring and install it to the collar securely
as shown.
Apply molybdenum disulfide grease (approximately
1.0 g/0.04 oz.) to the inner and outer surfaces of the
bushing. Install the collar bushing.

(MO£2)

'"'~
BUSHING

Install the spring, hooking it onto the tab of the output

shaft bearing holder as shown.
Install the plate.
Install the shift arm, spring and spring collar to the shifter
shaft as shown.

@ Make sure the locations of the spring hooks, shift arm

tabs, and plate tab are as shown.
---_._--

Apply a locking agent to the threads of the reverse shifter

shaft bolt and shift arm bolt.
Install the washer and reverse shifter shaft bolt. Tighten
the bolt to the specified torque.
Torque: 14 N-m (1.4 kg-m, 10 n-Ib)
Apply oil to the reverse shift collar.
Install the shift collar and shift arm bolt.
Install the rubber protector.
Apply molybdenum disulfide grease (approximately
0.5 glO.02 oz.) to the shift arm joints (2 pies.)
Check the shift arm for operation.

18-38
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 Reverse Control Unit (A & SE Models)
System Inspection
Remove the seat (see page 13-8) and trunk (see page
13-14).
Disconnect the 14P-WHT connector of the reverse
control unit and check it for loose contacts or corroded
terminals.
Using the chart on the next page, measure the indicated
connector terminals on the wire harness side.

REVERSE CONTROL UNIT CONNEcroR OF THE

WIRE HARNESS SIDE

13 & 8 1 12 3
10 1 9 11 2 14

18.. 39
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 StarterlReverse
Reverse Control Unit (A & SE Models) (cont'd) --~ ~~--~--
..
TERMINAL NUMBERIITEM TERMINALS CONDITIONS SPECIFICATION
Ground wire G RN and ground - Continuity should exist.
f - - - - ; - - . ------_+'" ,.., - - F-..... ~

2 Speed limiter relay GRY (+) and ground (-) Ignition switch ON Battery voltage should
wire Reverse lever switch ON register
.. .. _--_ nnm _ _ , ..
-~--_.~-

3 Reverse lever wire W HT/BLU (+) and Ignition switch ON Battery voltage should
g round(-) Reverse lever switch register
n_'_ _ _ _..
. - ""'""',,--,,,,, ,,==~ ....""" ........'" .-
4 Reverse indicator wire W HT/RED Short it to ground and turn Reverse indicator should
the ignition switch ON come on
."", ...... ''''''''

5 Oil pressure wire BLUEIRED (+) and Ignition switch ON o V should register
g round (-) """"

Disconnect the oil pressure Battery voltage should

switch terminal and turn register
the ignition switch ON
..- " "
6 Power control relay a RN (+) and ground (-) Ignition switch ON Battery voltage should
1 wire Reverse lever switch ON register
.. --- r-----" ..
7 Starter relay LT BLU and LT BLU of the Disconnect the starter relay Continuity should exist
regulator wire unit and regulator regulator 4P-RED connector
(page 18-42) and check for
continuity between the same
color wire terminals
_ _,=,,_>U'"
--
"
~
8 Neutral switch LT GRN/RED and Transmission in neutral Continuity should exist
ground
.... ,,-_.. ~
... __ ....
9 Power control relay WHT (+) and ground H Ignition switch ON Battery voltage should
2 wire Reverse lever switch ON register
"=,, "'--'" ...., - -
10 Side stand switch GRN/WHT and ground Side stand up Continuity should exist
m"'_ _..... ,.
wire """"

Side stand down No continuity exists

.- ......-
11 Starter/reverse YEURED (+) and Ignition switch ON Battery voltage should
switch wire ground (-) Starter/reverse switch pushed register
,----_. .. ,

12 Speed limiter fuse YEL and ground - Continuity should exist

wire
""''' ....
13 Motor wire PNK and motor cable - Continuity should exist
..
,

14 Reverse relay switch YEURED (+) and Ignition switch ON Battery voltage should
wire ground (-) Reverse lever switch OFF register
1--....- ,...._ - ... r-----..- ....- -..
Ignition switch ON o V should register
.. _
... ..,,, Reverse lever switch ON
..,
"""-,=,,,,,~=,=,=-

18-40
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 Speed Limiter Relay Line Inspection
ENGINE
Start the engine. CONTROL
TO REVERSE UNIT
Remove the speed limiter fuse (65 A). Disconnect the motor
LEVER SWITCH
cable from the starterlreverse motor (see page 18-13).
Connect the voltmeter between the speed limiter fuse termi-
nals (tester (+) probe to the fuse VEL terminal). ~~Ril-
-W"":~: T~lK
Connect the battery charger positive (+) cable to the motor
(+) cable. WHT~ YEl~ ---,

With the reverse conditions ready (gear in neutral, side L__

SPEED Y~EL~
~
stand up, engine running, and reverse lever switch ON), be LIMITER ~ @

sure the charger switch is ON and apply 13-20 V between FUSE ~+ e V

the motor cable and engine ground. A reading of 13-20 V
should appear between the speed limiter fuse terminals.

_ _ _c.............' _
REVERSE
RESISTOR
ASSEMBLY
Sid··
STARTER RELAY

~
VOLTMETER

o Tum power ON/OFF at the charger, not at the

battery terminals, to prevent sparks. BlK PNK _.-<J\..J>- PN KlWHT
--_.--_.._------------- $
-=-
=
Q)
-=-
G While applying the power to the line from a charger,
do not depress the starter/reverse switch. BATTERY CHARGER

Starter Relay Regulator (A & SE Models)

Wiring Inspection
Remove the seat (see page 13-8) and trunk (see page
13-14).
Disconnect the 4P-RED connector of the starter relay regu-
lator and check it for loose contact or corroded terminals.
Measure the following connector terminals on the wire
harness side.

.
~~"'~--"" ~-_ .
ITEM TERMINALS CONDITiON(S) SPECIFICATiON
Battery voltage line WHT/BLU (+) and ground H Ignition switch in ON. Battery voltage should
Reverse lever switch in ON. register.
,->.""--=,,,,,, "
s tarter relay switch A BRN/RED of the regulator and Disconnect the 4P-RED con- Continuity should exist at
p rimary coil line starter relay switch A nector of starter relay switch A all times.
(see page 18-27) and check
for continuity between the
BRN/RED wire terminals.
"'",-"''''''''''

Reverse control unit line LT BLU of the regulator and Disconnect the 14P-WHT Continuity should exist at
reverse control unit connector of the reverse con- all times.
trol unit (see page 18-40) and
check for continuity between
the LT BLU wire terminals.
.- "''''''''

Reverse fuse wire GRN and ground At all times. Continuity should exist., , -
~.

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 StarterlReverse
Starter Relay Regulator (A &: SE Models) (cent'd)

Regulated Voltage Inspection

Turn the ignition switch ON and the engine stop switch to
the RUN position. Start the engine, raise the side stand,
and put the reverse lever in the ON position.
?l
~\
With the 4P-RED connector connected, set the tester
probes to LT BLU (+) and GRN (-) wire terminals.
/'

There should be 0-1.0 V when the starter/reverse switch

is pushed.

Turn the ignition switch ON and the engine stop switch to

the RUN position. Start the engine, raise the side stand,
and put the reverse lever in the ON position.
With the 4P-RED connector connected, set the tester
probes to BRN/RED (+) and GRN (-) wire terminals.
When the starter/reverse switch is pushed, the voltage
should be approximately 0 V for the first 0.3 seconds;
then a minimum of 4.0 V should register.

Reverse Resistor Assembly (A &: SE Models)

Removal
Remove the battery case (see page 17-7). Disconnect
the 3P-BRN connector.
Remov<3 the starter/reverse motor cable from the resistor
terminal.
Remove the exhaust chamber (see page 7-33). Remove
the heat protector.
Remove the four mounting bolts and the reverse resistor
assembly.

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 Inspection
Measure the resistances between the connector termi-
nals and resistor terminal.
Standards (20°C/68°F)
BLK wire terminal- resistor terminal: 0.12-0.17 ohm
WHT wire terminal - resistor terminal: 0.12-0.17 ohm
RED wire terminal - resistor terminal: 0.12-Q.17 ohm

Installation
Install the reverse resistor assembly in the reverse order
of removal.

RESISTOR TERMINAL

Power Control Relay (A & SE Models)

Operation Inspection POWER CONTROL RELAY 1
Remove the right rear side cover (see page 13-8) and
trunk (see page 13-14).
Disconnect the 14P-WHT connector from the reverse
control unit.

Relay 1
Connect the ORN wire to the GRN wire with a jump wire
(wire harness side).
Turn the ignition switch ON and position the reverse lever
in the ON position.
The relay is normal if it clicks.
POWER CONTROL RELAY 2

Relay:2
Connect the WHT wire to the GRN wire with a jump wire
(wire harness side).
Turn the ignition switch ON and position the reverse lever
in the ON position.
The relay is normal if it clicks.

Continuity Inspection
Remove the power control relay and its rubber protector
from the rear fender.
Disconnect the 5P-WHT connector and remove the
power control relay.
Connect an ohmmeter and 12 V battery to the power con- 12 V BATTERY
trol relay as shown.
The relay is normal if there is continuity.

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 StarterlReverse
Speed Limiter Relay (A & SE Models)
Operation inspection SPEED LIMITER RELAY
Remove the right rear side cover (see page 13-8) and
trunk (see page 13-14).
Disconnect the 14P-WHT connector from the reverse
control unit and connect the GRY wire to the GRN wire
with a jump wire (wire harness side).
Turn the ignition switch ON and position the reverse lever
in the ON position.
The relay is normal if it clicks.

Continuity Inspection
Remove the speed limiter relay and its protector rubber
from the rear fender.
Disconnect the 5P-WHT connector and remove the
speed limiter relay.
Connect an ohmmeter and 12 V battery to the speed
limiter relay, as shown. The relay is normal if there is
continuity.

Reverse Lever Switch (A & SE Models)

Inspection
-----,
Remove the left fairing inner cover (see page 13-12).
0:
Disconnect the 3P-RED connector from the connector
holder behind the cruise control valve unit. o
U
~ 3P-RED
~ CONNECTOR

~
_ _ "" ... "" oJ

Check for continuity between each terminal as follows:

Item Terminal
" _ _0'
Specification
The switch is BLKJWHT and BRNIWHT No continuity
='"''''''
pushed. WHTIBLU and BRNIWHT Continuity
The switch is BLKlWHT and BRNIWHT Continuity
released. WHT/BLU and BRNIWHT No continuity

Replacement
Remove the screw and remove the switch from the
frame.
Install it in the reverse order of removal.

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 Service Information (I Model)
m The starter motor can be serviced without removing the engine from the frame. To service the starter clutch, the
engine must be removed from the frame, see section 6.
.. When inspecting the starter system, check the system components and wiring step-by-step according to the
troubleshooting chart.
.. For the starter clutch servicing, see page 18-22.
.. For the fuel pump shut-off (bank angle) sensor inspection, see page 18-25.
.. For starter relay switch inspection, see page 18-26.
.. For the relay box inspection, see page 18-27.
.. For the starter switch inspection, see page 18-29.
.. For the clutch switch inspection, see page 18-30.

System Location

\/
IGNITION SWITCH

STARTER MOTOR

GEARSHIFT SENSOR

BANI{ ANGLE SENSOR

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 .....L (') Wen
~
I a ~ or
~
~ ::::s: _. ::I.
m Ki>NlTION SWlTCH
~RElA'i BOX~

RELAY 3 RELAY 6 FUSE 12

r----FUSE BOX
FUSE 8
-,
FUSE II c n CD
~---"lI
I IA
I!"'---" ,--- ...
I 0 I~A B liSA i 00' CD ~
'lnflJ cc
3"53
DIODES

~~ " I
""\!
@)

~ ~ ~ 3 OCD
INSTRUMENT
6

I I I
c S ~

i
, 3"" CD
<
I ~E~T=--:iD~ -5;:-11
II
! ~~
INDICATOR INDICATOR
o CD
-s:
12'1341# 12V 3 4W
::s
LQjiJ I """'"

H §~ RELAY BOX 0
~
RELAY ttl QRCl,NT Q.

--
IIA 3 TAIL (""NI

~ II! ,-
IIA
S,
6 ION
!!.
.~ ~ ~
~

--
" iii ( ')

~~(J"WHT) 0
:J
ci:
a":} ~ ,ii
i

Il
~ (I~·~T)
>L:~
L.8RN/YIHTK~_·HT "AN' 'NGLE
LLT'GRM/REO~LH;'RN/REO i ~SENSOR

'f(L1BlK~~YELl81J( ~P
W
J
I ~" li
@13P.R.1
~"~
(IiP·GRY)

CLUTCH
(IP~.BL'J
lIMn,
r- GRHIRfO !
'i
r To: Allarn~lor ~ co
~ k1i~ (llP.YEL) I~ $ -,

~
JC
SWITCH

I toP.REOlm STARTERRELAV

1--1::t:::~=W-_'HJ-----J q~
~'(Dln J! GEA~
I
! jMAIN
.S..TC"

::ill::=ill
~
FUSE
(W·GRN) I~ i
8 ~~A
~U
SENSOR -=-

~~~ l·~
li
SlOE STA~
SWITCH

GROUND POINT i "'-, .... ...,..

~~~
BLACK
A ~Ql'I ROOilltor. Ntlir ThtflllOSI!tlt FIn Motor S\IIilch 'fEllOW OllAHGE
YEL
"'"
B iOn EnclN, Near
C fOn
Coot~l

Engine."klll Dipstick
Temperatllfe SwItch
...
ilLU "'-Ul:
GREEN
RED
lHl.U
LT-G.Afj
llGHTBlUE
LIGHT GREEN
RED
"""
PHI(
D eOn Frame, Upper o;pstick
A II D D C 'HT ll/fflTE GIl' GIl"

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 Troubleshooting (I Model)
The st~rter motor does not tum,
NOTE
Inspect the following before troubleshooting the starter system:
e Be sure the battery is fully charged and in good condition.
@ Be sure the following fuses are good: main fuse A (30A) - inside starter relay switch A; 11 (15A) - inside the fuse
box;
<> Be sure the fuel pump shut-off (bank angle) sensor is installed properly (see page 18-25).

,..........................." =

Bad
BAllERY CONNECTiONS: Check battery ter-
cormecticm
minal connections for corrosion and looseness. @ Loose or corrosive contact of terminals.
Check the cable for open or short circuit.
• Open or short circuit in battery cables.

""
~ Good connection

STARTER RELAY SWiTCH CONNECTIONS:

Check starter relay switch terminal connections for Bad
corrosion and looseness. Check the relay switch connection
s Loose or corrosive contact of terminals.
4P-RED connector for loose or poor contact.
• Loose or poor contact of the relay switch
~ Good connection connector.

STARTER MOTOR CONNECTiON: Check starter Bad

motor terminal connection for corrosion and loose- connection
ness and check the cable for open circuit. s Loose or corrosive contact of terminal.

I Open circuit in motor cable.

,.,':",:" ,............"00<
<>

Good connection
"",,,,,,,,,.,.':',,,:':':':':,'=""-

GROUND CABLE CONNECTION: Check the Bad

ground cable connections near the dipstick for connection
corrosion and looseness and check the cables <>Loose or corrosive contact of cables.
for open or short circuit. • Open or short in ground cables.

,.""'-""""",,,:',:,'"
~ Good connection

MOTOR: Apply battery voltage to the starter Motor

doesn't tum
positive cable terminal and check its operation. s Faulty starter motor (see page 18-49).
,:,':"

~ Motor turns

STARTER RELAY SWITCH: With the ignition Click STARTER RELAY SWITCH: Check starter
switch ON, push the starter switch. You should relay switch for continuity (see page 18-26).
hear the starter relay switch click (see page 18-26).
~ No continuity

~ No click @ Faulty starter relay switch.

WIRING/CONNECTIONS: Disconnect the Yes WIRING/CONNECTIONS: Check the conti-

4P-RED connector from the starter relay switch A nuity between the BRN/RED wire and ground.
and measure the voltage between the YEURED There should be continuity with the transmis-
wire (+) on the wire harness side and ground (-). sion in neutral or with the clutch lever
Battery voltage should register with the ignition squeezed and the side stand retracted.
switch ON and the starter switch pushed in.
No
No

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 Starter/Reverse
Troubleshooting (I Model) (cont'd)

@
cp
Faulty diodes (see page 18-51).
@ Faulty gearshift sensor (see page 16-13).
., Faulty clutch switch (see page 18-30).
@ Faulty side stand switch (see page 16-14).
@ Loose or poor contact of 6P-BLK, 9P-BLK,
6P-GRN and/or 3P-GRN connectors.
@ Open or short circuit in the wire harness.

RELAY 6: When the ignition switch is turned WIRINGIIGNITION SWITCH: Disconnect the
ON, you should hear relay 6 click (see page No click 3P-GRN connector on the right side of the
18-27). rear fender. Measure the voltage between the
WHT (+) and GRN H and between the
RED/WHT (+) and GRN (-). Battery voltage
Click
should register with the ignition switch ON.

No Yes
o Loose or poor contact of 22P-YEL connector or
8P-BLK connector above the left cooling fan.
e Open or short circuit in main or sub wire
harness.
o Faulty ignition switch (see page 19-20).

FUEL PUMP SHUT-OFF (BANK ANGLE)

SENSOR: Inspect the bank angle sensor (see
page 18-25).

No Good Good

o Faulty bank angle ., Loose or poor contact

No sensor. of 3P-GRN connector.
RELAY 6: Check relay 6 for continuity (see
continuity
page 18-27). o Faulty relay 6.

WIRING/CONNECTOR: Measure the voltage No

between BLKlLT GRN (+) wire of the 9P-RED ..-~-,,---. 0 Open or short circuit in the wire harness.
connector on the right cooling fan and ground
(-). Battery voltage should register with the
ignition switch ON.

STARTER SWITCH: Check the starter switch No Good

for continuity (see page 18-29). !> ., Faulty starter switch.

@
"--r Good -
Loose or poor contact of 9P-RED connector.
Smrter motor tums engine slowly. Starter motor turns, but engine does not tum.
., Low battery. ., Faulty starter clutch (see page 18-22).
@ Excessive resistance in circuit. 0 Faulty starter drive/or driven gear.
o Faulty starter motor (see page 18-49). @ Faulty starter idle gear.

Starter motor and engine tum, but engine does not start.
o Faulty ignition system.
o Engine problems, see engine related sections.

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 Starter Motor (I Model)
Removal
Remove the following:
@ right front side cover (see page 13-8).
" battery and battery case (see page 17-7).
Remove the wire harness from the wire clamps.
Disconnect the starter motor cable from the motor.
Remove the motor mounting bolts and the motor from the
engine.
NOTE
" For starter motor disassembly, see page 18-13.

STARTER MOTOR

Reduction Gear Case Disassemblyllnspection

Remove the gear holder.
Remove the starter reduction gears.
Remove the dowel pin.

Check the starter reduction gears for excessive or abnor- STARTER

mal water. REDUCTION GEARS

Check the planetary gear needle bearings for damage or

excessive wear.

-
NEEDLE BEARINGS

Turn the starter shaft and check the bearing condition.

The bearing should turn smoothly and quietly.
Replace the reduction gear case assembly if the bearings
do not turn smoothly and quietly.

18-49
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 StarterlReverse
Starter Motor (I Model) (cont'cl)

REDUCTION GEAR
CASE ASSEMBLY

Install the dowel pin into the gear case.

Apply grease to the gear teeth.
Install the sun gear, aligning the gear groove with the
dowel pin.
Install the planetary gears onto the shaft.

Install the gear holder, aligning the holder groove with the
dowel pin.
NOTE
@ For motor assembly, see page 18-19.

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 Apply oil to the O-ring and install the starter motor onto
the engine.
Install the starter motor mounting bolts and tighten them.

NOTE
.. Two of the mounting bolts are dowel bolts. Install
them as shown.

Connect the starter motor cable to the terminal. Install the

wire harness onto the wire clamps.
Install the following:
.. battery case and battery (see page 17-8).
.. right front side cover (see page 13-8).

Diode (I Model)
Remove the right fairing inner cover (see page 13-12).
Remove the diode from the main wire harness.
Check the diode for continuity.

NOTE
.. This test chart is for a positive ground ohm meter. The
test results will be reversed if a negative ground ohm
meter is used.

Normal direction: Continuity

+ probe: (+) terminal
- probe: H terminal

Reverse direction: No continuity CLUTCH DIODE

+ probe: H terminal
- probe: (+) terminal

18..51
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 StarterlReverse
Starter Drive Gear (I Model) (cont'd)

Remove the rear case cover (see page 8-7).

Remove the starter idle gear and shaft.
Remove the bolts and starter drive gear holder.
Remove the dowel pins.

Turn the drive gear and check the bearing condition. The
bearing should turn smoothly and quietly.
Also check that the outer race of the bearing fits tightly in
the holder.
Replace the bearing, if necessary (see page 18-33).

Install the dowel pins.

Install the starter drive gear holder.

Install and tighten the starter drive gear holder bolts

securely.
Install the starter idle gear and shaft.
Install the rear case cover (see page 8-33).

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 LightslSwitchesllnstruments
Service Information 19~2
Troubleshooting 19~5
Headlight/Position
lights 19~12
Turn Signals/Brake
light "... 19~13
licenselAccessory
light ." "...... 19-15
Instruments 19=16
Ignition Switch 19..20
left Handlebar
Switches . . . . . . . . . . . .. 19~22
Brake light Switches ... 19~23
Oil Pressure Switch. . . .. 19-23
Relay Box: . . . . . . . . . . . . .. 19-24
Parking Diode 19..24
Self Cancelling
Turn Signal System ... 19-25
Hazard Relay . . . . . . . . . .. 19~28
Horn " " .. 19..28
High Mount Accessory
light (SE) " " 19-29
Cornering light (SE) ."." 19-30

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 LightslSwitchesllnstruments
Service Information
@ All plastic connectors have locking tabs that must be released before disconnecting, and must be aligned when
reconnecting.
@ To isolate an electrical failure, check the continuity of the electrical path through the part. A continuity check can
usually be made without removing the part from the motorcycle. Simply disconnect the wires and connect a
continuity tester or volt-ohmmeter to the terminals or connections.
@ A continuity tester is useful when checking to find out whether or not there is an electrical connection between the
two points. An ohmmeter is needed to measure the resistance of a circuit, as when there is specific coil resistance
involved, or when checking for high resistance by corroded connections.
@ For the following switches, see the indicated section:
- Intake air temperature sensor (Section 4)
- Coolant temperature sensor (Section 5)
- Thermostatic fan motor switch (Section 5)
- Air pressure switch (Section 12)
- Side stand switch (Section 16)
- Engine coolant temperature sensor (Section 16)
- Engine stop switch (Section 16)
_.. Gear position switch (Section 16)
- Reverse switch (Section 18)
- Starter/reverse switch (Section 18)
- Clutch switch (Section 18)
- Reverse lever switch (Section 18)
- Muting/search switch (Section 20)
- Cruise cancel switches (Section 4)
- Cruise control switches (Section 4)

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 D
Circuit Diagram:
A Model

LCD UNIT

I [ "."'",.... ,....., 4 GROUNO 2

hll.m"-,"~~iUI
-'~rlllif' ::=..~
RIGHT CORNERING LIGHT ,RELAYl
:OPTtON; ,~
r-- iGtfT1ONSWf"CH
~(Ho)
:~'

~ R~ I~
r---- iNDICATOR I ...... -

l~ (~~ • I
, 4
--
5
'Cl'£l.--
-- - , jCi
.I,,",,",':'~ ,~ UNT UUMINATION IMWX
I UI~I
2 -;;
.1 ! .. ~ ·I~·
.
I, !I
.-
:MW
~ H...
U
LCDUNT .' I E'NDICATOR UGHTS
~ ~
f
F"USE BOX RELAY BOX
!il.' _'/ IT ,MW
• ," 1_ .......,"",
ill't _' \'---1 r ' F"USE No CIRCUIT RELAY No CIRCUIT

.'~~ ~ i·, """"'" ""'''''

' ,:
''''1.1> I ACC TERMINAL 5A I HORN;Tl.'lN
-LLL T _ I 2 HORN Tl.'lN :5A 2 STOPLIGHTS

J~ I ~
,1: _ - - _ ..... ' 12'1.1> 3 STOP
--... _ lOCATOR I' Ie NEUTRAL iNDICATOR 12V3,4W i HEADLIGHTS
ISA
15A
3 TAIl. (MAlNI
4 HEAOUGHT (Ho;

I 'M" 7 PAAKING IDA ; POSITiON

": ....-",: ........."""
lM4WX2 , .u.-- ' • """"""'''''
,~IF
8 TAIL ILLUMI. 15 A 8 HEAOUGHT (Loi

Ifil,.:., q ,
E STANO INDICATOR f2V3

::~"
I 1M 4WX2
,..... , TACHOMETEg
I I SlOE ' l 1lEVEJlSE, START 5A
SENSOR I "
' I ~~ I Ie l.OW INDICATOR 12V3,4W.4W FUEl. 10 ACC iDA

L]'.
' i :

~~
ii,i I i '1'1' ,OL """'" - - 'M." 111111.... II 1 III 1 11+ II I II I 1-- I -- ----'
!1 I£AO RELAY
13 BACK-uP
SA
5A

.....~ ILi 12VU~W

, . OW
Ii T
!i
L~~H+f;;:==:::lI----- ~
,hi
MODULE

~ ~~fj::=::_
"'''"11' T.RUNK
~! I
jUCIlUISESETINOICATOR

,_ _
LIGHT@REARBRAKE

::*~,
tr.rfl
I(J)

'I' A. C D) ;; --- INOICATOR 12Vl7w '...--L.!.,

,/PollED; 'OPTION) ,/P-8lK; .. LIGHT SWITCH
I' 1111,1
.~-Lt'l~~ ,,'.:::::.~
~~ &~I
ICIlUISEON I _
I I L :i' '-'.lfM
.- - [I4P-LK)

- I.
"
ll~ l!.! 1~lii~
;tt •• ttfr ' ~ ~;~-
II I-::::::::::::-,r_~ ~~ ~~:i:~REVERSE
IL' ,"'" .J " • I."
It _ h.l ·~ j :I l j "Lj-'..... IF;=-~
I
_i ~GoWo"'~~ ........ ....... OIOOE ASSY

-'I~~ ~=-
~I!I~ I .~
L "

III' ',L:=-
. . .- m
PAAKING OIOOE
-l
L - , - :b.ill.=-.:::J= i

- -...
'3P.WHTl

. .:~~RIGHTBRAKE ANO TAIlUGHT

:/P.WHT'

Will
=::::.J .......---·-,~~IM2·2tP(27'7W)

~(nw)~;,:-~·~·-
RIGHT FRONT TUAfiI SIGNAL. L To: Fuel' - - -....
'
RIGHT FRONT
~CG"F-
LJGIoI.T~ s.st... LTo:Ao.to CtuGe Svsltm
~ l~ ~,I L ~:I 1//1"1 I ••+r------..,·....~(OPTION)
- ..,----r;> RIGHT R£AR SlOE MARl(ER LIGHT

~: I_J1L-~.~ ~
'...,,, .... ,,:;;;;-::: _ ......_ . ,
t: I I I U II I "/'

~__ L~'.'_'~'_ ~ ~- ~ ~~~

r:r~'"_~ ,b~- ,~ ~7'"

..,:::o:J:cp':::TUAfilSIGNAl.

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~1[J' ,...~__J ~",-' , I ~ r~l: : : !J
.., rt.! ' - - I ~ :iP-R£D)
....
~_"'--r-T"\ IlIW<E AND TAILLIGHT
:::::::L...l... 1ZV32.'1tp(17·7Wl
,"._,.~
-,-~"~:,--~,;::.::::J. .J~' II
l., _",_ -ur:;;.':'"WHT' I
_ In
- " • , -

,.~.:-
-----l - ='--b
.",,_b
,

~S""'.
<L. _ ...
I
,...~-' ':~.~-
[:0:"'- - ,'-- ... ' - , :,,-, 11 UCENSE LIGHT
I
.==::t:._
"",,"~ _~
IMtp(SW)
I rll I /P.aAN)

-=.~
Izvcnsw - I nu I I
HEADl.:GHT '1 -WHT) -
t"L
,
..-:....
. -
---......--0) ACCESSORY LIGHT

~ -~
f/. ... I -

-- 'I :mE
c-=,tlJ , u...,'1'lV3W~1

~
"1. .
1_ L--"'=-
~
LTD" ""_ - ::, -
-.. . ., - =~ I II
~-, ~~
BRAKE ANO TAIlUGHT
.. I I - "..;:;;-- - -,
""""",..,.., ''''..\.....'::::J....---' 11,1
__ I I_ - -~
1ZV32l1tp(17.'7W1
r- L'" I =.--[1-.._
- - - : 1 - - ,,- -

~_~'lP-8LK1u~ ~ -.:- ~
I _ .J , ..

!rl::~ ~.-
~=- ~ -~. --~:::t:D
I

(~~ i1-~ ~"#tt#: 'L., ~~ , _.. ~~R£AR

",.,,"'" , """"",..,..,
'''''''"''' _ " _r "- _-:::l -. -
LEFT i'RONT ;URN SIGNAL I 1 -.:: --
_ .... un .... -
''''''''0''
...,

~' ~_~,.~~ t::::--""'~

",,,,,,,
un _ I '
I -- t::;;:;:-- 1
"'--1'1'1
~~, ~'M""121!~:
J 'j J ><.Ii 1Pi. 1_ I , "-- L., -
SlOE IAARKEIl UGHT.
-=- 'I :,,!;' I I
[Z2I'·WHTI SlOE MARKER LIGHT

. _I I I _;£:=::tlJ:=:"".::::1"""i\ LEFT BRAKE AND TAILLIGHT

/~I
I . III
.u--
"...,
_ ··r'· ';.r-'
...". Ii,II'.
__'" I I tIl - II r "'.....,
" '
..'

M
~. nlllJllli ~_.
,r, F ij:i 'i;~j~'i illI~ !"A~"'l~I ilL
.~ ~~, ~~~'~.:... ,...:,l~·
_ < z. -I i

~. ~ ~'l I~-' l"I!~.~k-.:_':'~......,

:-.:.~TUAfilSlGNALRELAY
I r _ I '
.. I d . , " "'-"
, - _ __
Ii 1 II _j.i r;;la •. !i if
-, ill
.. I !
n:=:;- 0
II! I
l! IL

~. ~ ~ ~ ~ [~~~ ~=fTI
J f!H I I !:.IIHT;

W
,;'" _,
'TTTT',."",
Ii l! - ,r===-'!
II ++-""', n ,11
-
Tn TTi' ,.....,
I!! -
• 'ri'
I I iliille II-:.m:11
-;a ....,

~, _ ~ II
1,

;1 -i "'"~"~ -,...."'"'~""''''
,,::,:,,.
LEFT CORNERING LIGHTiRELAY' ,• • ""
" 1 .,. S i ,j
fch
f-[
0 •
..... ..... ,......:
",-"

5J' -so
'"'" 8::RI ""'" "". """-1
1

-=-

.."~ - -....
. Or Rad,.tor
L GROUND POINT

E.~'"
no" _ .0<""" "''''' """ m , .. -

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.... ....
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, "'., ! , " , - _7 . u ..,
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,"" SO,," ,,,",,-"":..-
""'" ""'" """ ::.. ......
L "HT WHITE GIlY GIlAY
STARTER REVERSE SIIITCk
TURN SIGNAL SlIITCH

19-3A

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 D
Circuit Diagram:
SE Model ACe ~E~NAl. r:i r:l
r~ ':' ILJLJ
'[, J'

A 1IliH_IfClICATllA l2Vf.7W F LOW FL£l. INllICATOIl fZV3 4W

i c:::i:J I
• 0llUIlIM: INIlICATllA ltv! .7W G 01. PIlESSUIlE WUlNING IZV3. 4W
f:l r;l
C Il£IInW. IfClICATllA 1M 4W H CIlUSE SET INIlICATOIl 12V! 7W
,~-jd L:..J LJ .
D IlE'IERSEIfClICATllA 12V3.4W
f 5IIE STAND INIlICATllA
I CIlUSE ON INllICATOIl f2VI.7W

~ -- ~x
\ w:J
I~
r-;-;
~L:..J
r;l

lij::
JZV34W RIGHT CORNERING UGHT- CORNERING LIGHT llELAY IlELAY -- FUSE BOX_-_-- - - - - ,
I~II
HORN(Ho; (RIGHT) (LEFT) IGNTION SWITCH I1 2 .I 4 7 • 12 uli 1 2 3 5 7 • t 10 I ~ ~,c:iC
~~ -----rLCOlHT~ 0
Ti (0~. i ~~~~~~~~rn~~~rrf~r;;J[~
C:C' 6'

~~[lj~l-l*&:2:::::~=~;=1l
~:
Ifr= I

:=;
I SPEED SENSOR

d "~ , rrrr~
i' ~tjfl;~ ~i~ ~ Ii~iO-O
0-0
~~L nn i j Un nn nfl t ! Ii i; J,!i',t I iIiI ~ ; iIi' i ! ; i
1 ..... !:::.~..!:.~
FUSE BOX RELAY BOX

l i i o~ r71
A
181i Ii , Ii i ~ Ii ~ iii f ~? I I ~ i ~ ~ !
i' i
FUSE No CIIlCUIT FlEUY No ClllCUlT

5 IGNTION + (lP-WHTJ# U I: I ACC TEF/MINAl. SA I HORNTUFlN

~I ~ I r8
11 SPEED PULSE _ 2 HORN TUFlN ISA 2 STOPLIGHTS
I::; I II II I I I; 3 STOI' ISA 3 TAIl. (!WH,
II BACK-uP 8; I ,.. J I
(1tI'.Y£L)
~
~ '::;
T
I
S HEADLIGHTS
7 IWlKING
tSA
IGA
4 ~AOUGHT (~,
; POSITION

~[_JlI!ll
I TAIL ILLUIIII ISA B I£AOUGHT CLoD

J II!!
9 REVERSE 'STAllT SA

~-=- _, 10 ACC IDA

L"l 1 12 I£AI) FlELAY 5A

~II un
-
I 13 BACK-lJI" SA
• GRouNo POINT
J; =
'"~
·On Fr_.lJDDer

~*
lloDsbek
~ ...~~~ Iiij~=~
(lP-llED)

rrJ
J ~ ;::::=::=::::=:::=:[F:~:;::!J :lP.fILK)m~ ;IJP.IlHT;
"~~~REVEFlSE
: ~.~ ::=::t1:!2.J DIOOE ASSY

I . :'~ ~1lK1NG 0I0llE

i (JP.wHT :lP.llHT:
!
"':',~FlIGHT BRAKE AND T~
u:===::::::[.t=.,..~IM2 2<::27 1W

1!J~=====::"';.::::::f::t ~REAR SlOE ~~

RlGHTFRONT~=- '-r-c:~:.. ~
MAllKEIi

RIGHT FRONT POSITION LIGHT ~.., ••:

~
...~,RlGHTFlEAIlTURN$IGNA..
f2V3ccllW, ,3P.IlHT; ...
.... :
~~ i"..--L..J....-J
IM2CQ~23Wt
RlGHTFRONT~~UGHT~-
:lP-GRH ---:'~._. ~·~~9RAK£ AND T4

-
IOPTION
1M2 2:::27 1W

~
• §.. . ~'1111
~

POSlT1ON UGHT ( _t.,\I_.r.

12lP-llED: e.. .

I
, .,:!'~ lEG _! . . " ...""" -a - L.. , ~=IJ~-·'~
III ~""~I2V3cc(Sfl
(lP.-)
LICENSE LIGH'"

~11!!I!llljill!~l:!i_t:~~~~'~~=f~llli~ ~~~
HEAIllGiT 12V4S 4511 I ,.......J I

~i i
\2
, ACCESSOIlY L.JG>r

-I

:3P«.K:
-' , ..... ...,
EFT FRONT TURN SIGNAl. -, j
1M2<p(23W.
EFT FRONT POSITJON LIGHT
l2V3ccllW'
([EF~.-J I : ; Is.: J ::;
LEFT FRONT SlOE MARKER LIGHT LJ:::;:"'--
iPJ~1 i
(OPTION; :lP-GRH:

I . l:'IlHT)

(lP«.K)

~ 'J~:::;~
H~TI -
8
~ ,M
~ ~ ~
.. 1/. i~li~i - -
~=us="~~,_j~:s~~~~~rH
~
~""'" .....
,:D£E L: 0-0 --
__• w ...".. - - ,---
~fr6~N

....,,--
12V2SW "-.../ ,1, .USNSWITCH
HORN =
OMIER SWITCH Q

HOIIN(Lo
L ILL~
LEFT HANOLEBA RSWITCH
<-
"SN:, L
•
-
L GIlOUNO POINT
"""" ""-"
00' ~E"f"',N."
':'~~"'Ne" IILK
Y£L
IlLAC-
Y£LLOO
....
0IlN
8IIl)IrN
0IlANli[
I

--
TURN SiGNAL SWlTC~ OIL I"RESSUFlE SWlTCH- BLu IILUE LHILU LIGHTIILUE
.... TURN SiGNAL CANCEL CONTROL UMT
GAN GIlEDo LHillN LlGHTGIlEDI
!lED !lED
IItn'( G/IY GRAY

goldwingdocs.com 19-38

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 D
Circuit Diagram:
A Model

~"m
~
cz:J
CD ~e.
r-- - - -- -- -=:-:-:~---- CD
Rt<#lT CORNERING LIGHT (RELAY)
(OPTION) 'GNITION SWITCH
RELAY BOX

I ~~~ ~ ~ rJ!J~_1_,~~_, r ~-, r ~_,~:L, ,-~-, ,-~-, ,_!~J

FUSE BOX -- - - I

· CD
CD
[3[]
':lP.WHT) (lP.Bt.U)'

~rm
lOCK
OFF
.......
TIITnrrmrnrrnrrnftfinnffnfift· c:c::>
CD 0G
i
ACC
CIJ
U

~ c:z:J
~r-JR{l
ON Ie fO ! C3:J
~ ~ ~~~ix
UI~
P J~

,"·1.TTT
:)
I. ~ ~
,."J
It,t'. j.

I~#
I I I "'USE BOX IlELAY BOX
: \ ! "'USE No CIRCUIT RELAY No CIRCUIT
I I ~ I ACC TERMINAL ,A ! HORN TURN
LEFT TURN SIGNAL INllICATOR RIGHT TURN SIGNAL INDICATOR I , HORN TURN I,A 1 STOPLIGHTS
12V3W 12V3W I 3 STOP
i HEADLIGHTS
1SA
ISA
3 TAIL :MAINI
4 HEADLIGHT 'H,
/ "
, : ILL~r.t~~: I
/
_.A..
> I A HIGH BEAM INDICATOR 12VI.7W 11P.au<) ~ : PARKING ! 0A I HEADLIGHT 'Lei
I B OVERDRIVE INQlCATOR 12VI.7W ~ _' I TAIL ILLUMI ',A

'0
I
1
I e NEUTRAL INDICATOR 12V3.4W ; ;;j I~ i I ~ POINT i
, BACK-UP
:0 ACC
;A
'OA

111111 ; ~ ~ ame. '+---tHH-H-t II

I I

Io SlOE STAND INDICATOR 12V34W ENGINE OONTROl III II I i2 HEAD RELAY SA

~
ltIi IiIIfm
S REAR BRAKE
~;: LIGHT SWITCH
-0''''''--;7 TRUNK LIGHT

~~~~
! E OL " " " " ' " ' . . - '''' ......''', ! I "... L------------- ....--L.!:. (OPTION,
2P'RED: 2p.BLU) ~

~ ~~I
II -
';! •~ :;

'3P.WHT)

""",~,,~

I
RtGHT BRAKE AND TAILLIGHT
L- To:Side Stand SWItch (IlP.WHT]
~:=i.J..F:~
,~.WHT]
12V32 'lcp(17 '/W!

(Di.,.. .u~,"'OL"'' ' ;============~======

•
~.T----17 RIGHT REAR SlOE MAFlI<ER LIGHT
:2V32c~mW:
RIGHT Fl'lONT TURN SIGNAL ",". "'":
...uu. ;;jl-.!. (OPTION)
PiGHT FRONT. "OSmON L1GH~ " ..."''''', r L.--,
..... ~ RIGHT REAR TURN SIGNAL
c;r--"", :. _ '~
I ;::======
:lv3co(IW, FlIGHT FRONT
..... ~12V32co(13WJ
SlOE MARKER LIGHT c!J-_•• T
(OPTION) :2p·GRN)
_N'~ BRAKE AND TAILLIGHT
:~IMnco(17/W;

U HI I~"":c() :lP-8RN)
""",
',AN LICENSE LIGHT
12V3co(SWI

iE
:~
(liP-GRY)

f£Ai:lLIGHT ',',4i/liW
'1
Irrtl P ":=Uf=:"-- ...
ACCESSORY' LIGHT
,11V3W'1

=====:::I~l_."m,n, ",,;;;,'=QJ
:;P·RED)

__ ,.. . . _: ''''"
....".,
_:Q)
.""
.

.....
BRAKE
1M2' ANO TAILLIGHT
lcoI27/W'
LEFT REAR TURN
POSITiON LGHT 11V31co(23WI SiGNAL
:'I34W
...: ~ ~EFT REAR 51
,,-~. .2p.GRN :OPTION: DE MARKER LIGHT
",...

:~!(~
"'"
(lP-8U<)
3P.WMT' ~ LEFT 11V32;2cO(27Er:~D
BRAK
TAILLIGH~
LEi'T ,RC:,<T ~URN SIGNAL Ct=E"'"~"""
;2V32c~(23W: " " ' , "'"
LE'" FRONT "OSITION. LIGHT _._,
:1V3cp\IW)
LEFT FRONT ~,,,,
SlOE MARKER LIGHT ~ ...,•••
(OPTlONj :lP·GRN)
d ~ · ; 3P·WHT"
Ii - 'I
~:::'RED)
I ~
t~ R~'BLK) '''':KJ'''' TURN SIGNAL RELAY
••,_
'I"

.• o ~ i I!
~ % ~ I
~ n~n [,.s~, ~

M rdJ~
t5A~~
System (9P,RED)
mm,
V .
1~L _
GROUND F'OfNT
'2p·BLK) ·4P·BLU) . On RadIator 0 0
~ ~ ~ S
!

fsi :::.:::.-s::::
~ LIT
i,~
HQRN(LoJ LEFr CORNERING
LIGHT(RELAYI OIL PRESSURE SWITCH....J GEAR ;OSITION
:OPTION)
l'REE / SW'TCH
PUSH i FRONT BRAKE LIGHT L GROUND POINT GROUND F'OfNT

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BlK BLACK IIRN Bl!OWN
STARTER SWITCH SWITCH . On Eng,neNear • On FrameUoper VEL YELLOW ORN ORANGE
Coolant Temoerature DlostlCk
BLU BLUE i,..T·8L.u

--
S.,tCI1 lIGHT BLUE
GRN GREEN LT·GRN LIGHT GREE~
RED RED
TURN SIGNAL SWITCH WHT WHITE GRY GRAY

19-3C

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 ....iI.

~
00
CD
:.:::i:
Wr-
CD ",'"om

~ LEFT TURN SIGNAL RELAY I RELAY 3 RELAY 7 ~(Q

INDICATOR 0
m
.....
n :r
iI"""t'
~ CD ~
CD
==
.-. UJ
LCD UNIT c.c
:::lI "':e
:li
0
3 rr
'9! ...... 0
~
~
C>=1lU(
3 a:r
~ I I
I ii
IGI'mON SWITCH !i:
! WHT/SLK
00 ..... CD
~ ~~
! FUSE 2 (ISA) i :Jl: ..J
>-:Jl:

cg-- 0
:li
-
!Ill CD

m
WHT
WHT
-
00
n
10 :I
:J
REAR TURN SIGNALS MAIN FUSE A
FUSE 8 (ISA) "<
~ -~
"'t.
Q.
~

"'tv
TURN 3M
SIGNAL 3 C
~ iil
~ ....Il... ( RIGHT) --
c
m 3
c.c CD
BATTERY
;;] :I
iI"""t'
12\1 20AH 3 0

,--~J"F/~)
TURN "i>
SIGNAL liiIO
00
m
0
_----PI'lI(_ ::::1i
~
l1-GIlIWWHT

R TU1N SIGI'W.
RELAY
L TURN SIGNAL CANCEL CONTROl LNT

PUSH(fr~m)

PUSH (frrm ) GRN

IlU( !lI!.ACK am IiIIC'£'N
..L m ·mLOO ~ C!M'IGE
OFF
(Cenle' PoeitlOftl 1IIllJ·..·· lILlIE l1-el.U IJllHT III.l.IE
TURN SIGNAL SWITCH GRN ..·
1IIIEll
SUN
• IIIIEll PI'lI(
l1 , IJllHT SUN
I'll$(

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 Troubleshooting
NOTE
--"------------~--I-----
Inspect the following before troubleshooting:
" Be sure the battery is fully charged.
" Be sure fuses1 (5 A), 2 (15 A), 3 (15 A), 7 (10 A), 8 (15 A), 9 (5 A), 10 (10 A), 12 (5 A) and 13 (5 A) are good.
" Upon starting, the headlight should go off with the starter/reverse switch depressed.
" During reverse operation, the headlight should remain on even if the starterlreverse switch is depressed.

lights come on but are dim; engine starts but components or lights don't work.
" Faulty bulb
@ Loose or poor contact of related connectors
@ Open or short circuit in related wire harness
No lights (except LCD unit illumination) come on with the ignition switch on.
.. Faulty relay 3 in the relay box (tail, main)
.. Open or short circuit in wire harness from relay 3 to battery
Headlight does not come on with the ignition switch ON.
" Faulty headlight bulb
" Faulty relay 8 (HEADLIGHT Lo) and/or relay 4 (\,EADLIGHT Hi)
" A & SE: Faulty starter/reverse switch (see page 18-29)
" Faulty dimmer switch (see page 19-22)
" Loose or poor contact of related connectors
" Open or short circuit in related wire harness
Headlight goos off during reverse operation (A & SE only).
" Faulty reverse lever switch (see page 18-44)
" Faulty headlight diode for reverse (WHT/BLU & BLUIWHT) (page 18-28)
" Loose or poor contact of related connectors
" Open or short circuit in related wire harness
Parking lights (license light and Taillights on saddlebags) do not come on with the ignition
switch in P position.
" Faulty ignition switch (page 19-20)
" A & SE: Faulty parking diode (LT GRN/YEL & BRN) (page 19-24)
" Loose or poor contact of related connectors
" Open or short circuit in related wire harness
Brake lights do not come on with ignition switch ON and brake light switch applied.
" Faulty front and/or rear brake light switches
" Faulty bulbs
" Faulty relay 2 (STOPLIGHTS)
o Loose or poor contact of related connectors
@ Open or short circuit in related wire harness
Neutral indicator will not come 011.
G Faulty bulb
.. Faulty gearshift sensor (see page 16-13)
" Loose or poor contact of related connectors
.. Open or short circuit in related wire harness
" A & SE: Faulty neutral diode (LT-GRN & LT-GRN/RED) (page 18-28)

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 LightslSwitchesllnstruments
Troubleshooting (cont'd)

Tum signals do not operate.

NOTE
• If one bulb is burnt out, turn signals should blink faster than normal.
----""-"---,,,-,,,,---------

CONNECTIONS: Inspect the following

connectors for loose or poor connection: Loose or
" Turn the signal switch 3P WHT Poor Contact
connector (under trunk) I--------~ .. " Loose or poor contact of connectors.
• Turn signal switch 6PGRN/9P BLK
connectors (on cooling fans)
" A & SE: Turn signal cancel control unit
6P WHT connector (in steering stem).

~-"l~""'''-''''''
Good contact

TURN SIGNAL SWITCH: Check the turn Abnormal

signal switch for continuity (see page 19-22).1--=~----~" Faulty turn signal switch.

!----"----------
N~rmal
...... Good
RELAY: Exchange the turn signal relay for Operation
the hazard relay and check the turn signal 1 - - - - - - - - 1 > " Faulty turn signal relay.
operation again.

l No operation

Abnormal
WIRING/RELAY: Check the turn signal I-----~" Open or short circuit in GRY wire.
relay
" Open or short circuit in wire harness from
(see page 19-26).
battery to relay.
~ Normal " Faulty turn signal relay.
~'~-~-""----------
TURN SIGNAL CANCEL CONTROL
... Abnormal
UNIT: A & SE: Check the turn signal cancel
-,,----~> " Open or short circuit in wire harness.
control unit (see page 19-25). " Loose or poor contact of connectors.

Normal
~~-- , - - - . - r~"~'~~. . " Faulty turn signal cancel control unit.

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 Tum signals do not cancel automatically (A &. SE only).
Bad
INSTALLATION: Check installation of the Installation
angle sensor of the control unit (see page 8 Improperly installed angle sensor.
19-27).

Good installation

TURN SIGNAL CANCEL CONTROL UNIT: Abnormal

Check the turn signal cancel control unit SPEED SENSOR: Check the speed sensor
for speed pulse (see page 19-25). (see page 19-16).

Normal
INormal I Abnormal
" Open or short circuit " FaUlty speed sensor.
in wire harness.
" Loose or poor contact
of connectors.

II< " Faulty turn signal cancel control unit.

Tum signals do not cancel manually (A &. SE only).

SWITCH: Check the turn signal switch for Abnormal

~--+ @ Faulty turn signal switch.
continuity (see page 19-22).

Normal

CONNECTIONS: Inspect the following Loose or

connectors for loose or poor connection: Poor
8 Turn signal switch 6P-GRN/9P-BLK
Contact
connectors (on cooling fans). 8 Loose or poor contact of connectors.
8 Turn signals cancel control unit 6P-WHT

connector (into steering stem).

Good contact

WIRING: Check continuity of LT GRNIWHT No

wire between the 6P-WHT connector (control Continuity
unit side) and 6P-GRN connector (turn signal 8 Open circuit in wire harness.
switch side). There should be continuity.

Continuity
II< 8 Faulty turn signal cancel control unit.

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19-7
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 LightsiSwitchesllnstruments
Troubleshooting (cont'd)

On parking, when the front wheel is turned slowly from left to right, tum signal is cancelled
(A & SE only).
• Faulty turn signal cancel control unit.
Tum signal lights do not come on
" Faulty turn signal switch.
• Light bulbs not securely installed.
@ Open or short circuit in wire harness (BRNIWHT, ORNIWHT and/or LT-BLUIWHT wires).
• Loose or poor contact of related connectors.
One tum signal light does not come on
@ Faulty turn signal switch.
" Light bulb not securely installed.
@ A & SE: Faulty relay 7 (see page 19-24).
Hazard system does not operate

fr~nt tur~ Sign~bulbs.

Bad
BULB: Check
] ," !!!> @ Bulbs burnt out.

Good

Good
RELAY: Exchange hazard relay for turn operation
signal relay and check the hazard operation - !!!> " Faulty hazard relay.
again.

No operation

WiRiNG/RELAY: Check the hazard relay Abnormal

(see page 19-28). ~~"'~-"' iI> " Open or short circuit in wire harness.
" Loose or poor contact of connector.
Normal e Faulty hazard relay.

~"""'"

HAZARD SWiTCH: Check the hazard Abnormal

switch for continuity (see page 19-22). !!!> " Faulty hazard switch.

Normal
.. .. !!!> " Open or short circuit in wire harness
(LT BLU and ORN).
" Loose or poor contact of connector.

19=8
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 liquid crystal display (LC.D.) does not appear upon turning the ignition switch to ACC, ON, or P.
(A & SE only)
Turn the ignition switch to ACC, ON, or P. Does not
Turn the radio/cassette deck power switch/ appear
~--." Go to "Radio and cassette deck display does
volume control knob to ON. Audio display
not appear on the LCD unit" (see page 19-11).
should appear.

APPEARS (but clock and air pressure

displays still do not appear).

POWER TO CONNECTOR: Remove the

instruments (see page 19-16) and disconnect
the 20P-WHT and 14P-BLK connectors.
Turn the ignition switch ON. Measure voltage
Yes
between the LT-GRN/BLK (+) and ground
~--." Faulty L.CD. unit.
(-), between the BLK/RED (+) and ground
" Loose connectors.
(-), and between the RED/YEL (+)
and ground H on the wire harness side. " Open circuit in instruments sub wire harness
Battery voltage should register. (between the 20P-WHT and 10P-WHT).

2OP-WHT
AND No
14P-BLK ~--." Loose or poor contact of the power INPUT
CONNECTORS line connectors.
" Open or short circuit in INPUT line.

Clock displays, but air pressure display will not come on when the check switch is
depressed with the motorcycle stopped. (A & 5E only)

POWER TO CONNECTOR: Remove the

instruments (see page 19-16) and disconnect
the 14P-BLK connector. Turn the ignition switch
ON. Measure the voltage between BRN/BLU (+)
terminal ands ground (-) on the wire harness side.
With the P. CHECK button depressed, battery volt-
age should register.
Yes
~--." Faulty L.C.D. unit.
" Loose 14P-BLK connector.

r"-""~-~'~-------~-------~ Abnormal
SWITCH: Check the P. CHECK switch for ~-~-." Faulty check switch.
continuity (see page 12-36).
I
Ib..., ~" Open or short circuit in BRN/BLU and/or
LT GRN wires.
" Loose or poor contact of related connectors.

19=9
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 Ligh witchesJInstruments
Troubleshooting (cont'd)

Air pressure display doesn't change, but the on-board air compressor system is operating
properly. (A & SE only)

AIR PRESSURE SENSOR: Remove the instru- WIRING: Remove the trunk (see page
ments (see page 19-16) and turn the ignition 13-14). Disconnect the 14P-BLK (instru-
switch ON. Measure the voltage between the ments) and 3P-BLK (rear fender)
BLK/GRN (+) and GRN/RED H terminals with connectors. Check the continuity, end to end,
No
the 14P-BLK connector connected. About 5 V of each wire. There should be continuity
should register. between the same colors.
/;;;:F
/::~ Yes
-X:.
/ c;t')
0 " Open or short circuit
in wire harness.
" Loose or poor contact
of connectors.

AIR PRESSURE SENSOR: Check the air

Yes pressure sensor (see page 12-34).

Normal Abnormal
WIRING: Turn the ignition switch ON.
Measure voltage between the LT BLU (+) .. Faulty L.C.D. unit. "Faulty air pressure
terminal and ground H with the 14 P-BLK sensor.
connector connected. About 0.5-2.0 V
should regi~ter.

No

" Faulty L.C.D. unit. " Open or short circuit

in wire harness.
" Loose or poor contact
of connectors.

19~10

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 Radio &. cassette deck display does not appear on the LCD unit. (A &. SE only)
NOTE
e Turn the radio/cassette deck power switch/volume control knob to ON. The audio display should appear.
Pushing the radio/cassette switch should put the display in the radio mode, indicating AM or FM.

CONNECTOR: Remove the top compartment Loose or

(see page 13-9) and disconnect the poor contact
o Loose or poor contact of the radio and
6P-WHT connector of the radio cassette
cassette deck connector.
deck. Check the connector for loose or poor
contact.

Good contact
""~''''

No
WIRING: Perform the main harness check
of the NO.4 (Power) and NO.5 ( Display) "'...." "'"
continuity
== m= .. o Open or short circuit in wire harness.
Loose or poor contact of the connectors.
circuits (see page 20-18). o
.

Continuity
Display
DISPLAY: Clock display appears on the appears
Faulty radio and cassette deck.
L.C.D. unit. *' o
- """",,-

Display doesn't appear

.. o Faulty L.CD. unit.

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 LightsiSwitchesllnstruments
Headlight/Position light
Removal
Remove two screw.
A & SE: Remove the windshield trim from the windshield
height adjustment level tension plate.
Free the trim grooves from the fairing tabs and remove
the trim from the fairing.

Remove the front grille by removing the two attaching

screws.

, /
SCR~.~'1

Remove the headlight by removing the four mounting bolts.

NOTE
__ _ _""
~ m _ ~ " •

e The lower mounting bolts have screw threads in their

heads.

Bulb Replacement
Remove the headlight connector and rubber bulb cover.
Remove the headlight bulb.
Install a new headlight bulb.

CAUTION
•_ _• ....
~"' _ _.._ _,= ~.......'m="'''''''''''''''''' _

e If you touch the bulb with your bare hands,

clean it with a cloth moistened with alcohol to
prevent early failure.

NOTE
e Install the rubber bulb cover with its 'TOP" mark up.

19-12
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 Pull the position light out of the side portion of the head-
light and replace it with a new one.

Installation
Install the headlight in the reverse order of removal.
NOTE
" Be sure to install the headlight mounting bolts prop-
erly. The lower bolts have screw threads in their
heads.

Turn Signals/Brake Lights

Front Tum Signal/Position lights
Remove the front turn signal/position light lens by remov-
ing the screw.

LENS

Remove the bulb by turning it counterclockwise.

Insert a new bulb into the bulb socket and turn it clockwise
Install the lens.

CAUTION
" Do not overtighten the lens mounting screws.
The lens will crack.

19.. 13
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 LightsiSwitches/lnstruments
Turn Signals/Brake Light (corlt'd)
Rear Tum Signal/Brake and Taillights (Trunk)
Open the trunk lid.
Remove the bulb cover.
Remove the bulb by turning it counterclockwise.
Replace it with a new one, turning it c1ocl<wise.

Brake and Taillights (Saddlebags)

Remove the screw covers and screws.
Remove the saddlebag lower cover.

m 8e careful of the alignment of the cover and saddle-

Remove the bulb by turning it counterclockwise.

Replace it with a new one, turning it clockwise.

NOTE
" Align the cover hole with the saddlebag claw.

BRAKE AND TAIWGHT

19=14
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 LicenselAccessory Light
license light
Remove the license light cover by removing two screws.
Pull the bulb out of the bulb case.
Replace it with a new one. Install it in the reverse order of
removal.

CAUTION
---------
@ Do not overtighten the light cover mounting
screws. The cover will crack.
SCREWS LIGHT COVER

Accessory light TRUNK L.OWIi:R COVER

Remove the trunk lower cover by removing the four
-'--", ...==::.-
mounting screws.

Pull the accessory light bulb socket out of the trunk.

~-
Replace it with a new one, turning it clockwise. ~ ACCESSORV liGHT

NOTE
" Install the trunk lower cover by first aligning the front
claws into the trunk. Then securely align the trunk
claws with the lower cover slots.

FRONT
CLAW

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 LightslSwitchesJInstrulnents
Instruments ,,,-,,, '''~'''''~'''''-'''''-'''~''''''~~~~~''~~~~''''~

Remov«3I/Bulb Repl«3cement
Remove the instrument panel (see page 13-11).
Remove the instruments mounting screws.
Disconnect the speedometer cable.

SPEEDOMETER CABLE

Pull the bulb out of the instrument case and replace it with
a new one
To disassemble the instruments, first disconnect the 14P-
BLK and 20P-WHT connectors (I model: 14P-WHT con-
nector) and then remove the instruments from the frame.

For L.C.D. unit illumination replacement only:

Remove the L.CD. unit as shown.
(For L.C.O. replacement, see page 19-19).
CAUTION'-'~"-~~"'-- --_._---,,_ ....,,'~~.,._.-
o Do not tum the gauges upside down because
they will leak damper oil.
@ Do not damage the LC.D. unit flat cables.

Speed Sensor Inspection (A & SE only)

Check the speedometer cable for proper connection. GAUGES

Remove the instruments with the 14P-BLK and 20P-

WHT connectors connected (see above).
Connect a voltmeter across the LT-GRN/BLK (+) and
GRN/BU( H terminals of the sensor 3P-WHT connec-
tor.
Battery voltage should register when the ignition switch is
turned to ACC, ON, or P.
The absence of power indicates the speed sensor is not
receiving power from the battery. Trace and repair the
related wiring, connectors and/or components (relay 3
and fuse 10).

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 Instruments (coi1t'd)

Connect a voltmeter across the BLK/BRN (+) and WHTI

BLU (-) terminals of the sensor 3P~WHT connector.
Turn the ignition switch ON.
The sensor is normal if the voltmeter needle slowly
swings from 2 to about 10 V eight times when the
speedometer drive shaft is slowly turned one full turn.
If all checks are O.K., replace the speed sensor.

Electric Tachometer Inspection VEl/BLU WIRE

Remove the instruments with the 20P~WHT (I model: ,~

14P-WHT) connectors connected (see page 19-16). ,-z \ ~.~O;:::-;:~.<./

Check the YEUBLU wire for continuity between the

tachometer terminal and the engine control unit connec-
tor.
There should be continuity.
Check the GRN wire for continuity between the tachome-
ter terminal and ground.
There should be continuity.
TACHOMETER
TERMINALS

INSTRUMENT
PANEUGLASS

Disassembly
Remove the reset knob.
A & SE: Remove the clock adjust knob.
Remove the instrument panel and glass by removing six
screws.

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 LightsiSwitcheslinstruments
Instruments (cont'd)
A & SE: If you are replacing the clock adjuster, remove
two screws and disconnect the 3P~BLK connector behind
the instrument case.

Remove two electric tachometer terminal screws and two MOUNTING SCREWS
tachometer mounting screws.
Remove the tachometer from the case.

A & SE: Disconnect the 3P~WHT connector to the speed

sensor.
Remove the two screws. Remove the speedometer from SPEEDOMETER
the case.

Disconnect the 1OP~WHT, 6P-WHT, and 3P-BLK con~

nectors. (I model: 4P~WHT connector).
Remove the instrument backing cover.

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 A & SE: Remove four screws. Remove the L.G.D. unit
and gauges as an assembly.

If you want to remove just the L.G.D. unit, remove ten

screws. Then remove the L.G.D. unit from the base.

If you want to remove the gauges, remove the rear side of

the L.CD. unit (see above).
All Models: Remove the gauge terminal screws and
gauge panel screws.
Remove the gauges.

CAUTION
" Do not tum the gauges upside down because
they will leak damper oil.
" A 11 51:: Do no damage the loC.D. unit flat cables.

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 LightsiSwitchesllnstruments
Instruments (cont'd)
Assemblyllnsiallation
Assembly and installation are in the reverse order of disassembly and removal.
NOTE
.. Connect the terminals according to the color codes on the L.CD. unit and instrument case.

Ignition Switch
Inspection "-
ITGRN/ BlU/ YEU BRNI BRN
Remove the left fairing lower cover (see page 13-12). Color RED BlK BlK ORN BlK WHT
-- I----- .
Disconnect the 8P-BLK connector from the connector LOCK
holder on the left cooling fan.
OFF
Check continuity of the terminals on the ignition switch in
ACC
each position.
ro- r-<:c- --0
~

ON 0- 0 {)
NOTE
.. The continuity check may be made without removing
p ~~ F-~~~
ro {)
"-
the switch.

Removal
Remove the fairing (see page 13-13).
Strike the break-off bolt heads with a steel hammer.
Then make a drive groove on the bolt heads using a cold
chisel.

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 Remove the break-off bolts, using an impact driver.
Remove the ignition switch.
IMPACT DRIVER

/
Disassembly
Insert the key and turn it to "P" (park).

"P" POSITION

Release the wire from the wire clamp.

Push the lugs from the slots and remove the contact
base.

Assembly
Assemble in the reverse order of removal.

Installation
Apply a locking agent to the new break-off bolt threads, NEW BmEAK-Off BOLT
as shown.
\

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 LightsiSwitches/lnstruments
Ignition Switch (cont'd)

Install the ignition switch with the bolt.

Tighten the break-off bolts until the bolt heads break, as
shown.

NOTE
" The bolt heads should break off with a force of 36 N-m
(3.6 kgm, 26 ft-Ib).

Install the fairing (see page 13-13).

left Handlebar Switches

Inspection • LEfT #(~P-~HTIA~ SE only)
The handlebar cluster switches (dimmer, hazard, turn
signals, horn) must be replaced as an assembly.
Remove the left and right fairing lower covers (see page
13-12).
Disconnect the 9P-BLK, 6P-GRN and 4P-WHT connec-
008CloJ .....
ISP-GRN

tors from the connector holders on the cooling fans. • RIGHT

jlS=Q~
Continuity tests for the components of the handlebar
cluster switches follow. Continuity should exist between
the color coded wires:
9P-BLK

BWI PNK/ LT
Color WHT WHT BLU Color WHT BLU DRN
La FREE
Hi
PUSH
(LOCK) 0- -0- -0

DIMMER SWITCH HAZARD SWITCH

Color WHTI LT
GRN GRN
FREE

HORN SWITCH A & SE ONLY

LTGRN
/WHT
R

Push

TURN SIGNAL SWITCH

19-22
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 Brake Light Switches
Front
Disconnect the front brake light switch wire connectors
(smaller terminals).
Check for continuity between the WHT/GRN and GRNI
YEL wire terminals.
Brake lever released: No continuity
Brake lever pulled in: Continuity

Rear
Remove the right fairing inner cover (see page 13-12).
Disconnect the 2P-BLK connector from the connector
holder behind the ignition control unit.
Check for continuity between connector terminals.
Brake pedal released: No continuity
Brake pedal applied: Continuity
For adjustment, refer to page 3-28.

Oil Pressure Switch

In$pectic:m
If the oil pressure indicator light does not come on,
inspect the "POWER TO PRESSURE SWITCH" line
first, as follows:
Remove the under cover (see page 13-11).
Pry off the rubber cover and disconnect the wires from the
oil pressure switch.
Turn the ignition switch ON. Measure voltage between
the BLU/RED (+) terminal and ground (-). Battery volt-
age should register.
If voltage doesn't register, inspect as follows:
o indicator bulb.
o open or short circuit in wire harness.
o loose or poor contact of related connector.
If voltage registers; replace the oil pressure switch with a
new one.
If the oil pressure indicator light stays on with the engine
started, check oil pressure (see page 3-14).
If the oil pressure check is O.K., replace the oil pressure
switch.

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 LightslSwitchesllnstruments
Relay Box"
Continuity Inspection
BLU CONNECTOR
Connect a 12 V battery as shown and check for continuity (ONLY RELAY 7)
between the indicated terminals.

Connect a Disconnect a
RELAY
battery battery
.-"---.............- - _...--:._--1
1,2,3, and 4 YES NO
1 - - - - - -.... r---....- - -..-t-----~------I
7 (Position)
NO YES
A & SE only

YES: Continuity should exist.

NO: No continuity should exist.

Parking Diode
Inspection (A & SE only)
Remove the right saddlebag (see page 13-17).
Remove the parking diode (LT GRNIYEL & BRN) from
the main wire harness.
NOTE
o This test chart is for a positive ground ohmmeter. The
test results will be reversed if a negative ground ohm-
meter is used.

Normal Direction: Continuity (About 15 ohms)

+ probe: (+) terminal
- probe: (-) terminal
Reverse Direction: No Continuity PARKING DIODE

+ probe: (-) terminal

- probe: (+) terminal

19=24
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 Self Cancelling Turn Signal System
Tum Signal Cancel Control Unit Inspection
(A &- SE only)
NOTE
.. Be sure the-battery is fully charged.
.. When inspecting this system, check the system
components and lines step-by-step according to the
troubleshooting chart on pages 19-6, 7, 8.
e Check that the sub fuses (2 and 8) are not blown.
6P-BRN CONNECTOR
Remove the left fairing lower cover (see page 13-12).
Disconnect the 6P-BRN connector from the connector
holder on the left side cooling fan.
Measure the following between each terminal of the main wire harness side and ground.

.., -_.
~
'-"'-
__
. ..
LINE TERMINAL CONDITION(S) SPECIFICATION
~-'--'-----""-- . "'....=,,,

_ __
Battery voltage (+) ....input _.__.._-
._._... WHT/GRN
f-........- ..
Ignition switch ON
u " = _ ._ _ _ _ _ _•
Battery voltage should register
------
Turn signal ON PNK Turn signal switch R or L Continuity should exist
~------_....-

Turn signal switch PUSHED No continuity

" .... ,

Turn signal OFF LT/GRN Turn signal switch R or L No continuity

..
WHT
Turn signal switch PUSHED Continuity should exist
-
Speed pulse from the speed sensor WHT/BLK (+) Front wheel rotated slowly 0-10 volts pulse
Ignition switch ON
_ ·_ _ _ _ _ _•
"u~

"'--" .. ....._--
Canceloutp ut BLU/BLK (+) Ignition Turn signal o volt should register
switch ON & operated in
6P BRN R or L
connector- N _

connected Turn signal Battery voltage should register

switch
PUSHED
.. ""

Ground GRN At all times Continuity should exist

..

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 LightsiSwitchesllnstruments
Self Cancelling Turn Signal System (cont'd)
Tum Signal Relay Inspection TURN SIGNAl,. RELAY

Remove the trunk (page 13-14).

Disconnect the 3P-WHT connector from the turn signal
relay.
Disconnect the 4P-WHT connector from the connector
holder on the left cooling fan.
Check for continuity between the same color (GRY) 3P-
WHT and 4P-WHT connectors.
Continuity should exist at all times. 3P-WHT
CONNECTOR

Measure voltage as follows:

Between WHT/GRN (+) and ground (-):
Battery voltage should exist with the ignition switch ON.
Between BLU/BLK (+) and ground (-):
Battery voltage should exist with the ignition switch ON
and the relay 3P-WHT connector connected to the relay.

19-26
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 Tum Signal Cancel Control Unit
Removalllnsmilation
Remove the handlebar center cover.
Slide the steering stem grommet to the wire harness side.

CALITION
" Apply a small amount of soap and water solum
tion to the turn signal cancel unit wire surface to
slide the grommet smoothly.

Remove the retaining screws. Move the turn signal can-

cel control unit enough to disconnect the unit connector.

NOTE
" If necessary, slide the steering stem grommet more.

Disconnect the turn signal cancel control unit connector

and remove it.

Make sure the angle sensor of the control unit rotates

smoothly.
Check the angle sensor plate for damage. Check that
plate is installed tightly against the sensor boss.
Install the plate in the reverse order of removal.

NOTE
" Make sure the retaining screws are tightened
securely.
~--

19..27
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 Ligh witchesllnstruments
Hazard Relay
Inspection
Remove the trunk (see page 13-14) and left fairing lower
cover (see page 13-12).
Disconnect the 3P-BLK connector from the hazard relay.
Disconnect the 4P-WHT connector from the connector
holder on the left cooling fan.
Check for continuity between the same color (PNK/WHT)
3P-BLK and 4P-WHT connectors.
Continuity should exist at all times.

Measure voltage as follows:

Between LT GRN/BLK (+) and ground (-):
IGNITION
Battery voltage should exist with the ignition switch ON. SWITCH
Between PNK/WHT (+) and ground (-): MAIN \
About 5 volts should exist with the ignition switch ON and FUSE A
the relay 3P-BLK connected to the relay.

Horn
Inspection
Remove the fairing front cover.
Disconnect the horn wire connectors. Connect a fully
charged 12 V battery to the horn terminals.
The horn is normal if it sounds when the battery is con-
nected across the terminals.

Replacement
Remove the under cover (see page 13-11).
Disconnect the horn wire connectors.
Remove the horn stay mounting bolt and horn.

19-28
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 High Mount Accessory Light
Replacement (SE only)
Open the trunk lid.
Disconnect the high mount accessory light wire
connector.
Remove the four mounting bolts and the wire clamp.

Remove the tail spoiler from the trunk lid.

TAil SPOilER Ii

1A12
I '--
~
Eo> 1
- .. - ~,
I --.. '.

Remove the four screws, washers and rubber cushions.

Disconnect the wire connector and remove the high
mount accessory light from the tail spoiler.
Install the high mount accessory light in the reverse order
of removal.
Torque: Mounting bolts 6 N-m (CUi kg-m, 4 ft-Ib)

Accessory light Control Unit (SE only)

Remove the trunk (see page 13~14).

Remove the control unit from the frame and disconnect

the 3P-WHT connector from the unit.

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 LightsiSwitchesllnstruments
High Mount Accessory light (cont'd)

Check for continuity between the "C" and "S" terminals

and between the "C" and 'T' terminals. OHMMETER

Tester EB probe Tester e probe

.- Result
"C" Terminal "S" Terminal Continuity
"S" Terminal
_. "C" Terminal No Continuity
"C" Terminal ''T'' Terminal Approx. 510Q
"T" Terminal "C" Terminal No Continuity

Cornering light
Replacement (SE only)
Remove the fairing lower cover (see page 13-12).
Remove the three screws and the cornering light from the
fairing lower cover.

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 Audio
Service Information 20-2
Troubleshooting 20-5
Speaker . . . . . . . . . . . . . .. 20-14
Muting/Search Switch .. 20..14
CB Switch/Fader
Control 20-15
Antenna 20-16
Radio & Cassette Deck. 20-17
CB Transceiver .... . . .. 20-21

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 Audio
Service Information
@ This selection includes service information for the audio system.
@ The radio model number is: AlSE model: RM-G30
I model: RM-G40

" When inspecting the audio system, check the system components and lines step-by-step, according to the
troubleshooting chart.

NOTE
Before troubleshooting the audio system, check the following:
.. Check AM radio reception by tuning to an AM station known to have a strong signal.
.. Check FM stereo reception by tuning to an FM stereo station known to have a strong signal. If no strong FM stereo.
signal is available, tune to your own voice by using an FM stereo microphone connected to the FM radio.
" Check that the cassette deck tape heads are clean. (A and SE models)
@ Listen to a cassette tape known to be good. (A and SE models)
@ Inspect the following fuses inside the fuse box:
A & SE models: fuse 10 (10 A)
fuse 13 (5 A)
I model: fuse 9 (5 A)
fuse 10 (10 A)
-----
@ Tape Player Maintenance (A and SE models):
The head in the cassette tape player can pick up dirt or tape deposits each time a cassette is played. The result is
low or "muddy" sound from one or both channels, as if the treble tone control were turned all the way down. To
prevent this, periodically clean the head with a commercially available cleaning cassette. As preventive mainte-
nance, clean the head about every 30 hours of use. If preventive maintenance is delayed until the head becomes
very dirty (noticeably poor sound), it may not be possible to remove all deposits with a simple cleaning cassette.
NOTE
.. Failure to store cassettes in their cases or touching the magnetic tape with the fingers will increase the amount of
dirt that gets to the tape head. Using low-quality "off-brand" tape will increase the amount of tape deposits that get
on the head. Eventually, such practices may lead to damage of the head and playing mechanism.
@ All memorized radio channels are erased when the battery is removed. Upon reconnecting the battery, the follow-
ing channels will be set automatically.

Channels AM (kHZ) FM (MHz)

1 530 87.5
2 600 90.1
3 1000 98.1
4 1400 106.1
5 1620 107.9
6 530 (1:1710) 87.5
" A and SE models: The "ambience" circuit blends and boosts certain frequencies from both channels for a "live
performance" effect. To use the circuit, push the AMB button until "AMB" appears in the display.

NOTE ---_.
@ AMB is usable for both tape and FM stereo programs. The ambience circuit should not be used for the following:
1. mono recorded tape
2. AM radio signals
3. weak FM stereo signals
4. FM stereo signals interfered with by mountains or buildings.
_---------------------
.

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 HI
Circuit Diagram
A & SE Models:
CB TRANSCEIVER

•
FOR PASSENGER
GROUND (MIC) GROUND AF CONTROLLER (OPTION:
ACC TERMINA~
MEADSET AF OUT 9 MUTE OU' llP llIlNJ
- @ @

mM
-
CBON

MODE IN
10

II
TAl.K

CHANNEL uP
L
_ _ (IIP.WHT
RADIO" CASSETTE DECK
) 0 ~
~ $ i r----~ CB TRANSCEIVER I
REL.AY BOX
.----, r---...,
FUSE 13 I I
FUSE BOX

FUSE 10 I I( , )\!
_ ~
>C
~
>C is
l5 (llP-GRY; 0 I 5A I I lOA I •( 2 )

IHnmrmmmmrnn IiI~l~$II' UPi!PflrrpI $C LflJ LFT

5 I GROUND 12 CHANNEL uP· DOWN CONTROL

61 MIC IN 13
I.
ACC

d sPEAKER AF O~- S4CK-uP

Iiii l1Iili i if ii ;hhhhhhf~ol!

15 STARTER REVERSE SWITCH

l.CD~

10 DATA
IIl.OAD ,
mil f Mlilfli
• •
i , ; ;
12 Cl.OCK
13 GJC) (DATA;
...
c
17 sPEED PULSE ~
20 BLANKWG ai FUSE BOX RELAY BOX

-... I I .J IJ1J FUSE No CIRCUIT

L
I 10ACC 101.
~ 13 BACK-uP 5A
....
C
illP.WHT; I _------J
."

~~~ 1IlN'IlU<- J - J
K

j::;:a:(]:k~;
RADIO' CASSETTE DECM

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9
1

2
i
!
RIGHT SPEAKER •

RIGHT SPEAKER -
10

111
I
7r:;i:)MIC E 119
MEADSET MIC
(PASSENGER)
20
MUTE OU7

GROUND AF
28 I STAFTER/REVERSE SWITCH

29
(Compulsory Mutong)

~I.TI.

~1JlIlI
RIGHT f'T-o...-RED G/lh . :2P WHT'

~ L~t14P·
HEADSET MIC
FRONT BlK I moo sPEAKER 3 i LEFT SPEAKER - 12
(ORIVER)
21 SPEAKER A~ OUT 30 _~AO

(~~E~H~~L)
''''''mI
I i LEFT SPEAKER - 13 MIC IN 31 :::'OCK
4 122

SPEAKER
LEFT GRY BlK -YEo
WHTaK . .,'"
:- '"
WHTQL.K lIIlN'WHT YEL
IlED WHT
llIIN CB TRANSCEIVER
ANTENNA 5 I' HEADSET MIC E
(PASSENGER)
14 (~:~~:;EL) 123
GROlJNl) 32 ~IDATA

FRONT Ell.U G/lh BLU 'YEL BLU 'YEL

6 i MUTING SWITCH ON 15 :~~S~:I: ~ I 24 MODE I" 33 3_ANKING

71 SEARCH SWITCH uP 16 sPEED PUl.SE 25 CBON

'M~~m~_I.~ ~ L_~~~ j =
8 1 SEARCH SWITCH DOWN I 17 GROUND 26 HEADSET AF OUT
I

9 I IGNITION SWITCH ACC 18 BACK-uP 27 GR()I.H) (MIC)

,-
-
- -
rs"'ED WIRE)
-~)

~ 13
II I

I
RADIO
,-_ . I t •.·S t.,tor/R•••rs.
- LT· GAN'BlM ,:, ANT~

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=::::'I!=~'I
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~~$~~~ ~~~~
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".J i
Il.OCK: DOWN:
FADER CONTROL DOWN 0+--+0 1
STARTER REVERSE SWITCH Ace
TALK MUTING ON
CHANNEL SELECT SEARCH
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rolUTlllIGiSEARCH

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CB SWITCH SWITC~ VEL. YEU..OW (Jllh Ol'a.-a

--
~;NITION SWITCH Ell.U BLUE LT·BLu uG--:L£
GAN GIlED- LT·GAN uGr-- io'lEDI
RED RED
WH"T wMIT! GIIY (;1;.1'

20-3A

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 ill
Circuit Diagram
SE Model:
FaR NSSOlGEA
CONT1lOUDI (OPTION) CI T1lMl5CEJVER
ACC TERMINAL v=======::::...
IlEl.AY lOX FUSE BOX @ @ ( ,

m\'OGJ[j
I (......] I FOR C8 TRANSC£JVER (OPTION) I TAU

~
~"",..r, i r----~ ~----., r----~
~
I 2 S • 5 • I

- :H
RElAY 6 I FUSE 13 I I "USE 10 I I FUSE 11 I
L-r.J~
AADIO. CASSETTE DECK 2 0I1J1
5A

.~~ili ~I>-"""il 3 OIIJ1-01l CCIfT ::HJIOA ::HJllA:

: i Il! ~ ~!I
(~lH2)-WHT) I IL __ ...II L
I __ IiL _ I
I~; 4 ACe
~~ ii ~ W ~ ; 1 ; I~1.:11:1
I . 5 8AQ(-IJI
~w 11 ~I I It ~ ~
I
I
, STAIlTERIIEVER5£ III 5~::.I (,
4
5
)
l:

~i08
SWITOI
I
I
I
18II ~" ( 12.)
t9 ) I;,~' .
~J .,>.>c,,<
I fu"':"-?, ~
IL

-I
_
r LCDUNT
"USE BOX RELAY BOX
I JIIlm "USE No CIRCUIT RELAY No CIRCUIT
I II LOAD 10 ACC lOA 6 IGN. CRUISE
I 12 CLOCIl II IGN CRUISE
13'SACK-UP
15A
5A

......
II GIll (DGa)
17 SPUD IU.SE

1=== r _0..81 ~'III ~

I~~
1

2
F1lONT RIGHT
SPEAKER t
F1lONT RIGHT
RADlO • CASSETTE ClECK

9
IGNITION 5WITOI
Ace t
11 GND -

~~.
10 HEADSET 1Il1C. E (011) II IIACI< UP +
SPEAKER ~
F1lONT LEFT
3 SPEAKER ~ 11 HEADSET IiIIC, (PA)
19 ~~r;:,~va:I~:~~CM
4 F1lONT LEFT
12 HEADSET IiIIC, (OIl) 20 DATA
SPEAKER f
5 HEADSET 1iI1C. E(PAl 13 HEADSET OUT IRch I 21 i LOAD

i~~~J
I
I
(I1'«Jt)
WHT.... ~....
6 MUTING SWITOI ON 14 HEADSET OUT JLch)

HEADSET OUT E
22!CLOCK
1 SEAAPl SWITCM UP 15 23 ! GND (DATA)
'111111111111111 Y£l.11}lB. I ,I 1111111111
----~
II RADIO SWITCM E

,N.Sl'IUmIT
r;1:
!L, ~-
•
SEARCH
SWITCM OOWN 16
I
I SPEED PULSE 24 BUNKING

.
.~iLr ~~~~~~~~~E--
I ~ ~
~

~~
;;
• > ~.'''..
'''"''''I " • •
-----_•• :.
. '"',"'-
"'_
'''"'"'I
"" ............
''''''''' AIfTaN

i~ L, ------IJI

IlI&IfT
-. [)E:...... " rF~=====OJ
_....- ~:':;;ill=1IED1
.......[lgGRY'8LK - ~'"'BLK ~,'"
"'-"'-

-~
L£FT (':;:-WHT)
=.. '""...
..--------~H---1rF=~~=----TITTl I iIi
I
YEl..1l£D. . . . '

!l • !l ~ ~~~-BLK~
(l'-GIIllc;;r--c;-:?
- ~
("lIED] a ..

.. ; --....
!1I!1I(I'-lIED)

~0PT10N) T
~.
QII~

~
ialII!i !>- j 000 U, ~(I'-El]
I! I .. VEL : FOR

(.-.eu<)~
~
!
(FoU] FOIl CI TRMSaIVEJt lIED BLU WH1'
I
-
SWITOI(CPTIllIlI _ IATTDlY BLK BLK
LT-G
-~~~~=~=ll ~
,i~
6
GRN 12V M4 IP.OIIl
~

• ~ ~
i~ i i= J jI ~I t,.,!
LTo:St.ltf/lMww
s,st_

"""
• I • FAIl I P I T1.' TlJ %
-,! :J ~ BLK

~
LOCI( Il.ACK IIIIN 8AQWIII
5TARTtR
Y£I. YElL.OW OAN ORANGE
OFF AEUY
~~GROUNO POINT

-
SWITOI A BLU BLI.€ LT«.U UGHT BLI.€
ACC ( .) A .On Radiator, Ne¥ ThermostatIC Fan Motor SMlch GRN GREEN LT-GRN UGHTGAEEN
ON 0- r-o- ~ r-o 0- ro ••On Encine. Near Coolant TenlIleI'al"e Sw1tcn
lIED lIED PIlI(

GRAY

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WHT WHT[ GRY
p ( J -0 e .On Enaine. NN" DipslJd<
IliIIl'1OIl S'MT04 STARTEIIJREVERS£ SWITOI MUTING I S£AAOI S_ITOI

I
D'On Frame. Upper DipslJck

20-38

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 3: Q
8. rir::
m. ::;:
RADIO

c
Dr
cc
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3
F\J5[101
F\J5["'CllCUT
IUCIl-i,P \'

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LI< LI<Cl<

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'/(l

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........ ....
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L 8fT .....

o lI[l)

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I
~
o

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 Audio
System Location

RADIO 8< CASSETTE DECK (A 8< SE)

RADIO II)

IGNITION SWITCH FRONT SPEAKER

MAIN FUSE A

20..4
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 Audio
stem Location

RADIO &. CASSETTE DECK (A &. SE)

RADIO (I)

IGNITION SWITCH FRONT SPEAK.ER

MAIN FUSE A

20=4

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 Troubleshooting
Audio System
NOTE
--~,,---_ .._.------_.
o Before troubleshooting the audio system, be sure the following fuses (inside the fuse box) are good:
A & SE models: fuse 10 (10A) I model: fuse 9 (5A)
fuse 13 (5 A) fuse 10 (10 A)

Speakers (optional headsets): No sound.

..NOTE
"'._--"-,,._---_.
e If you use the speakers, select the speaker with the Headset/Speaker Mode Button (I model: knob). The display
will indicate" " (speaker).

CONNECTOR: Remove the top compartment loose or

(see page 13-9) and disconnect the 18P-WHT poor contact
connector of the radio & cassette deck. Check -"'''--''''~ .. Loose or poor contact of the radio and

the connector for loose or poor contact. cassette deck connector.

··"-"·--TG~~d"'c~-nt-ac-t-'-----,.J

F"'''-~-~~'~-------~- - - -...
WIRING: Measure the voltage between the
LT GRN/BLK (+) and GRN (-) wire terminals
of the 18P-WHT connector (wire harness side).
Battery voltage should register with the ignition
switch in ACC, ON or P. ~ . . . Open or short circuit in wire harness .
.. Faulty ignition switch.
.. Loose or poor contact of connector.

WIRING: Measure voltage between the

No
REDIYEL (+) and GRN (-) wire terminals of I--=='~--. .. Open or short circuit in wire harness.
above connector. Battery voltage should .. Loose or poor contact of connector.
register at all times.
~---r-y,-e-s-------"=-==--

WIRING: Perform the main harness check of No

the NO.1 line (and NO.2 for optional headset) continuity
--~-.
...... 0 Loose or poor contact of the speaker
(see page 20-17). Perform the headset junction terminals.
wire check (see page 20-20).
.. Open or short circuit in wire harness.
1 Continuity
--------=,
.. Loose or poor contact of the connectors .
.. (Faulty headset junction wire).
SPEAKER: Check the speakers (see page No good
~_="--. .. Faulty speaker.

="-=
20-14).
.. (Faulty optional headset).

' '-GOd = lJO" Faulty radio and cassette deck.

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20-5
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 Audio
Troubleshooting (cont'd)

Radio and cassette deck work, but do not search 01" mute with the muting/search switch,
NOTE
.. To play the radio on the A and SE models, push the radio/cassette switch. It should be in the RADIO mode with the
display indicating "AM" or "FM".

1"""'--- = --~---.."

CONNECTOR: Remove the left fairing lower Loose or

cover (see page 13-12) and disconnect the poor contact
.. Loose or poor contact of the connector.
4P-BLK connector from the connector holder
on the left cooling fan. Check the connector for
loose or poor contact.

~ GO~d contact
No
SWITCH: Check the muting/search switch for continuity
continuity (see page 20-14). .. Faulty muting/search switch.

1Conti~ui~ No
WIRING: Perform the main harness check of continuity
the No. 31ine (see page 20-17). .. Open or short circuit in wire harness.

I Continuity
.. Faulty radio and cassette deck.
Weak (or noisy) reception
NOTE
----_._",._------
.. Use of the ambience (AMB) circuit may cause weak FM signals (A and SE models only) .
.. As FM stereo reception becomes weaker, special circuits in the radio gradually blend the sound toward mono to
maintain some sound quality, even though the ST indicator remains ON.

ANTENNA CONNECTION: Remove the

seat (see page 13-8) and check the antenna
connector and antenna ground wire for loose
or poor contact.
GOOD COIIINECTlON
Loose or

T\t HAAN,
-,
t-----. . Loose or poor contact of the antenna
poor contact
connector or ground wire.

~-==Iv;:'........~?"
"

ANTENNA: Check the antenna for continuity No good

(see page 20-16). 1-----=-.......... Faulty antenna base.
l-G-O-O-d-------------'

o
20=6
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 No
WIRING: Perform the main harness check of continuity
the No. 8 line (see page 20-19). " Loose or poor contact of the connector.

! co'ntinuity
" Open or short circuit in wire harness.

CONDENSER: Check the condenser of the

regulator/rectifier (see page 17-12) at the No good
alternator. " Open circuit in the condenser.

~~d Do " Faulty radio and cassette deck.

Radio cuts out and loses memory while riding.

NOTE
" If you remove the battery, all memorized channels will be erased. Upon reconnecting the battery, certain
channels will be automatically (see SERVICE INFORMATION).

CONNECTOR: Disconnect the 18P-WHT loose or

poor contact
connector of the radio and cassette deck.
Check the connector for loose or poor contact.
I--~----.Do " Loose or poor contact of the radio and
cassette deck connector.
Good contact

WIRING: Measure the voltage between the

REDIYEL (+) and GRN (-) wire terminals of
the 18P-WHT connector (wire harness side).
Battery voltage should register, even if the
ignition switch is in OFF or LOCK position.
No
.. Open or short circuit in wire harness.

-~I_y~~_~--------=---~------DoDo . Faulty radio and cassette deck.

The radio and cassette deck display does not appear on the LC.D. unit (A and 5E models).
" See page 19-11.

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20-7
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 Audio
Troubleshooting (cont'd)

AVC (Auto Volume Control) does not work at all (A and SE models).

SPEEDOMETER CABLE: Check that the No

speedometer operates properly. o The speedometer cable is disconnected.

~ Yes
- Loose or
CONNECTOR: Disconnect the 18P-WHT poor contact
connector of the radio and cassette deck. o Loose or poor contact of the radio and
Check the connector for loose or poor contact. cassette deck connector.

~ GOO~ contact
No
WIRING: Perform the main harness check of continuity
"'~~vo.w",
~ o Open or short circuit in wire harness.
the NO.6 AVC circuit (see page 20-18).
Loose or poor contact of the connectors.
I Continuity
"""'''--~
o

o Faulty speed sensor (see page 19-16).

o Faulty radio and cassette deck.
Uneven tape speed (A and SE models).
" -
",....

TAPE: Exchange the tape and check the

playing speed. Satisfactory o Faulty tape.

~ Sti II no~' satisfactory

CASSETTE DECK: Check the inside of the Dirty
cassette deck for dirt; clean it. o Dirty cassette deck.
''''=

I Clean
",,,~
l> o Faulty radio and cassette deck.

Unsatisfactory cassette deck sound (A and SE models).

NOTE
o Use of the ambience (AMB) circuit may cause poorly recorded tapes to sound worse.

Try with another good cassette tape.

! Sound ~~iII bad

Good sound
,..",,= .. " Faulty tape.

- "
CASSETTE DECK HEAD: Check the cassette Dirty
deck head for dirt. I--'~ i> o See SERVICE INFORMATIONrrape
player maintenance.
! Clean

SPEAKERS: Exchange the speakers for two Satisfactory

known to be good and listen again. " Faulty speakers.
I ~
actory
I o Faulty radio and cassette deck.

Radio works, but cassette deck does not work at all (A and SE models).
o Faulty radio and cassette deck.

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 CB Transceiver System
NOTE
~ Before troubleshooting the CB transceiver system, be sure that fuse 10 (10A) - inside the fuse box, and fuse 13
(SA) - inside the relay box, are good.
---,,,.,,,,----------------------
CB transceiver does not tum em or channels are not memorized.
loose or
CONNECTOR: Remove the left fairing pocket
poor contact
(see page 13-8) and disconnect the 16P-GRY " Loose or poor contact of the CB
connector of the CB transceiver. Check the transceiver connector.
connector for loose or poor contact.

WIRING: Measure the voltage between the

LT GRN/BLK (+) and GRN/BLK (-) terminals No
of the 16P-GRY connector (wire harness side). - - - p p . .. Open circuit in wire harness.
Battery voltage should register with the ignition $ Faulty ignition switch.
switch in ACC, ON or P. .. Loose or poor contact of connector.
Yes

WIRING: Measure the voltage between the

REDIYEL (+) and GRN/BLK H terminals of No
the 16P-GRY connector (wire harness side). .. Open circuit in wire harness.
Battery voltage should register at all times .. Loose or poor contact of connector.

I Yes
---------.,,---------~l!Ol!O.
11-. @FaultyCBtransceiverunit.

Channel cannot be changed.

UNIT VOLTAGE: Remove the left fairing
pocket (see page 13-8). Measure the voltage
between the ORN (+) and GRN/BLK (-), and No
between the GRY (+) and GRN/BLK (-) 1-------. . Faulty CB transceiver unit.
terminals of the CB transceiver 16P-GRY
connector with the connector connected.
There should be 4-6 V.

. ..
~~~~w w"

WIRINGICB SWITCH: Perform same voltage Disconnect the 16P-GRY connector,

Yes
check while operating the channel select lever. reconnect it securely and recheck the
There should be 0 V between the ORN and system.
GRN/BLK terminals with the lever pushed up,
and 0 V between the GRY and GRN/BLK
terminals with the switch pushed down.
! Abnormal Normal

.. Faulty CB transceiver unit.

.. System is OK.
.. ."""""J No
CB SWITCH: Check the channel select lever No Continuity
for continuity (see page 20-15). @ Faulty CB switch.

I Continuity
l!O @ Open circuit in wire harness.
@ Loose or poor contact of connector.

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 Audio
Troubleshooting (cont'd)

CB output cannot be transmitted.

CONFIRM: Check that the TX indicator Yes ANTENNA: Check the antenna for
comes on when the TALK lever is depressed. continuity (see page 20-22).

~ No Good Good
.. Faulty antenna.
Good contact
• Go to "CB output can be
transmitted but CB signals
UNIT VOLTAGE: Remove the left fairing
cannot be modulated."
pocket (see page 13-8). Measure the voltage
No
between the WHT (+) and GRN/BLK (-) CB TRANSCEIVER UNIT: Substitute a
terminals of the CB transceiver 16P-GRY known-good CB transceiver unit and
connector with the connector connected. recheck.
There should be 7-11 V.

Yes
! Normal Abnormal
.. Faulty CB transceiver unit.
WIRINGICB SWITCH: Perform the same .. Faulty radio and cassette deck.
voltage check while operating the TALK lever.
There should be 0 V with the TALK lever
depressed.

No
.,
CB SWITCH: Check the TALK lever for No Continuity
I l'UlllIllUllY ~). .. Faulty CB switch.
I Continuity .. Open circuit in wire harness.
.. Loose or poor contact of connector.

CB output can be transmitted, but CB signals cannot be modulated.

WIRING: Perform the main wire harness check No Continuity
ID .. Open circuit in wire harness.
of the No.1 MIC. circuit (see page 20-21).
I
v Normal CB TRANSCEIVER UNIT: Substitute a
MICROPHONE: Check that th~ '"
I'-----w---,. known-good CB transceiver unit and
-·operly using the intercom. recheck.

Normal Abnormal
Abnormal
.. Faulty CB transceiver unit.
.. Faulty radio and cassette deck.
WIRING: Perform the radio and cassette deck No Continuity
1=- = - + .. Open circuit in wire harness.
main wire harness check of the No.2 headset
circuit (see page 20-18).

~ Continuity

-J
~;dAr~~h~~k~Ubs;;-tu-te--a-k-no-w-'I-n--g-O-~-h-ea-d-s-e-t N_o_r_m_a_I_.. .. Faulty headset.

Abnormal
l...-._, +&> .. Faulty radio and cassette deck.

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20..10
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 No reception or no radio and cassette sound.
NOTE
----~--"'-,-~,,,'~-------
e When the squelch control knob is turned all the way counterclockwise, the CB radio is most sensitive and the RX
indicator comes on, When the knob is turned clockwise, the background noise disappears and the RX indicator
goes out.
--------,-,,,,,-,,,,----------

CONFIRM: Turn the squelch control knob

counterclockwise and check that the RX No
~_---~ " Faulty CB transceiver.
indicator comes on.

RADIO AND CASSETTE DECK, Listen to th::J-- No sound

radio or cassette tape sound. I> e Faulty radio and cassette deck.
==u '"

!, Nor~~1
w

sound
,-
WIRING: Pertorm the main wire harness check No
of the No. 2AF circuit (see page 20-21).
continuity
" Open circuit in wire harness.
I
w
RADIO AND CASSETTE DECK: Connect the
ohmmeter (+) probe to the WHT/BLK terminal
No " Faulty radio and cassette deck.
of the CB transceiver 16P-GRY terminal and $>
the H probe to the PINK terminal. A click " Loose or poor contact of connector.
sound should be heard from the headset at the
moment the ohm rneter probes are connected.
":,,,'"

20..11
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 Audio
Troubleshooting (cont'd)

Comma.ulication distance is short

NOTE
m The CB signals may be affected by jamming or interference. Try using an open channel.
@ The CB signals are interfered with by mountains or buildings.

CONFIRM: Which distance is short, Transmission

transmission or reception? I--_~ + @ Go to "CB output cannot be transmitted"
(see page 20-10).
Reception

Too much noise or bad sensitivity.

NOTE
e The CB signals may be affected by jamming or interference. Try using an open channel.
e The CB signals are interfered with by mountains or buildings.

o good

r-
ANTENNA: Check the antenna for continuity - - - - - . @ FaUlty antenna.
(see page 20-22).
- - - ---------·
G O Od

ANTENNA GROUND PLATE: Check the Loose

antenna ground plate for looseness. e Loose antenna ground plate.

~ NO;;"~~ .,

CB TRANSCEIVER: Compare the sensitivity Same

with one of a known-good CB transceiver sensitivity
o Normal.
under the same conditions.

I Different sensitivity
" ilO e Faulty CB transceiver unit.

20...12
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 Radio/cassette sound does not mute during CB signal transmission or reception.
NOTE
, ,--,,-----,----------------------------------
@ The automatic switch-over will only function when the radio/cassette deck and the CB transceiver are in the same
listening mode (headset or speaker).
------,.,._-,,,,,

" ,~

MUTE SIGNAL: Remove the left fairing

No
pocket (see page 13-8). Measure the voltage .. Go to "CB output cannot be transmitted"
between the BLU (+) and GRN/BLK H (see page 20-10).
terminals of the CB transceiver 16P-GRY
connector with the connector connected.
There should be 4.8 V during transmission or
reception, and 0 V during other conditions.

I Yes

WIRING: Perform the main wire harness check No continuity

".,,"','" II!>".. Open circuit in wire harness.
of the NO.5 MUTE circuit (see page 20-21).
~,,,,,,,,,,

'T"'COntinuity ..
L:~ ~ ~~ . Loose or poor contact of connector.
.. Faulty radio and cassette deck.

CB output cannot be transmitted or CB signals cannot be modulated with the radio and
cassette deck turned OFF.
-
CB ON SIGNAL: Remove the left fairing pocket
(see page 13-8). Measure the voltage between
the YEL (+) and GRN/BLK H terminals of the No
CB transceiver 16P-GRY connector with the - . .. Faulty CB transceiver unit.
connector connected. There should be 4-8 V
with the CB transceiver turned ON, and 0 V
with the CB transceiver turned OFF.

~ Yes

WIRING: Perform the main wire harness check No continuity

of the NO.3 CB ON circuit (see page 20-21). ~ " Open circuit in wire harness.

r Continuity
=-....... .. Loose or poor contact of connector.
" Faulty radio and cassette deck.

20-13
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 Audio
Speaker
Removal
Front: Remove the instrument panel (see page 13-11).
Rear (SE only): Remove the trunk side pocket (see page
13-15, 16).
Remove the four screws and speaker.
Disconnect the speaker terminals and remove the
speaker.

Inspection
Connect an ohmmeter to the speaker terminals as
shown.

" Select the smallest range on the ohmmeter.

The speaker is normal if it clicks at the moment the ohm-

meter probes are connected to the speaker terminals.

Installation
Install the speaker in the reverse order of removal.
NOTE
-~,=~"'~",~,="'~,~.,-,,-"'~="" ,,-~~~-,,-

" Connect the RED/GRN wire (R ch) and BLU/GRN

wire (L ch) to the front speaker (+) terminals.
" Speaker terminals location is shown above.

Muting/Search Switch
Inspection
Remove the left fairing lower cover (see page 13-12).
Disconnect the 4P-BLK connector from the connector
holder on the left cooling fan.

Continuity should exist between the color coded wires as

indicated in chart below.
MUTINGI
SEARCH-
COLOR BLU/BLK GRN/BLK RED/BLK YEURED SWITCH
~,,=,==.m
~~'"

FREE 0- UP -0
"'~"~"'='~=" =."......
,=~

PUSH
FREE
LOCK
=""==,~ ==-"=~ ......"=,,

DOWN
MUTING
SEARCH
-~--~~""='~-"'''=''' ~""--"

20~14

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 CB Switch/Fader Control (SE only)
Remove the left fairing lower cover (see page 13-12).
C6 Switch - Talk/Channel Select Levers:
2P-Bll<
Disconnect the 4P-BRN connector from the connector

~~:~~O"
holder on the left cooling fan.
Disconnect the 2P-BLK connector.

Continuity should exist between the color coded wires as

indicated in the chart below.

COLOR WHT GRN ORN GRY

",," "'''

FREE UP 0-- ""--"0

",n",
--
PUSH o-~,- --0 FREE
fo--' ""'''' "",,,-

TALK
DOWN
-
......
'"
""
CHANNEL SELECT
"'''''''''= " " ..
"-'

Fader Control:
Disconnect the 6P-BLK connector from the connector
holder on tfie left cooling fan.

Turn the fader control knob counterclockwise fully and

measure the resistances between the terminals.
Standard Resistance:
REDNEl and BRNIWHT: 0 Q
BRNlWHT and BRN/BlK: 56·104 Q
BLUNEL and GRYIWHT: 0 Q
GRYIWHT and GRY/BLK: 56-104 Q
Turn the fader control knob clockwise fully and measure
the resistances between the terminals.
FADER
Standard Resistance: CONTROL
REDNEL and BRNlWHT: 56-104 Q I<NOB
BRNlWHT and BRNlBLK: 0 Q
BlUIYEl and GRYIWHT: 56-104 Q
GRYIWHT and GRYlBlK: 0 Q

20~15

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 Audio
Antenna
Antenna Removal
Loosen the lock nut and remove the antenna from the
antenna base.
Check the antenna for damage.

Inspection
Remove the seat (see page 13-8).
Disconnect the antenna connector and antenna ground
wire (GRN/BLK).
Check the antenna base for continuity, as shown.
Replace, if necessary.
Normal:
1: Continuity 3: Continuity
2: No Continuity 4: Continuity

Antenna Base Replacement

Remove the right trunk side pocket by removing the three
attaching screws.
SE only: Remove the left trunk side pocket to access the
CB transceiver antenna base.

lip~
11\' \

~Il' I

Release the antenna wires from the clamp. Remove the

bolts, clamp and antenna base from the trunk.
Install the antenna base and antenna in the reverse order
of removal.

ANTENNA
BASE

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 Radio and Cassette Deck
Main Wire Harness Check
Remove the top compartment (see page 13-9) and
disconnect the 18P-WHT connector, 6P-WHT connec-
tor, and antenna connector.
Check the connectors for loose or poor contact, or
corroded terminals.
Measure the continuity between the radio and cassette
deck connector terminals and other audio system termi-
nals in the charts that follow on pages 20-18 and 20-19.
A model
CAUT.,,;...IO_N
__
HARNESS SDDE CONNECTORS
c Do not damage connectors when measuring
eontinu ities.

SE model
HARNESS SDm:! CONNECTORS Viewed from terminal side
-
RADDO & CASSETTE DECK
FRONT RIGHT IGNITION
1 SPEAKER (t) 9 17 GND0
SWITCH ACC t
2 FRONT RIGHT 10 HEADSET MIC. 18 BACKUP(±)
SPEAKER (-) E (DR)
3 FRONT LEFT 11 HEADSET MIC. 19 STARTER REVERSE
SPEAKER (-) (PA) SWITCH (Comp Muting)
4 FRONT LEFT 12 HEADSEi"MIC. 20 DATA
SPEAKER (t) I~L_. __. _
5 HEADSET MIC. 13 HEADSET OUT 21 LOAD
E(PA) (R ch)
Viewed from terminal side MUTING HEADSET OUT.
6 14 22 CLOCK
____
~~. _____··,·.·.w...y ._ _" "_ _, ,
''''=
SWITCH ON (Lch)
RADIO & CASSETTE DECK 7 SEARCH 15 HEADSET OUT. E 23 GND(DATA)
----"""", SWITGH UP ... RADIO SWITCH E
1

2
RIGHT
SPEAKER (t)
RIGHT
12

13
HEADSET MIC.
fOR}
HEADSET OUT
23

24
GND0

MODE IN
., , -
8 SEARCH
SWITCH DOWN
._~'--
16 SPEED PULSE
... ...~ __
......- .
24 BLANKING

SPEAKER H (R chI .. ......-

" I model
3 LEFT 14 HEADSET OUT. 25 CBON HARNESS SIDE CONNECTORS
SPEAKER (-) (Lch)
-~

4 LEFT 15 HEADSET OUT. E 26 HEADSET AF OUT

SPEAKER (tl RADIO SWITCH E
,,""'"
HEADSET MIG. 16 27 GN (-) (MIC.)
5 E (PA) SPEED PULSE
MUTING STARTER REVERSE
-- Viewed from terminal side
6 17 GND0 28 .. ...
SWITCH ON SWITCH (Co~p Muti~g)
SEARCH
"'''
RADIO
7 18 BACKUP(±) 29 DATA
SWITCH UP -
...• FRONT RIGHT IGNITION
1 9 17 GND0
SEARCH SPEAKER (t) SWITCHACCt
S 19 MUTE ON 30 LOAD
SWITCH DOWN ._- 2 FRONT RIGHT
SPEAKER (-)
10 HEADSET MIC.
E(DR)
18 BACKUP(!)
9 IGNITION 20 31
SWITCH ACC t GNDAF CLOCK
-"-- 3 FRONT LEFT 11 HEADSET MIC. 19 STARTER REVERSE
SPEAKER (-) (PA) SWITCH (Comp Muting)
10 ~7t~)SET MIC. 21 SPEAKER AT OUT 32 GND (DATA)
E DR .~ 4 FRONTLE~ 12 ~E~DSET MIC. 20 AUX IN (R ch)
SPEAKER t
HEADSET MIG. 22 MIC.(-)IN 33 BLANKING
----
~._
11 (PA).. 5 HEADSET MIC. 13 HEADSET OUT 21 AUX IN (Lch)
E(PAI (R chI
6 MUTING 14 HEADSET OUT. 22 AUX IN E
SWITCH ON (Lch)

~ ~
7 15 HEADSET OUT. E
TUNING RADIO SWITCH E

rx >< ~ ~ '--
8 CHANNEU
MEMORY

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 Audio
Radio and Cassette Deck (cont'd)
~"-,"" m~r-m,,_" ,,-
Other
Circuit Terminal
Number System Terminal Color Other terminal/location
Color
'" "

Spe aker
circu it
1 RED/GRN .....--- Speaker (+) terminal/Front right speaker
2 BRN/BLK • Speaker (-) terminal/Front right speaker
(A & I
mod els)

""_",,,,,
3
4
m
GRV/BLK
BLUlGRN
''''_0

."
.~
Speaker (-) terminal/Front left speaker
Speaker (+) terminal/Front left speaker
Spe aker 1 RED/GRN REDNEl 6P-BLK mini/On the left cooling fan
circu it
VEL Speaker (+) terminal/Right rear speaker
(SE model)
2 BRN/BLK
"'-F-"

.--- Speaker H
""

terminal/Right front speaker

6P-BLK mini/On the left cooling fan
,,~

'* ---'--"'"
3 GRV/BLK Speaker (-) terminal/Left front speaker
'*
F-m
,*- 6P-BLK mini/On the left cooling fan
'''--~''''

4 BLU/GRN BLUNEL 6P-BLK mini/On the left cooling fan

'" ,-
" ,_ _ _=n
VEL Speaker (+) terminal/Left rear speaker
2 Headset 5 BLK (sealed) BLK 6P-RED mini/On the rear fender
"'" ""

10 BLK (sealed) (I: BLU) 6P-RED mini/Inside the fairing (left pocket)
,,-- "n"

11 RED/BLU 6P-RED mini/On the rear fender

'* m ''''''

12 WHT "i! 6P-RED mini/Inside the fairing (left pocket)

,,-

.
..--
"n"

13 VEL . "= 6P-RED mini/Inside the fairing (left pocket)

6P-RED mini/On the rear fender
"

14 LT GRN/RED 6P-RED mini/Inside the fairing (left pocket)

'* '''_m""

"i! 6P-RED mini/On the rear fender

"'"

15 GRN/BLK .~ 6P-RED mini/Inside the fairing (left pocket)

"i! 6P-RED mini/On the rear fender
'"

3 Muting/
sea rch
6 BLU/BLK
"
• 4P-BLK mini/On the left cooling fan
7 RED/BLK "i!
swit ch ,-,,-
"""---~
circ uit 8 VEURED d

15 GRN/BLK
- ~
_ _ "~,m_",
"'''--''''- "-'~
4 Pow er 9 LT GRN/BLK 1OP-WHT/Under the instrument (A & SE only)
'*
circ uit
_ ...
'*
""
8P-BLKlOn the left cooling fan

5 A& SE:
18
1---'
17
"

20 (SE:29)
REDNEL
GRN
RED
..-"
RED 8P-BLKlOn the left cooling fan
Body ground
"n'

14P-BLKlUnder the instrument

Dis play
21 (SE:29) WHT +---
(LC D unit) "",n

circ uit 22 (SE:33) BLK

'*4

,,---- F---'"
23 (SE:32)
24 (SE:33)
BLK (sealed)
GRV
,,-- - "
..
""''''

I: 20
1---"
BLU/GRN '*".
'" ,
3P-WHT/lnside the fairing (left pocket)
AU X BLUNEL
21 IilII
eirc uit 1----" '"

22 BLK (sealed) 4
" ,,---'-- " ' - - - - , - " ",,,,nn,,

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 Radio and Cassette Deck (oont'd) -=~~==-======-===-
=","~--
-Other
Circuit
Number System Terminal Color Terminal Other terminalllocation
Color
-"-"-'=
""
6 A & SE only: 16 WHT/BLK >'l!III 14P-BLKlUnder the instrument

7
AVC circuit
--,,,,,,,=,

Starter/
reverse
(I: Starter)
19 (SE:28) YEURED
"
.. 9P-RED mini/On the right cooling fan

switch
circuit
8 Antenna Check the wires for continuity
circuit as shown.

NORMAL: 2
1. Continuity
2. Continuity
3. No Continuity

''''''

9 CB 19 BLU 16P-GRY/CB transceiver unit

transceiver
20 PINK
'*
circuit
(SE only) 21
'*
BLK >'l!III

22 RED/BLU >'l!III

23 GRN/BLK >'l!III

24 BRN >'l!III

25 YEL
'*
26 WHT/BLK >'l!III
-
27 Sealed wire iI\\1
'-'--

20~19

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 Audio
Radio and Cassette Deck (cont'd)
Headset Junction Wire Check
Remove the headset junction wires.
Check continuity between the same-number junction
wire connectors as shown. Continuity should exist.

Headset junction wire (rider or passenger)

1 microphone signal INPUT
2 microphone signal ground
3 headset OUTPUT ground
4 headset OUTPUT (R channel)
5 headset OUTPUT (L channel)
\/\fIRE HARNESS

CAUTION
.. At installation, route the radio/cassette deck
wire harness properly as shown.
--~-"""--" -"-"~'---

AIR
CLEANER
CASE

If no sound is heard when the "AUX" position is selected,

check the AUX sub-cord for continuity. There should
be continuity between the same-number terminals as
shown.

or 2
3
AUX INPUT (R channel)
AUX INPUT (L channel)
AUX INPUT ground
-''''''~''
]

20..20
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 CB Transceiver
Main Wire Harness Check
Remove the left fairing pocket (see page 13-8) and CB TRANSCEIVER UNIT
disconnect the 16P-GRY connector, 1P-WHT connector
and antenna wire connector.
Check the connectors for loose or poor contact, or
corroded terminals.
Measure the continuity between the CB transceiver
connector terminals and other audio system terminals in
the chart below and on 20-22.
~-~'-----'--'

1'--
C8 TRANSCEIVER I
16P-GRV COI\UI,IECTOR
1 GROUND (MIC) 9 MUTE OUT _._-~-

2 HEADSET AT OUT 10 TALK

3 CBON 11 CHANNEL UP
...
, ""

4 MODE IN 12 CHANNEL UP-DOWN

m,,,,, .. - CONTROL
"m=

5 GROUND 13 ACC
"""'''''' -_.. _---
6 MICIN 14 BACK-UP
7 SPEAKER AT OUT 15 STARTER/REVERSE
SWITCH
"'==='"

l -___ 8 GROUNDAF .~

Circuit Other
Number System Terminal Color Terminal Other Terminal/location
Color
--
1 MIC 1 Sealed wire '011I 12P-WHT/Radio & cassette deck
circuit
6 RED/BLU
.._.
'011I
m"......'

2 AF circuit 2 WHT/BLK <@

7 BLK '011I
,-=........................,,"'...""''''''

8 PINK '011I
..
3 CB ON circuit 3 YEL <@ ~

4 MODE circuit 4 BRN liI

5 Ground circuit 5 GRN/BLK liI

6 MUTE circuit 9 BLU '011I

7 CB switch 10 WHT <@ 4P-BRN mini/On the left cooling fan

circuit --
11 ORN ~--

12 GRY '011I
,,=,,~_.

-
8 Power circuit 13 LT GRN/BLK '011I 8P-BLKlOn the left cooling fan
<0

14 REDIYEL
_. RED
9 Starterlreverse 15 YEURED '011I 9p-RED mini/On the right cooling fan
switch circuit
'------_.-

20..21
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 Audio
CB Transceiver (cont'd) ------~---------------

Circuit Other
Number System Terminal Color Terminal Other Terminaillocation
Color
10 Antenna circuit Check the wire for continuity
as shown.

NORMAL:
1: Continuity
2: Continuity
3: No continuity

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 Index

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 Index
Adjustable Passenger Footrests (SE) . . . . . . . .. 13-20 Crankcase Breather 3-19
Air Cleaner 3-18 Crankcase Separation. . . . . . . . . . . . . . . . . . . . . .. 10-9
Air Cleaner Housing 4-18 Crankpin Bearing .. . . . . . . . . . . . . . . . . . . . . . . . .. 8-21
Air Drier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-34 Crankshaft Installation 8-30
Air Pump Element 3-33 Crankshaft Removal 8-27
Air System Circuit Diagram 4-45 Cruise Control 4-61
Alternator and Regulator/Rectifier . . . . . . .. 17-1 0 Cruise Valve Element 3-35
Alternator Drive/Driven Gears 17-19 Cylinder Compression 3-21
Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 20-6 Cylinder Head Assembly 7-17
Auto Fuel Valve 4-16 Cylinder Head Disassembly " 7-11
AUX Sub-Cord 20-14 Cylinder Head Removal 7-10
Battery " 3-25, 17-7 Diodes. . . . . . . . . . . . . . . . . . . . . . . . . . . .. 18-28,18-51
Brake Disc Inspection 14-11 Drive Shaft 11-4
Brake Fluid 3-26 Emission Control Information Labels 1-8
Brake Fluid Replacement/Air Bleeding .. . . . . . .. 14-5 Emission Control Systems 1-5
Brake Light Switches 3-28,19-23 Engine Coolant Temperature Sensor 16-15
Brake Pad Replacement . . . . . . . . . . . . . . . . . . . .. 14-7 Engine Control Module 4-46, 16-7
Brake Pad Wear . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-26 Engine Installation 6-6
Brake Pedal 14-23 Engine Oil & Filter Change . . . . . . . . . . . . . . . . . .. 3-13
Brake System . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-27 Engine Oil Level . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-13
Camshaft Hold Disassembly 7-8 Engine Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . .. 6-4
Camshaft Holder Assembly/Installation 7-19 Engine Stop Switch . . . . . . . . . . . . . . . .. 16-16
Camshaft/Rocker Arm Removal 7-6 Evaporative Emission Control System
Carburetor Air Jet Control System 4-50 (California Model Only) 3-24, 4-59
Carburetor Assembly . . . . . . . . . . . . . . . . . . . . . . .. 4-26 Evaporative Emission Control System 3-24
Carburetor Choke 3-17 Exhaust/Pipe Muffler 7-28
Carburetor Disassembly 4-23 Fairing 13-6
Carburetor Idle Speed . . . . . . . . . . . . . . . . . . . . . .. 3-21 Final Drive Oil 3-15
Carburetor Installation 4-36 Footrests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 13-22
Carburetor Removal 4-19 Fork Legs , 12-11
Carburetor Separation 4-21 Front Brake Caliper 14-19
Carburetor Synchronization 3-20 Front Engine Cover Installation 8-32
Carburetor Tubes/Hoses. . . . . . . . . . . . . . . . . . . .. 4-34 Front Engine Cover Removal 8-5
CB Switch/Fader Control 20-15 Front Fender 13-18
CB Transceiver 20-21 Front Master Cylinder 14-12
Charging System Output 17-9 Front Wheel 15-5
Clutch 9-10 Fuel Filter 4-17
Clutch Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-29 Fuel Level Sensor/Gauge . . . . . . . . . . . . . . . . . . .. 4-44
Clutch Fluid Replacement/Air Bleeding 9-5 Fuel Line 3-16
Clutch Master Cylinder 9-6 Fuel Pump Shut-Off (Bank Angle Sensor) 18-25
Clutch Slave Cylinder 9-9 Fuel Pump/Relay . . . . . . . . . . . . . . . . . . . . . . . . . .. 4-40
Clutch Switch 18-30 Fuel Reserve Sensor/Indicator 4-43
Clutch System 3-29 Fuel Tank 4-15
Coolant Replacement 5-8 Gear Case Assembly 11-14
Coolant Temperature Sensor/Gauge 5-17 Gear Case Disassembly 11-6
Cooling Fan 5-11 Gear Case Installation 11-17
Cooling System 3-23 Gear Case Removal 11-4
Cooling System Inspection & Testing 5-7 Gearshift Linkage 10-6
Cornering Light (SE) 19-30 Gearshift Sensor 6-13
Crankcase Assembly . . . . . . . . . . . . . . . . . . . . . .. 10-18 Handlebar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 12-37

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 Index
Hazard Relay 19-28 Reverse Control Unit 18-39
Headlight Aim 3-28 Reverse Level Switch . . . . . . . . . . . . . . . . . . . . .. 18-44
Headlight/Position Lights 19-12 Reverse Operation 3-30
High Mount Accessory Light (SE) 19-29 Reverse Relay Switch 18-27
Horn , 19-28 Reverse Resistor Assembly 18-42
Hydraulic Valve Adjuster Shim Selection 7-24 Reverse Switch 18-28
Ignition Coil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 16-8 Reverse System 18-30
Ignition Pulse Generator 16-10 Scavenging Pump 8-10
Ignition Switch 19-20 Self Canceling Turn Signal System 19-25
Ignition Timing 16-17 Service Safety 1-2
Instruments 19-16 Shock Absorbers . . . . . . . . . . . . . . . . . . . . . . . . .. 12-20
Intake Air Shot Air System 4-47 Side Stand 3-31
Intake Air Temperature System 4-53 Side Stand Switch . . . . . . . . . . . . . . . . . . . . . . . .. 16-14
Intake Manifold 4-37 Spark Plugs 3-19
Left Handlebar Switches 19-22 Speaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 20-14
License/Accessory Light 19-15 Speed Limiter Relay 18-44
Lubrication Points 3-3 Standard/Service Limits . . . . . . . . . . . . . . . . . . . . .. 2-4
Main Journal Bearing 8-28
Starter Clutch 18-22
Maintenance Schedule. . . . . . . . . . . . . . . . . . . . .. 3-12
Starter Drive Gear . . . . . . . . . . . . . . . . . . . . . . . .. 18-52
Metal Brake Line 14-24
Starter Motor 18-49
Metric Conversions . . . . . . . . . . . . . . . . . . . . . . . . .. 1-9
Starter Relay Regulator 18-41
Model Identification . . . . . . . . . . . . . . . . . . . . . . . . .. 1-4
Starter Relay Switch A 18-26
Muting/Search Switch 20-14
Starter Relay Switch B 18-26
N.P.S. Part Number 1-10
Starter/Reverse Motor 18-13
Nuts, Bolts, Fasteners 3-35
Starter/Reverse Switch. . . . . . . . . . . . . . . . . . . .. 18-29
Oil Pressure Check . . . . . . . . . . . . . . . . . . . . . . . .. 3-14
Starting Enrichment Valve 3-17
Oil Pressure Switch. . . . . . . . . . . . . . . . . . . . . . .. 19-23
Steering Head Bearings , 3-37
Oil Strainer & Main Oil Pump 8-14
Steering Stem 12-41
On-Board Ai r Compressor System . . . . . . . . . .. 12-31
Suspension , 3-31
Output Shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 10-25
Parking Diode 19-24 Swing Arm 12-26
Pilot Screw Adjustment 4-39 Thermostat, Thermo Valve, Water Lines 5-13
Piston/Connecting Rod Installation 8-23 Thermostatic Fan Motor Switch 5-18
Piston/Connecting Rod Removal 8-17 Throttle Operation , 3-16
Power Control Relay. . . . . . . . . . . . . . . . . . . . . .. 18-43 Timing Belt Installation " , 7-22
Primary Drive/Driven Gears. . . . . . . . . . . . . . . .. 10-22 Timing Belt Removal. . . . . . . . . . . . . . . . . . . . . . . .. 7-4
Pulse Secondary Air Injection Tools '" , 1-11
System 3"24, 4-55 Torque Values 2-8
Radiator 5-9 Transmission Assembly 10-14
Radiator Coolant 3-22 Transmission Disassembly 10-10
Radiator Reserve Tank. . . . . . . . . . . . . . . . . . . . .. 5-12 Transmission Inspection 10-12
Radio & Cassette Deck 20-17 Trunk/Saddlebags . . . . . . . . . . . . . . . . . . . . . . . .. 13-14
Rear Brake Caliper 14-21 Turn Signals/Brake Lights 19-13
Rear Case Cover Installation 8-33 Universal Joint , 11-5
Rear Case Cover Removal 8-6 Valve Guide Replacement , 7-13
Rear Fender . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 13-19 Valve Seat Inspection/Refacing 7-14
Rear Master Cylinder 14-14 Water Pump 5-15
Rear Wheel 15-10 Wheel Balancing 15-20
Relay Box (Starter/Reverse) 18-21 WheelslTires 3-36
Relay Box (Lights/Switches/Instruments) 19-24 Windshield 13-3

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 Contents Asp and 51::: Int

How To Use This Manual 1-1 1-1

Troubleshooting Hints 1-10 1-10
Fuse Information 1-16 1-17
LCD Unit Display 1-18
Circuit Schematics (see Circuit Index)
Component Location Index 11-0 11-0
Component Location Photographs 12-0 12-0
Component Index 13-0 13-0

Circuit Index
Accessory Lights 9-19
Automatic Level Control 5-4
Brake Lights 9-16 9-17
CB Radio (Asp) 10-20
CB Radio (SE) 10-24
CB Radio (Int) 10-22
Charging System 3-26 3-26
Clock 5-2 10-6
Cornering Lights 9-3 9-4
Cruise Control 4-0
Engine Control System 3-0 3-4
Gauges 7-4 7-8
Ground Distribution 2-10 2-16
Handlebar Switch Illumination 9-5
Hazard Lights 9-6 9-8
Headlights 8-0 8-2
Horn 5-0 5-1
Illumination Lights 7-5 7-9
Indicators 7-0 7-2
Instrument Panel 7-4 7-8
License Plate Light 9-12 9-14
Low Fuel Warning 6-0
Marker Lights
Fairing and Trunk 9-0 9-0
Saddlebags 9-2
Oil Pressure Warning 6-0 6-1
Parking Lights 9-12 9-14
Position Lights 9-6 9-8
Power Distribution 2-0 2-6
Radiator Fans 3-28 3-28
Radio 10-6
Radio and Cassette 10-0
Reverse System 3-30
Speed Sensor Circuit 7-6 7-7
Spoiler BrakefTaillight
SE Model only 9-20
Starting System 3-14 3-16
Taillights 9-12 9-14
Trunk Light 9-18 9-18
Turn Signal Lights 9-6 9-8

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 How Use This anual
Page Numbering System

This manual divides the electrical system into individual sections. For example, Section 5
includes all Chassis Accessories. Component Location photographs are at the back of the
manual in Section 12.

Within a section, the pages are numbered using the section number, a dash, and then a
consecutive number beginning with zero. So if there are three pages in Section 2, the
pages will be numbered 2-0, 2-1, and 2-2.

Outline of Each Circuit Section

A Circuit Schem~tlc (wiring diagram) starts off each section. Schematics show:
~ how all the components within a circuit work together
~ current flow from the power source (top of page) to ground (bottom of page)
~ switch positions (shown "at rest" as if the ignition was off)
~ special instructions ("Solid-state: Do not check resistance")

~ those circuits sharing a common power source or ground

A System Description (How the Circuit Works) appears in some sections;

it explains basic circuit operation.

A Troubleshooting guide also appears in some sections and provides step-by-step

instructions for diagnosis and repair. It includes symptom and diagnosis charts and sel1-
tests for all possible measurements in the system.

Model Abbrevl~tlons for 1994 used In this manual:

Int - Interstate
Asp - Aspencade
SE - Special Edition

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 How To Use This Manual
Symbols
The abbreviations and symbols explained here
A broken line means only
are used throughout the manual. You'll need to some of the circuit is shown;
know what they mean before you can use the refer to the circuit listed for
the complete schematic.
schematics effectively.

Wire Color Abbreviations See Ground

Distribution,
page 2-10.

The following abbreviations are used to identify ~Gl00

wire colors in the circuit schematics:

BLK black
BLU blue Wire choices for options or
BRN brown different models are labeled
and shown with a "choice"
GRN green bracket like this.
GRY gray ORNl

I
LT BLU light blue Without With
Rear Speaker Rear Speaker
LT GRN " light green
ORN orange

I
C309 C310
PNK............................ pink
ORN ORN
RED red
WHT white
YEL yellow

Wires
A wavy line means the wire is Where separate wires join,
HOT AT All TIMES I
BlK ===,.,
broken by the binding of the
book but continues on the
s only the splice is shown; for
details on the additional BACK UP
FUSE/
I RELAY
next page. Wiring, refer to the circuits FUSE I BOX
listed.
SA
===J
Wire insulation can be one
color, or one color with YELJRED

another color stripe; the

second color is the stripe. Instrument Panel, S102
CB Transceiver

This means the current path

continues on another page.
The arrow shows direction of
current flow. To follow the WHT
To S285
white wire in this example, on page 9-11 .
you would turn to page 9-11
and look for the "R" arrow. This dashed line means the
BLU/RED and RED/BLU wires
are both in connector C134. RED/BlU

This means the branch of the C134

wire connects to another circuit.
The arrow points to the name of
the circuit branch where the BlU/RED RED/BlU
wire continues.
Name of Circuit

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 Splices - "S" Components
Splices (S) are numbered and
shown as a dot. The location
and connection of these
BLK BLK I
_WIIIIIIIWIIIIIIIWIIIIIII. S218
A solid border line means the
entire component is shown.
splices may vary depending
on the harness manufacturer. BLK I
A broken border line indicates 11"='
that only part of the component I I
Connectors - "C" I I

V·
is shown.
Female b..=dI
Each connector (C) is oem
numbered for reference in the ,
Component location Index,
Section 11.

"
Male The name of the component
Connector BRAKE
appears next to its upper SWITCH
right corner. Closed with
The index also lists the total
pedal depressed.
number of cavities and the
color of the connector. Wires Notes about component
function follow its name.
may not be used in all cavities.

Ground .- "G"

Empty This symbol means the end of

Cavity the wire is attached to a metal
part of the motorcycle.

This means the connector

Each wire ground (G) is
numbered for reference in the
~I -.@. G101
connects directly to the
component. Component location Index,
Section 11.

This indicates the connector

connects to a lead (pigtail)
This ground symbol (dot
wired directly to the
and 3 lines) overlapping the
component.
component means the housing
of the component is attached
directly to a metal part of the
This indicates a screw motorcycle.
terminal on the component. - - - - - - - - - . . .

(cont'd)

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 How To Use This Manual
Symbols (cont'd)

These switches move together; This means power is supplied

a dashed line shows a mechanical when the ignition switch is in ON.
connection between them.

~
r=r:==~
I I

-\I -
fUSEe

L ". ~
'OontH,eotio"
GRN/BLK \

Current rating
This is a relay shown with
no current flowing through
its coil. Unless otherwise
noted, all switches are shown
in their normal (rest) position,
with power off.
! \
Normally Open
Closed
Contact
This diode allows current to flow
only in the direction of the arrow.

Shield

This represents RFI (Radio

Frequency Interference)
shielding around a wire.
The shielding is always -~
I
connected to ground.
! ~Gl03
... ........-::J
I
I

1..4

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 How To Use This Manual
Circuit Schematic (cont'd) .------_.. . . . .- -_._---«<<<<------- - - -

Circuit schematics break the entire electrical system Wires that connect to another circuit are shown with
into individual circuits. Electrical components that an arrowhead pointing in the direction of current
work together are shown together so that you are flow. The name of the circuit or component that
not distracted by wiring that is not part of the circuit shares the wiring is provided for reference. You can
you are working on. check shared wiring by checking the operation of
the other circuits.
Each drawing is arranged so current flows from pos-
itive, at the top of the page, to ground, at the bottom "See Power Distribution" means there are more con-
of the page. The "HOT" label at the top of a fuse nections to other circuits that are not shown, All such
shows when the ignition switch supplies power to shared circuits are shown on the Power Distribution
that fuse. circuit schematic. "See Ground Distribution" means
there are more shared ground circuits which are
Each circuit is shown completely and independent- shown on the Ground Distribution schematic.
lyon one schematic. Other circuits getting their
power from the same point, or grounding at the
same point, are not shown. However, if other circuits
actually share some wires with the circuit shown, the
shared wires of the other circuits will also be shown.

[ HOT IN -oN] C'-HOTAT'ALLTiM'ES]

r-;:;o=~·~··~~~---·~·~~-~- ~-~-~-~-~ ~~~~
I Distribution, ~-""@ 5105 U BOX
I page 2-2. I
I ~ I
I BLKlWHT <:!) I
I HORN/ I
I TURN
RELAY
I
I , ,...."""",,,,,,,,,,,,,,,,,,,,,,,,,,,,'it...,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,dl
I See Ground m WHT/GRN ii-
I Distribution, ~_1!!EII S109 U H See Power Distribution,
page 2-12. I H page 2-2.
I GRN """'" J 5110 ®
N
WHT/GRN """"",WH1/Gl)N .. ll- Turn Signal Cancel
- - Control Unit
WHT/GRN

""""'''''''''''''''''''-' LEFT
~~~T~H I ~~~~~ATION
I
"""'" """'" """",.A

LT GRN
LT GRN LTGRN

5201
LEFT RIGHT
HORN HORN

-----®0..P----
See Ground
Distribution,
page 2-12.
GRN 5167

GRN ""'--~ See Ground

GRN Distribution,
5168 EII ............ _-"""""o4!<i1! page 2-11.

GRN
•
I Gl00

1..6
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 The sample Power Distribution schematic shows how voltage is supplied from the positive battery terminal to the
various circuits in the motorcycle.

Individual circuit schematics begin with a fuse. Power Distribution shows the wiring between the battery and the
fuses. By combining Power Distribution with any individual schematic, you get a complete picture of how voltage
is applied to the circuit.

You can use Power Distribution to speed your troubleshooting. If Power Distribution shows that an inoperative
circuit and a second circuit share a fuse, check the operation of the second circuit. If it works, you know the fuse is
good and voltage is available to the inoperative circuit. You can then continue troubleshooting.

~~~~~~~~;;;;~~=====W=H=T=-::~~~~~~===:::::::~@
II BLK Starting
WHT)
.~- ~ 5251 System MAIN WHT
YEURED FUSE B
BATTERY 55A
FU~:': Page 3-12 F = "\I
30A I I
b=..II
ALTERNATOR
Page 3-12
RED
See Ground

I Distribution,
page 2-10.
•
Starting System C58
~ R
.Gl00
RED r= E ! A t r - = = = = = = = = , IGNITION
5WITCH
I LOCK
I --P
I
~= ~==
E _ _ LOQ!S..,

ON
ACC
OFF
~======~~
--
p.nt
OFF
_Ql:L
f'
ACC
...l..0QS _ ON

~
P ......
ACC
~J
1
II
LT GRN/BLK _ _Y~~ ~LK BLU/ORN
YEUBLK C58

LT GRN!BLK BLK BLU/ORN

I
To FUSE/RELAY BOX on
page 2-4

r~~@====~~/BL~='~lli
I ~l~RN! G) 61} I BOX
I ACC
TERMINAL
ACC
FUSE
II
I FUSE lOA
REDiYEL
I';A I
I ~~~~~Jl~RY LT GRN!BLK I
===== I

II
LT GRN!BLK To FUSE!
Cl0 RELAY BOX
LT GRN BLK F '11 PUMP I on page 2-2.

I I Coil I RELAY
C88 LT GRN/BLK
F = '11 HAZARD Page I
I ~'tJ.~ER LT~:" £~ ==!
Ib = ..II Page 9-7 GRN/ LT GRN/ Cl03

i
REDiYEL
,,- --"'0 5101 1P'::;mr:::dlliW;;~@~@LTGRN
5103 C73 i5278 LT AIR PRESSURE
LT GRN/BLK LT GRN!BLK m CONTROL
RED/YEL
RED!
~~E::IIiIm~
ill!'
C66
LT GRN/BLK I=
J ~~~1'i.~LY
Page 5-4
VEL C91 LT GRN/BLK
C89 5102 iD (@E=:::m~a~i!I Wi!lw::=~:tE21111111 5104 iD
RED/YEL LTGRN!
GRN BLK
REDiYEL Cl07
LTGRN/BLK

\
- , TRUNK
D LIGHT 5-2
= =-
7-6
'= . - _

5-2
'=' .=
f"7_6
=-.,
1 I
INSTRUMENT
PANEL
"""'" Page 9-18
II I Ignition I I I
Input..
II~<x="=,==_=.=.~d
LCD UNIT
I~d I
WHEEL

L=====._=.~~~E~~J
(ccmt'd)
-----._-----_._-~~--------_._-----------------------'

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 How To Use This Manual
Circuit Schematic (cont'd)
The sample Ground Distribution schematic shows which components share the same ground point.

==.., RELIEF ==.., REAR ==.., ==.., TURN

I I VALVE
SOLENOID I I SOLENOID I
CRUISE
I UNIT I I SIGNAL

,",'"
SUSPENSION CONTROL
I I Page 5-5 I I VALVE I I Page 4-3 IL
SWITCH
Pages 9-5,
L ...I 9-6
G~r
= L==
C135

..----®-----IIIIIIIIIIIII
GRN

5164
==.., BANK =, =.., REVERSE GRN GRN
I I ANGLE CONTROL
II UNIT
I I
SENSOR
I ==.., RIGHT
L =
Pages 3-8
and 3-12
1 Page 3-14 I I LIGHT
CORNERING
GRN
G:'=;;;2
Cl04 IL==I RELAY
Page 9-3
CRUISE
CONTROL
Cll GRN SWITCH
C70 GRN ILLUMINA-
h _ _mGiiijRmN_ _ ®jS1i1ii6m5 d TION
(SE Only)
Page 9-5
GRN
LEFT
r=="'ll
W/OCSRADIO
C33 COR·
NERING I I
W/CS RADIO
===, FUEL
r =="11 FUEL
I PUMP
LIGHT
RELAY I
I
I
I
II I Page I J Page 3-2 Page 9-3
PUMP
3-2
~=C127
RIGHT
HORN
Page 5-0 r=l b. J
r = . . , ENGINE

I CONTROL
MODULE
=J GRN
IL ...I
IL (ECM) COO C94
J
C49
Page 3-0

=,IN·L1NE RIGHT
GRN
I
gAPACITOR (
"""""
COR·
'\ NERING C57
GRN J LIGHT
'" Page 9-3 GRN GRN GRN
GRN

C183 (Asp or Inl) SE GRN

MODELS

Ti-r--r-T1
C17B (SE) CG9
ONLY
GRN

----- C191

f'F----- --~--f---1
IL-.__ __-.J -- I

l=========================== ===== ===J

C191
From 8157
on following page.

.._----®--
GRN

G,t",
GRN GRN

C22
IIIII

I G"
GRN

I
GRN Cl15
Sl68 ® ( From C55
on page 2-14.
GRN

G"

- - - - - - ----- - - - - - - - - - - --e- Gl00 (PARTIAL)

-e- Gl02

._-~------~-----------------

1..8
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 The Component Location Index (Section 11) lists every component, connector, and ground and
describes its location on the motorcycle. This index also gives references to component location
photographs which are found in Section 12.

Component Location Photographs (Section 12) show the exact location and appearance of
components, connectors, and grounds.

The Component Index (Section 13) lists all components and gives page references to all circuit
schematics in which each component appears.

Component Location Index (Section 11)

(Refer to Section 12 for photographs.)
~_omponent Ph~t«?~o.
Auxiliary Input Connector 55
Behind left fairing pocket
Bank Angle Sensor (Asp, SE) 32
Component or Below right rear of seat,
Connector Number ~ on frame rail

., ~3mBl~~~~t~~~~~t~~~'~I' 45",
Num b er 0 f CaVltles ~
Photo
In Connector 0 (22-BlU) (SE) 38
Number
Behind left rear of seat
in Section 11
Connector Color C10 (22 WHT) (Asp)
m
38
Below left rear of seat

Component Index (Section 13)

Ace Fuse 10A
Asp and SE 2-0,5-2,5-4,7-6,9-7,
10-0,10-6,10-15
Int . 2-6, 5-4, 9-9, 10-8
Acc Terminal Fuse 5A
Asp and SE . 2-0
Int . 2-6
Accessory Terminal
Asp and SE . 2-0,2-12
Int . 2-6,2-17
Air Pressure Control
Switch Assembly 2-0,2-4,5-4,5-5
Air Pressure Sensor 5-4
Air Pump Assembly 2-14, 5-5
Air Pump Fuse iDA . . . . . . . . . . . . . . . . . . . . . .. 2-1, 5-4
Air Pump Relay 2-0, 2-1, 5-4

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 How To Use This Manual
FivewStep Troubleshooting Test EqUipment
1. Verify The Complaint Voltmeter and Test light
Turn on all the components in the problem cir- CAUTION: A number of circuits include solid-
cuit to check the accuracy of the customer state devices. Voltages in these circuits should
complaint. Note the symptoms. Do not begin be tested only with a 1O-megohm 01" higher im-
disassembly ortesting until you have narrowed pedance digital multi meter. Never use a test
down the problem area. light on circuits that contain solid-state de-
vices. Damage to the devices may result.
2. Analyze The Schematic
On circuits without solid-state devices, use a test
Look up the schematic for the problem circuit. light to check for voltage. A test light is made up of
Determine how the circuit is supposed to work a 12-volt bulb with a pair of leads attached. After
by tracing the current paths from the power grounding one lead, touch the other lead to vari-
source through the circuit components to ous points along the circuit where voltage should
ground. Also trace circuits that share wiring be present. The bulb will go on if there is voltage at
with the problem circuit. The names of circuits the point being tested.
that share the same fuse, ground, or switch,
and so on, are referred to on each circuit sche- A voltmeter can be used in place of a test light.
matic. Try to operate any shared circuits you While a test light shows whether or not voltage is
didn't check in step 1. If the shared circuits present, a voltmeter indicates how much voltage
work, the shared wiring is OK, and the cause there is.
must be in the wiring used only by the problem
circuit. If several circuits fail at the same time, Self-Powered Test light and Ohmmeter
the fuse or ground is a likely cause.
CAUTION: Never use a self-powered test light
Based on the symptoms and your understand- on circuits that contain solid-state devices.
ing of the circuit's operation, identify one or Damage to these devices may result.
more possible causes of the problem.
Diodes and solid-state devices in a circuit can
3. Isolate The Problem By Testing The Circuit make an ohmmeter give a false reading. To find
out if a component is affecting a measurement,
Make circuit tests to check the diagnosis you take one reading, reverse the leads, and take a se-
made in step 2. Keep in mind that a logical, sim- cond reading. If the readings differ, the compo-
ple procedure is the key to efficient trouble- nent is affecting the measurement.
shooting. Test for the most likely cause offailure
first. Try to make tests at points that are easily An ohmmeter can be used in place of a self-pow-
accessible. ered test light. The ohmmeter shows how much
resistance there is between two points along a cir-
4. Fix The Problem cuit. Low resistance means good continuity.

Once the specific problem is identified, make

the repair. Be sure to use proper tools and safe
procedures.

5. Make Sure The Circuit Works

Turn on all components in the repaired circuit in

all modes to make sure you've fixed the entire
problem. If the problem was a blown fuse, be
sure to test all of the circuits on that fuse. Make
sure no new problems turn up and the original
problem does not recur.
Self-Powered Test Light

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 Troubleshooting Tests
Circuits that contain solid-state devices should Testing for Voltage
only be tested with a 1O-megohm or higher imped-
ance digital multimeter.
This test measures voltage in a circuit. When test-
ing for voltage at a connector, you do not have to
Use a self-powered test light to check for continu- separate the two halves of the connector. Instead,
ity. This tool is made up of a light bulb, battery and probe the connector from the back. Always check
two leads. If the leads are touched together, the both sides of the connector because dirt and cor-
bulb will go on. rosion between its contact surfaces can cause
electrical problems.
A self-powered test light is only used on an unpow-
ered circuit. First disconnect the battery or remove 1. Connect one lead of test light to a known good
the fuse that feeds the circuit you are working on. ground, or if you are using a voltmeter, be sure
Select two points along the circuit through which you connect its negative lead to ground.
there should be continuity. Connect one lead of the
self-powered test light to each point. If there is con-
2. Connect the other lead of the test light or volt-
tinuity, the test light's circuit will be completed and
meter to the point you want to check.
the bulb will go on.

3. If the test light glows, there is voltage present. If

Jumper Wire
you are using a voltmeter, note the voltage
reading. It should be within one volt of mea-
Use a jumper wire to bypass an open circuit. A sured battery voltage. A loss of more than one
jumper wire is made up of an in-line fuse holder volt indicates a problem.
connected to a set of test leads. It should have a
five ampere fuse. Never use a jumper wire across
any load. This direct battery short will blow the
fuse.

CHaT AT ALL TIMES I

FUSE/
RELAY
BOX

//
-_ .... -- .....
ON

./
/
/
Short Finder I
I OFF
I - - - - ........
Short finders are available to locate shorts to
ground. The short finder creates a pulsing magnet- TEST LIGHT
or
ic field in the shorted circuit and shows you the VOLTMETER
location of the short through body trim or sheet SOLENOID
metal. Its use is explained in the following trouble-
shooting tests.
=

(confd)

1..11
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 How To Use This Manual
Troubleshooting Tests (cont'd)
Testing for Continuity Testing for Voltage Drop

This test checks for continuity within a circuit. Wires, connectors and switches are designed to
When testing for continuity at a connector, you do conduct current with a minimum loss of voltage. A
not have to separate the two halves of the connec- voltage drop of more than one volt indicates a
tor. Instead, probe the connector from the back. Al- problem.
ways check both sides of the connector because
dirt and corrosion between contact surfaces can
1. Connect the positive lead of a voltmeter to the
cause electrical problems.
end of the wire (or to the side of the connector
or switch) closest to the battery.
1. Disconnect the negative cable from the battery.
If you are using an ohmmeter, hold the leads to-
2. Connect the negative lead to the other end of
gether and adjust the ohmmeter to read zero
the wire (or the other side of the connector or
ohms.
switch).

2. Connect one lead of self-powered test light or

3. Turn on the components in the circuit.
ohmmeter to one end of the part of the circuit
you wish to test.
4. The voltmeter will show the difference in volt-
age between the two points. A difference, or
3. Connect the other lead to the other end.
drop, of more than one volt indicates a prob-
lem. Check the circuit for loose or dirty connec-
4. If the self-powered test light glows, there is con- tions.
tinuity. If you're using an ohmmeter, low or no
resistance means good continuity.

HOT AT ALL TIMES I

SELF- 1f""=--~--"'9IIGNITION
POWERED SWITCH
TEST
LIGHT VOLTMETER
or
LLJOHMMETER

SOLENOID

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 Testing for a Short with a Test Light or Voltmeter Testing for a Short with a SelfgPowered Test Light
or Ohmmeter
1. Remove the blown fuse and disconnect the load.
1. Remove the blown fuse and disconnect the bat-
2. Connect a test light or voltmeter across the fuse tery and load.
terminals. Make sure that the voltage is being ap-
plied to the fuse terminals. You might have to put 2. Connect one lead of a self-powered test light or
the ignition switch in RUN. Check the schematic ohmmeter to the fuse terminal on the load side.
to see.
3. Connect the other lead to a known good ground.
3. Beginning near the fuse/relay box, wiggle the
harness. Continue this at convenient points
4. Beginning near the fuse/relay box, wiggle the
about six inches apart while watching the test
light or voltmeter. harness. Continue this at convenient points
about six inches apart while watching the test
light or ohmmeter.
4. When the test light blinks or the voltmeter needle
moves, there is a short to ground in the wiring
5. If the self-powered test light blinks or the ohmme-
near that point.
ter needle moves, there is a short to ground in the
wiring near that point.

[ H~AT ALL TIMES I BATTERY DISCONNECTED

FUSE/RELAY FUSE/RELAY
BOX BOX
(FUSE (FUSE
REMOVED) REMOVED)

TEST LIGHT SHORT TO SHORT TO

or GROUND GROUND
VOLTMETER

LOAD LOAD
DISCONNECTED DISCONNECTED

(cont'd)

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 How To Use This Manual
Troubleshooting Tests (cont'd)
Testing for a Short with a Short Circuit locator

1. Remove the blown fuse. Leave the battery con-

nected.

2. Connect the short finder across the fuse terminals.

3. Close all switches in series in the circuit you're GOTATA~-~

testing. SHORT
FINDER
r--,..---- FUSE/
RELAY
4. Turn on the short circuit locator. It sends pulses of BOX

current to the short. This creates a pulsing mag-

netic field around the wiring between the fuse/
relay box and the short. ~
C!'
5. Beginning at the fuse/relay box, slowly move the ~
short finder along the circuit wiring. The meter will METER C!'
show current pulses through sheet metal and
plastic. As long as the meter is between the fuse
and the short, the needle will move with each cur-
rent pulse. Once you move the meter past the
MOVE METER
1 SWITCH

point of the short, the needle will stop moving. ALONG WIRE ... PULSING
Check around this area to locate the cause of the
short circuit. ~~~~ETIC~Lib
~
~
~
C!'
.. NEEDLE STOPS
MOVING HERE

SHORT TO
GROUND

NO
PULSING
MAGNETIC
FIELD

1",14
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 Troubleshooting Precautions
Before Troubleshooting

- Check the main fuse and the fuse/relay box.

Check the battery for damage, state of charge,

and clean and tight connections.

CAUTION:

@ Do not qUickmcharge a battery Imless the

battery ground cable has been discon m
nected or you will damage the alternator
diodes.

@ Do not attempt to crank the engine with the

ground cable disconnected or you will sem
verely damage the wiring.

While You're Working

Make sure connectors are clean and have no

loose pins or receptacles.

Make sure multiple pin connectors are packed

with silicone grease.

Pack wrth2' g'P~"

J
/

CAUTION:

@ Do not pull on the wires when disconnecting

a connector. Pull only on the connector
housings.

@ When connecting a connector, push it until it

clicks into place.

@ Refer to page 1m10 for cautions about troUm

bleshooting circuits that contain solidmstate
devices.

1..15
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 Fuse Information: Asp and SE
Fuse/Relay Bo)(--~

ACC TERMINAL ~~
C :: )
c 2 )
Ci )
C 4 )
C =) 5

C =~ )
(
(
7

8~
) @J RELAY

(
10 J
9 ) G®j IGN.
CRUISE
RELAY
( 12

C C~· 13 .J
C=11 ~:J
C
~.~.~
'"''='''

Fuse Fuse
Number identification Amps Circuit or C omponent Protected

1 Ace 5 Optional accessories

Terminal
2 HornfTurn/ 15 Horns, Horn turn relay coil, Position rela Y coil, Stop light relay coil,
Stop Relay Turn signal cancel control unit, Turn sign al flasher relay coil
3 Stop 15 Brake lights
4 Fan 10 Cooling fans
5 Head 15 Headlights, Instrument panel indicators
6 Air Pump 10 Auto level control system
7 Parking 10 Air pump (outiet), Parking lights
8 Tail 15 Accessory lights; Instrument panel gau ges, Instrument panel indicators,
Meter Cornering lights, Headlight relays, Licen se plate light, Position lights,
Position Side marker lights, Taillights, Reverse sy stem control, Handlebar illumination
9 RVSStart 5 Reverse system
10 Ace 10 Air pump relay, CB radio, Stereo/cassette deck, Hazard lights,
Instrument panel indicator illumination, Wheel speed sensor
11 Ign. Start 15 Bank angle sensor, Charging system, C ruise control indicators,
Cruise Emission controls, Engine control modu Ie (ECM), Ignition coils,
Ignition/cruise relay coil, Starting syste m
12 Head Relay 5 Headlights (high & low relay coils)
13 Back Up 5 CB radio, Stereo/cassette deck, Instrum ent panel indicator illumination,
Trunk light
~~".~ b -••~.~_" ••••
.._--""

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 Int
- Fuse/Relay Box

ACC TERMINAL
o

o
o
nfI
®
HEADLIGHTS
(LOW)
RELAY

l::J

Fuse Fuse
Number identification Amps Circuit or Component Protected

Acc 5 Optional accessories

Terminal
2 Hornrrurn/ 15 Horns, Stop relay coil, Turn signal flasher relay
Stop Relay
3 Stop 15 Brake lights
4 Fan 10 Cooling fans
5 Head 15 Headlights, Instrument panel indicators
6 (Not Used)
7 Parking 10 Parking lights
8 Tail 15 Accessory lights, Instrument panel gauges, Instrument panel indicators,
Meter Cornering lights, Headlight relays, License plate light, Position lights,
Position Side marker lights, Taillights
9 Back Up 5 Stereo, Trunk light, CB radio (optional), LCD unit
10 Acc 10 Stereo, Hazard lights
11 Ign. Start 15 Bank angle sensor, Charging system, Emission controls,
Engine control module (ECM), Ignition coils, Ign-relay coil, Starting system
12 Head Relay 5 Headlights (high & low relay coils)
~~~~.

'--"-'--'

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 LCD Unit Display

When Radio is in the scan

mode, this indicator blinks.

Controlled by the AMB button.

This ambience circuit blends Blinks on display When M button
frequencies from both Channels on radio is pressed.
for a live performance effect.

Controlled by the mute switch

button, which automatically
lowers radio volume so that AMB. Indicates which memory

,
channel has been
external noises may be heard.
selected.

Displays AM or FM station;
dependent on AM/FM switch .

Displays if FM station
is received in stereo. ...............ST.'
When cassette player is loaded Controlled by headset
and radio is turned on, this will speaker control knob.
indicate tape direction of play, Indicates that sounds are
fast forward or rewind direction. present on the headsets
and not the speakers.

The Tape Music Sensor indicator

is displayed when a cassette is
engaged and the search lever
has been pushed upward or
f Clock is displayed when
ignition switch is in P, ACC,
or ON.
downward. The cassette then
advances or rewinds to the next
pause in music.
The corresponding direction
f f
indicator blinks to indicate tape
direction.

To check air pressure in system,

press P. Check button and time
will be removed from display and
air pressure will be shown in psi
[\' SE ~Odels onlJ for American models, and kg/cm2
for Canadian models.

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 Power Distribution: Asp and SE
Circuit Schematic-.. ·. ·.

[f~;;;;'-;;;;;;';' ;;;;;;;;;;~==========:::W:::H=T ==~~~~~~~~~~=:~~v':rc:W=H=T Q& ::::=W=H=T:=:::~~

BLK Starting System ~ S251
MAiN WHT
BATTERY YEIJRED C41 ~~~E 8
MAiN r";::+I=:t'~~~~~~~¥~.,STARTER Page3-26 ===,
FUSE A
3M
RELAY A
Page3-15
I
I
"-.fi&&.
I
em

ALTERNATOR

l
C41 C41
Page 3-26
RED BRN/RED
See Ground

I Distribution,
page2-10,
•
Starting System
RED Pa e3-15 C58
I
~G100 R
~~~~~=~== ====~~=======~=1

iw~' £--0; "";1 . .-";----""'~:

I " --'" BAH I iGNiTION

...-0' (WITCH

I P OFF ACC OFF ACC I

AC~~~~ p~_~~~~_.-~~~ I~_ ~J
YEIJBLK BLK BLU/ORN
---- ------------ C~
YEIJBLK+

'\if BLK BLU/ORN

To FUSE/RELAY BOX on
page 2-4.
r=~"141 Q& =============I~~~~

LT GRN/
BLK
~ '-!.I
f1\ LT GRN/BLK f.jQI
~ II 80X
ACC ACC I
TERMiNAL FUSE I To FUSE/
FUSE 10A
RELAY BOX
REDiYEL 5A
+
I on page 2-4.

I
I ACCESSORY LT GRN/BLK I
D
L =TJ;,R~~I;.. = ., ~:~RN/ ® 'I
LT GRN/BLK S140 Q& To FUSE/

LT GRN/BU<
==
1~8HAZARD
C10
LT GRN/BLK
I=
II Coil
~ AIR
PUMP II
I RELAY I
RELAY BOX
on page 2-2.

I
I
, FLASHER
I RELAY
I L
LT l!:==::===-3
I ~~~e I
L- = = Page 9- 7 GRN/ LT GRN/
REDiYEL
""UE:2!::::2iLTIlliiGiER;jN/iBLi§jKUII:::;;IIIE::;iiIIIIIIiI!:::;mlllll::<lnm BLK BLK ..;;LTiejGmRiiliNnmC(1:.011111311111111
S101 I'i Q&'"'MM 4M(~~= (
S103 C73 IS278 LTGRN AIR PRESSURE
LT GRN/BLK LT GRN/BLK I ".., CONTROL
p:;;;llllllll!i:::;;IIIIIII.
C91 LT GRN/BLK
1 CG6
LTGRN/BLK
I
I SWiTCH
I ASSEMBLY
16.= = Page 5-4

C8S ClI(~MM~III:::lI!IIIIC;l-=_ S104

GRN

I
;"'''''\ TRUNK
REDiYEL

REDiYEL 18
r====OCBTRANS-i"====l
C1
i"
REDiYEL

BU<
==
J16
LT GRN/ LT GRN/
BLK
===
9
REDiYEL C1
LT GRN/
BLK
08
LT GRN/
==
BLK
C1 07

="1
1
IC "'IVER I RADIO/ ==. ==== I ... ~ I
\ liGHT
",-.I Page 9-18 I CASSETTE'" 15-2 7 -6 5-2 I 7-6 I
O====,J:~g~~~2~ O====dDECK Ignition II I II I I
Page 10-0 I t I I
IL========~u=="", L="",
INSTRUMENT LCD UNIT I WHEEL I
PANEL b. = = = = = = = = = = ~f!'~ .!f~Q!t.Jl

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 s--- =~ , =: ]\

F~~~~------------_:~~~~~~~~----------~---~:
~~~~:'..':'
FUSE
----~~~~MP 1 ~~:
F U S E ] FUSE 15A
15A 15A WHT/GRN 10A
From S1D6 WHT/RED
WHT/BLU WHT/YEL (,;\
on page 2-2. 6""===1\2.1
WHT/BLU
p===o @ I AIR
Contact I
I Contact I
HEAD- I PUMP I
To HORN/TURN I I
LIGHTS &===..0 pRELAY
RELAY on B (LOW) ~3 age 5-4
B= = = ..0 RELAY \:V
page 2-2.
6""==="\1 0 Page 8-1 TAil 6""===,0
I Contact I HEAD- (MAIN) I Contact I STOP
I I LIGHTS
b = _ = ..0 ~HEILAGHy)
n
T ~:~J-12 I
L
===
I LIGHTS
.. RELAY
Page 9-16
Page 8-1 See Ground
I Distribution,
page 2-12.
==t================.a
~ G100
BRN/BLU

S116

BRN/WHT

C94
BRN/WHT ~
BRN/WHT
lC96
r== ===0 LEFT BRN/WHT
.. --,
I p = .., I COMBINATION I Contact I
I I I I SWITCH To C10

i
on page 2-5. I I
L.~.-=d
I I I I LEFT
'posITio~
I I
""'w~, .,21
CORNERING
I LIGHT LIGHT
RELAY
I SWITCH I BRN./WHT
Page 9-3
BRN/WHT

I =~g~~t3 I
O======J
I C5a

1
BRN/WHT
C73 0==== TI:.;-===91 IGNITION
I I SWITCH
BRN/WHT ~
I LO~ ON I
I P
".K
ACC
II
I OFF
~lIIlI':::.::-=~=-~ ~ S123 .... = = = = = = = = C70

BRN/WHT

See Indicators
",-,1
See Headlights
BRN 6""=='
I Contact I
I
L=-=-t&9
RIGHT
I
CORNERING
page 7-0, page 8-0, Marker LIGHT RELAY
Instrument Panel lights page 9-0 Page 9-3
page 7-4 To 8113 on (corat'd)
page 2-4.

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 Power Distribution: Asp and SE
Circuit Schematic (cont'd) -_.~._----_.~_-"". _------~

From IGNITION SWITCH on page 2-0.

BLK BLK

p----------------~--IIIIIIIIIIIiii~---~~~S
S105 S106
r------ -----1 FUSE/
I I RELAY
I II BOX
I BU<
I @ I
I BLK
RVS START I
I
I CD FUSE
5A
I
I
I 1F""'~------,~'911 HORN/ _____J
I TURN
RELAY
r-- To TAIL (MAIN)
RELAY on
I
------ page 2-1 .
BRNIWHT
I
I
I See Ground r T C92

I Distribution, ~ ~
BRN:H]~I REVERSE
WHT/GRN
I page 2-12.
I
ll.==,="=«?<=."""""",.""""""" I I LEVER
.----:: ~~ WHT/GRN
I I SWITCH
1== ... Page 3-31

WHT/GRN I.N. CD
I <roil I, POSITION
,II'"
I RELAV
I I I Page 9-7
GRN IL 1~~dB _
WHT/GRN C10

I See Ground ~Ji

VVH I/<oiHN C87
Distribution,
I page 2-12. fF'l=-=O

GRN I ~::;;a....
WHT/GRN C81
I
,
I
I
,,= tc;'~1
5108 ... D~~d
~ G100 WHT/GRNH
2 " TURN
SIGNAL
C57

WHT/GRN
WHT/GRN
i C320
II'" = ~I FRONT BRAKE
II'"

I
I
=1
I
,
FLASHER
RELAY
Page 9-7
I I LIGHT SWITCH 1==dB

6~~~
I Page9-16 REAR BRAKE
LIGHT SWITCH
Page 9-16

SilO . . . . . . . . . . . . .""" ... "';;;:;ii!!'

WHT/GRN .11 A£:W~T/G4l
1:f' C90 C93
WHT/GRN JJ.

WHT/GRI~J.l
II'"
I
~I
.'1:1" C99
TURN SIGNAL
I
CANCEL CONTROL
WHT/GRN
==11"'=
I I
I I
l =~=~="LEFT
I HORN I COMBINATION
SWITCH I SWITCH
I UNIT
1==dB Page 9-6
I I·
16 =m==~' __
I Page 5-0 I
'~@g

2..2
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 --------------------------'-------------,

BLK

~S-------~--------
BLK
..-----------1mI
BLK

----I FUSE/
@ I RELAY
HEAD I BOX
RELAY I
FUSE I
SA I
WHT
----I

@
IGN./
CRUISE
RELAY

WHT BLKiLT GAN

AEDiWHT

See Engine Control System,

Starting System,
Charging System,
Reverse System,
Cruise Control

BRN/RED

C33 C32
C57

BAN/RED
WHT
AEDiWHT

r----------] Cll
I
I
I
FREE
---, STARTER/ I

_AI
I REVERSE I
PUSH I SWITCH
I
I

~W:~~ ~ -. ~ = = =A : : T - . =1 BANK
I 11-= _-._~
1- = = = -. = = = -. _ -. _.JI
RIGHT
I
I I ANGLE COMBINATION
I I SENSOR SWITCH
I I Page 3-14
O~ '= = _ '= = = = = . = . ~.,o=o.~~._

(cont'd)

2.. 3
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 Power Distribution: Asp and S.E
Circuit Schematic (cont'd)

From IGNITION SWITCH on From IGNITION SWITCH on

page 2-0. page 2-0.

VELJBLK

cv ==.~.~.=~.~

@
FUSE!
RELAY
PARKING FAN BOX
FUSE FUSE
10A lOA
=--====mI
LT GRN/YEL

LT GRN/YEL
1Ili!!!I!!!!!E:;lI!1IIIII:.:::J1IIIIIC_::m:::Jllll1E::mE:;J!1IIII! ~ S142
C73 BLKlBLU
LT LTGRN/YELj
GRNI C10
VEL
LT C103 LT GRN/YEL
GRNI
VEL IN-LINE
F'~ ~lIAIR DIODES
I Outlet I PRESSURE Page 9-13
I Switch I CONTROL C22
SWITCH
L ~ = = odI ASSEMBLY
Page 5-5

BRN

BLU
BRN

BRN
BRN
F'~ ~ = = = = , RIGHT
I"" BRAKE LIGHT! I SADDLEBAG BLU

I «....... - TAIlliGHT I LIGHT

ASSEMBLY
L~=======dI Page9-13
From IGNITION SWITCH on
page2-1. C110
pIIII!ElIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIB ~ S112
BRN

BRN
C56 BRN I BLU BLU
C109

1"-, LICENSE
5113 ~IIIII!I!IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII

\
~.1 LIGHT
PLATE
Page 9-13
BRN 11 CB4 RIGHT
NOISE
LEFT
BRN
NOISE
FILTER FILTER
Page 3-28 Page 3-28
• CB5
S273 BRN BRN 11II
1!flIIIII!--~1IIIIIIIIIl!- 1IIIIIIIB ~ S272

BRN BRN
1P'
"""'1 LEFT
I I RADIATOR
r'
I
=.,I CENTER
LIGHT
BRN
C1BB (Optional)

~~~~==, LEFT bw.=odI MOTOR

I
M
I FAN
I
I RADIATOR
FAN
p MOTOR
I I AS5~MBLYI
(Optional)«
) BRAKE lIGHT/1 SADDLEBAG
TAILLIGHT LIGHT
Page 3-28 odI Page 3-28
I I Page9- 1 .............
12 ASSEMBLY I
1b=======.J L========odI Page9-12

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 '~-------~-~-----""----------

From 5115
on page 2-1.

BRN/WHT

BRN/WHT BRN/WHT BRN/WHT

CS6 C75 C76 C82

BRN/WHT
BRN/WHT

..., ~==--~
C329
I -,
I u?'!\ I I I BRN BRN

I \~.I I I I I I
I (3) I
!b"".~=~
LEFT SIDE
I
!b"".==~
SPOILER
I I
l~
I
_
RIGHT SIDE
TRUNK BRAKEfTAILLIGHT TRUNK
MARKER CONTROL MARKER
LIGHT MODULE LIGHT
Page 9-1 (SE Only) Page 9-1
Page 9-20

piI!IIIIIIIIIII!!IIIIIIIIIII!!IIIIIIIIIII!!IIIIIIIIIII!!IIIIIIIIIII!!IIIIIIIIIII!!IIIIIIIIIII!!IIIIIIIIIII!. S209

BRN GRN GRN BRN

r-= ====='=~,
r=
I ,,-- lEFT I I I
Il~ I~~ RIGHT
I i ) BRAKE LIGHT! I
""""=- TAILLIGHT I \~,) \~J I BRAKE LIGHTi
TAilUG. HT
I
I
I Page 9-12 I Page!H3
L======== ...... .J lEFT RIGHT b=<s==~.==~=.~.J
TRUNK LIGHT ACCESSORY ACCESSORY TRUNK LIGHT
ASSEMBLY LIGHT LIGHT ASSEMBLY
Page 9-19 Page 9-19

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 Power Distribution: Int
Circuit Schematic
WHT WHT WHT
ED S
Starting System ] 8251
MAIN WHT
YEL/RED FUSE B
BATTERY 41 55A
MAIN
FUSE A
STARTER
RELAY
Page 3-26
r B =,
30A A I I
Page 3-17
~.~.-
I
C41 ALTERNATOR

I
See Ground
Distribution,
page2-16.
RED
f41 ...BLK

,
Starting System
BRN/RED
Page 3-26

RED C58
I
.!- G100
Pa e3-17

=== ==============='lIIGNITION

... =
@-1 :;',!~q"
1
f _

;;~ - -o;----'""~J
BAT

I
1SWITCH

~~: ! '"'-':-~f:::~---~::~~J~J
0'

BOX I' 0'

LT GRN/BLKj - - :::~ - - -- - - - - - - - !"' ~'""' C58

I
BLK BLU/ORN
REDIYEL To FUSE/RELAY BOX on
page 2-8.
p=~-- : ~===m~~~_, FUSE!
1 5141 ED 1RELAY
REDIYEL
F_::iiiiEiime:;;m ED S101 1 ~:~RN/ CD LT GRNIBLK 1BOX
I ~C I
I TERMINAL I To FUSE/
I ~~SE I RELAY BOX
REDIYEL on page 2-8.

C89
I ACCESS~RY
TERMINAL
I
GRN
I
"'''"', TRUNK LT GRN/BLK
Ib======

LTGRN/BLK
To FUSE/
RELAY BOX
on page 2-9.
\ LIGHT C10
_,I (Optional)
Page 9-18
LT GRN/BLK 1t CB
AC88
==......, HAZARD u::_Ii3m:::;-I1i" Transceiver
I I FLASHER (Optional)
REDIYEL 5102 I I RELAY Page 10-22
1P2~~ED~~ L" = = Page 9-9
LT GRN/BLK

REDIYELtR~::~anscelver
18 Page 10-22
( Optional)
9 C1
... = = ===== = = = = = = = = = =.~""'" RADIO/CLOCK
C71 I Memory Ignition I Solid-state:
REDIYEL
I
,C91
1
I
Power
12:00 Power I Do not check
I resistance.
REDIYEL
I I
J ~~~~~~~~~~----~-~-~~
Instrument
Panel:
LCD Unit
Page 5-2

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 WHT FUSE/
RELAY
BOX
r~*====='~= .~=:~:===~-

I ® ®
I HORNrrURN/ STOP
I STOP RELAY FUSE
lSA
I FUSE
I lSA WHT/RED
I WHT/BLU

I lP===O@
I
BLI<i
WHT
I Contact I HEAD-
I I LIGHTS e---===re:~@
I (lOW)
O===dl RELAY TAil
I Page 8-3 - _. -I- I (MAIN)
I lP===' (1) ~~URELAY lP===,(g)
I I Contact I HEAD- Page 9-14 I Contact
I To HORNfTURN I I LIGHTS J I
I STOP
I LIGHTS
I RELAY on page 2-9. L = = = mil (HIGH) BRNIWHT I See Ground
Distribution, o,==_aoll RpELAY

==~:ge~~=========~:17J
RELAY
I Page 8-3
~======-~~---===~~~~~~~

BRNIWHT 5420 BRNIWHT S415 ~ Gl00 BRNIWHT

F::E::::OOE::E::::OOII!!':::JDE::::BE:21111 ~ IIt:::<W" :M5.... ~ ~:fE:.;B::::OO~B:::::;lIi\!!II!!':::J_aclile::::BCi!!!II!E:::a::~

BRNIWHT
t C72 BRNIWHT
t C10
BRNIWHT.
f Accessory
Oil Pressure BRNIWHT
BRNIWHT BRN/WH BRNIWHT
Warning System Lights
Page6-1 \ '\ lH \ '\ RH Page9-19
Headlights _./ _J
Page 8-2 HEADLIGHT POSITION LIGHTS

-
Marker Lights Page 8-2
Page 9-0
S421

DE:~=lc7o 5416 i-....... "":N::l C96

r 1 r 1
BRNIWHT

1 C94
I
RIGHT
=

L==aoll
CORNERING
=

LIGHT RELAY
(Optional)
I
BRNIWHT

BRNIWHT
CS8
I
=

L==dJ
LEFT
CORNERING
=

LIGHT RELAY
(Optional)
I

BRNIWHT Page 9-4 Page 9-4

0==== =-==="'11 IGNITION

r~.:=_=-==-==- n::==~::'::; II LOC~
TL 1
ON
I SWITCH
I
I I I LIGHT I
I I I SWITCH I I '- K I
I I .. ~ oa" I Page9-4 I P ACC I
I OFF Tl2
I I PL PR I I "=_======= -0
BRN
I~- =========J I C58
O==== ~~=~~==~=~
BRN
LEFT
COMBINATION
SWITCH
ToS442
on page 2-8. (cont'd)

2..7
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 Power Distribution: Int
Circuit Schematic (cont'd) - - - - - - - , - - -
From From
IGNITION SWITCH IGNITION SWITCH
on page 2-6, on page 2-6,
C

======...., FUSE/

From
I G> I RELAY
IGNITION SWITCH I FAN I BOX
FUSE I
on page 2-7, I 10A
b-== __ ~..!l!IIIl'lIIIIII..= ..=-~=mJ
F
BAN

BAN
Iiliiillllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll_ €D S442

BAN 1, C10
BLK/BLU

BAN

S413 €D

BAN
piIIIIIII-------€D S412
'" I BLU
C22

C77 BLU
BAN
C78
BAN BAN
11"= ·-====""iRIGHT BLU BLU
I ~~I ) BRAKE LIGHT/I SADDLEBAG
1« al
" - """"'"
TAILLIGHT I LIGHT
ASSEMBLY RIGHT LEFT
L = = = = = = = = . J l Page 9-15 NOISE NOISE
FILTER FILTER

BAN
BRN
-
C56
BAN
C85
,... LICENSE
\ '\ PLATE
__ .I LIGHT BLU BLU
Page 9-15 BRN

.---€D S473 BAN _ €D S472

I'"

I
...., RIGHT
M I RADIATOR
...., LEFT
I RADIATOR
I I MOTOR
FAN I FAN

~' -~~l-'CENTER
MOTOR
BAN '= =.JI Page 3-28 .JI Page 3-28

C188 (Optional)
BRN
I ~ II ~I~~~MBLY r= ======, LEFT
I W (Optional) I . ) BRAKE L1GHT/ I SADDLEBAG
« Tall TAILLIGHT
LIGHT I
I I Page9-14 1 " - """"'"
ASSEMBLY
b =- =- ~ =- :sI!I'!!ililil!··~A!.!1.-oJ ~========.J Page9-14

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 From IGNITION SWITCH on page 2-6.

.T
.--------lIIIIIII'lt---------lIIIIIII'IIIIIIlt_IIIIIIII'IIIIIIIIIIIIII'IIIIIIIIIIIIII'IIIIII!IIIJIIl
S105 S106

@ I
From HORNrrURN/ ==""'" FUSE/
I STOP RELAY FUSE RELAY
I on page 2-7. I HEAD BOX
I RELAY I
I FUSE I
I BlK SA I
I CD
I I BlK
HORN/ I
I TURN
I RELAY
I
I I
II r----- WHT I

-==1
WHT
See Ground I
Distribution, ~~~ S487 I To TAIL
L~a~::~.=== I (MAIN)
WHT I RELAY on
page 2-7.
GRN ----- @ I
~~-----'lIIi'--I IGN. I
1=;
C192
RELAY I
1 I
I I I
1==dI I

III
C192 RED
GRN ==...1

See Ground
Distribution,
page2-17.
WHT JrRED/WH~
_~ _"l
C10

C11
BlK!
lTGRN
BRNIWHT

L REDIWH~
~='~'BANK
WH:l
...
.~ G100
WHT/GRN

5406
I
I
I.-~~==~ Page3-16
I ANGLE
I SENSOR
.
~
2 ... .... ... ....~2i!!'::::::W:::<2~HT=/G:::;;;....R~N~
It =.::::::;;;: See Engine Control
WHT/GRN C10 WHT:RN System,
Starting System,
C93 Charging System C57
WHT/GRN
CB7 li
1"==0 TURN
WHT/GRN
p=
I i =====OLEFT
I COMBINA-
BRNIWHT
r~=
I p==
======,
I
I SIGNAL I I I
fi= =1 HORN
I I TIO =""'j STARTER I
I F' A'" I SWITCH N II I
"'WIT"'H
...,..",HER
1==dI RELAY
II I1 I
dI
Page 5-1 I SWITCH II FREEPUSH
_All
I "'..
Page 8-2
I
Page 9-9 == I I L===dI I
D===== __ ~ ~==== =J

Wffi'*' J" ""~~08==

C~
.. W:W:]
C~
RIGHT
COMBINATION SWITCH

WHT/GRN 1:1'
A
C320
WHT/GRN kI'
],
p = =1 FRONT p =0 REAR
I I BRAKE I I BRAKE
I I LIGHT I I LIGHT
0= = dI SWITCH 1= = dI SWITCH
Page 9-17 Page 9-17

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2..9
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 Ground Distribution: G100, G102, G103, and G104 (Asp & SE)
Circuit Schematic ~----

r=~= ~ ~ ~ ~ ~ ~ = ~ ~.@W$~.~.~.~ - , = ~ ~ ~~~'===~='~'--'~'.-.'~~ INSTRUMENT 1

I r-- """III
I
ENGINE
COOLANT
,IP -- """II FUEL
I GAUGE
,IP -- """II WHEEl.
I SPEED
,IP ""'" """II LCD UNIT
I Solid-state
I PANEL
I I I I I Page 7-4 I I SENSOR I I Pages 5-2 I
:R:f
TEMPERATURE
I Lw ... (ECT) Lw... Lw ... Page7-8 ... and 5-4 I
I GRN/BU< GAUGE
Page 7-4 S 168 I
I _::.lIilIIe:::::illllIIIIII::::lIIIIIIIII:5a. GRN/BU< I
L_----- -;,;;;4-C108------- ::':--____ I
GRN/BlK I GRN/BlK GRN/BlK

i
IP="""II FUEL
I I l E V E L : lIIIIIIIII: ;;we;;we;;we;;u:;: iIIIIIIIffi ~ 1IIIIII!:;;G1C3lll1lllE:2rg:5aE'2i!l!lIIIIII::::lIIII
I I SENDER S145
Lw ... Page 7-4 GRN/BLK

GRN/BlK
CGG

C112 GRN/BlK

C55

GRN/BlK
GRN/BlK

lTGRN GRN/BlK

BATTERY

r
I
., SPEED
I
LIMITER
FUSE
I GSA
I I Page3-32
L

BlK

BlK

C22

p--------. 8252

lTGRN BlK
BlK

-!-. Gl03 .a;---------

": Gl00 (PARTIAL)

2...10
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 P = -, RELIEF P = -, REAR P=-, CRUISE fF'=-' TURN
, 'SOLENOID , I SUSPENSION , , CONTROL , , SIGNAL
I I VALVE I I SOLENOID I ,
UNIT I I SWITCH
Page 5 - 5 .
"=f VALVE ~= dI Page 4-3 ~ Pages 9-6
dI and 9-7

.._----------.
dI dI Page 5-5
C135
GRN GRN

5164
GRN
6'" = -, BANK fF'1 = -, REVERSE GRN
I , ANGLE , CONTROL
P=, RIGHT
, ,SENSOR' ,UNIT , I CORNERING
~
GRN
Pages 3-14 ~ 1
dI and 3-26
C11
~2
GRN
,=
Page 3-30

GRN
C104
,
•
I LIGHT
RELAY
- - = ..II Page 9-3 GRN
CRUISE
CONTROL
SWITCH
ILLUMINA-
1lll!iEmrnw.-I111!i1IIiimE.II..
GRN 5165 d C70 TION
(SE Only)
Page 9-5
LEFT p==-,
GRN
Without CB Radio
COR- I ,
C33
fF'==l) FUEL
NERING
LIGHT
, I
With CB Radio , I PUMP RELAY I ,
P==, FUEL I I Page 3-2 Page 9-3
I I
, ,
RIGHT P=-,
I PUMP I ~ .dI

, ...
~=dI HORN
I Page 3-2 , = C127 Page 5-0 I I
r=·'",
,
ENGINE
CONTROL ~=dI GRN
.",. C186 (Asp) \ '\ ~=dI
, MODULE
C127 (SE) ..... .1 C96 C94
I 12 (ECM)
GRN
C128
~ =.J Page 3-0 e178 (SE) GRN

=,I
'
C49 GRN
RIGHT GRN
IN-LINE , - , COR-
CAPACITOR C57
\ B NERING
GRN I D - ' LIGHT GRN GRN GRN
GRN

I
'=
Page9-3
C183 (Asp) GRN 8E GRN
C178 (SE) C69 Models
Only
GRN
. GRN

From 8157
on page 2-12.
GRN GRN

..
G,l'67 miliilli d

G" I
I
S168 GRN ( From C55
on page 2-14.

G"
. . G102

- _.- - - - - - - - - - - - - - - - - - - - - - . . G100 (PARTIAL)

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 Ground Distribution: G100, G102, G103, and G104 (Asp & SE)
Circuit Schematic (cont'd)

r==========-==-=~===-==-==-=~-=~--=~='FUS~
HEAD- HEADLIGHTS (lOW) I RELAY
I HORN/ STOP TAil LIGHTS RELAY I BOX
I TURN LIGHTS (MAIN) (HIGH) Page 8-1 (";;\ I
I RE.LAY RELAY RELAY RELAY ,., = =0 ~
I "'==OG) "'==00 lP==O® l P = ' 0 ACCESSORY I I I
I I I I I I I I I TERMINAL I Coil I I
I Coil I
I L-:=d I Coil I I Coil I I Coil I L,; = d I
i...,;;=d i...,;;=d L-:=d I
I ~--L- I
I
======J
TURN
CB CRUISE SIGNAL
TRUNK RADIO/ SWITCH CONTROL CANCEL
LIGHT CASSETTE (DRIVER) VALVE CONTROL
SWITCH DECK Pages 10-21 UNIT UNIT
Page 9-18 lEFT
HORN Page 10-1 and 10-25 Page 4-3 Page 9-6
fF==ft Page 5-0 lP=-, "'==0 p=-, p=-,
I I ,,"'" 1 1 I 1 I 1 I I
'
L-r
I I \ -..1 1B......,=d1 IB......, 1 1 I IB......, I
m dI CB/RADIO d d
C179 SWITCH C1
ASSEMBLY GRN GRN
(SE Models
Only) C131
GRN/BLK Page 9-5 C99
GRN GRN
r-'=====""'lI
C89 I '''''', '-, 1 C23 (8E)
1'.1 \.1 1 C20 (Asp)
GRN

1 ~ ~ 1
GRN GRN
=J
GRN GRN SIDE GRN C90
STAND
GRN
SWITCH
GRN Pages 3-1
and 3-15
"'="""'\J
I 1 GRN
C23 IB......, I
..a

GRN GRN

GRN

---~--
GRN I
S148

GRN
~
I
5147*
..
GRN

* Two Wire Splice

~ 5157*
GRN

To 8167
on page 2-11.

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 r~ - ~ ._= =<mW; ~ = ~ ~ ~ - = - = ~ ~ , - ~ , ~~ = = ~ ~=-<=>~'~'-="~-='- = ' ~ ~ ~ TRUNK

I , ..., RIGHT ,-- RIGHT I LIGHT

I \ .I ACCESSORY « ) BFlAKE LIGHT!
I ASSEMBLY
Pages 9~11,
I %= LIGHT TAILLIGHT
I 9~16
L ~~======
GRN
GRN
GRN
C76
GRN S158 GRN

~-----.----_. LEFT
RIGHT SADDLEBAG LICENSE ACCESSORY
PLATE RIGHT SIDE TRUNK TRUNK LIGHT ASSEMBLY LIGHT
LIGHT ASSEMBLY LIGHT MARKER LIGHT Pages 9~ ii, 9~12, 9~ 16 Page 9~ 19
Paaes 9~13, 9-16
~~'~:=~=~
r ,-- BRAKE I ,.... ,. ...... ,.- ,....
Page 9~ 13
8 , \ 1 8
Page 9~ 1
, 8 '\ GRN
r~=~;~;;~""''===~F~==i
I« ) « )
, ...,
I« ) I \.1
I
L=
GRN
LIGHT!
TAIL--
=!-!~!..J
\%=.1

GRN
GRN
.I '\
GRN'I

S270
..-0_
.I
GRN
"
'1
.I
GRN
S271
I
l=
TURN
SIGNAL LIGHT

S160
BRAKE
LIGHT!
~~~H!'J
I %=

GRIIIIIIIII!

C7a
GR GRN
GRN Cl5 SPOILER
GAN GRN BRAKE!
TAILLIGHT
HAZARD cn 5159 CONTROL
FLASHER LEFT SIDE TRUNK STARTER RELAY MODULE

,. ..., , "-, r='

RELAY MARKER LIGHT REGULATOR (5E Models)
Page9~7 Page3~30 Page9~20
Page 9-1
11""=' 11""==0
I
I~ dl
I
I
GRN
\ .I
GRNl GR
.1\.1 IGRN
1
~ ..II
I
I~
I
IdI
Ca8 5267 .-.oED C329
GRN C8S GAN C84 GRN 5266 GRN
GRN GRN
C86
C35

11"" ..... , LEFT GRN

I I CORNERING
I I LIGHT
RELAY ED SPOILER
~ = . & Page 9~3 BRAKE!
GRN S150 TAILLIGHT
C96 Asp (SE Models)
Models Page 9-20
GRN Only GRN
GRN

(cont'd)

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2..13
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 Ground Distribution: G100, G102, G103, and G104 (Asp & SE)
Circuit Schematic (cont'd)
r~~~--~-'-~~-~-~---~-~-'~~'-~-~---------~---lINSTRUMENT
I RIGHT TURN lCD HIGH PANEL
SIGNAL
I INDICATOR ILLUMINATION UNIT BEAM Pages 7-4,
TACHOMETER LIGHTS ILLUMINATION INDICATOR 7-5,7-6
1 '-, '-,.I
p_
I
I ,..-, r-=' '."\ , ..., I
I 'J
,.... 9
I II \.#
.....' \ ..... .1 I I ,."
.....' .....
~ ~
I
II GRN ~r"'"
GRN
GRN
GRN
GRN GRN

I ~ 8292 GRN
I GRN h- 8291
IIlIiIIIlIIIffi~_

IL~~~~_ _ ~~ ,
5293
r---------~

LEFT LEFT RIGHT RIGHT I lEFT TURN SPEEDO- I

SIGNAL METER
HEADLIGHT HEAD- HEAD- HEADLIGHT I INDICATOR ILLUMIN- I RIGHT FRONT
POSITION LIGHT LIGHT POSITION I ATION I RIGHT FAIRING TURN SIGNAU
I ,_ I
LIGHT Page8-1 Page LIGHT
1"'-, \' MARKER LIGHT POSITION LIGHT
Page 8-1 8-1 Page 8-0
1"'' ' ', I '_.I I
Page 9-0
, ...,
'-,
Page 9-10

'_.I
,-, , ''''' ,
\_.1 '_.I '_.I I
.t"""', GRN _.I
I '_.I \ ......1
GRN II II
I
GRNI GRNI GRN GRN GRN
GRN
GRN
h _ _. ~ _ ~ S174 I ~ I
S173 GRN L GRN ~9~ J C68 C67

C66
GRN GRN
S175 ~ ilBllOOBIIOOBIIiII
GRN ~ OB. 1!OBlI

RADIO S171
AIR PUMP NOISE
ASSEMBLY FilTER
Page 5-5 Page 5-5 lEFT FRONT TURN
lP-=, P-'''''''''ij GRN SIGNAUPOSITION lEFT FAIRING
I I I I LIGHT MARKER LIGHT
C24
'-,
Page 9-10 Page 9-0

"'' ' ',

LfJ L1J
GRN
C106
GRN
C182
GRN
'_.I
GRN
\_.1

GRN GRN GRN

C10 C97
Without With
CB CB
Radio Radio GRN

GRN GRN
~---~----~- _ _DBd S177 • _1IiI!IIIIIIII!• • _l!IIIIIIIlIIl!IIIIIIIlIIl!IIIIIIIlIIl!IIIIIIIlIIl!IIIIIIIlIImiII
8166 5176
GRN
C55
GRN

T08168
on page 2-11,

..
" - , ,,,,,,,, -------------------

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 goldwingdocs.com
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 Ground Distribution: G100, G102, G103, and G104 (Int)
Circuit Schematic

GRNIBLK
C10G
1F'~""""'1 FUEL
I I lEVEl. GRNIBLK
I I SENDER
Low ..Ii Page7-8

GRNIBLK
GRNIBLK
C112
C72

GRNIBLK
GRNIBLK

BATTERY

LTGRN GRNIBLK

C22 BLK

GRNIWHT BLK BLK

~ 0103 ~ Gi04 GiOO (PARTIAL)

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 iI""""~"'\l RIGHT CORNERING
RIGHT
",,_ RIGHT I I LIGHT RELAY ,f" ...... CORNERING
v '\ HORN
I... I (Optional) \ 'LIGHT
\ .I (Optional) • Page 9-4
"- Page 5-1
C128
~="

C70
G" -I J
~~~~":')
GRN GRN

lmulll!lll!llllllllll!lll!llllllllll!lll!lllllll!ill!lllnllIll!lll!lllllllIll!lll!lllllllIll!lll!lllllllIlMlllllllllGlil.." r 09

IIIIII!IIIIII!IIIII!IIIIII!IIIII!IIIIII!IIIII!IIIIII!IIIII!IIIIII!IIIII!IIIIII!IIIII!IIIIII!IIIII!IIIIII!IIIII!IIIIII!IIIII!IIIIII!IIIII!IIIIII!IIIII!IIIIII!IIIII!IIIIII!IIIII!IIIIII!IIIII!IIIIII!IIIII!IIIIII!IIIII!IIIIII!IIIII!IIIIII!IIIII!IIIIII!IIIII!IIIIII!IIIII!IIIIII!IIIII!f!fJ!ill S156

r=' = -= ~ -= =- =' ==~= =- = = -= -= ~ =- ' = = =~ = =- =====~ FUSE/

I I RELAY
I HORN/ STOP TAIL
HEAD·
LIGHTS
I BOX
I TURN LIGHTS (MAIN) (HIGH) I
I RELAY RELAY RELAY RELAY I
I r-10 r-1 0 r-leD r-10 I
I l~IJ l~iJ l~iJ L~iJ I
I L,, , I
I I
b=_=~'lIIlIIIIOm·=~~~="<=-1

® iI""""-"'\l HEAD-
I LIGHTS I
FUEL
I (LOW) I GRN

1b_.....J RELAY
PUMP I Page 8-3 FromS152
Page 3-6
r--91 l~=-~. =>lilIlIlIlIWll=~.~ on page 2-18.
I I iI""""-' ENGINE
GRN M
I~._~
I I CONTROL I
MODULE

I
= C186 I12 (ECM) GRN
I GRN
~1IIIIIIiiiiii~_.lI_1IIIIiiiIIIIIII1!!!IId
L_.....J Page 3-4 FromC72 on

S::~
GRN GRN C49 page 2-20.

"'Il IN-LINE
I CAPACI- . .1IIIII!IIIII!!1IIIII!IIIII!!1IIIII!IIIII!!1IIIII!IIIII!!1IIIII!IIIII!!1IIIIIIIIIIIII1IIIIIIIIIIIII1IIIII!IIIII!!-lI_IIIIIIIIIIIIII_GRN
_IIIIIIIIIIIIII_IIIIIIIIIIIIII. . . . lI
I TOR D
5467 IS155
...II iI""""--91FUEL
I PUMP I GRN
I Page 3-6 I GRN

Ibk~-.J C22
= Y C127
GRN,.t
,/

With CB '( VVithout CB Radio

GRN
IIIIII!IIIIII!IIIII!IIIIII!IIIII!IIIIII!IIIII!IIIIII!IIIII!IIIIII!IIIII!IIIIII!IIIII!IIIIII!IIIII!_ _IIIIII!IIIII!IIIIII!IIIII!IIIIII!IIIII!• • S468

--------------------.-------JllL
GRN I G100 ~ G102
(cont'd)

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 Ground Distribution: G100, G102, G103, and G104 (Int)
..- Circuit Schematic (cont'd)

F'~-' LEFT
,..... LEFT I I CORNERING ,. ... ,LEFT
I 'CORNERING I I RELAY
LIGHT I HORN
' .. .I LIGHT L... ~ ... (Optional) ',,- .I Page 5-1
(Optional)
Page 9-4 C96 Page 9-4 C179
GRN

C95 GRN GRN

GRN

lilllllmillllllllllllllillllllllllllllillllllllllllllillllllllllllllillllllllllllll_ 8 illlllllllllllliIIIIIIIIIIIIIIiIIIIIIIIIIIIIIiIIIIIIIIIIIIIIiIIIIIIIIIIIIIIiIIIIIIIIIIIIIIiIIIIIIIIIIIIIIlIII
5154

F'=-' TRUNK F'=-, SIDE P=-'CB = - , RADIO/CLOCK

I I LIGHT I I STAND I I SWITCH
PI
I Page 10-6
I I SWITCH I SWITCH I I (DRIVER'S)
•
~= ...
(Optional)
Page9-18
L... I Pages 3-5 L... ... Page 10-23 I I
....... and 7-2 L...= ...
12 C1

GRN/BLK GRN GRN

C20
CIlS C28

GRN

GRN GRN

GRN
lulllllllllllililllllllllllililllllllllllililllllllllllililllllllllllililllllllllllililllllllllllililllllllllllililllllllllllililllllllllllilillllllllllliliillllllllllllllllllll! 811111111111i1i1llllllllllili1llllllllllili1llllllllllili1llllllllllili1llllllllllili1llllllllllili1llllllllllili1llllllllllili1lllll!]1llllllllllili1llllllllllili1llllllllllili1llllllllllili1llllllllllili1llllllllllili~5
8152

GRN

T08151
on page 2-17.

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 r= =--·l'l'l'lII!a·fIIIIIIIIIIIIII··=-·~==-=~ = ~ =-==- ==~=='==.= = = = =< - =' = ~ -=-~ TRUNK
I ,.,-... RIGHT ,-- RIGHT ,.,-... RIGHT I LIGHT
I \ .. C ) BRAKE lIGHT/ I ASSEMBLY
'_.I ~~:AIUL~~HT I ~~~es9-11,
ACCESSORY ..
I _.I LIGHT ""- TAllI.IGHT

~ ~----~~- -~-~--~-~~~~~- -~--~~~~

GRN GRN
~!IIIIIIIIIIII!IIIIIIIIIIII!IIIIIIIIIIII!IIIIIIIIIIII!IIIIIIIIIIII!IIIIIIIIIIII!IIIIIIIIIIII-. S457
GRN
C76
GRN
lIIIiI!IrnIi •
5458 G
d

RIGHT SADDLEBAG LICENSE RIGHT SIDE TRUNK LEFT

LIGHT ASSEMBLY PLATE MARKER LIGHT TRUNK LIGHT ASSEMBLY ACCESSORY
Pages 9-15,9-16 LIGHT (Optional) Pages 9-11, 9-14 LIGHT

r
=~~====~·_=·~=-=-===lPage9q19
r======'
I c,--) ~I~~~~
I ""-- TAIL-
!U
"'-,
Page 9-15

'_.I
Page 9-1
"'-,
\ .I
GRN
I
I
, - - ) LEFT REAR
C TURN
, - - ) LEFT
C
SIGNAL LlGHT""-
BRAKE
lIGHT/
\
I "'-,
1_.1
'-= =~~!..J ~= ====== =~~~H!.J
GRN GRN
GRN GRN GRN
C56 5460 ~
C78 C75
GR GRN GRN
GRN C75
GRN

HAZARD cn 5459
TURN
FLASHER LEFT SADDLEBAG LEFT SIDE TRUNK
RELAY LIGHT ASSEMBLY SIGNAL BANK
MARKER LIGHT FLASHER ANGLE
Page 9-9 Page 9-17 (Optional)
1F=""'il RELAY SENSOR
r=====~=~
Page 9-1 Page 9-9 Page3-16
I I I C,- - ) ~I~~~~ I GRN ,.".'\ 1F=""'il tp=""'il
I I I ""- TAILLIGHT I \ .I I I I I
L.- JJ
C88 ~G~ ==_~~J GRN
I I IL.- I
..
L.-=JJ
GRN GRN 87
GRN C86

r
GRN
C85 S461 GRN
CD
I Cl1

-
GRN
GRN GRN
5449 ~ CD
S450
GRN

Cl0

RN

(cont'd)
~---------,---,------------
._----~-------

2..19
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 Ground Distribution: G100, G102, G103, and G104 (Int)
Circuit Schematic (cont'd)

r = = = = = ' = = = = = = = - = = = = = = = = = = = = = = = = = = = = = = = l INSTRUMENT
I RIGHT TURN HIGH PANEL
I SIGNAl. ILLUMINATION BEAM Pages 7-2,

I
iNDICATOR
,....\ IF-,
TACHOMETER
, . .,
liGHTS
, . ., "'_,
iNDICATOR
'
7-9 and 9-10

I '_.I I I '_.I '_.I '_.I

I
I
"eN G~r
~ S592
-"eN "eN
I
I
I
GRN
1mIIIIIII!----__ e 8591 lIIII

~======----=====I r--=-=--
LEFT LEFT RIGHT RIGHT I LEfT TURN SPEEDO- I
HEADLIGHT HEAD- HEAD- HEADLIGHT SIGNAL METER
POSITION LIGHT LIGHT POSITION I iNDICATOR ILLUMIN~ I RIGHT FRONT
LIGHT Page Page LIGHT I ATiON I RIGHT FAIRING TURN SIGNAL/
Page 8-2 8-3 8-3 Page 8-2 I ,-, '-, I MARKER LIGHT POSITION LIGHT

f?-,=?'=,l '-, I '.. . .1

I '_.I '_.I I '_.I I
GRN '_.I I '"'_'.I' ',
I
Page 9-0
,-
Page 9-10

\ .... .1 '
GRN
II...,f== J
GRN GRN
I
I GRN
(iAN GRN I
I GRN GRN
GRN I I
~--.@-@ S174 I @ I
5173 GRNI L= __ .2.RN ~90 = _ _ --1 C68 e67

GRN GRN

GRN
~----@----_.
5471
GRN
LEFT FRONT TURN
SIGNAL/POSITION LEFT FAIRING
C24 LIGHT MARKER LIGHT

'-,
Page 9-10
,.. ..\
Page 9-0
GRN
'_.I '_.I
GRN GRN

C97

GRN

S177 e - _•• lIIIII'lilI

GRN 5476

T08155
on page 2-17.

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 goldwingdocs.com
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 Engine Control System: Asp and SE
Circuit Schematic

WHT
r;:::::::===-==-. 5187 1
r~~~J--------------~ @
IGN/CRlIISE
1 RELAY
I
WHT I
Ib~

REDIWHT

Starting System
(Bank Angle Sensor)

t---=--t::Mt:AIIII"
BLK/Lf GRN C57
-=-~.-._-~

Start/Reverse 1 RIGHT
COMBINATION Charging System
1i""""'--+"';;"-""lI ENGINE 1 SWITCH
STOP
OFF SWITCH 1
1 CARBURETOR CARBURETOR
AIR JET AIR JET
BLK/WHT
BLK/WHT
I C57 ~<&~~NOID
VALVE #'2-
(CAJ)
SOLENOID
VALVE #3
WHT REDIWHT RED

~ ;;~.
"""'! ~"1 "88
1--------- ------~
C'20

,
v
BL

WHT

Cruise
r d
$195

2 15
Ignition
14
'''NM'
:'='OIWH.!

Ir~-~-~---~~-----~~---~-~---~~-~~~~~~1
Switched Ground
<

S d
R

Switched Ground \
1 S~~~I
Control
I Switched \

---::0 --
Switched Switched Switched Output Output Ground I
b=~E=~=«==~2~~. __ =~~_*==_=~6~_=~~_~~_=~=~
__ .1
BLK/WHT
,"uw'l---~~~I :':~r~mv - - - -~" C49

BLK/WHT
--- ----- - - - ~:ru C5. """,,", ~ C33 ,,,'"mont Pa".
Speed Sensor (Tachometer)
Circuit
BLI<JWHT
IGNITION
COILS
II SeeGround
Distribution,
page2-11.
1 I
~ G100
SPARK PLUG$

3...0
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 BLKlLT GRN

C315

BLKlLTGRN

PULSE SECONDARY
AIR INJECTION
(PAIR)
SOLENOID VALVE

r ~-~ =-~-=-1=-~=-~~ =-=~--~-~==-=-~-~==~._~~.~-~-~-=--=-, ENGINE

ft
, Switched Ground I CONTROL
MODULE
\ Over- Side I (ECM)
Neutral 2nd. 3rd. 4th. Drive Stand I Solid-state:
I Input. Input Input Input Input Input I Do not check
L= = = = =~==~=22.. =,.2.9= = 2======= ====~===..11 resistance.
C49 See Starting System,

F 1
Starting System, GRNIWHT GRNIWHT Reverse System,
Reverse System GRN/ORN . S257 €@ ~ iIE:"JIII! ~ pages 3-15 and 3-31.
LT GRNI BLKI WHTI REDI GRNI Indicators
RED YEL RED WHT ORN GRN/ORN} GRNIWHT YEI.jBLK YEI.jBLK
S185 €@ !W:;JllIIII[,;;;~ C
LTGRN/RED GRN/I Cruise 28 C28
~_:::JllllIIIII:::::_::::I. 8186 & !W~:;" 4!!1
LT GRN/RED I S144 •
REDI 1
Control SIDE STAND
SWITCH

LT GRN/RED
-B~-rHT',,:;JG'~
YEL RED WHT ORN C59
GEAR
POSITION
2 3
SWITCH
4
O D l I l - - - - - -....

0100
(cont'd)

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 Engine Control System: Asp and SE
Circuit Schematic (cont'd) --"'------,,~-,,--"'------

r~===~====~===-~~===~==~=====~=~=====,
ENGINE
I CONTROL
I Coolant

,"_", r---- - -:"'":r---::,,"

Ambient Speed Input Fuel Pump MODULE
I Temp. Input Temp. Input Common F ' • "''' , Control Output I (ECM)
b=~======~~====~====~======2======~==J Solid-state:

~"' ~"',,: (63- ~w,: C49

Do not check
resistance.

C60 IGNITION IGNITION

PNKlWHT

I ENGINE
COOLANT
C314
INTAKE AIR
TEMPER-
ATURE
WHTIYEL
PULSE
GENERATOR
~
PULSE
GENERATOR
#2

TEMPER-
(IAT)
ATURE SENSOR
(ECT) CRANKSHAFT
C314
SENSOR
GRN/BLK YEL Y
5301 ~JIIIII!II!!IIIIIIIIIIIII!IIIIIIIIIIIII_d
GRN/BLK

GRN/BLK
~~~~~~~~r::::::M€)
BLU 1IIIIIIid
5196 Asp
Asp With Without
SE CB Radio CBRadio
...
BLKlBLU'f BLKiBLU{
& C17S C1S4
BLKlBLU BLKlBLU BLKlBlU
IF , IN·L1NE IF IN-LINE
I I CAPACITOR D I CAPACITOR D
!!m.~i=..II b"
C184
C178
BLU

C184

1F""-!'i'--'91 FUEL iF""'!'i'-~-'91 FUEL iF""'-=-''''''''9i FUEL

PUMP PUMP PUMP

C186 C127

GRN

IN-LINE IN-LINE
CAPACITOR D CAPACITOR D
GRN

GRN
C191 C191

rI'
L
I
=J
C191

III See Ground

Distribution,
page2-11 .

.. G100
.".~--,,----

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 (cOi1t'd)

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3..3
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 E.ngine Control System: Int
Circuit Schematic
I HOTINON I
r~~=~~~=~~-~-=-====~~=~~~~~='FUS~

I @ I RELAY
B IGN. START I BOX
U FUSE
l 15.0. I
:HT ~, ] I
~===-~S I
rl~T~=~ ~T @II
IGN.
I RELAY I
WHT
I I
IL= ---------------- I

Starting System
(Bank Angle Sensor)
BLKlLT GRN C43

r=~~~~~=~~~~~:~:;s~48~1~~-~~~~~(::1
BLKlLT GRN .& C72
r=== =St;;===l ~~~JINATION BLKlLTGRN' Charging System

I ~~g~NE I SWITCH C1;;;;;mJ~;;w! w:=;r..~.:nt_: ~19

II OFF SWITCH I 5489
I BLKlLTG
CARBURETOR CARBURETOR
AIR JET AIR JET
BLK/WHT (CAJ) (CAJ)
C57 SOLENOID SOLENOID

i
VALVE #2 VALVE #3
REDANHT RED
BLK/WHT C120
S495 .~1 REDANHTl,, ~ED
_ _ _ _ _ _REDANH:l _

r---2~-~~--~~~-~=-~~~=~=~---14-~~~=~1

I Ignition Switched Ground Switched Ground ,

I \
I Switched Switched Switched Switched Output Ground I
b==E======2~== === 25========...21...=====~===gl
----- C49

BLK/WHT GRN

Instrument Panel
(Tachometer)
BLK/WHT
IGNITION
COILS
I See Ground
Distribution,
I page2-17.

SPARK PLUGS
....I G100

3",4
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 BLKlLT GRN

PULSE SECONDARY
AIR INJECTION
(PAIR)
SOLENOID VALVE

BLKlRED
C49
ENGINE
r-~--~·===·=·~·===·=·=·~_·-=·~==--~·~~~~·~·=-·~·=-=-=o=~
8
,
. 1
SWitched Ground .
I CONTROL
MODULE
\ O~er- Side I (ECM)
Neutral 2nd. 3rd. 4th. Dnve Stand I SOlid-state:
I Input Input Input Input Input Input I Do not check
I 22 21 20 19 7 23 resistance.

~~T;~;t~'G"~r"N· -_H-~,",-~"wI· ==--=-=-=-"=--==GR;;; lfl"ftf~ -4-5~;~ng

RED

b~~re::;;y~ S486
RJ
LT GRN/RED
YEL

I B~-r·
RED WHT DRN

I GRN/DRN
S485 ~ ~ Indicators

GRN/
DRN
. GRNIWHT YELJBLK

C28
YELJBLK

SIDE STAND
SWITCH
Indicators

LT GRN/RED H 1 /RED/ GRN/ C59 GRN

YEL RED WHT DRN C28

2 3
GEAR
POSITION
SWITCH
GRN
lI See Ground
Distribution,
1~ I page 2-18.
I
~ G100 (cont'd)

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 Engine Control System: Int
Circuit Schematic (cont'd)
F =. =. ~..~,._,~ ~ - ~ ' = ~ «=« == = ~ -=.-. ~.-. ~ ~ ~ <=- "=»> ~-~ ~ = ~ - ~ '= '= =: = =* "=i ENGINE
I Crankshaft I CONTROL
I Coolant Ambient Speed Input Fuel Pump I UNIT
I Temp. Input Temp. Input Common Control Output I Solid-state:
L~2.-~~",-~ 18 ~~ 10 ----[.2. -~~===t~----~-!.C4.-"~;~~~;::"k
"""'" G'" G~m", W>HNE' -,,~ R_
.------_ C63
C314
C60 INTAKE AIR WHT/YEL WHT/BLU
TEMPER-
IGNITION IGNITION
ATURE (IAT)
PNK/WHT PULSE PULSE
SENSOR
GENERATOR GENERATOR
C314
#1 #2
ENGINE
COOLANT
TEMPER- BLK/BLU
ATURE
(ECT) CRANKSHAFT

I1:
SENSOR VEL BLU

GRN/BLK GRN/BLK 5301 @) VEL J C63

GRN/BLK ~
:;.m';~mw _ _ ~2ii!~
GRN/BLK : : : : : ~ BL_U- . .

S496 p-=:;iIIlllI!!Il:::aII!IIII::;;mc;a1l

With Without
CBRadio C184 CBRadiQ

.~, IN-LINE
I CAPACITOR
ID
~J
BLK/BLU
C185
,...,.--.....,JIlb-.....,. FUEL lI""""-_-d~""""'1I FUEL
PUMP PUMP

C C127

GRN
C183
GRN T GRN See Ground
5468 ~ iIIIIIIIII!IIIIIIIlIII!IIIIIIIlIII4~ Distribution,
GRN

GRN See Ground

5468 ~ i111111111--4~ Distribution,
III page 2-17. page:;H7.
GRN 11II

~ G100
GRN
I
~ G100

3...6
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 How the Circuit Works---
Engine performance is controlled by the engine Intake Air Temperature (IAT) Sensor
control module (ECM). The ECM receives battery
voltage when the engine stop switch is in RUN. The The intake air temperature (IAT) sensor is a resistor
ECM monitors coolant temperature, intake air that increases resistance with a decrease in
temperature, gear position, and engine speed. It temperature and decreases resistance with an
also controls engine operation by operating several increase in temperature. The IAT sensor sends this
solenoid valves, ignition coils, and the fuel pump. resistance signal to the ECM through the GRN/BLK
sensor common and the GRY ambient air
Carburetor Air Jet (CAJ) Solenoid Valves temperature input circuit.

The CAJ solenoid valves receive battery voltage Ignition Pulse Generators
from the ignition/cruise relay with the ignition ON.
They receive a ground control signal from the ECM. The ignition pulse generators are coils that generate
a magnetic pulse when the crankshaft magnet
Pulse Secondary Air Injection (PAIR) passes by the pulse generator pickups. Tllis pulsing
Solenoid Valve signal conveys crankshaft position and engine RPM
information to the ECM. One end of these generators
The PAIR solenoid valve receives battery voltage is tied to the GRN/BLK sensor common. The ignition
from the ignition/cruise relay with the ignition ON. It pulse generator signals are sent to the ECM through
is controlled by a ground control signal from the the WHT/YEL and WHT/BLU circuits.
ECM.
Fuel Pump
Ignition Coils
The fuel pump is a DC motor that receives ground
The three ignition coils receive battery voltage with through the GRN circuit. It receives a voltage control
the ignition ON and the engine stop switch in RUN. signal from the ECM.
Each coil is fired individually when the ECM grounds
the corresponding coil control line. The ECM can Engine Coolant Temperature (ECT) Sensor
vary ignition timing based on other sensor
information. The engine coolant temperature (ECT) sensor is a
resistor that increases resistance with a decrease in
Gear Position Switch temperature and decreases resistance with an
increase in temperature. The ECT sensor sends this
The gear position switch supplies five input circuits resistance signal to the ECM through the GRN/BLK
to the ECM for the positions N, 2, 3, 4, and 00. The sensor common and the PNK/WHT coolant
respective circuits are ground when in the temperature input circuit.
associated gear and open otherwise.

Side Stand Switch

The side stand switch sends a ground signal to the

ECM with the side stand switch in UP and is open in
DOWN.

F" Troubleshooting - - - - - - - - - - -

SYMPTOM DIAGNOSIS
---------{
@ Engine cranks but does not start. @ Do Isolation Procedure 1.
@ Engine runs poorly. @ Do Isolation Procedure 2.

(cont'd)

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 Engine Control System
Troubleshooting (cont'd)

ISOLATION PROCEDURE 1
Note: Perform all checks in order.
If a result is incorrect, go to the test referenced.
If a result is correct, perform the next check.

Ground (GRN)
Continuity to ground.
If not, service GRN circuit for an open.

see 4 & 5
3 Sensor Common (GRN/BLK)
C49 Continuity to ECT sensor, IAT sensor,
Ignition Coil Control (yEUBLU) (ECM)
Battery voltage with ignition switch ON and ignition pulse generators.
26 13
and engine stop switch in RUN.
If not, go to test A. 25 12
5
24 11

23 10 Ignition Pulse Generator #1 Input

(WHT/YEL)
22 9 Resistance to GRN/BLK sensor common
is 400-500 ohms at 68°F (20°C).
21 8 If not, go to test B.
20 7

19 6 4
18 5 Ignition Pulse Generator #2 Input
17 4 (WHT/BLU)
Resistance to GRN/BLK sensor common
16 3 is 400-500 ohms at 68°F (20°C).
If not, go to test C.
15 2
14
6

Fuel Pump Control Output (BLKlBLU)

Momentarily jumping to battery voltage
operates fuel pump.
If not, go to test D.

Ignition Input (BLK/WHT)

Battery voltage with ignition switch ON and
stop engine switch in RUN.
If not, check BLK/WHT circuit for an open.
If circuit is OK, service right combination
switch.

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 ISOLATION PROCEDURE :2
Note: Perform all checks in order.
If a result is incorrect, go to the test referenced.
If a result is correct, perform the next check.
If a box is not numbered, do not check.

r----.--~- ..- - - - - - ' "..- 16

.....l-~

Side Stand Input (GRN/WHT)

Continuity to ground with side stand UP
and open with side stand DOWN.
If not, check GRN/WHT and GRN circuits
for an open or short to ground.
If circuit is OK, service side stand switch. C49
(EeM)

26 13"
e-.
Neutral Input (LT GRN/RED) 25 12
.~- -_.~,-..
Battery voltage with ignition switch ON,
reverse lever in FORWARD, and 24 11
- "-
transmission not in NEUTRAL.
If not, service neutral indicator circuit for
4 23 10 r-sl
an open or short to ground. 22 9
Zero volts in NEUTRAL. Overdrive Input (GRN/ORN)
If not, check LT GRN/RED circuit and _.~~
21 8 Battery voltage with ignition switch ON.
gear position switch for an open. If not, check GRN/ORN and BLKlGRN
- _.•._ _. _ . - - _ . . _.. .........J -... 20 7 fi>- indicator control circuits, and bulb for
~-.~-- . ~ .__.E an open or short to ground.
19 6 Zero volts in Overdrive (00).
2ND Gear Input (BLKlYEL) . If not, check GRN/ORN circuit and
Continuity to ground with transmission in 18 5 gear position switch for an open.
2nd gear otherwise open.
17 4 -
If not, check BLKlYEL circuit for an open
or short to ground between ECM and 16 3
gear position switch.
If circuit is OK, service gear position switch. rl"' 15 2
' - - - - - - - -..- - - - - -J
14 1

3RD Gear Input (WHT/RED)

Continuity to ground with transmission in
3rd gear otherwise open.
If not, check WHT/RED circuit for an open
or short to ground between ECM and
gear position switch.
If circuit is OK, service gear position switch.

4TH Gear Input (RED/WHT)

With ignition OFF, connect test lamp be-
tween terminal indicated and battery volt-
age. Lamp lights in 4th gear and is off in all I----
others.
If not, check RED/WHT circuit and gear posi-
tion switch for an open or short to ground. (cont'd)

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 Engine Control System
F Troubleshooting (cont'd)

ISOLATION PROCEDURE :2 (cont'd)

""'''''
[7
Ignition Co il Control (yEL/BLU)
Resistance to pin 2 (BLK/WHT) is about
4 ohms.
If not, go to test E. - 91 ".
_. Ignition Coil Control (YELIWHT)
C49
Resistance to pin 2 (BLK/WHT) is about
,="-.,, ra (ECM)
4 ohms.
-+ 26 13\-. If not, go to test G.
Ignition Co il Control (YEL/RED)
Resistance to pin 2 (BLK/WHT) is about 25 12
4 ohms. "

If not, go to test F. 24 11 ~ Tachometer Output Signal (YEL/BLU)

u="-,
Continuity to instrument panel
_ .. f14
23 10 connector C66.

Intake Air liemperature (IAT) Sensor Input 22 9

(GRY) 21 8
[13l
Resistance to GRN/BLK ECM sensor I--
common is 2k to 3k ohms at 68°F (20°C) 20 7 Engine Coolant Temperature (ECT)
and 200 to 400 ohms at 176°F (80°C). Sensor Input (PNK/WHT)

--
b-.
If not, go to test L.
•

-". .... __ _-... -

19

18

17
6
5 F*---

4
Resistance to GRN/BLK ECM sensor
common is 2k to 3k ohms at 68°F (20°C)
and 200 to 400 ohms at 176°F (80°C).
If not, go to test K.

a
Engine RP M Output Signal
(Asp and S E models only) (WHT/BLK)
Continuity to cruise control unit
16 3 [12l
connector C135. ~ 15 2
Pulse Secondary Air Injection (PAIR)
--~ ..- "
"--'--'''-
rl'" 14 1 ""-- Solenoid Valve (BLKlRED)

- [10 Battery voltage with the ignition switch ON.

""
- If not, go to test J.

[ Carbureto r Air Jet (CAJ)

Solenoid Valve #2 (REDIWHT)
Battery vol tage with ignition switch ON.
-

_..
If not, go to test H.
--- --
f11
,,-

[1Carbureto r Air Jet (CAJ)

Solenoid Valve #3 (RED)
Battery vo Itage with ignition switch ON.
~..~~.~ goto test I.
-
F----

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 Test A: Ignition Coil Input Test
1. Disconnect C54. Turn the ignition switch ON and place engine stop switch in RUN.
Check that there is battery Yoltage at BLK/WHT (ECM side of C54) circuit.
If yes, go to test G.
If no, service BLK/WHT circuit for an open.

Test B: Ignition Pulse Generator #1 Input Test

1. Disconnect C63 and connect ohmmeter across WHT/YEL and YEL circuits at generator side
of connector. Resistance should be about 400-500 ohms.
If yes, check YEL, GRN/BLK, and WHT/yEL circuits between ECM and ignition pulse generators
for an open.
If no, replace ignition pulse generator.

Test C: Ignition Pulse Generator #2 Input Test

1. Disconnect C63 and connect ohmmeter across WHT/BLU and BLU circuits at generator side of
connector. Resistance should be about 400-500 ohms.
If yes, check BLU, GRN/BLK, and WHT/BLU circuits between ECM and ignition pulse generators
for an open.
If no, replace ignition pulse generator.

Test D: fuel Pump Control Test

Gasoline is flammable and is explosive under certain conditions.
Do not smoke or allow flames or sparks in your working area.
Immediately wipe up any spills.

1. Disconnect C184 (except Asp model) or C185 (Asp model). Momentarily jumper BLU circuit
(fuel pump side) to battery Yoltage. Fuel pump should run.
If yes, service BLK/BLU circuit between ECM and C184 or C185 for an open.
If no, go to step 2.

2. Disconnect C127 (except Asp model) or C1B6 (Asp model). Check GRN circuit (Asp model) or
GRN/BLU circuit (SE model) for continuity for ground.
If yes, service fuel pump.
If no, service GRN or GRN/BLU circuit for an open.

Test E: Ignition Coil Input Test

1. Connect ohmmeter across BLK/WHT and YEL/BLU circuits at ignition coil side of C54.
Resistance should be about 4 ohms.
If OK, service YEL/BLU circuit between ECM and C54 for an open.
If not OK, service ignition coil.

(cont'd)
_ _ _ _ _ _ _ _ _ _ _ _..... ._.._ _...... .....J

3..11
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 Engine Control System
Troubleshooting (cont'd) _ . _ - -
Test f: Ignition Coil Input Test
1. Connect ohmmeter across BLK/WHT and YEL/RED circuits at ignition coil side of C54.
Resistance should be about 4 ohms.
If OK, service YEL/RED circuit between ECM and C54 for an open.
If not OK, service ignition coil.

Test G: Ignition Coil Input Test

1. Connect ohmmeter across BLK/WHT and YEL/WHT circuits at ignition coil side of C54.
Resistance should be about 4 ohms.
If OK, service YEL/WHT circuit between ECM and C54 for an open.
If not OK, service ignition coil.

Test H: Carburetor Air Jet (CAJ) Solenoid Valve #2 Input Test

1. Disconnect C120 (CAJ solenoid valve). Turn ignition ON and check for battery voltage at
BLKlLT GRN circuit.
If yes, go to step 2.
If no, service BLKlLl GRN circuit for an open.

2. Connect ohmmeter across RED/WHT and BLKlLl GRN circuits (solenoid side).
Resistance should be about 32 ohms.
If yes, service RED/WHT circuits for an open between C120 and ECM.
If no, replace CAJ solenoid valve.

Test I: Carburetor Air Jet (CAJ) Solenoid Valve #3 Input Test

1. Disconnect C119 (CAJ solenoid valve). Turn ignition ON and check for battery voltage at
BLKlLT GRN circuit.
If yes, go to step 2.
If no, service BLKlLT GRN circuit for an open.

2. Connect ohmmeter across RED and BLKlLl GRN circuits (solenoid side).
Resistance should be about 32 ohms.
If yes, service RED circuits for an open between C119 and ECM.
If no, replace CAJ solenoid valve.

Test J: Pulse Secondary Air Injection (PAIR) Solenoid Valve Input Test
1. Disconnect C315 (PAIR solenoid valve). Turn the ignition ON and check for battery voltage
at BLKlLT GRN circuit (harness side).
If yes, go to step 2.
If no, service BLKlLT GRN circuit for an open.

2. Connect ohmmeter across BLKlRED and BLKlLT GRN circuits (solenoid side).
Resistance should be about 32 ohms.
If yes, service BLKlRED circuits for an open between C315 and ECM.
If no, replace PAIR solenoid valve.

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 Test K: Engine Coolant Temperature (ECi) Sensor Input Test
1. Disconnect coolant temperature sensor. Connect ohmmeter across sensor terminal.
Resistance should be less than 2k-3k ohms at 68°F (20°C) and decrease with a
temperature increase.
If yes, check GRN/BLK and PNK/WHT circuits for an open between sensor and ECM.
If no, replace sensor.

Test l: Intake Ail" Temperature (IAT) Sensor Input Test

1. Disconnect C314 (IAT sensor). Connect ohmmeter across sensor terminal.
Resistance should be less than 2k-3k ohms at 68°F (20°C) and decrease with a
temperature increase.
If yes, check GRN/BLK and GRY circuits for an open between sensor and ECM.
If no, replace sensor.

3..13
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 Starting System: Asp and SE
Circuit Schematic

~ i
;
:
WHT
;

WHT
I
I
I
I ------~\
I
HT I REDIWHT
L==== - = = = = p.==

W HT f33
1'--------
~ C32
REDIWHT

C11
BLK! LT GRN

See Engine
W HT REDIWHT
0 Control System,
pag e3-0.
BANK
ANGLE
SENSOR
~C57 C92
BLK! BRN
LTGRN
6"===' ~.=
====="'11 RIGHT
GRN
I I COMBINATION
Ie C11 STARTER/ I SWITCH
FREE REVERSE
GRN , PUSH SWITCH I
See Ground
Distribution,
I I w=""~~.....lI"==~=-n REVERSE
page2-11. I FORWARD
REVERSE LEVER SWITCH

G100 YEURED

BLKlWHT WHT/
C57 BLU

YEURED

I YEURED
519B • • J!!W J!!W •

YEURED
" " YEURED
Reverse
System

"""'" - . Radio/Cassette
BLKlWHT
-

K
C92

WHT/BLU . Reverse
............. System

Deck,
CB Transceiver

To STARTER RELAY A ToS303

on page 3-15. on page 3-15.

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 From REVERSE LEVER From STARTER/REVERSE
SWITCH on page 3-14. SWITCH on page 3-14.

~~:r~1
See Power

BLKlWHT C~::h@&
1t C73
BLKlWHT Jl
we,
BLKlWHT

C32
;r=~~~~~~-~"","... STARTER
BLK

RELAY A
Distribution,
page 2-0.

C6G BLKlWHT

r==
1
BLKlWHT

! ===.==, INSTRU-
NEUTRAl.
I MENT
I PANEL
BRN/RED
J C41
BRN/RED
S302 EI c;]m:::;;1II BLK

I =I~ = 1I DIODE
1 INDICATOR 1 F' REVERSE S227 G&. ~ Reverse
See Ground
1
L== =.,_===J
rID 1 D7 IASSEMBLY
Reverse
RED
System
I C312
II Distribution,
pagc210.

I
t= ==' System
LT GRN/RED
VEL/RED IN-LINE ~ G100
C66 C32 FUSE B
LTGRN/RED
I C55
VEL/RED

I ______
BRN/RED

C30
;r=~~~"""'''''''-'~~", REVERSE
VEL/RED
5A
BLK

SWITCH
1" - - _. --...~.. ,,- - RELAY C313
LTGRN/RED
j;-

BLKlREO[ BLU/REO{ C30

C313
GRN/RED

-~LKlR;;r - ~LU/REDI- - ~R-;RED t ""1!IIiI_PN!III!K_

EI
Reverse

r-- :1D:n~~~~~~t:-~~~]~~~~t::y
LT GRN/RED - - - - - - - C32 System

I . ""..- -l.~_·-"·- ~- I

~-:::::: II ~~~~;~ ~~;:L

lf
i ------
::=== Ei S3: ==GRN/:NI=..a
LTGRN/RED
C94
GRN/RED C32 BLK
C325 Engine
~~~ig~

I
LT GRN/RED Control
Closed when System
lever depressed. LT GRN/RED
C326 8186 @D
GRNIWHT
C181 I1f
GRNIWHT
AIf*I"';;g;;;g; ~ Reverse
LT GRN/RED

BLK
Reverse
GRNIWHT ~ System GRN/ORN
System

Indicators C59 STARTER/

REVERSE
LTGRN/RED MOTOR

GEARr= =====i
POSITION I Ar~
2 3
4
I
See Ground
SWITCH N I 't\ I
REVERSE
SWITCH
Distribution, 1,66 ~ 00 I Open in
page 2-12. reverse.
1=== ===..1
=

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 Starting System: Int
Circuit Schematic - - - - - - - - - - - - - - - '~_m" ,_"_ _,

[ HOT AT All TIMES J

1P===I====""1IGNITION
II LOCK II SWITCH [HOT AT All TIME~~
ON '" ~_~
~-~==,

I I ;~ ~ I r = = = 1 = = = = = 1 ~~~~
I I OFFACC I I @ I BOX
I I' - = = = FAN
= =
IGN I
=.,d
I I
TAIl/METER/ I
I BlK I POSITION I
=, I See Power BLK Y C58
I Distribution, ~--~
, FUS E
15A 'I
I I
I I page 2-9, __ S105
I
L = = = __ ~ ~.~,~,~_
= = = F=.dI I
I I
I
I
BLK WHT/YEL I
I
.. -- --- @
TAil
I
I
-------
P--
(MAIN)
RELAY I
" I
I

f I
GRN BRN/WHT
~' _ _' _ _' _ - ' l i l i
=w-=~'
==
~ 5415

I a
a See Power

See Engine
I Distribution,
page 2-7,
0100
D

1
Control System,
WHT RED/WHT page 3-4, BRN/WHT
~H.... ~ BANK

ANGLE IC57
SENSOR C72
BLK!
LTGRN
======"""'1 RIGHT
GRN Engine Control I COMBINATION
/F"""......"""""lfww"..........., STARTER I SWITCH
, C11 SWITCH
GRN
I
See Ground
Distribution,
I I
page 2-19, I BRN/WHT

• 0100 YELJRED

ToC66
on page 3-17,

Radio/Clock

CB Transceiver
(optional)

To STARTER RELAY A
on page 3-17,
-~------------------"---------------------

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 From C72 From STARTER SWITCH
onpage 3-16. on page 3-16.

See Power WHT

Distribution,
BRN/WI·n
page 2-6.
YElIRED BLK
BATTERY

C41
r~~~=d!j-"""" STARTER
RELAY
A

SeeGround
II Distribution,
page 2-16.

... G100

IN-LINE
DIODE
A

Engine
LTGRN/RED Control
GRN/RED System

8486
C94

GRN/RED

C326
CLUTCH
SWITCH
Closed when
lever is depressed. LTGRN/RED BLK

Engine
Control
f32'
System
" ' ' ' ' ' " ' , C93

.: : JI!I I I I I: : :JI!IGRI I IN~/W;gHT~G;I IR! !I NE:/W: 2H! !I€DT S5571ndIicators C59

GRN/WHT 1 YElIBLK
C28 LTGRN/RED

SIDE
STAND
SWITCH ~~==., GEAR
2 3 I POSITION
~ ...... ~ I SWITCH
See Ground Distribution, 6,0D I M STARTER
page 2-18. MOTOR

---"'~------------------- .........J

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 Starting System
How the Circuit Works
Asp and SE Models Int Models
The starting system for the Asp and SE models is The starting system for the Int model is made up of
made up of the following components: the following components:
- Bank angle sensor - Bank angle sensor
- Clutch switch - Clutch switch
- Gear position switch - Gear position switch
- Ignition/cruise relay - IGN relay
- Reverse diode assembly _. In-line diodes A and C
- Reverse lever switch - Side stand switch
- Reverse switch - Starter relay A
- Reverse switch relay - Starter motor
- Side stand switch - Starter switch
- Starter relay A
-- Starter relay B The starter switch receives battery voltage from the
- Starter/reverse motor IGN relay when the ignition is switched ON. The bank
- Starter/reverse switch angle sensor supplies ground to the IGN relay.
@ The starting system is activated when the driver
The starter/reverse switch receives battery voltage
presses and holds the starter switch.
from the IGN/cruise relay when the ignition is
switched ON. The bank angle sensor supplies @ If the gearshift is in NEUTRAL, voltage from the
ground to the IGN/cruise relay. IGN relay is then sent through the coil of starter
relay A to the gear position switch and to ground.
re The starting system is activated when the driver
presses and holds the starter/reverse switch. @ If the clutch lever is depressed and the side
@ Voltage from the IGN/cruise relay is then sent stand switch is UP, voltage from the IGN relay
can also pass through the coil of starter relay A to
through the reverse diode assembly, reverse
switch relay coil, and gear position switch to the clutch switch and the side stand switch.
ground. @ The starter relay energizes and applies voltage
to the starter motor. The starter motor turns to
re The reverse switch relay energizes and
crank the engine.
completes a ground path from the coil of starter
relay A to ground through the reverse diode
assembly, clutch switch, and the side stand
switch.
@ Starter relay A energizes and applies battery
voltage to the coil and contacts of starter relay B
when the reverse switch is in the FORWARD
position.
@ Starter relay B energizes and applies voltage to
the starter/reverse motor. The starter motor
turns to crank the engine.

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 Asp and SE Models
"..".,,,"',,'" ~

SYMPTOM DIAGNOSiS
@ Starter and reverse systems do not @ Weak battery or poor terminal
operate but the neutral indicator operates. connections.
@ Blown RVS Start fuse.
@ Open circuit at reverse lever switch or
..
faulty starter/reverse motor; do test A2.
.~.

@ Poor battery terminal connections.

@ Starter and reverse systems do not
operate and the neutral indicator does not
@ Blown IGN Start Cruise fuse.
operate. @ Open circuit or faulty bank angle sensor,
IGN/cruise relay, starter relay A;
do test Ai .
. =""
-
@ Starter operates in neutral, but not in gear @ Open circuit or faulty reverse diode
with clutch lever depressed and side assembly, clutch switch, or side stand
stand switch UP. switch; do test C1.
""

@ Starter operates with clutch lever @ Open circuit or faulty reverse diode
depressed and side stand switch UP, but assembly or gear position switch;
not with clutch lever released and gear do test 01.
selector in NEUTRAL.
- _.""~,,, .. ,-,,~

@ Neutral indicator does not light, but starter @ Open circuit to instrument panel bulb,
operates with clutch lever released. bulb, or reverse diode assembly.
"""""

Int Models

SYMPTOM DIAGNOSIS

@ Starter does not operate and indicator @ Weak battery or poor terminal.
does not light. @ Poor ground at G1 00.

@ Starter does not operate but neutral @ Open circuit or faulty IGN relay, bank
indicator lights. angle sensor, starter switch, starter relay
A, or starter motor; do test E1 .
;-----_._-------------+---
@ Starter operates in neutral, but not in gear
with clutch lever depressed and side @ Faulty clutch switch, side stand switCh,
stand switch UP. in-line diode C, or open circuit; do test F1.
1----- --------.--+------------------~-
@ Starter operates with clutch lever
depressed and side stand switch UP, @ Faulty gear position switch, in-line diode
but not with clutch released and gear A, or open circuit; do test G1.
selector in NEUTRAL.
@ Neutral indicator does not light but starter @ Open circuit to neutral indicator.
operates with clutch lever released. @ Bad indicator bulb.

(cont'd)
- - - - - - - - - - - - - - - _ . _ - _ . - - - - _......_._-_. ------_._--_.

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 Starting System
Troubleshooting (cont'd) - - - - - - - - - - - - - - - - - - - - -
TEST A1: Power and Ground Reverse lever Switch Isolation
1. Disconnect C92 (reverse lever switch) and with ignition switch ON, check for battery voltage at
BRN/WHT circuit.
If yes, replace reverse lever switch.
If no, service BRN/WHT circuit for an open or short to ground.

TEST A2: Power and Ground Isolation

1. Disconnect C57 (starter/reverse switch) and with ignition switch ON, check for battery voltage at
BLKlLT GRN circuit.
If yes, go to test A3.
If no, go to test A4.

TEST A3: Power and Ground Starter Relay Ii.. Isolation

1. Reconnect C57 and disconnect C41 (starter relay A). With ignition switch ON, check for voltage at
YEL/RED circuit with starter/reverse switch depressed.
If yes, go to step 2.
If no, service YEL/RED circuit for an open. If OK, replace starter/reverse switch.
2. Check for battery voltage at starter relay A BLK circuit from battery.
If yes, go to step 3.
If no, repair BLK circuit.
3. With ignition switch ON, gearshift in NEUTRAL, and reverse lever switch in the FORWARD
position, check for voltage between BLK (battery feed) circuit and C41 BRN/RED using a test light.
If yes, go to step 4.
If no, sevice BRN/RED circuit for an open between starter relay A and 8302.

4. Check for battery voltage across BLK circuits at starter relay A.

If yes, go to step 5.
If no, service BLK circuit between starter relay A and 8227 for an open.

5. Reconnect C41 and disconnect BLK circuits at starter/reverse motor terminal. Connect test light
at starter/reverse motor terminal. With ignition switch ON, reverse lever switch FORWARD and
gearshift in NEUTRAL, press and hold starter/reverse switch. Test lamp should light.
If yes, replace starter/reverse motor.
If no, replace starter relay A.

TEST A4: Power and Ground IGN/Cruise Relay Isolation

1. Disconnect the IGN/cruise relay. With the ignition switch ON, check for battery voltage at both
WHT circuits.
If yes, go to step 2.
If no, service WHT circuit for an open.

2. Check for battery voltage between WHT and RED/WHT circuits.

If yes, go to step 3.
If no, go to test A5.
3. Connect a fused jumper (15A) between WHT and BLKlLT GRN circuit at IGN/cruise relay and
check fa battery voltage at BLKlLT GRN circuit at C57.
If yes, replace IGN/cruise relay.
If no, service BLKlLT GRN circuit.

3..20
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 TEST AS: Power and Ground Bank Angle Sensor Isolation

1. Reconnect the IGN/cruise relay. Disconnect C11 (bank angle sensor). Turn the ignition switch ON
and check for battery voltage at REDIWHT circuit.
If yes, go to step 2.
If no, service REDIWHT circuit for an open.
2. Check for battery voltage at WHT circuit.
If yes, go to step 3.
If no, service WHT circuit for an open.

3. Check for battery voltage between WHT and GRN circuits.

If yes, replace bank angle sensor.
If no, service GRN circuit for an open.

TEST 131: Reverse Switch Relay Isolation

1. Disconnect C30 (reverse switch relay). With ignition switch ON and reverse lever switch in
FORWARD. check for battery voltage at VEL/RED circuit.
If yes, go to step 2.
If no, go to test B2.

2. Check for battery voltage at BRN/RED circuit with starter/reverse switch depressed.
If yes, go to step 3.
If no, service BRN/RED circuit for an open.

3. Check for battery voltage between VEL/RED and BLK/RED circuits.

If yes, go to step 4.
If no, check BLK/RED circuit between reverse switch relay and reverse diode assembly for an
open. If OK, replace reverse diode assembly.

4. Check for battery voltage between VEL/RED and BLU/RED circuits.

If yes. go to step 5.
If no. check BLU/RED circuit between reverse switch relay and reverse diode assembly for an
open. If OK, replace reverse diode assembly.

5. With ignition switch ON, gearshift in NEUTRAL, and reverse lever switch in FORWARD, connect a
fused jumper (15A) between BRN/RED circuit at C30 and ground. The starter should crank.
If yes, replace reverse switch relay.
If no, go to test B4.

TEST 82: Reverse Diode Assembly Isolation

1. Disconnect reverse diode assemby connector. With ignition switch ON and reverse lever switch
in FORWARD, check for battery voltage at BLK/WHT (diode D7) circuit.
If yes, go to step 2.
If no, go to test B3.

2. Check for continuity at VEL/RED circuit between reverse diode assembly and reverse switch
relay.
If yes, replace reverse diode assembly.
If no, service VEL/RED circuit.

(cont'd)

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 Starting System
Troubleshooting (cont'd) - _.."'' .
TEST B3: Reverse lever Switch Isolation

1. Check continuity at BLK/WHT circuit between reverse switch lever and reverse diode assembly.
If yes, replace reverse lever switch.
If no, service BLK/WHT circuit for an open.

TEST 84: Starter Relay B Isolation

1. Reconnect any components disconnected in previous tests. Disconnect C313 (starter relay B
connector). With ignition switch ON and reverse lever in FORWARD, depress starter/reverse
switch while checking for battery voltage at BLK (starter relay A feed) circuit.
If yes, go to step 2.
If no, service BLK circuit for an open.

2. Depress starter/reverse switch while checking for battery voltage at YEL/RED circuit.
If yes, go to step 3.
If no, check in-line fuse B, YEL/RED, and RED circuits for an open.

3. Depress starter/reverse switch while checking for battery voltage between YEL/RED and
GRN/RED circuits.
If yes, go to step 4.
If no, go to test B5.

4. Jumper the BLK and BLK (with PNK) circuits at starter relay B. With gear selector in NEUTRAL
and reverse lever switch in FORWARD, depress starter/reverse switch. Starter motor should crank.
If yes, replace starter relay B.
If no, service BLK circuit between starter motor and starter relay B for an open.

TEST B5: Reverse Diode Assembly Isolation

1. Check GRN/RED circuit continuity between starter relay B and reverse diode assembly.
If yes, go to step 2.
If no, service GRN/RED circuit for an open.

2. With reverse switch in FORWARD, check continuity between GRN/ORN circuit and ground.
If yes, replace reverse diode assembly.
If no, check reverse switch and GRN/ORN circuit.

TEST C1: Clutch Switch Isolation

1. Disconnect C326 (clutch switch connector). With side stand switch Up, check continuity of
GRN/WHT circuit to ground.
If yes, go to step 2.
If no, check GRN/WHT circuit, side stand switch, and GRN circuit at C28 for an open.

2. Disconnect C325 (clutch switch connector). Check continuity across clutch switch with clutch
lever depressed.
If yes, check GRN/RED circuit for an open. If OK, replace reverse diode assembly.
If no, replace clutch switch.

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 TEST D1: Gear Position Switch Isolation
1. Disconnect C59 (gear position switch) and jumper LT GRN/RED circuit to ground. With side stand
switch DOWN, reverse switch in FORWARD, and ignition switch ON, press starter/reverse switch.
Starter should crank.
If yes, replace gear position switch.
If no, check LT GRN/RED circuit for an open between gear position switch and reverse diode
assembly. If circuit is OK, replace reverse diode assembly.

TESTE1: Power and Ground Isolation

1. Disconnect C57 (starter switch) and with ignition switch ON, check for battery voltage at
BU</lT GRN circuit.
If yes, go to test E2.
If no, go to test E3.

TEST E2: Power and Ground Starter Relay A Isolation

1. Reconnect C57 and disconnect C41 (starter relay A). With ignition switch ON, check for voltage at
YEL/RED circuit with starter switch depressed.
If yes, go to step 2.
If no, check VEL/RED circuit for an open. If OK, replace starter switch.

2. Check for battery voltage at starter relay A BlK circuit from battery.
If yes, go to step 3.
If no, repair BlK circuit.

3. With ignition switch ON and gearshift in NEUTRAL, check for voltage between BlK (battery feed)
circuit and C41 BRN/RED using a test light.
If yes, go to step 4.
If no, service BRN/RED circuit for an open between starter relay A and 8373.
4. Reconnect C41 and disconnect BlK circuit at starter motor terminal. Connect test light at starter
motor terminal. With ignition switch ON and gearshift in NEUTRAL, press and hold starter switch.
Test lamp should light.
If yes, replace starter motor.
If no, check BlK circuit for an open. If OK, replace starter relay A.

TEST E3: Power and Ground IGN Relay Isolation

1. Disconnect the IGN relay. With the ignition switch ON, check for battery voltage at both WHT circuits.
If yes, go to step 2.
If no, service WHT circuit for an open.

2. Check battery voltage between WHT and REDIWHT circuits.

If yes, go to step 3.
If no, go to test E4.
3. Connect a fused jumper (15A) between WHT and BlKllT GRN circuit at IGN relay and check for
battery voltage at BlKllT GRN circuit at C57.
If yes, replace IGN relay.
If no, service BlKlLT GRN circuit.

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 Starting System
Troubleshooting (cont'd)
TEST E4: Power and Ground Bank Angle Sensor Isolation

1. Reconnect the IGN relay. Disconnect C11 (bank angle sensor). With the ignition switch ON,
check for battery voltage at RED/WHT circuit.
If yes, go to step 2.
If no, service RED/WHT circuit for an open.
2. Check battery voltage at WHT circuit.
If yes, go to step 3.
If no, service WHT circuit for an open.

3. Check for battery voltage between WHT and GRN circuits.

If yes, replace bank angle sensor.
If no, service GRN circuit for an open.

TEST F1: Clutch Switch Isolation

1. Disconnect C325 (clutch switch connector). With side stand switch Up, check continuity of
GRN/WHT circuit to ground.
If yes, go to step 2.
If no, check GRN/WHT circuit, side stand switch, and GRN circuit at C28 for an open.

2. Disconnect C326 (clutch switch connector). Check continuity across clutch switch with clutch
lever depressed.
If yes, check GRN/RED circuit in-line diode C and BRN/RED circuit for an open.
If no, replace clutch switch.

TEST G1: Gear Position Switch Isolation

1. Disconnect C59 (gear position switch) and jumper LT GRN/RED circuit to ground. With side stand
switch DOWN and ignition switch ON, press starter/reverse switch. Starter should crank.
If yes, replace gear position switch.
If no, check LT GRN/RED circuit in-line diode A and BRN/RED circuit for an open.

3...24
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 3..25
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 Charging System
Circuit Schematic - - - - - - - - - - - - - - - -

~'J
WHT r= =====, FUSE/

BLK
MAIN I
I
GY
IGN. START
I RELAY
I BOX
FUSE B
BATTERY 55A I CRUISE" FUSE I
Starting
System ~~----"
WHT
I!ID======::::::::;,
5187"
WHT
5487""

See Ground
III Distribution, I
I
II page 2-10"
or 2-16"",
I
I
I
~ (;100 I
I
I
I WHT
See Power "-===
Distribution,
page 2-0"
4== = ~ S251
C33 "
or 2-6**
WCia""
WHT BLKlLT GRN
WHT/GRN 1
--------- C11
With
RED/WHT
CBRadio WHT

Engine
Control --iIE::lIIlIE::lII'. S180" 1F"""',di!b--------"I"b,"""""li BANK

~W"G" f80"
BLK
System ANGLE
IN·L1NE SENSOR
CAPACITOR
B
GRN

C11

BLKlLT GRN
C43
GRN
II!ID S165 "
5450""

BLK

GRN

IN-LINE
CAPACITOR
A

II Field
(Rotor)
See Ground
Distribution,
page 2-11"
or 2-19**
* Asp and SE
** Int

3..26
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 How the Circuit Works---~--"~-------'---"----------'

The alternator generates an alternating current (AC)

voltage in its windings as it is driven by the engine.
The integral regulator/rectifier converts this AC
voltage into direct current (DC) voltage to maintain
battery charge and operate the electrical system.

When the engine is running, battery voltage is

supplied to the alternator regulator through the
BLKlLT GRN circuit. The alternator then supplies
voltage to the battery and electrical system through
the WHT circuit. Capacitors are connected to each
alternator terminal to reduce alternator electrical
noise.

,,---------- '---.--'~------------------....,
SYMPTOM DIAGNOSIS
,-----------, -----{--""",,-----------,,------I
@) Battery is overcharged or undercharged. @) Blown main fuse B.
~ Open WHT circuit to battery; open circuit
to regulator/rectifier or faulty alternator;
do test A.

TEST A : Power and Ground Check

1. Check for battery voltage at alternator terminal B.

If yes, go to step 2.
If no, service WHT circuit for an open.

2. Disconnect C44 (alternator) connector. Turn ignition switch ON and check for battery voltage at
BU</LT GRN circuit.
If yes, go to step 3.
If no, service BLKlLT GRN circuit for an open.

3. Reconnect C44 and start the engine. Measure voltage across the battery terminals. It should measure
between 13.5 and 15.5 volts.
If yes, perform a battery load test. See service manual, charging section.
If no, service or replace alternator. See service manual, charging section.

3..27
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 Radiator Fans
Circuit Schematic - - - - - - - - - - - - - - - - - - - - - - - - - ,

I HOTIN ON I
11"'= ===0 FUSE/
I G) RELAYI
I FAN BOX I
I FUSE
1M
I
0= ==_..11

BLKlBLU

C22
BLU BLU

C109
BLU

IF"". . ......., LEFT w==!jb-"9l RIGHT

NOISE NOISE
FILTER FILTER

-+-LEFT iF""'+"""'RIGHT
RADIATOR RADIATOR
FAN MOTOR FAN MOTOR

BLK BU<

LEFT RIGHT
NOISE NOISE
FILTER FILTER

BLK
C110

BLK

BLK

RADIATOR
FAN
TEMPERATURE
SWITCH
Closes at 98° -102°C
-. (208-216°F).

3..28
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 3...29
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 Reverse System
Circuit Schematic
I HOT AT ALL ~;~';~OM FUSE 8
= = = = , FUSE/RELAY
~=~~=-::=~~.., TAIL BOX I
~~~~ I
r======'~=~=~=~=~B~~~=~=~~.~===J
r;==== ~ S187

~:lb~,~ ~HT
I
1 @
I
I See Ground
GRN
BRNIWHT 1g
. C73
See Power Distribution,
page 2-1 .
IGN./
I I
I CRUISE Distribution,
I 'It
WHT
I
l ---f
===
BLKlLT GRN
=====1
RELAY I
I
page 2-12.

JIL Gl00
BRNIWHT

S131 ~
iii
DSee Indicators,
D page 7-0.
E;;!II!

REDIWHT
~ See Engine BLKlBRN~
III Control System, -======= ====='1IIN8TRUMENT

Starting System
n page 3-0. I f1'" = = =0 LCD PANEL I
JIl I I Ground I
UNIT REVERSE I
(Bank Angle Sensor) C57 I I for
Bulb Test
I INDICATOR
fRl
I
BLKlLT GRN I 1= = dI L.:.:.J I
===0 RIGHT L-= =.=.==-==~
STARTER/ r = = I= = '11 COMBINATION WHT/RED ToC3120n
REVERSE I I I SWITCH l.2=;;g;;;;;;;;;z;;:;::z.:;. S276 page 3-32.
SWITCH
I I I
FREE _ PUSH

I
WHT/RED ~I WHT/BLU
a.===+==J I .J1 C66
~-=~,====== ==d

YEURED WHT/RED
WHT/BLU
C57 Headlights ~ ~ 8232

YEURED
YEURED
J
~
5198 YEURED C32 YEURED WHT/RED
"j;f
A
£---~C32
C55
WHT/BLU 1iJ=:z::::::::;g!:2'

~URED Radio/Cassette Deck, WHT/RED WHT/BLU

~ CS T'
ranscelver mm- --
.~.' liIIIIm .$!lIIIlIl
,$Sfi-, il$Slli
-- ---- C42
WHT See Power 3
/r-....p' Distribution StartlFieverse
page 2-0.' SwltOO Input Indicator
BLK
r _i BATTERY (System Start Operation)

I _ I

r--
C41
I -=- I
I-=-
- I ~·.@M:':mm-:'~mm'·~-~·,I

L~J REVERSE
CONTROL
----IC42
LT BLU

To STARTER
UNIT
Sol id-state:
GRN
LT BLU
C32
X
WHT/BLU

t
BRN/ RELAY B Do not check ----~Cl0
~ S165 LT BLU WHT/BLU
RED resistance. --- C35
on page 3-32.
GRN I
8eeGround
Distribution,
I STARTER
RELAY
f"""~~
I Sollid
To 8227 page 2-11. REGULATOR IJ.",,'I!II""~~~"""'II~
on page 3-32.
See Ground
To REVERSE
page2-13.
SWITCH RELAY
on page 3-31.
BRN/RED , r - - __!lid BRN/RED
5302 ~ Gl00 Cl0
~:8~'::8I111E:::1I111111[:;mIlllE:::1I111111[:;mIlllE:::1I111111[:;mIll!l!:::_~
~ £;mw::;we 4ii&iif dJiMiif JW't;ay JW"\At 4W' JIiiiiiiiF JfMt mw;;.m(

3=30
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 I HOTINON I I Reverse
======,
I CONTROL
REVERSE

r== ='====0 FUSE/RELAY I Relay UNIT

I Solid-state:
I
® I BOX Switch
1 Output Side I Do not check
I RVS START I I (Energizes relay for Engine Stand I resistance,
FUSE 1 1 1 second Monitor Switch I
I 5A I then deenergizes) Input Input I
0== =====J
~=~~=~==~= ======d
10

BRNIWHT
- - -;L;;;~~~- ---- C42

yC3
BLU/RED ~ BLU/ ED
C92 S250 ~ E~IIMIII Indicators
BRN/WHT
BLU/RED~
g=---ljI--""""""'D REVERSE ~C22
LEVER YEL/RED BLU/RED
SWITCH
OIL
REVERSE PRESSURE
WHT/ DIODE SWITCH
BLU BLK/ Y C92 ~~E!!.~ Open above

J
1-3 psi

WHT

BLU
WHT ~

BLK/
WHT

~~Kt¥
BLKlWHT

.it
I :::
C32 BLKlWHT YEL/RED
S303 ~ ~~---a(te !!!MIF d§iiiii ;;w( r-*-"~)I)t- .. ~ S310
I 07 I
""===-
YEURED [C32
1 From S302

on
3
p~age-30.
(0 1-0.2 kg/cm 2).

GRNIWHT

rB~~ =====1 INSTRUMENT YEL/RED BRN/RED

I
I
<D NEUTRAL
INDICATOR
I
1
PANEL ---- C30
REVERSE
SWITCH
J [[] I From STARTER RELAY B RELAY
I
i= = J W ge
1-- .~~~
-,
LTLG:/:D = = = 3-32, BLK/RED

LT GRN/RED
66
'Ii( CC 55
UG",.
GR:RED 1.
~~~~~~--
=BL~D
- ~~~~1
1--
-;~U/RE
LT GRN
&
~D me( ~ 11 REVERSE
DIODE
Engine
Control

l~1 ===:==~~=~~===~,~ :lJ~~;EM-

System

I
C32

r ==="""ij
Neutral I REVERSE
CONTROL ~:~/ GRN/
I SWitch UNIT
WHT

GRNIORN I Input 1 Solid-state' .

;;;;w:;:;Jiiiii.
~RNIWHT
8 J Do not che~k Starting
L. =,= C42 resistance. System S 257
C32
LT GRN/RED
LTGRN/RED
S306 ~ ru:::;alll!ll1::;;;l!IIiIIE:d§iiiii~~IIIIIIIIE::"

LTGRN/RED 1
GRNIWHT

GRNIWHT
I C28

GRN/ORN C32 =="""ij SIDE

I
II'"
LT GRN/RED I - I STAND"@
LT GRN/RED Engine I UP DOWN I SWITCH
S186 ~red§iiiii"'. Control
l System
L.= =..9

1
LTGRN/RED GRN C28
C59
LT GRN/RED GRN
See
r= =====0 GEAR

II
Ground
I .i- ~ I POSITION Distribution,
REVERSE N
. ~ I SWITCH page 2-12.
SWITCH I ~ aD I
Open in I H~
reverse. ~ G100
~.~.=J
=
(corst'd)

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 Reverse System
Circuit Schematic (cont'd)
FromS232 From STARTER RELAY A on
on page 3-30. page 3-30.

RED C312

WHT/BlU

RED IN-LINE
WHT/BlU FUSE B
SA
r-;~~""""'1 POWER
CONTROL
RELAY
_A #2

WHT DRN

YELJRED

From STARTER RELAY A on

SPEED page 3-30.
REVERSE
LIMITER RESISTORS
RELAY

BlK

GRY

WHT r----- GRY DRN C312 GRN/RED

<::313

C32
YEL WHT I C _ - = = = G R Y DRN l~:: GRN/RED

""-9-=-====2=='6=-" REVERSE
I PC2 Ground SI,.R PCl I 3~WROL To REVERSE
I Output for Reverse Output Output I DIODE ASSEMBLY
I Control Indicator Control Control I on page 3-31.
IN-LINE
I Signal Circuit 12 Signal Signal I FUSE A
SA
L~~~==_~~~~~_~~_~
C42
VEL
VEL C312 VEL C32
S307 €D llBm_Ilil(~~-IIII(~I!IIIIIII_1IIIIIIIII

VEL
BlK
SPEED BATTERY
LIMITER
FUSE
PNK
Ila-,liI<-II 654\

BLK
BLK C42
REVERSE rI = 1'3 - 'II
II See Ground
Distribution,
STARTER/
CONTROL
UNIT
Monitors
Motor
I
I
page 2-10. REVERSE
MOTOR
I Voltage
IL~~~
J
~ Gl00

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 How the Circuit Works
The reverse control unit takes a series of inputs from System Re$et
external switches and also monitors voltage
System reset is required when vehicle speed
developed at the starter/reverse motor to determine
exceeds 2.5 km/h or when the starter/reverse motor
what outputs should be controlled to make reverse
direction possible. has experienced an electrical motor brake of three
seconds or more. The reverse control unit monitors
When the reverse lever switch is in the REVERSE the starter/reverse motor's voltage, and if it
position, battery voltage is applied to pin 11 determines an excessive speed, it grounds pin 2
(WHT/BLU) and ground is provided on pin 1 (GRN) (GRY) , allowing the speed limiter relay's contacts to
from G100. close. This removes some of the voltage to the
starter/reverse motor.
SY$tem Check
If it determines an electrical motor brake, then the
If power and ground are OK, the reverse control unit
control unit removes all power to the starter/reverse
then starts a system check to look for the following:
motor by de-energizing starter relay A. The reverse
@ Battery voltage applied to pin 5 (BLU/RED) when control unit also provides battery voltage to pin 4
the engine is started and oil pressure is above (WHT/RED), turning the reverse indicator off. Before
1-3 psi. the system may be operated again, the reverse lever
@ Ground present at pin 8 (LT GRN/RED) when the switch must be recycled back to the forward
gearshift sensor is in NEUTRAL. position, applying battery voltage to pin 14
(YEL/RED).
@ Ground present at pin 10 (GRN/WHT) when the
side stand switch is in the UP position.
@ Ground present on pin 12 (YEL) , providing a
ground for the reverse indicator and to establish
that the speed limiter fuse is good.

When the reverse indicator has been illuminated, the

driver knows the system is ready for operation. The
driver presses the starter/reverse switch and battery
voltage is applied to pin 3 (VEL/RED) of the reverse
control unit. As this input is received, a set of outputs
starts controlling other system components.
@ The reverse control unit provides 9 volts for one
second on pin 14 (YEL/RED) to briefly energize
the reverse relay switch. The reverse relay switch
contacts close to provide a one second path to
ground. This pulls the contacts of starter relay A
closed.
@ At the same time that pin 14 outputs to the
reverse relay switch, the reverse control unit
grounds pin 7 (LT BLU), which grounds the
starter relay regulator. This provides the hold-in
current path (BRN/RED) to keep the contacts of
starter relay A closed while the starter/reverse
switch is pushed.
@ Pin 6 (ORN) is grounded by the reverse control
unit when the starter/reverse switch is pushed
and minimum load is applied to the motor.
@ Pin 9 (WHT) is grounded when maximum load is
applied to the motor.

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 Reverse System
~oubleshooting~~~~~~~~~~~~~'~~~~~~~~~~~

SYMPTOM DIAGNOSIS

@ Reverse system doesn't operate and the @ No power to reverse control unit;
reverse indicator doesn't light. do self-test A, pin 11.
o No ground to control module;
do self-test B, pin 1_
@ Bad side stand switch input;
do self-test B, pin 10.
@ No neutral position input from gearshift
sensor; do self-test B, pin 8.
o Incorrect oil pressure switch input;
do self-test A, pin 5.
@ Bad speed limiter fuse (65A);
do self-test B, pin 12.
@ Faulty reverse control unit. Replace with
known good reverse control unit.
._-_._------------- "_._------+---~--_ . _ ---"'._--------,,--
@ Reverse system operates for only a few @ No voltage to starter/reverse motor;
seconds, then quits. Reverse indicator do self-test A, pin 13.
turns off or reverse system doesn't o No control signal to reverse control unit
operate and the reverse indicator lights. from starter/reverse switch;
do self-test A, pin 3.
@ No control signal from reverse control unit
to reverse relay switch;
do self-test A, pin 14.
@ No control signal from reverse control unit
to starter relay regulator;
do self-test A, pin 7.

3..34
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 ---
SYMPTOM DIAGNOSIS
@ Reverse system operates, but very slowly @ Faulty control signal from reverse control
or no power on inclines. unit to power relay control #1;
do self-test A pin 6.
@ Faulty control signal from reverse control
unit to power relay control #2;
do self-test A pin 9.
@ Inoperative power relays; do self-test F.
@ If all the above are OK, check red circuits
to power relay controls for battery voltage
with ignition ON, starter reverse switch in
REVERSE, and the starter/reverse switch
pushed. If voltage is not present, service
circuits for an open.

@ Reverse system operates above 2.5 km/h @ Inoperative speed limiter relay;
down inclines. do self-test A pin 2.
.-
@ Reverse system operates, but reverse @ No control signal from reverse control unit
indicator doesn't light. indicator; do self-test A pin 4.
...

(cont'd)

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 Reverse System
- Troubleshooting (cont'd)

SElf·TEST A: Static Measurements

Note: Leave C42 connected to reverse control unit.
Make all measurements between pin # given in domestic table and ground (pin #1).

Starter Reverse Motor Input (PNK) Starter Relay Regulator Output (LT BLU)
Varying voltage present with ignition Voltage drops from 1.5 volts to a volts with
switch in ON, reverse lever switch in the engine running, reverse lever switch in
REVERSE and starter reverse switch REVERSE and the starter/reverse switch
pushed. pushed.
If not, check in-line fuse A (5 amp). If not, replace the reverse control unit.
If fuse is good, check circuit for an open.
If all measurements are good,
do self-test A pin 11. C42
(HARNESS SIDE)
Oil Pressure Switch Input (BLU/RED)
a volts with ignition switch ON.
If not, check to see if oil pressure
indicator operates.
If so, service BLU/RED circuit for an open.
Power Relay Control #1 Output (ORN)
If oil pressure indicator dosen't light,
Battery voltage with ignition switch ON
replace oil pressure switch.
and reverse lever switch in REVERSE.
If not, replace reverse control unit.
Lightly apply rear brake. Voltage should
drop .5 volts. If not, replace reverse Reverse Indicator Output (WHT/RED)
control unit. With ignition ON, see if indicator
If both measurements are correct, illuminates for bulb test.
go to self-test F. a volts present with the reverse system in
operation.
If not, replace the reverse control unit.
If so, short WHT/RED circuit to ground
and if indicator dosen't illuminate,
service WHT/RED circuit for an open.
Starter/Reverse Switch Input (YEL/RED)
Battery voltage with ignition switch ON
and starter/reverse switch depressed.
If not, service YEL/RED circuit for an open. Reverse Lever Switch Input (WHT/BLU)
If measurements are correct, go to the Battery voltage with ignition switch ON
next diagnostic step. and reverse lever switch in REVERSE.
If not, do self-test C.

-'-~'---~-----------.
Speed Limiter Relay Control (GRY)
Reverse Relay Switch Input/Output Battery voltage with ignition switch ON,
(YEL/RED) reverse lever switch in REVERSE and
Battery voltage with reverse lever switch starter/ reverse switch pushed.
in FORWARD. If not, replace reverse control unit.
If not, do self-test C. Push cycle on level ground to exceed 2.5
9 volts for approximately 1 second with km/h while in reverse operation; voltage
starter reverse switch pushed. will drop to below .5 volts.
If not, replace control unit. If not, replace reverse control unit.
If all measurements are correct, If all measurements are correct,
service YEL/RED circuit for an open. .•_ - - ' go to self-test G.
L-._ _ •. _ _
~, ~ ~

3..36
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 SELF-TEST B: Continuity Test
Note: Disconnect C42 from reverse control unit.
Make measurements between G1 00 (terminal) and desired pin on connector C42.

Speed Limiter Fuse (65 amp) Input Power Relay Control #2 Output
(VEL) (WHT)
Check for continuity to ground G1 00. Battery voltage with ignition switch
If bad, check speed limiter fuse ON and reverse lever switch in
(65 amp). REVERSE.
If good, check (VEL) or (BLK) circuit If not, replace reverse control unit.
for an open. C42 Fully apply rear brake. Voltage
If all measurements are good, (TERMINAL SIDE)
should drop below .5 volts.
go to the next diagnostic step. If not, replace reverse control unit.
If both measurements are correct,
do self-test F.

Ground Input (GRN)

Check for continuity to ground G1 00.
If there is no continuity, repair GRN
circuit for an open.
If OK, go to the next diagnostic step.

Neutral Switch Input (LT GRN/RED) Side Stand Switch Input (GRN/WHT)
With transmission in neutral, check With side stand in Up, continuity
for continuity to ground. should exist to ground G100.
If not, check LT GRN/RED circuit for If not, check GRY/WHT circuit for
an open. an open.
If OK, see if neutral indicator If OK, go to self-test D.
illuminates in bulb test and then
stays illuminated.
If bulb doesn't light during bulb test,
replace bulb.
If bulb only lights for bulb test,
do self-test E.

(cont'd)
-------«_..-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

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 Reverse System
Troubleshooting (cont'd) - - - - - - - - - , - - - - - - - - - -
SElF~TEST C: Reverse lever Switch
Note: Consult service manual for mechanical operations and alignment.
1. With transmission in NEUTRAL and reverse lever switch in FORWARD,
see if the neutral indicator lights.
If yes, go to step 3.
If no, go to the next step.
2. Check for battery voltage at BRN/WHT circuit of reverse lever switch connector C92.
If yes, go to the next step.
If no, service BRN/WHT circuit for an open.

3. With C92 disconnected, check continuity between:

Ell BRN and BLK/WHT circuits with reverse lever switch in FORWARD
Ell BRN and WHT/BLU circuits with reverse lever switch in REVERSE
If no continuity exists, replace reverse lever switch.
If all measurements are OK, go to the next step.
4. Service WHT/BLU circuit for an open.

SElF~TEST 0: Side Stand Switch

1. With the ignition ON and side stand DOWN, check to see if side stand indicator lights.
If yes, go to step 3.
If no, go to the next step.

2. With C28 disconnected, check for continuity between GRN circuit and ground G1 00.
If yes, go to the next step.
If no, service GRN circuit for an open.

3. Disconnect C28 and check continuity between GRN/WHT and GRN circuits on switch side of
connector with side stand switch DOWN.
If yes, go to the next step.
If no, replace side stand switch.

4. With C28 still disconnected, check continuity between YEL/BLK and GRN circuits.
If no, replace side stand switch.

SELF-TEST E: Gear Position Switch Test

1. Disconnect C59. With the transmission in NEUTRAL, check continuity between LT GRN/RED
circuit and ground.
If not, replace the gear position switch.

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 SELF-TEST F: Power Relay Control Test
1. With suspected relay disconnected, apply 12 volts across coil and measure continuity
across contacts.
@ Power relay control #1 - continuity exists
@ Power relay control #2 - continuity does not exist
If incorrect, replace relay.
If OK, go to next step.

2. Power relay control #1; check continuity of BLK circuit from contacts and repair if necessary.
Power relay control #2; check continuity of WHT circuit from contacts and repair if necessary.
If all measurements are OK, go to self-test H.

SELF-TEST G: Speed limiter Relay Test

1. With relay disconnected, apply 12 volts across the coil and measure continuity across
contacts; continuity should exist.
If not, replace speed limiter relay.
If OK, go to next step.

2. Check continuity of WHT circuit and VEL circuit from contacts and repair if necessary.
If OK, go to self-test H.

1. Disconnect starter/reverse motor terminal connector from reverse resistors.

2. Disconnect connector C316 and measure between all wires and terminal from previous step.

3. If resistance is above 2 ohms for any measurement, replace reverse resistors.

3..39
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 Cruise Control
Circuit Schematic
~~~ TIME:._J
r= =~===========~~=~===~-~~
HOT IN ON J
~~~==~~~'FUS~RE~

I ® @ IB~
I
I
~=
STOP FUSE
15.1\
=======1
HORNfTIJRN/
STOP RELAY
FUSE
15A
S106
BU<
~ Bll!!_" See Power
Distribution,
page 2-2.
I
I
I
I
I
CD
HORNfTURN
I
I
--~-----~-------_._,- _ _ 0+ I RELAY
I I
I I
I WHT/GRN I
~=~== =======~== ~~~~~~==d
S109 ~ :.z:: ::::z:: ~
See

11'J
GRN
WHT/GRN N Power
S107 ~ :.z::::::z:: ~ Distribution,

r
page 2-2. C192
WHT/GRN
NS108 I I
... ..._ ...... ~ too,

WHT/
RED
w,,,
GRN

C57
~'A GRN 1I See Ground
C81
Distribution,
WHT/
GRN R C320
FRONT
WHT/
GRN
tr='¥=m"'ll REAR
GRN
I
I
page 2-12.

BRAKE BRAKE
LIGHT LIGHT ,~ G100
SWiTCH SWITCH
C321
GRN/YEL

C57

GRN/YEL

r~~--u ENGiNE
I Crankshaft I CONTROL
Speed I MODULE
I output J (ECM)
I See Ground
Distribution,
U- - - =
C49
Solid-state: Do not
check resistance.
GRN/RED I page 2-12.
~ G100
GRN/RED WHT/BLK
~

i
S241 • -;;wr Brake Lights

GeM"

GRN/YEL [ _ . - - - - - - - _. - - - - ..-. _. - - - - - - - - - - - - - -~~B: i C33

-------------------------------j~~
F====~·~=====-=-=~-=·~~·=~·~=====~~~=======~ CRUISE
I Brake RPM I CONTROL UNiT
I Disable Input I Solid-state:
Input Do not check
I I resistance.
L====~=~=========~~=======~~==_=~~=~d

4..0
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 [ HOTINON J S180 BLKlLTGRN
R::JllllllIIIr.:::lIIII ~
r ======'11 FUSE/ lfllEamI!amI!lZ:2IIII. tl
I QY N
I RELAY BLKlLT GRN
Engine
IGN. START I BOX Control
I CRUISE FUSE I
• BLKlLT GRN
S181 tl iiii!iiiiiF ..........-::lI
System

1
..
I 15A J
II. BLKlLTGRN
~====
C57

~ - r;~~:~~~-@~-1~~~
I IGN./ I BOX
IF"""~~~"""'~-~--~.....,RIGHT
Starter/
Reverse
---'!=_.Switch
......
COMBINATION
SWITCH
ENGINE
I CRUISE I STOP
... ~ OFF
I RELAY I OFF SWITCH

I I RUN

WHT ~;;~== BLKlWHT

C33 1t C32 BLKlLT GRN
WHT
1t --___
RED/WHT A
Cll BLKlWHT
,
C57

RED/WHT
F"""'~---~_..L"""""'lI BANK
W~HT • •.• :- BL~HTi S188
ANGLE
!!...._--'IIIIF'~-~"""'""'" SENSOR
GRN S
I BLKlWHT Engine
S 195 tl R::JllllllIIIr.:::lIIII ~ Control

GRN

I
Cll

See Ground
Distribution,
To RIGHT COMBINATION
SWITCH on page 4-2.
WHT

WHT
n
II
~ C66
C55
System

I page 2-11.
WHT

F
·~ G:_~O~ 1'"~tl

*
.. "':.._.= := S240
WHT
r -'~~=-~--------- ~-_~'!fiI&
WHT
---------~-, INSTRUMENT

I ~~~!:,ISE r=s;'ed'o';;p';;=-;u;===;;bl b~~T ~CN~,UISE II

PANEL
I
I
L
INDICATOR

~~====~~~==
I (from Speed Sensor) Test
'-===f===f
WHT/BLK
Test J Solid-

=-~
state
BLU/wHT
_==
==if
BLU/ORN
--~~-=-_~~_=J
BLU/ORN
INDICATOR

BLU/WHT C73 - - - C16

BLU/ORN

...: ... ...

J
... ....
po

...:: tl S238
J!!!!!i[;diiiI

l
tl S239 BLU/ORN

I II
SLU/WHT --------- C66
-. BLU/wHT BLU/ORN

WHT/BLK YEL/RED BLU/WHT I C55

BLU/ORN
C72

YEL/RED[SLU;::I- - - - - - - SLUt;;!' C33

Turn Signals Rad io/Cassette

--
fl!&~~ - - ~--=-~~ = = ~
---------Jl
= =- =- - =
C135
CRUISE S!II8lW' ~
Deck I Wheel SET ON. I CONTROL UNIT
Speed Indicator Indicator Solid.state:
I Input Control I Do not check
'=-====-=-= = ~ = --"=' ~ = = ilimlIIll - - ~ resistance. (ccmt'd)

4..1
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 Cruise Control
Circuit Schematic (cont'd) - - - -
Handlebar Illumination From S188
on page4-1.

BRNiWHT
1 WHW'C138
IC57 WHT
r'==
I CRUISE
I CRUISE CONTROL CRUISE CONTROL
I SWITCH ON RESUME/
ACCEL
SET/
DECEL
SWITCH
I ILLUMINATION SWITCH
(SE ONLY)
I
1
~== ~-~=~~~~ =~==~====~=~=
GRN YC57 BLKlYEL
C138
• BLlVYEL l (

BLK/BLU r
Handlebar Illumination

BLK/BLU 1t C138
Mit :AI!!!': Mit

BLKlYEL'it C94
~
:v: i-:a!!!::3!IIIIIIE::JiIIIII!!!::3!IIIIIIE~
BLKlYEL
S245

JlC318 JlC322
P[l~ FRONT CLUTCH WHT/BLU WHT/yEL
I
BRAKE CRUISE
I AlII LIGHT/ CANCEl
:..... CRUISE SWITCH
l(C319 CANCEL C323
GRNIWHT & SWITCH GRN/BLU
'l( C138 W' C94
GRNIWHT.i. GRN/BLU A

GRNIWHT C132 GRN/BLU1 = = = = BLKIY~=-=wHT/B~HT/YELI~~:5

THROTTLE r
Ca~;j = = = =Ig;;'itk;'n= = = ~ Re~;;/= -- S;t/= = = - - = = ="1 CRUISE
CANCEL Input I Accellnput Decellnput CONTROL
SWITCH UN~T 1
Open with 1 4th Gear Input OD Input Solid-state: J
throttle turned L. _ == '=* -= -= -=mII-= =. = ~ ~ -= -= -= = = =- =- ~ __ .~. -= -= =- = = Do not check
past idle rest position. REDIWHT - - -G;;:;/ORN C135 resistance.
1( C132 ----- C33
GRNIWHT.l Engine REDiWHT REDIWHT If GRN/ORN GRN/ORN1fEngine
C133 Control ~ &M& ~~ S144 S185 ~I:'JIII!~ Control
GRNIWHT System 1 REDIWHT GRN/ORN 1 System

g:~~:~AKE
SWITCH
r-:=~::\
I 4
-- j~!..l~~o"
I SWITCH
11 $ I
1 00 I
0== =======~==._

BRN/RED

....;;;:=.;;;;;;;.;;;;;;;,;;;;;;;,;;;;;;.;;;;;;;;.;;;;;;;,;;;;;;;.;;;;;;;;;;;;.;;;;;;;,;;;;;;;,;;;;;;.;;;;~""'il
CRUISE
BRN/RED
VALVE
RELAY

BRN/RED r --------------
-======='===========--==, CRUISE
GRN/BLK
~R;B~ ~~:5
BRNIW

I Cancel Relay I CONTROL To C131

I Input Ground I UNIT on page 4-3.
I I Solid-state:
@========== == Do not check resistance.

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 ACTIVATOR
CABLE

From CRUISE
VALVE RELAY
on page 4-2.

CRUISE
CONTROL
ACTUATOR

BRNI
WHT

BRNI
CRUISE
WHT CONTROL
VALVE
UNIT
C131
VENT VACUUM
0-_ VALVE VALVE

I
VACUUM
SOURCE

----:~~ C131

- - - -BRN/} C33
GRN BRN
BLK
_____ C135
r~==~========, CRUISE
I Vent Valve Vacuum Valve I CONTROL
Switched To Switched To I UNIT
I Ground Ground I Solid-state:
I Ground Do not check
bw============J resistance.
C135
GRN
I See Ground
S165 •

GRN
1 DllHlIIIIIIIIII mill! mill! mill! ~

C33
Distribution,
page2-11.

r1
GRN

~=I lC192 I=lc191

l =J
L= =J L=
GRNI GRN

See Ground See Ground

II Distribution,
page2-12. IIDistribution,
page2-11.

.& G100 .& G100

._-------------_._---------------------'

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 Cruise Control
How the Circuit Works
The cruise control system uses the following The cruise control unit maintains vehicle speed by
components to control vehicle speed in the cruise energizing the cruise valve relay and grounding and
control mode: opening its vacuum vent and valve control lines.
- Clutch cruise cancel switch Engine vacuum is then channeled through the cruise
-- Cruise control actuator control valve unit to the cruise control actuator. The
- Cruise control switch actuator pulls on the throttle linkage to increase
- Cruise control unit vehicle speed. When the vehicle set speed is
- Cruise control valve unit reached, the unit opens the vacuum valve control
- Cruise valve relay line and allows vacuum in the cruise control valve
- Engine control module (ECM) unit to hold the throttle linkage to maintain vehicle
- Front brake light/cruise cancel switch speed. If the unit detects vehicle speed increasing
- Gear position switch past the set speed, or if the SET/DECEL switch is
- Instrument panel held, the unit removes ground from the vent valve
- Rear brake cruise cancel switch control circuit. Vacuum in the cruise control actuator
- Throttle cancel switch is decreased, the throttle cable tension is relaxed,
and the engine speed slows.

The cruise control unit receives several signals to The cruise mode is disengaged by applying either
operate. It must receive a battery voltage signal from brake, releasing the clutch, or moving the throttle to
the engine stop switch and the cruise ON switch at its OFF. When either brake is applied, or if the throttle is
ignition input. There must be a battery voltage signal moved to OFF, battery voltage is removed from the
at the cancel input that receives voltage from the cancel input. Thisforces the unit to drop out of the
front brake light/cruise cancel switch, throttle cancel cruise mode. There is also a redundant brake
switch, and rear brake cruise cancel switch. These disable input to the cruise control unit. When the
switches complete the current path when both brake lights come on, battery voltage is applied to
brakes are released and the throttle is not OFF the cruise module to disengage the cruise control.
(pushed clockwise). The cruise control unit has a 4th
gear input and an overdrive (00) input. The module
must recognize a ground signal at its 4th gear or
overdrive (00) inputs to enter the cruise mode.

When the cruise ON switch is engaged, the cruise

control unit grounds the cruise ON indicator control
line and the cruise ON indicator lights. The system is
activated when the unit receives a momentary
voltage signal at its SET/DECEL input. The unit
grounds the cruise SET indicator control line. It then
looks at the speed signal outputs from the
instrument panel and the engine speed from the
ECM.lt uses the ECM speed signal to control vehicle
speed and the instrument panel speed signal to
determine if the vehicle is above 30 mph and below
80 mph.

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 Troubleshooting

SYMPTOM DIAGNOSIS

@ Cruise ON indicator does not light briefly @ BLU/ORN circuit open.

when stop engine switch is first turned to @ Faulty instrument panel.
RUN, but lights w ith cruise on.
" ".- -~--,,-->"" "
@ Cruise SET indicator does not light briefly @ BLUIWHT circuit open.
when stop engine switch is first turned to @ Faulty instrument panel.
RUN, but lights w ith cruise set.

@ Any other cruise related syrnptom. @ Perform Isolation Procedure.

-

(ccmt'd)
>"

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 Cruise Control
Troubleshooting (cont'd)
ISOLATION PROCEI::HJRE
Note: Disconnect connector C33. Perform all checks in order.
If a result is incorrect, go to test referenced. If the result is correct, perform the next check.
Throttle is at the cruise cancel mode position when the throttle is turned clockwise past the rest position.

f7l
rL.....-,----~_·,---- ,
RESUME/ACCEL Input (WHT/BLU)
Battery voltage with ignition switch ON,
Clutch Cruise Cancel Input (GRN/BLU) engine stop switch in RUN, cruise switch
Battery voltage with ignition switch ON, ON, and RESUME/ACCEL switch pressed.
engine stop switch in RUN, cruise switch If not, go to test F.
ON, and clutch lever pulled in. r'" Zero volts with RESUME/ACCEL switch
If not, go to test D. released.
Zero volts with clutch lever released. If not, service cruise control switch.
If not, service clutch cruise cancel switch.

C33 SET/DECEL Input (WHTNEL)

(FEMALE HALF) Battery voltage with ignition switch ON,
I . I engine stop switch in RUN, cruise switch
ON, and SET/DECEL switch pressed.
Vacuum Valve Control (BRN/BLK)
If not, go to test E.
Battery voltage with ignition switch ON,
Zero volts with SET/DECEL switch
engine stop switch in RUN, cruise switch released.
ON, front brake released, rear brake
If not, service cruise control switch.
released and throttle not in cruise cancel
mode position and GRN/BLK wire of
cruise valve relay grounded.
Approximately 87Q between BRN/BLK Vent Valve Control (BRN)
and ground with ignition OFF. Battery voltage with ignition switch ON,
If not, go to test G. engine stop switch in RUN, cruise switch
ON, front brake released, rear brake
released, throttle not in cruise cancel
mode position, and GRN/BLK wire of
Cruise Cancel Input (BRN/RED) cruise valve relay grounded. Approx. 105Q
Battery voltage with ignition switch ON, between BRN and ground with ignition OFF.
engine stop switch in RUN, cruise switch If not, go to test H.
ON, front brake released, rear brake
released, and throttle not in cruise cancel
mode position. Cruise ON Input (BLKNEL)
If not, go to test B. Battery voltage with ignition switch ON,
Zero volts with the throttle in cruise cancel engine stop switch in RUN and cruise
mode position or either brake operated. switch ON.
If not, service suspect switch. If not, go to test A.
~'"~~._"~,, -

Ground (GRN) Cruise Valve Relay Control (GRN/BLK)

Continuity to ground. F--'~"--~ Battery voltage with ignition switch ON,
If not, service GRN circuit for an open. engine stop switch in RUN, cruise switch
~"'''~-- .- '._- '- ON, front brake released, rear brake
released, and throttle not in cruise cancel
mode position.
If not, go to test C.

4.,.6
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 Brake Disable Input (GRNNEL)
Battery voltage with ignition switch ON,
front or rear brake engaged.
If not, service GRNNEL circuit for an open.
C33
(FEMALE HALF)

16
4TH Gear Input (RED/WHT)
Battery voltage with ignition switch ON, Engine RPM Input (WHT/BLK)
engine stop switch in RUN, and gear shift Continuity to ECM. OPen to ground.
out of 4th gear. If not, check WHT/BLK circuit for an open
If not, check RED/WHT circuit and gear or short to ground between ECM and
position switch for an open or short to C135.
ground.

Overdrive (00) Input (GRN/ORN)

Battery voltage with ignition switch ON Cruise ON Indicator Control Output
and gear shift out of overdrive. (BLU/ORN)
Zero volts in overdrive. Battery voltage with ignition switch ON
If not, check GRN/ORN circuit and gear and engine stop switch in RUN.
position switch for an open or short to If not, go to test J.
ground.

13
Cruise SET Indicator Control Output
(BLU/WHT)
Battery voltage with ignition switch ON
and engine stop switch in RUN.
If not, go to test I.

Wheel Speed Input (YEURED)

Signal varies from 4 volts or greater to
o volts as front wheel is turned slowly
with ignition switched ON.
If not, go to test K.

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 Cruise Control
F Troubleshooting (cont'd)
ISOLATION PROCEDURE (cont'd)

C33
(FEMALE HALF)

Start engine and allow to run for 30

seconds to allow vacuum to build in
accumulator. Stop engine, put ignition
switch ON, engine stop switch in RUN,
and ground GRN/BLK wire of the cruise
BAN/BLK BRN
valve relay. Jumper BRN circuit to ground.
Put cruise switch ON. Jumper BRN/BLK
circuit to ground for about 3 seconds, then
disconnect and observe if throttle turns
and holds. I
If not, go to test L. ~/

C33
(FEMALE HALF)

With ignition switch ON, cruise switch

ON, engine stop switch in RUN, and
ground GRN/BLK wire of the cruise valve
relay, remove jumper at BRN circuit while
observing throttle. Cruise control actuator
releases throttle.
If not, go to test M. BRN

Note: If all isolation checks are correct, check wires between cruise
control unit and male half of C33 for opens or shorts to ground.
If all circuits are OK, replace cruise control unit and road-test.
If not OK, speed signal from ECM may be at fault.

4-8
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 l~$t A: Crui$~ Unit Pow~r

1. Turn ignition switch ON and engine stop switch in RUN.

Check for battery voltage at C138 WHT circuit.
If yes, go to step 2.
If no, service WHT circuit for an open.
2. With ignition switch OFF, connect an ohmmeter across BLKlYEL and WHT circuits at C138.
Check for continuity with cruise switch ON.
If yes, service BLKlYEL circuit for an open between C33 and right combination switch.
If no, replace right combination switch.

l~$t B: Cruis~ Unit Can©~1 Input lest

1. Disconnect C132 (throttle cancel switch). Turn ignition and cruise switches ON and the engine
stop switch to RUN.
With front brake released, check for battery voltage at GRNIWHT circuit.
If yes, go to step 2.
If no, check front brake light/cruise cancel switch, BLKlBLU and GRNIWHT circuits for an open
between C132 and C138. Replacelrepair as necessary.
2. Reconnect C132 and disconnect C133 (rear cruise brake cancel switch). Turn ignition and cruise
switches and the engine stop switch to RUN. With front brake and throttle released, check for
battery voltage at GRNIWHT circuit.
If yes, check rear brake cruise cancel switch and BRN/RED circuit for an open between C133
and cruise control unit. Replace/repair as necessary.
If no, check throttle cancel switch and GRNIWHT circuit for an open between throttle cancel
switch and rear brake cruise cancel switch. Replace/repair as necessary.

l~st C: Cruis~ Relay Valve Input lest

1. Disconnect cruise valve relay connector. Turn the ignition and cruise switches ON and the
engine stop switch to RUN. Release front and rear brakes and release throttle. Check for battery
voltage at BRN/RED coil circuit.
If yes, check relay for an open coil and GRN/BLK circuit for an open between cruise valve relay
and C33. Replace/repair as necessary.
If no, service BRN/RED circuit for an open.

l~st D: Clutch Cancel Input lest

1. Disconnect C323 (clutch cruise cancel switch). Turn the ignition and cruise switches ON, and the
engine stop switch to RUN. Check for battery voltage at BLKlYEL circuit.
If yes, check clutch cruise cancel switch and GRN/BLU circuit for an open between C323 and
C33. Replace/repair as necessary.
If no, service BLKlYEL circuit for an open.

(cont'd)

4-9
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 Cruise Control
Troubleshooting (cont'd)

Test E: SET/DECEl Switch Continuity Check

1. Connect ohmmeter across WHT and WHTNEL circuits at C138. Check for continuity with the
cruise switch ON and SET/DECEL switch held on.
If yes, service WHTNEL circuit for an open between C138 and C33.
If no, replace the cruise control switch.

Test f: RESUME/ACCEl Switch Continuity Check

1. Connect ohmmeter across WHT and WHT/BLU circuits at C138. Check for continuity with the
cruise switch ON and RESUMEIACCEL switch held on.
If yes, service WHT/BLU circuit for an open between C138 and C33.
If no, replace the cruise control switch.

Test G: Vacuum Valve Control Check

1. Disconnect C131 (cruise control vent valve unit). Turn ignition and cruise switches ON and
engine stop switch in RUN and ground the GRN/BLK wire at the cruise valve relay. Release
throttle and both brakes. Check for battery voltage at BRNIWHT circuit.
If yes, go to step 4.
If no, go to step 2.
2. Disconnect cruise valve relay connector. Check for battery voltage at BRN/RED circuits.
If yes, go to step 3.
If no, service BRN/RED circuit for an open between cruise valve relay and rear brake cruise
cancel switch.
3. Check for continuity at BRNIWHT circuit between C131 (cruise valve control unit) and cruise
valve relay.
If yes, replace cruise valve relay.
If no, service BRNIWHT wire for an open.
4. Check continuity to ground at C131 GRN circuit.
If yes, go to step 5.
If no, service BRNIWHT wire for an open.
5. With C131 disconnected, check continuity between BRNIWHT and BRN/BLK circuits at cruise
control valve side of C131.
If yes, service BRN/BLK circuit for an open between C33 and C131.
If no, replace cruise control valve unit.

Test H: Vent Valve Continuity Check

1. Disconnect C131 (cruise control valve unit) and check continuity between BRNIWHT and BRN
circuits at cruise control valve side of C131.
If yes, service BRN circuit for an open between C33 and C131.
If no, replace cruise control valve unit.

--------------
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 1. Put engine stop switch in RUN and turn ignition ON. Check that cruise SET indicator lights
briefly.
If yes, service BLUIWHT circuit between instrument panel and cruise control unit.
If no, go to step 2.
2. Disconnect C66 (instrument panel). Turn ignition ON and put engine stop switch in RUN.
Check for battery voltage at WHT circuit.
If yes, go to step 3.
If no, service WHT circuit for an open.
3. Connect ohmmeter between WHT and BLUIWHT circuits at instrument panel half of C66.
Check for continuity.
If yes, check BLUIWHT circuit for an open between C66 and C33.
If no, check bulb, WHT circuit, and BLUIWHT circuit for an open. Replacelrepair as necessary.

Test J: Cruise ON Indicator Control Test

1. Put engine stop switch in RUN and turn ignition ON. Check that cruise ON indicator lights briefly.
If yes, service BLU/ORN circuit between instrument panel and cruise control unit.
If no, go to step 2.
2. Disconnect C66 (instrument panel). Turn ignition ON and engine stop switch in RUN.
Check for battery voltage at WHT circuit.
If yes, go to step 3.
If no, service WHT circuit for an open.
3. Connect ohmmeter between WHT and BLU/ORN circuits at instrument panel half C66.
Check for continuity.
If yes, check BLU/ORN circuit for an open between C66 and C33.
If no, check bulb, WHT circuit, and BLU/ORN circuit for an open. Replace/repair as necessary.

1. Disconnect C73. With ignition switch ON, check for about 5 to 10 volts at WHT/BLK circuit.

C73
(FEMALE HALF)

WHT/BLK

If yes, check WHT/BLK and YEURED circuit for an open or WHT/BLK wire between C73 &
instrument panel for an open.
If no, go to step 2.

(corat'd)

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 Cruise Control
Troubleshooting (cont'd)

Test K: Speed Signal Input Test (cont'd)

2. Turn ignition OFF and connect ohmmeter to YEURED circuit at the female half of C33.
Check for a short to ground.
If yes, go to next step.
If no, go to step 5.
3. With ohmmeter connected from previous step, disconnect C99 (turn signal cancel control unit)
and check again for. the short to ground.
If yes, go to step 4.
If no, service turn signal cancel control unit for a short to ground.
4. With ohmmeter connected from previous step, disconnect radio/cassette player connector C1
and check again for the short to ground.
If yes, service the WHT/BLK and YEURED circuit for a short to ground.
If no, service radio/cassette player for a short to ground.
5. With ohmmeter connected from previous step, check the male half of C33 for a short to ground.
If yes, service the YEURED circuit for a short to ground.
If no, replace the cruise control unit.

Test l: Cruise Control Actuator Vacuum Input Test

1. Connect vacuum gauge at source to cruise control valve unit.

Start engine and check for vacuum.
If yes, go to step 2.
If no, service vacuum line system for a blockage or leak.
2. Stop engine and connect vacuum pump to cruise control actuator. Operate vacuum pump and
check that the throttle turns, holds, and releases as vacuum is applied, maintained, and
released.
If yes, go to step 3.
If no, check vacuum line to cruise control actuator for blockage or leaks. Replace/repair as
necessary.
3. Disconnect C131 and check for continuity to ground at GRN circuit.
If yes, replace cruise control valve unit.
If no, service GRN circuit for an open.

Test M: Cruise Control Actuator Vent Input Test

1. Connect vacuum pump to vacuum source line of cruise control valve unit. Jumper BRN circuit
to ground. Jumper GRN circuit to ground. Jumper BRN/BLK circuit to ground.
Jumper BRNIWHT circuit to battery voltage. Operate vacuum pump and allow time for cruise
control actuator to pun throttle cable. Disconnect jumper at BRN/BLK circuit. Cable actuator
should hold throttle cable. Disconnect jumper at BRN circuit. Cable actuator should release
throttle. If yes, check BRN circuit for high resistance between C33 and C131.
If no, replace cruise control valve unit.

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 Horn: Asp and SE
Circuit Schematic ------- ~,~--,--",---------- -----

C=
"--I-
[~OT IN ON HOT ~T All TIMES I
r=========EilKT=========== ~=====l~~~~

II gfs~r;~~~~,
page 2-2.
S105 ~~~~;:~&~
FUSE
I BOX
I
I BlK 15A I
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I (j) I
I HORW I
I TURN I
I RELAY I
I
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1 1=====wHwilNlf======='"
~I
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I Distribution,'" - - - I I'
I page 2-12. I N See Power Distribution,
page 2-2.
GRN I LI
I WHT/GRN 1'1
11.========== ==J 5110 ~? ?
RN
;HT2: .... ~ Turn Signal Cancel
N Control Unit
WHT/GRN 1
C93
WHT/GRN

I
I
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,
= = = = = = 1 LEFT
HORN
SWITCH
COMBINATION
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~=,=== =====..Il

C93
lTGRNl
lTGRN lTGRN
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C191
GRN GRN
GRN 5167
- - - - - @&J!3!11111111111[1IIIIIIIII[1IIIIIIIII[1IIIIIIIII[1IIIIIIIII[1IIIIIIIII[1UI
See Ground
Distribution, ~
page 2-12. GRN ~ _ _ -.&
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Distribution,
S168@&IIIIIIIIII[IIIIIIIIII[IIIIIIIIII[!IIII!G!IIII!R!IIII!NIIIIIIIIII[IIIIIIIIII[_44page2-11.

GRN I
4! G100

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 Int

[~OT IN ON~ L'H~AT ALL TIMES =J

r=:::~=====T========
I
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Distribution
page 2 9 -. 'I . . . . -Qllllllt. S105

BLK

BLKANHT
~========l~~
HORNtruRNI
STOP
FUSE RELAY
15A
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Distribution, '-_lIIIIIIIOO.
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I 8406 ~~~~~~
~. ee ower
Distribution,
I page 2-17. I WHT/GRN page 2-9.

I
a~~~~.~,~~~~~ ~~J
I WHT/GRN
C93

1"""""',
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HORN
LEFT
COMBINATION
GRN J SWiTCH I SWITCH

I
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LTGRNI C93

LTGRN LTGRN
1ffiIIIIIIIIiI-~~---~----I!IIiiiIiR-_1IIilIII
5501

LEFT RIGHT
HORN HORN
(Optional)

GRN GRN

See Ground See Ground

Distribution, 1iP--@) 8154 5156 @)-_.~ Distribution,
page 2-18. page 2-17.
I See Ground Dlstn
··butlon,
.
l pages 2-17 and 2-18. GRN

I
Illlli!lIIIIIIIOOlIIIIIIIOO!IIIIIIIIIIi!lllllllllli!lllllllllli!lllllllllli!lllllllllli!lllllllllliEE ~
GRN
&
S467
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" See Ground
5151 " Distribution,
GRN page 2-17.

Im ~

See Ground
GRN Distribution,
5468 @) _&III!&III!&III!&III!&III!&III!~41l111 page 2-17.

GRN I
~ 0100

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 Clock: Asp and SE
Circuit Schematic ~~'~------------------------,

[~ HOT AT ALL TIMES ~ I HOT IN ON, ACC OR PARK

r~==' ~"='-==~=~=~.-. .._ ..~===.==='==.=- ~~~~=., FUSE/

I ® @ I RELAY
BACK UP ACC I BOX
I FUSE FU5E I
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~·~~~tmD
REDIYEL
LT
REDIYEL C89 GRN
51 01 ~ iW Ji@iit Ji@iit1(t • Trunk Light LT GRN/BLK GRN/BLK}
See Power
REDIYEL~ LTGRN/BLK Distribution,
REDIYEL 5140 ~ -- u::aw • page 2-0.
S102 ~'p!!JC:;;;~U::3IIIIIClIII!IIIIE:2I111111E:::U::3IIIII1II::31111 LTGRN/BLK N
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C306 (Asp)
LTGRN/ LTGRN/BLK
LTGRN/
BLK
HOUR/ REDIYEL BLK C73
C4 (SE) 18 _ _9 C1
MINUTE p=~=~~.-=.-=,
F = = = = = = = 1 RADIO/
SELECTOR I Memory Ignition I IMemory Ignition
SWITCH I Input Input I Input I Input ~:iTE
~~~=~~=<m9
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~r2
CEI TRANSCEIVER LT GRN/BLK
LTGRN Automatic
S278 • ---~~~ Level

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--------------IC91 5104 ._IIC3~ Distribution,
BLK LT GRN/BLI< page 2-0.
F ============= ======= = = = = 0 INSTRUMENT
~RN'"
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Input U Ground
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Ignition
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UNIT
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'-~~---~------~--~:~ ~~------~-------~

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5145 • _1IC3~
See Ground
Distribution,
page2-10.

i
GRN/BLK

G~"~I c..

a Distribution,
See Ground

a page 2-10.
GRN/BLK a
..,.G100

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 goldwingdocs.com
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 Automatic Level Control
Circuit Schematic ~-,_. . "

WHT/GRN

See Power
Distribution,
page 2-0.

LT GRN/BLK

LT GRN/BLK
Instrument .~~ S278
Panel: LCD
Unit LTGRNl
GRNIYEL BRNIYEL
C103
LT GRN

0=== ======,II
I PRESSURE
CHECK
AIR
PRESSURE
CONTROL
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BRN/BLU
ASSEMBLY

C103
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BRN/BLU ~ -- - - - - - - - - GRNIYEiC91
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----
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GRN/RED BLKlGRN LT BLU GRN/BLK

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See Ground
----r-----IC33 5145 ~m:::;;nm:::;;m~ Distribution,
GRN/RED BLKlGRN LT BLU page 2-10.
....- _._-- . ....... --_ ..- ... C105 GRN/BLK

GRN/RED BLKlGRN LT BLU

GRN/BLKj C66

A
~~RE5SURE
;"" SENSOR

RI See Ground
iI
a Distribution,
page2-10.

~ G100

5..4
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 L~OT;;:;PARK.]
F =~==, FUSE/
I (j) I RELAY
I PARKING I BOX
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10A
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LT GRNiYEL

'jnoo; =-:;we -~'--~''''-=~- ~ 4BRNI~EL

, C72 5142 (II) e::~~
LT GRNiYEL
See Power
Distribution,
page 2-4.
LTGRNiYELl

INSTRUMENT
BRNiYEL I ---______
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GC' I~~~'O"od
I Distribution,
page2-11.
C182

GRN l
I
C10
See Ground

GRN
I
~ G100
I
~ G100
Distribution,
page 2-14.

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 Low Fuel and Oil Pressure Warning System: Asp and SE
Circuit Schematic
HOT A;'ALL TIMES J [ HOT IN ON
r'=~.~. ~.~.=~~~~==~.-=t.==_== ~~@ilifiZ_" FUSE/
I @ I RELAY
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I BRN/BLU ===J page 2-2.

11II
~
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II See Ground
BRNiWHT
1 Distribution
;:ge2-1. ' I
Distribution,
page 2-12.

'It' CGG See Instrument

BRNiWHT ~ BRNiWHT P a n e l ' " <3100
S123 ~~p-=m~ Illumination
BRN/BLK Jt page 7-5. '

B~Kl1
:RN ! : m3i E3 K:D
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BLKlBRN page 7-0.
BLKlBRN

S 132 ~ 'B:;iiIIIIIIIIIIIl::imIllll::OUIIIIIIIl::imllllllllGiiIIIIIIIIIIIl::imIllll::OUIIIIIIIl::imBE:;;JIIIIIIim:::aOOl

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=====

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Input
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w"'''''JL_ _______ COO '~1-C4,J ~~;~~"k

WHT/BLU l- -':LU/R::! C55 BLU/RED 1 C32

WHT/BLU} BLU/RED If BLU/RE;'

S250 ~
WE UIIIIIII ¥M¥ :oJ
BLU/RED PI
& C22
==--=='11 FUEL
TANK I
I r'18 011. PRESSURE
SWITCH
I Open above 1-3 psi
(0.1-0.2 kg/cm2).
===J
=

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 Int
Oil Pressure Warning System
HOTINO~
~~~~~~-~~~~~~~~~ ~-~=~FUS~

I QD IRE~Y
I TAII./METER/POSITION I BOX
I FUSE
1SA
I
I
I
I
I
I
WHTIYEL I
I
L=~==
S106 @-----------IIIII BLK

I
I
I See Power
I Distribution,
I page 2-9.

BRNIWHT
GRN
8415 II

a See Power
I See Ground
Distribution,

~
Distribution, I page 2-17.
page 2-7.
GRN I
BRNIWHTI "'" G100
1" cn
BRNIWHTW

S430 ~ m::;;m ~ IIICaIII ~ ~ Marker Lights

BRNIWHTI
it C6G
BRNIWHTIlil
8431 II m::;;m ~ IIICaIII ~ ~ Indicators
BLKlBRN g
r=l======l'NSTRUMENT PANEL

I OIL I
I PRESSURE I
I INDICATOR
I ~ I
b..= I
BLU/REO

BLU/REOI CGG

CS5

BLU/REoI

C22

BLU/REO

rT-, Oil PRESSURE

SWITCH
Open above 1-3 psi
(0.1-0.2 kg/cm 2)

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6=1
 Indicators: Asp and SE
Circuit Schematic
~~':~;'~'E~=.J [HDT!N ON I
==~===~=~~=~.=.~.~=-=== ====~

®
TAIL/METER/POSITION
®
RVS
I
I
FUSE
15A
START I
FUSE I
SA I
WHTIYEL T=~·=-=-=·=-=~'='=-==== ==-=w~
FUSE/
I
BLK
® RELAY

,
I
~;;;;;;;'-;;;;;;;;;;;';;;;;;oi-=-, TAIL BRNiWHT BOX
(MAIN) I
RELAY
_____ I
======~~.=.~~~.=t&=.J
BRN/BLU@ S115
See Power GRN

aa
Distribution,
page2~2.
See Power
Distribution, C92
See Ground I page 2-1. ~
Distribution, BRNiWHT REVERSE
page2-12. I BRNiWHT See Power BRNiWHT
LEVER
S121 ~ ~ Distribution,
GRN I ~ page 2-1.
SWITCH

~G100
BRNiWHTJl REVERSE

BRNiWHT T C73 BLKiWHT ' ::T/BLU

5123
~
@ ~
BRNiWHT
'
Instrument Panel
(Illumination Gauges)
J ----
WHT/BLU
J C92

1
BLKiWHT
BLKlBRN BLKiWHT

BLKlBRN
BLKlBRN
i ~ BLKiWHT
I1t
5303 @ ~ Headlights,

C73
~~
System

~::::;m::::;mrn::;;IIIIIIE:::B::::;m~CR:::;,.:;;:aE:::JIre:::'l.::::3 @ 5131 BLKiWHT .I

"""" ~~~ -"'~~D ~~ ",;; ::'~~ME:l
~ BLKlBRN
~~R~ liFueland
lJ' - t
8132 @~re:;~"::::l~"'~:;;W~I!S;;W::;;:a;;we:t2j~"'::sm~ ~ ~:~:~a ure
.i
I
,
I
"SIDE STAND"
INDICATOR
REVERSE
INDICATOR
BLKlBRN i]
OIL PRESSUFI
INDICATOR
BRN OVERDRIVE
INDICATOR
(0]»)
CD NEUTRAL
INDICATOR
I
I
,
I IliI ~ ffi] ,
YE~BLI<I=====WHT/:Df==l ~3~L ~~~ l :~~ rhN;oo;:=:..=I~:N/REo==J
YEUBLK
it C16
& C91
Y
'INDICATOR
= = =,
•
Warning
Systems
,
,T ltGRN/ORN
cn
GRN/ORN
Y LTGRN/RED
~ C55
"If

fi
Q",

YEUBLK & 5276 ~;z .... .... w~ c:z:;: _ _ , GRN/ ~~~~~;I ~ See Reverse

l C73 GRN/ ]; S249 ~ ....U":::z;,,,.WHT/

Ji
a 'I
I ~ ~ System, ~
.lIU
System,
page3~15.

i i' S185 Cruise

YEUBLK WHT . WHT/RED WHT/ GR ,
C28 Starting WHT/GRN I GRN N
YEUBLK System - - - - - - C16 ~ Control LT GRN/RED

r =
=

...... ,
""li, STAND
SIDE WHT/RED
C66
I ~~T/ I'"
WHT/
RED I GRN/ORN
GRN/ORN -~JC59GRN/RED
= ' 1 GEAR
I b~?T' Bulb Test ~
WHT/GRN = = =, ==== 2
, I SWITCH _ power,' 4 -'@...N I POSITION
I DOWN UP I Reverse Warning I I ,II 'jiI 1 I SWITCH
t- = = = - System Systems , II 00 ~
GRN See Ground Distribution, b,==b======~9 L = = = = ===J
page 2-12. =
. . G100

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 ~ ['-HOi:TALL TIMES]
F= - = = = = = = = = = = = = = = = = = = 0 FUSE/RELAY
I ® ® p:lOX
I IGN. START HEAD I r-H-QT-W-ITH-DI-M-M-ER-....
I CRUISE FUSE I SWITCH IN HIGH BEAM

~~ F'~~E,15~ 1M l~---~====-.
See Power Distribution,
page 2-3. ~::::==ilI)
WHT
S187 I
WHT
WHT/BLU BLU II
F= ==~ ® 0 I
I IGN./ - - - - HEADLIGHTS I
I CRUISE (HIGH) I
I RELAY RELAY I
L
REDiWHT GRN
======J

Starting System
(Bank Angle Sensor)
BLK/LTGRN
1f 57 II See Ground
DistributimL
page 2-12.
RIGHT COM-
--. StarterSwitch BINATION GRN

ENGINE SWITCH G100

OFF OFF STOP
0 SWITCH
. . ·1-~ RUN C24 BLU/BLK

BLK/WHT ~

r C57

See Cruise Control,

BLK/WHT
I1'l' page 4-1 .
C55
Headlights

WHT J.J. BLU/BLK

WHT .,.,.-------------·lc66

~
.. 'ill) 8240
WHT WHT LL BLU
r===== r~:d'i ==J. -~=========== = = = = = 1 ~~~TERLUMENT
I
I
"CRUISE
SET"
for LCD ( [ ) "CRUISE ON"
Bulb IUNIT INDICATOR
<D HIGH BEAM
INDICATOR
I

I INDICATOR l Tes\- Solid- LCD Unit =0 I

state .!l!.~~na~~====~~= =:===J
GRN

BLUiWHT BLU/ BLU/ BLU/

WHT ORN ORN
C66

G
C1~,",

I
ORN GRN
ill) 5244

BLUiWHT BLU/ORN See Ground

I Distribution,

BLUiWHT I - - - - - - C66
BLU/ORN •
GRN I
page 2-14.

of,. Gl00
Cruise Control

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 Indicators: Int
Circuit Schematic

E;~~'~ [" HOT AT ALL ~~s~ ~J [ HOT AT ALL TIMES J

,= ======= ®=========== Qf===='~lli
I TAIl/METER/POSITION
HEAD
FUSE
II BOX
I FUSE 15A I
l=, ===""'"'ij lSA BLU I
BLK I WHT/ I
~-8 S106 YEL
I I
I
I
g
I
BLK
-==::.J __ ®
TAIL
@
HEAD.
I
I
I ._,- - - - - - - I
I I
(MAIN)
RELAY
LIGHTS
(HIGH) I

IlG" --- ':::' '= -------~~~~-;,: ~~- - ,w"t-~RE:~~J

II
~
II ~~s~r~~~~~ a ~~s~ribOu~~~,
page2-17.

-!-' Gl00
i
BRNIWHT it C72
page 2-7.
II ~f~r:~~~~
.~
page2-17.

Gl00
I
BLU/BLK
C72

BRNIWHT til BRNIWHT """=~ 8 5601

See Power
Distribu-
tion,
page 2-9.
S430 8

BRNIWHT
1 ~::iiIiIiiP. Marker
Lights
BLU/BLK

Headlights
C24
BLU/BLK

BLKlBRN BRNIWHT 1';4;------------------·--'- C66

r~F==-,::i---:::
I "SIDE STAND" OIL NEUTRAL
~----'"' -::~.:.~I~:~~u.
OVERDRIVE ~ INDICATOR I PANEL
I INDICATOR ~FlESSUFIE IN· INDICATOR INDICATOR W I
t_~ ~~~_!_ I~~~t-J]l--- _~oJ~-::l- ID __ J
::::~:HR:: "w 'Wffi~~~~ ~ Starting
:: : : : : : I---:::::1 -----G~N C66

YEL/BLK JIl __ : S t
~R:; !' C28 ys em LT GRN/RED If-- - - ~RN/:Nl C72
YEL/BLK WHT ~

g=~F==""""""""'II SIDE
See Starting
System
"
IIJI
Engine
Control
GRN/
~8 S I See Ground
Distribution,

DOWN
UP ~~~gH pag:T3~~:;RED ~ System GRN/ORN g 485
GRN I
page 2-20.

......~~-""'lt'~........fI
GRN
Jt l c59
~ Gl00

LT GRN/RED GRN/ORN
GRN

II See Ground
Distribution,
page2-18.
GEAR
I POSITION
I SWITCH
~ Gl00
aD I

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 goldwingdocs.com
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 Instrument Panel: Gauges, Illumination Lights (Asp and SE)
Circuit Schematic
I HOT~IN ~~ I : ~AT All TIMES I
r ---------------- --------'~S~E~
I ® I~
I BlK TAIL/METER/ II r----"1 ENGINE
l --------1 POSITION
FUSE 1 I Switched II CONTROL
MODULE
See Power I 15A I I Output (ECM)
5106 ~ rmJ Distribution, I I I I Solid-state:
_______
page 2-2.
~
WHT/YEl
® I 11..._ - 11- - J Do not check
resistance.
C49
:;;;;;":;;;;;":;;;;;":;;;;;":;;;;;":;;;;;":;;;;;":;;;;;":;;;;;'":;;;;;"-;;;';'-;;'":;;;;;,,:;;;;;,,:;;;;;,,:;;;;;,,:;;;;;,,:;;;;;,,;;;;;;g~"'9l TAIL I
(MAIN) I
RELAY I
~~_~~_~_~_~_~~_-_-_-_-_-_-~_~~_~_~~_==dI=.===~=~~J
BRN/BlU
YELJBlU
S115 ~
~
I seeGrOund
Distribution,
Ipage 2-12. a
See Power
Distribution,
page 2-1.

... 0100
A C73
BRN/WHT it Instrument
cn
aa BRN/WHT•
S123 ~.-: Panel YELJGRN
N Illumination
BLK/BRN A INSTRUMENT

r ---- ----------
-~- ~- Bl~B~N -------,
C66 PANEL

I 5131 ~ lIE::;;;;lInl[::3~ See Indicators,

page 7-0.
I BlK/BRN I
I 8133 W 5132

,i
BlK/BRN
See Indicators, ~
I page7-D. ,~~e:3.IlI~lIIIIl?;;;@Ii"....... J!IIII!~

I BlK/BRN C108 BlK/BRN BlK/BRN YEUBlU

I BlK/BRN ",-';"""""'::-",J
Indicators
I ~ -=::;-=:;-=:;,.
I S139 BlK/BRN
ENGINE COOLANT TACHOMETER
I TEMPERATURE FUEL
SOLID
I E :;;;u:a:::r;
(ECl) GAUG.... ~.GAEU:::::aG.E~ STATE
I c H ~... E F

I [168
I GRN/BlU GRN/BlK YEL/WHT

Ib- _ _ --------- ---------- C108 ________ J

---------(11---------- GRN/BlK

S145 @ mx:;;;;s ~
GRN/BlU
See Ground
1.
GRN/BlKl

~~eCekd I Distribution,

I
- ----.----- C66 page2-14.

GRN/BlU
55 _ _ ~~ .__ ,_, _ •
GRN/BlK
i
,
Pulser
GRN
C66

1I
FUEL
GRN/BlU C55
LEVEL GRN
C22 GRN/BlK SENDER
'==.~.JI E • 90·100
GRN/BlU C112
GRN/BlK GRN/BlK Ohms See Ground
w-"~--tI ENGINE S143 ~ ....... ;w::;w::. R ·66-76 Distribution,

II
COOLANT See Ground
Ohms page2-14.
TEMPERATURE F - 4-10
(ECT)
GAUGE
~
Distribution, page 2-1 O.

G100, G103
Ohms I
-!- G100
~~""""'" SENDER
=

7..4
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 F==~~~---======-=-=-=-=======-==~

I [ HOY ON I HOT AT ALL T:;;ES FROM FUSE 8

FUSE/
I RELAY
II ~ 0______
~~ TAIL (MAIN) 0 II BOX
I RELAY I
I I
I ----------------v
===-====-===-===~=~~======~
I
BRN/BLU l]
8115 ~
l1li
GRN
fII See Power Distribution,
BRNIWHT ~ page 2-1 .

8121 •
~
I See Ground
Distribution,
page2-12.
BRNIWHT
AC73
BRNIWHTI
BLKlBRN
S123 • Il!i Gauges

1
P::i!@IIF i!@IIFd@II!E

BRNIWHT

i:.
GRN

',"ffl~'
;:;m~~~~~~~.F3~~E::3IIIIIIII!I!E::IIIII!I!E::;;we ..
~ G100

BRNIWHT BRNIWHT BRNIWHT BRNIWHT

= = = =., INSTRUMENT
I ILWMINATION I PANEL
LIGHTS
I I
I I
I I
L=== ====.8

GRN GRN GRN See Ground

S293 • BIIIIIi - -<lII!l Distribution,
page 2-14.
GRN
!ll!!llllllIIIIIIIIII!!!IIIIIIIIII!!!IIIIIIIIII!!!IIIIIIIIII!!!L:.lIIIIIIIIIIIIIIII!!!IIIIIIIIII!!!IIIIIIIIII!!! ~ 8291

GRN I
IIIIIIIIIIIIIIIIII!!!IIIIIIIIII!!!IIIIIIIIII!!!IIIIIIIIIIIIIIIIIIIIIII!!!IIIIIIIIIIIIIIIIIIIIIII!!!IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII!!!IIIIIIIIIIIIIIIIIIIIIII!!!. S290

~:~l~ See Ground

I Distribution,
page 2-14.
GRN
I
.~ G100

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 Speed Sensor Circuit (Wheel Speed)
Circuit Schematic --'~'-'------------~----------

[~OT IN PARK, ACC ~OR ~N

IF=~'========., FUSE/
I @ I RELAY
I ACC I BOX
I FUSE I
I 1M I
L=, ',,=, = -= -:=< = _ wi

See Power Distribution,

~ page 2-0.
LTGRN/BLK ~
LT GRN/BLK r~:4iE:aIIII!EJI!EiI!!iLTIE:G<Il!RI!!iN::::;/B!III!LK~
C16 ~ C107
LTGRN/BLK LT GRN/BLK
b========IINSTFlUMENT
PANEL I
Ignition~Acc WHEEL I
SPEED
SENSOR I
Speed Output Ground Solid-state

WHf/BLLJ
WHT/BLLJ r-A _. -----
C16
GRN/BLK
C107

I
F - .. = = ~ = ~ ~ - = =
Ignltlon-
WHT/BLU
I -'LCD
SpeedI UNIT
I Ace Input I Solid-

I Wheel I state
I Speed Ground Ground

I
1 = = = WHT/BLK
t =Ofutput = = =, =, =f1 =
=====~;;;LK 11===~N/~L';;'
=;i: J 1=====-

I C73 GRN

G"""
L C16

WHT/BLK

~ I page
I
= I CASSETTE
I0=,nput
... = =
91RADIO/
'"
I1 Solid-state:
DECK
Do not check
C33
WHT,fBLK
S293 lIB

GRN
I LT
GRN
1 See Ground Distribution,
2~ 10.

resistance. ~ C90 I C22

YEURED
WHT/BLK I See Ground
Distribution,
page 2-14.
LT
e99 GRN

r= =
I
C135
91 CRUISE
I
Input CONTROL
WHT/BLK
0= 91 TURN
I
Input SIGNAL
GRN l I
GRN/BLK

I I ~~~J-state: I I g~~~~~L
....- = n Do not check ... - _I UNIT
resistance. Solid-state:
Do not check G100 ~ -!- G103
resistance.

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 (Crankshaft Speed)

Note: For Ignition, Battery and Grounding details of the Engine Control Module ECM),
see page 3-0 (Asp & SE models) or page 3-4 (Int models).

r~·=·=·=·========·~·=,=,:,:<'lIIIIIIIII:lII·=·---======~~~~-~='=~==' ENGINE
Crankshaft I CONTROL
I Crankshaft Speed Input Speed I MODULE
I ~ A.. Output (ECM)
IL _ _ Common (Asp &
_SE
_ JI
-"ocr--------- ---------- ------
~ ~ ~ ~~

-w~",'"r C49

------ . C63 GRN/BLK WHT/BLK

WHT/YEL WHT/BLU

IGNITION
PULSE
GENERATOR #1 C33
IGNITION
li
~
WHT/BLK
PULSE C135
GENERATOR #2 - - - - - - . . , CRUISE
I Speed Input I
CONTROL
YEL
I UNIT I
I I
(Asp 8< 8E)
I
!b. _ I
YEL 1IIIim II ~ 8301

BLU

(Asp & SE) S196 •

GRN/BLK
~Aiiiiiit:: _ _dIIO'EAiiiiiit::
J
~
i
(Int) 5496
GRN/BLK

See Engine
Control System,
page 3-2 (Asp & SE)
or page 3-6 (Int).

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 Instrument Panel: Gauges, Illumination Lights (Int)
Circuit Schematic
[~';'~~J r=oor~~~;~
r= =-==-~.=,=,~,===== ~~'~'=-,~=~~==wwz.%W'i>==~-iJ FUSE/RELAY

I ® 1-
B~ I
I
L ~~-~~~'--,
TAIl/METER/POSI.
TION I I
r====' ENGINE
I CONTROL
See Power II FUSE
ISA 1I I Switched I MODULE
(ECM)
S1061lB Distribution, I I Outp.ut 1Solid-state:
Page 2 9 w~J( 1 11 J Do not check
f"='
= = -~, =.J
---------
®
TAIL I
1 L, ==C49 resistance.
I
I (MAIN) I
RELAY 1
I=!~~=:=::=::==:,~::~~~===::=====:=::i: BRN/WHT
=======-===~==.=(l:lIl:&
1
See Ground YEUBLU
S415
I Distribution,
page 2-17.
I
@

See Power

I 1I
Distribution,
GRN
page 2-7.
• G100
cn
f
BRN/WHT

8430 .w::::....
BRN/WHT
Marker
C72

Lights YElJBLU
BlK/BRN
INSTRUMENT
.------------- -------- C66 PANEL

I BLKiBRN

I
I See Indicators,
page 7-2.
I
I VEL/BLU

I
I
I
I
I
I FUEL
TACHOMETER
I GAUGE SOUD
STATE
I
I
I GRN/BLU GRN/BLK YEL/WHT

I CHIS
~.=_.

See Ground
GRN/BLU GRN/BlK
I Distribution,
page 2·20.

GRN/BLUI GRN/BLK
C66
G,,1
I en en
FUEL
G"I~
I
GRN/BLU lEVEL

GRN/BLU
C22 GRN/BLK

GRN/BLK C112 GRN/BU<

-"1!f"- SENDER
E· 90·100
Ohms See Ground
fIF="'-"""""'\1 ENG INE 8443 • _~C!lllllll'.':• • •~CiE~:::;m::!!lI R . 66.76
I Distribution,
page 2-20.

II
COOLANT Ohms
TEMPERATURE See Ground F. 4.10
(ECT) Distribution, page 2-16. Ohms
GAUGE
~.- SENSOR
=
.£Il G100, G103 !GlOO

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 r~===~====~~==~==~==============~
FUSE/
I HOT I~~~ ~~ AT ,~:~TIMES FROM FUSE 8 I RELAY
BOX
I BlK WHT/YEl

I ---,~'~~~~~~~~~~_~~~-- ~~ICt.~AIN) 0 l
I I
Ib.=
I -----------_
BRN/WHT
S415 tt
I

1m
See Ground BRN/WHT III See Power Distribution,
I Distribution,
page2-17.
l1li page 2-7.
8420
BRN/WHT 1f•

C72
BRN/WHT ~
GRN

i
5430 • - - - ~ Marker Lights

,",won e66

BRN/WHT
BRN/WHT Indicators
. . Gl00

F~~

I
I
BRN/WHT BRN/WHT

__ ~~~~'~::J~'~~'~~
ILLUMINATION
===,I INSTRUMENT
PANEL
LIGHTS I
I
I
Ib.== =====t·===J GRN
GRN GRN GRN GRN See Ground
5592 • JlllllllllJIIIIIIIIIJIIIIIIIII~ Distribution,
page 2-20.
8591 GRN
. .- - - - - - _ . .IIiLJIIIIIIIII_d
GRN I
lllllliillllllllll!iIIIIIIIIII!iIIIIIIIIII!iIIIIIIIIII!_iIIIIIIIIII!iIIIIIIIIII!iIIIIIIIIII!iIIIIIIIIII!iIIIIIIIIII!iIIIIIIIIII!iIIIIIIIIII!iIIIIIIIIII!!IIIIi. 8590

~: t e
..
See Ground
I Distribution,
page 2-20.

GRN I
. . Gl00

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 Headlights: Asp and SE
Circuit Schematic

r"~~:;;~~~J HOT IN ON HOT IN ON I I

HOT AT ALL TIMES I I r""'"'
-=== =,--,==== =============== P=======-=====V FUSE/
I @ ® BLK ® RELAY
I HEAD RELAY RVS START TAIL/METER/ BOX
I FUSE FUSE ~ S106 POSITION

L ~~~~~~~ ._~ .:~ I ",I "",NEC ~~:E ®

I ~ D~
I (MAIN)
See Power I ~------- RELAY
Distribution,
page 2-2. I -J t-
BRN/RED BRN/WHT
L==f=====J=====~
~
GRN BRN/WHT

See Ground I • 5415

Distribution,
page 2-12. I BRN/WHT
~

GRN I • BRN/WHT
re:;w>:;we:;w>: ¥iiiiiiii
S212
~
~ (;100

BRN/WHT

REVERSE
C57 C92 LEVER
BRN/RED BRN SWITCH RIGHT
r=== ======-, RIGHT HEAD-
I COMBINATION FORWARD
LIGHT
POSITION
I -'=1 STARTER/ I SWITCH LIGHT
I PUSH
REVERSE
I SWITCH I WHT/BLU
I I I
I
_.4
==...J I
w C92

N= ::z.1~~:::
I BLKlWHT

b== =======J

~ II
WHT/BLU
BLU/wHT
. 1= = =0 REVERSE
C57
Reverse
II DIODE
ASSEMBLY

1
08
System
16= =1 GRN
BLU/WHT BLU/wHT C32

S205 • -=-w Ji@iit Ji@iit Ji@iit:~~~am:::I

BLU/WHT
C94 Indicators
BLU/WHT (Neutral
=======, LEFT Indicator)
IF"""-+-""""'li DIMMER I COMBINATION
HI SWITCH I SWITCH
I
===,.".,l!

To FUSE/RELAY BOX
on page 8-1.

8..0
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 From LEFT COMBINATION From LEFT COMBINATION
SWITCH on page 8-0. SWITCH on page 8-0.

FUSE/
I RELAY
I BOX
I
I
I
I
I
I
I
======..11

See Ground
Distribution,
I page 2-12.
~G100
WHT/BLK BLU/BLK

BLU/BLK

1
(;66
BRNI WHT/BLK ~- -- - - - - - - BLU/BL;l (;24
WHT 1'1 WHT/BLK

w:: i~"" . , ""BLU:LK"" ..., =031~

BLU/BLK
r=====
I
BLU INSTRUMENT

HIGH
PANEL

BEAM
LOW HIGH HIGH LOW I INDICATOR
LEFT LEFT RIGHT I LCD Unit,
HEAD-
LIGHT
HEADLIGHT HEADLIGHT
I Illumination
Lights
10
1 1 I
POSITION
LIGHT
GRN @ GRN

I
111111@
GRN GRN
5174
GRN
8173
GRN See Ground

1
GRN Distribution,
e66
~S--------------------@ 8175 page 2-14.
GRN 1 (;24 GRN

Automatic
Level Control
GR~RN
. ,_ _ @ I GRN GRN @ 8172 1IIIIIIIIIIiI

S166 GRN I
I See Ground

GRN 1
8177 ~ -lIIIIIIIII!wllill~ Distribution,

(;55
page 2-14.

I SeeGround
Distribution,
I page 2-14.
..Jl G100

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 Headlights: Int
Circuit Schematic
[HOT IN oN] C HOT AT~~01~ES I
I @
BLK
I HEAD
I RELAY
FUSE
pII BLK
B ~ S100 15A I
I

I I
5A WHT/YEL
I BLK I
I
I ~_ _~~_~,_~~@ I
I TAIL I
I (MAIN) I
I -""==----~~""""... RELAY I
'-== ====~f===~=~ =======J

I See Ground
Distribution,
page 2-17.

BRNiWHT
GRN I
-~ G100
See Power S415 ~ e;a~I':::;;lIInE::;.' See Power

~~
Distribution, Distribution,
page 2-9.
BRNiWHT V page 2-7.

C G~
C57
S212
BRNiWHT BRNiWHT

BRNiWHT
RIGHT LEFT
HEAD- HEAD-
LIGHT LIGHT
POSITION POSITION
r=== -~=====, RIGHT
LIGHT LIGHT
I COMBINATION
I F"'= HL1=' STARTER I SWITCH
I I FREE PUSH I SWITCH
I
I I _A I I GRN GRN

I l~ ==""" I
I
L== =======J

======""LEFT
W-~""'-H-L~"'!I DIMMER
I COMBINATION
SWITCH I SWITCH
I
I
=m~·-===='

To FUSE/RELAY BOX
on page 8-3.

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 From LEFT COMBINATION
SWITCH on page 8-2.

WHTiBLK

CG6
INSTRUMENT
PANEL

i (1) HIGH
I BEAM
I INDICATOR
II Illumination
Lights
=-0 II
0====== =====dl
I See Ground
I Distribution,
page 2-20.

GRN
1 CGG
GRN
GRN I
See Ground
S477 @~ Distribution,

1
l!!ii €9 S175
page 2-20.
GRN
C24 GRN

GRN

GRN I C72

I See Ground
Distribution,
page 2-20.
GRN I
. . G100

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 Marker lights: Fairing and Trunk
Circuit Schematic - -.. ~.---_ ..

~LT1~J
--------- ------,~~
® I RELAY
TAIUMETER/ I BOX
POSITiON I
--., FUSE
15.0.
I
I
r----~ I
I BLK
5106
__ J WHT/YEL
I
I
BL1<
I ~~-;;;;;.,;';;;;;";';;;;;.,;'~;;;;;.,;;;;;;.,~'"""l!® I
I
I TAiL
(MAIN) I
I ~~=~~~~~~"""""'"
* BRN/BL
RELAY I
I **BRN/WH I
.. ------*-- -------- BRN/WHT
See Power **~~ ~ ~ .~ -iM"';';M> J!1W J!1W J!1W';M> J&W J&W 4EJiiiiiiiik J&W:J&WJ&W: J!1W J&W J&W J!1W ""
See Ground IIlI
Distribution,
Distribution, BRNI ~ See Power Distribution,
pages 2-2*
I pages 2-12* WHT III pages 2-1 * or 2-7**.
or 2-9**.
I or 2-17**. * 5121 •
G100 **5420 [1 *C73
BRN/WHT A **C72

BRN/WHT
*5123
!~~*:B~R~N~H:T::
T
Instrument
Panel
**5430
BRN/WHT N
III BRN/WHT
5213 ~~J!1WJ&WJ&WJ!1W

Headlights ~~~
~HT
BRN/WHT

BRN/WHT
III
~
I
5212

C97 ""'H'
1I C"
BRN/WHT
I
f'l:\ LEFT FAIRING f'l:\ RIGHT FAIRING
~ MARKER LIGHT ~ MARKER LIGHT

GRN I GRN I C6S

C97

I
Left Front
Turn Signal/
1>.,. GRN
GRN

1
~ *5176
**5471
GRN
GRN

I
*5171 ~ .,..,.GIi11iRI!!I!N.,.~ Right Front Turn
Signal/Position Light

Position Lights
GRN
**5476
I
*5172 ~ .,._JLIlil!RIlil!N_~ Instrument Panel
**5::: (Illumination)

~ Headlights,
51771
hWllllillIlllllllliIlllllllliWllllillIlllllllliWllllillIlllllllliWllllillWllllillIlllllllli!lllll!ll. • . & GRN
Position Lights
GRN

GRN J *C55
**C72

I See Ground Distribution,

pages 2-14* or 2-20**.
I
-t:- G100

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 ~r:::~~~~~ .
BRNIWHT Left Rear

Right Rear
Light Assembly
C10 BRNIWHTi BRNIWHT ~
BRNIWHT
,
CB6
BRNI BRNIWHT
C82
BRNI
Jl,
WHT 5265 WHT 5269
5264 ~ re il!!@IIIt%W ~ 5268 ~ ~ ~ lIE;;-::;;W
BRNI BRNI
WHT WHT

LEFT RIGHT
51 DE TRUNK 51 DE TRUNK
MARKER MARKER
LIGHT LIGHT

1 I
~-_. ~ - - - ~ 5267 ~_ _1111111 ~ ~ 5271

5266 GRN 5270

GRN
CB6

GRN
.•,::1""2""
**5459 ~ !B_~
GRNI GRN
_Trunk Side Marker See Ground

[
.. , "

lights are optional on

~
*5161
**5461
I
IIIIIIII!BIIIIIIIBIIIIIIIBIIIIIIIBIIIIIIIBIIIIIIIBIIIIIIIBIIIIIIIBIIIIIIIBIIIIIIIBIIIIIIIBIIIIIIIBIIIIIII ~!B_-' Distribution,
page 2-13*
or 2-19**.
Int models GRN GRN

**
*5149~!B_~
5449
GRN 1
[;**Int
~ASP and SEJ
'.......,=,,, • ,
GRN
I
C10

r~I=;C192
D=. =J
GRNI
See Ground
I Distribution,
page 2-13*

I
~G100
or 2-19**.

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 Marker Lights: Saddlebags
Circuit Schematic
~~~ ALL TIMES ~,~;;:; ON~l ~J

r====== ~:::/::T~~==~:I<]=========== =WR::1 :~~~

FUSE FUSE I
15A 10A
WHTfYEL r:~::·~:~;;~:;W:== ===WJ
U Dlstnbutlon,
.=~. ==, page 2-2.

--------- 0 II LTGRNIYEL LTGRNI

I
I
----------, TAIL
I
S142
1
@~~ Automatic

==:1
(MAIN) Level Control
I RELAY LT GRNfYEL

-~ ~ - -;;;;;;;-;;~;; ~-..:-..:-==~ ~-~~ 1

COG'' ' ' 'I ClO
o~ See Power
Distribution, II See Ground IN-LINE
i page 2-1 . Distribution, DIODE

~::;:1;:==' IGNITION I rag"-12. B

I I SWITCH A G100
IWCK ON I =

L~~~'~~lJ BRN BRN

BRNX C58
, C10
BRN BRN 5112 BRN
S113 ~ liIIrnIIliIIrnII.mI.mI.mIliIIrnII.mI.mImm ~. ffillI!IIF!IIIIIIIII!.mI.mI.mI_ _.mI.mIIIIIIII8@S111
BRN I
• •
I BRN I cn
Left Rear Light License BRN
Assembly Plate Light BRN

iF""~~~~~-~~~~=~~~~~-~=~~~~,,-Ifi~ INVERTER
(Optional) STOP =
C1S9 (Optional)
I RIGHT
I REAR
Solid-state I LIGHT
= = J ASSEMBLY

GRN
BRNIWHT GRN BRNIWHT GRN GRN
Y C78
GRN&
cn
'-_11111118@I
C190 C194 C195 C193 See Ground GRN
BRN/WHT GRN Distribution, 5159
BRN/WHT GRN
page 2-13.

I1I See Ground

Distribution,
page 2-13.
ELECTROLUMINESCENT
LIGHT
ELECTROLUMINESCENT
LIGHT r=I""""iI
I
C192

LEFT SADDLEBAG RIGHT SADDLEBAG ~ =..lI

MARKER LIGHT MARKER LIGHT GRNl
-!- G100

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 Cornering Lights: Asp and SE
Circuit Schematic -'~------""-'-'--'''-''~-~~~''-"~-'~-'--''-------,

[==~;~;~~T:~E~~:J H'~~~~J [ HOT AT ALL TIMES ] ~~~~

r===~== ==~=-==~- =--===-~=~=~==~~=~ ===~,
® @HORN! I
I TAIL/METER! TURN! I
I, ~r?~v I

!
POSITION BLK BLK BLK See Power
FUSE 5100 ~ .. Distribution,

-:1
nr;;.....

I 15~ pago2-2;:E
I ® \.!J 1
" TAIL HORN! R
(MAIN) __~_______ TURN I
I ~~~"-d~ )(~""" RELAY RELAY I

L===_~RN:U =------:~+=-----------------t----J
I 8115 ~~~ See Power S~e ?ro~nd WHT/GRN
.::2M~iIilIIIIE::2M~1!R! ~ E3 ~ Distribution, Dlstnbutlon,
page2·1, I page2-12.
BRNIWHT
i C94 GRN~ G100
See Power
Distribution,
WHT/GRN
~~~ S109
BRNIWHT - page 2-2.
rww;~·~~~ ~.~~mmw.w=;.~wm@~~=:l LEFT
WHT/GRN
I RIGHT LE
I COMBINATION
SWITCH
FUSE!
RELAY
II ~8~ S217 ~~=~~~~= BOX
--- '---~--- I

L_~__._~_~
WHT • .~.~WW$~.,

~_J ~~W, ,~:= {' ie:; 1iI 1 ~I !: LT; ;O BI I I LI : :UIW: HE':Td·r; w; :; w; :"? o I
I
I
POSITION
RELAY I
Right Front
~~~
LT BLUI
BRNI
WHT
ORNIWHT
Turn Signal! WHT I I
C93 Position Light I ORNIWH I
ORNIWHT 8215 (Park Bulb) L.~.=.~

·~~~i~~~~g:;~~~~!t"~·
Left Front T ORNIWHT
Turn Signal!
BRNIWHT C73 Position Light
811611} ~:Jiiiiiiiit:;ww ;wr:;;m11l

j
(Park BUlb)
Turn Signal BLU/BLK
BRNIWHT ORNIWHT BRNIWHT
Flasher! ":;ww - I I } S218
BRNI LT BLUIWHT
WHT Relay
C96 C70
BLU/BLK
LEFT RIGHT
Instrument CORNERING ~-_~__~_< 4 R CORNERING
Panel LIGHT RELAY LIGHT RELAY C90
(Illumination)
C96 C70
BLU/BLK

"""~lC99
GRN GRN

LEFT RIGHT

I
CORNERING CORNERING
LIGHT LIGHT

GRN II C95 GRN C69 rG'7c;und;'d - " ,

1when Turn
GRN GRN I Signal Switch I
.ison. J
Ir~~-~:t~T"I C191 rL~=:rlC191 ~~-=~
(SE)
C192 (Asp) TURN SIGNAL
L === ,=,_~._mI L= ~ ~ .],-=-==:-~~ CANCEL

T See Ground T See Ground

CONTROL UNIT
Solid-state:

I Distribution,
page2-11or2-13.
I
Distribution,
page 2-11 .
Do not check
resistance.
~ G100 . . G100

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 Cornering Lights: Int
Circuit Schematic --~-~-,~-,,~,-----_ . . _ .. "-,._""-,~_._._---

I HOT AT All ~'~~J [>~T IN ON J

r~~~ ®~~~~~~~~==f====~==l~lli
: TAIWIIIIETER/ BlK I BOX
Po~nON I
II WHT/yEl
~~;E I
r-'=-w=
BlK
=======-!
See Power
I I 5106 . . . Distribution,
page 2-9,
II ~==~~
------,-----
BlK

® ======1I
I ------------ I:~N) I
5416 l_:;;;;;;-.=-::====~_~~ RELAY I
BRNIWHT
am.D W See Ground

r
(I W:::&m¥"'~ 5415 Distribution,
BRNi BRNIWHT page 2-17.
WHT
Ill! See Power ... G100
~ Distribution,
g page 2-7.
See
Power 5421 • -=-~_::"~_::"~-=-!II'::l!!lllllllllE:Jl!_:MI!I~_=-IIIII".:::!!IIIIIIIIIE:Jl!_:JfIi
Distribu- BRNIWHT
tion,
page 2-7. C94
BRNIWHT
~-=~= ~~~~-~-=-=~~'LEFT

I RIGHT lEFT POSITION I COIIIIBINATION

I __ ~ _._ _ _ LIGHT SWITCH I SWITCH
I "h (Part otTum I
I Signal Switch) I
I I
L~= ~=~~~~ ~~===~~~
BRNIWHT ORNIWHT IT BlUIWHT BRNIWHT

------" C94

ORNIWHT

ORNIWHT
5215 8
IM§iiiIIIIIIIS::M(ii
;;"~~I cn ORNIWHT
! IT BlUIWHT

IT BlUIWHT
J
S217
J:b J!!1!M!E Miiii! :iii!iiiiV::J!i@'::;;a. _zaliiZ2l111ii1E::JlI
IT BlUIWHT

- - - - Ci~FT . ~~;;,,;;;;;;;,,;=..;=..;;;;;,,;;;~.;;C;,,;,70RIGHT
CORNERING Left Front Right Front CORNERING
I..IGHT RELAY Turn Signal! Turn Signal! I..IGHT RELAY
Position Light Position Light
(Park Bulb) (Park Bulb)
C96
RED/BlU

fC69
GRN GRN RED/BlUJl

I!\ LEFT RIGHT

CORNERING
\SJCORNERING
LIGHT LIGHT
GRN
C95
GRN 5154 5156e _GRN
_•
~ . . e_1IIIIIIlIIlII
I See Ground
Distribution, I See Ground
Distribution,
I
~ G100
page2-18.
...I page 2-17.
G100

9=4
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 Handlebar Switch Illumination
Circuit Schematic

BLK

See Power
Distribution,
page 2-2.

See Ground
Distribution, BRN/BLU
page2-12.

I
~ G100

BRNI
WHT
BRNIWHTj-- ----::1
S115

C23 C57

LEFT BRNIWHT CB/RADIO RIGHT

COMBINATION SWITCH COMBINATION
SWITCH ASSEMBLY SWITCH
IP'=

I Position I I I BRN
I Lights I I .~~

I I
I CEl I I CRUISE
TURN/
I HAZARD
I SWITCH I I CONTROL
I ILLUMINATION I ILLUMINA-
1 I SWITCH
TION ILLUMINA-
I I I I TION
I I I I
Ib=====,_== 11.===

GRN GRN GRN

C94 C23 C57

I
GRN

iI=l C191
GRN

i=II
I C192
GRN

i=I1C191
I I I I I I
Ib"" ="'" Ib"". ="'" Ib"" ="'"

J See Ground J See Ground J

I Distri bution,
page 2-11. I Distribution, I
See Ground
Distribution,

I
~ G100
I
-!-
page2-12.

I
page2-11.

G100 ~ G100

9..5
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 Turn Signal, Hazard and Position Lights: Asp and SE
Circuit Schematic
[H~'~~J [HOT AT AL~ TIMES :]

r=l==== =®====i ~~~~

I BLK TAIUMETER/ I BOX
I POSITION I
I WHTIYEL
FUSE
15A
I

Ir-1=i
S106
@ II ..,=======., INSTRUMENT
BLK I -~.- TAil I -===." I LCD PANEL
I I I
Wheel I UNIT
I I (MAIN) I I I Speed I Solid- I
I
J
., _ RELAY
I I Output I state I
See Power
Distribution,
page 2-2.
LGRLN~.~=l~~ l~f::==J
BRN/BLU ~ WHT/BLK

I
W~;,"~~ C:
@II S115

1 G100
H S"Sp"d
BRNiWHT
S238 @II::Z:::~ Sensor Circuit,
page7-G.

See Power
Distribution,
page 2-1.
~

WHT/BLK
WHT/BLK

i
WHT'BLKr---:HT/GRN]

TURN SIGNAL
~i=2;
WHT/GRN

C90
C99
S110 WHT/GRN

Horn Switch

r==-------~--~--~~-""'--""""""iC ANCEL
Wheel Speed Input CONTROL UNIT
Solid-state:
~~T Do not check
BRNiWHT ANGLE
BLK resistance.
SENSOR
- C99
BLU/j
BLK
- C90
BLU/ l(
C94
BU< ~.2l!!IIE ;mw:;;;w: S
BRNiWHT

r=========
I Turn Switch
I Illumination
I POSITION LEFr
I LIGHT
SWITCH
I-~~---=

C94
GRN
f"'l'
I
1m-
I C192
"J
LT BLUiWHT
See Ground
GRN l
Distribution,
page 2-11.
I See Ground
Distribution,
page 2-12.
To S217 on To S215 on GRN 11.l!IlIIIII!l!IlIIIII!l!IlIIIII!d
page 9-10. page 9-10. ~ G100

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 CHO~ A~_~::,~~~ [~OT I~ [ HOT IN ON, ACC, OR PARK I
i==== ~:~U~N~========:l------------~cc~u~·-l ~~~
I STOP/RELAY 10A I
FUSE BLK See Power
I 15A S105 @ t Distribution, 11"=== ===.J
I page 2-2, I
I I
I BLK/WHT BLK I
I I LTGRN/BLK

1
I
0
__._________ HORNfTURN
1
I LTGRN/BLK

I RELAY I See Power

Distribution,
I I C10 page 2-0,
GRN

WHT/GRN WHT/
GRN
From S217 on
page9-10. I See Ground
Distribution,
page2-12, LT GRN/BLK

===~~w==,
GRN

1
_ G100
FUSE/
iF""'~~~~~T~~_ HAZARD
C88

I (2) I RELAY FLASHER

I D BOX RELAY
S1071 -------- POSITION:
I ~~="'=:"'=~~=~~ RELAY ;
fi.
WHT/
GRN
WHT/
GRN
To 8215
on page 9-1 0.
Brake
Lights
BLU/BLK

PNK/WHT

PNK/WHT

LT BLU LT B

5222 . - - - - - -

To 8285 on page 9-11. To 8223 on page 9-11 . (cont'd on 9-10)

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 Turn Signal, Hazard and Position Lights: Int
Circuit Schematic ~-- ---------------- ,-----~----

I HOT IN ON I ["" HOT AT ALL TIMES =J

IIB=LK]========= @====1~~
TAiL/METER/ I BOX
l= ===1 ~~:~TION I
_1!1_IUDllII €I S106 I WHTIYEL 15A I
J I
BLK
,;;;;;,;;;;;:;;;,,;;;;;.;;;;;;,;;;;;;.;;;~~®
TAil
II
See Power
Distribution,
page 2-9.

GRN
=====:~:;
See Ground
-----f ======8 ~~~~ I
I

I Distribution,
page 2-12.
• S415

I
~ Gl00

BRNiWHT

IIIIl See Power

U Distribution,
page 2-7.

BRNiWHT

" '"'i S'21

C94
BRNiWHT

POSITION
LIGHT
SWITCH

To S217 on To S215 on
page 9-1 O. page 9-1 O.

------"--------------

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 L__~i
e=·=
AT ALL TIMEi ]
========
HOT IN ON
-"='==-======..=
L~OT IN ON, ACC, OR PAR~~
. ~.~ =·=-'=-'~~'fUSE.1

I (]) @ I RELAY
I HORNrrURN/ BLK See Power ACC I BOX
I
I
STOP RELAY
FUSE
15A
S105 ~
BLK I CD
Ii Distribution,
page 2-9.
'f"==
FUSE
10A _ - _
---=-
I
•

I HORN/ I
I --------,~ ~~~Y I

L=~1========f---------J
LT GRNIBLK

LT GRNIBLK See Power

WHT,GRN GRN
Distribution,
C10 page 2-6.
I
r
WHT/GRN See Ground
::z= ::z=. 5406 Distribution,

~ WHTIGRN~l C1. G" I page2~17. LT GRNIBLK

,~ G100
See Power WHTIGRN
Distribution,
page 2-9. CB7 CB8
~r======"'""""lI TURN If"""'=====~:"""""'==_ HAZARD
SIGNAL FLA5HER
FLASHER RELAY

GRN GRN r------

~~i'IIIIIIIIII!--IIIII[~ S450
CB7
RELAY

GRN

!IIIIIIIIIIiBB"·5461
C88

See Ground
Distribution,
page 2-19, GRN
GRN I
·~~i'IIIIIIIIII!_EElillllIIIII[. 5449
GRY
GRN I See Ground

GRNl _
OK here if
Brake Lights
work; if not,
I Distribution,
page2-19.

1I
C10

I
see Ground
Distribution, m
See Ground page 2-19.
See Ground
Distribution,
page2-19. I GRY
Distribution,
page 2-19.

•
I G100
PNK/WHT
GRN
•
I G100
C93

I
1\
-=========---== ========
,,;===============Q!-====JlTURN
TURr-::IGNA~LlGHT 5WIT:'H_ _ ~~I~~~
GRY

===--~~n
1""""'+="""9i HAZARD
SWITCH
COMBINATION
SWITCH
I
I
____LEFT _@..,RIGHT
L
\ I

'==:=:===1i=.=-=.====::t===-====--- ==1
ORN LT BLU LT BL
5222 ~ 1IIEOO!IIIIIIIIIIi!lllllllllli!lllllllllli!lllllllllli!llllllllllid ORN

To 8285 on page 9-11. To 8223 on page 9-11 . (cont'd)

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 Turn Signal, Hazard and Position Lights: All Models
Circuit Schematic (cont'd)

SE and Asp only

From C94 on
page 9-6 or 9-8.
From FUSE/

i
RELAY BOX From C93 on
on page 9-7. page 9-6 or 9-8. SE and Asp only
Q LT BLU/WHT
LT BLU/ To FUSE/
LT BLU/WHT WHT RELAY BOX
~2lllllllE:2lllllllE:2lllllllE:alllllllE3~
ORN/ ORN/WHT
S217 g on page 9-7.
WHT
LT BLU/WHT Jl
Right C55*
Cornering C72**
ORN/WHT
Light Relay

Left Cornering
Light Relay LT BLU/WHT
~ HOTINON

ORN/wHT S219 ORN

pi!i1i!----~-----------!IIIIII[U----~
;
S220 LT BLU
~lIIIi ;
ORN ORN LT BLU
n~l LT BLU/WHT

C67

C66 LT BLU LT BLU/WHT

RIGHT FRONT
LEFT FRONT
TURN SIGNAL!
POSITION
@ TURN SIGNAL!
POSITION
LIGHT ORN LT BLU LIGHT
POSITION TURN TURN POSITION

= = =" INSTRUMENT
GRN LEFT RIGHT I PANEL
TURN TURN I GRN
SIGNAL SIGNAL I
C98 C67
=="'IIIF'== 0 =J
Left Fairing
Marker Light GRN Right Fairing
Marker Light

GRN GRN
GRN 1 C66
GRN GRN

1
GRN 8177 GRN GRN

"--~-----~-----~------_.
*S176 *8172 *5171
_ _!!!!IlIId

GASp Se-J and

**S476 GRN

GRN 1 C55*
C72**

See Ground
**S477 **5471

**Int Distribution,
,"'u ,
II pages 2-14 *
and 2-20 **.
GRN I
.Jl. G100

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 From C93 on From C93 on
pages 9-7* pages 9-7*
and 9-9**. and 9-9**.
S

ORN LT BLU

""'C55
"'C73
5 ORN 1)-)_IIIIIOIllllRIIIIIN S285

SaLTBLU ~)- LT BLU LT BLU

=====""'i TRUNK
ILIGHT
LEFT REAR RIGHT REARIASSEMBLY
TURN ~ TURN I
SIGNAL W SIGNAL I

~G~-------------~:II~;H~--J
GRN

I
GRN
"'5158 _

"''''5458
GRN

**S459
___mJI
I
.- *5159 GRN
I11III _1IIII1IIII!1J

G"

*Asp and SE
**int
I See Ground
Distribution.

I pages 2-13'"
and 2-19*"'.

GRN I
~. . <0100

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 Tail, Parking, and License Plate Lights: Asp and SE
Circuit Schematic
L_.__ HOT AT ALL TIMES I [ HOT IN o~
~A'~::::::==========~LKI====l:~
FUSE I
15A r==== '==BLK=dI See Power
WHT;YEL I S106 lit t Distribution,
===== ====, page 2-2.
BLK I
I iF""""""'~==;';;;;;;;;';;;;;;';;:::;;';=-==':.=..;;;;;;.;~'::::::;.'==~;;;.;;~==.=;.;;;;;~ ® I
----------------------- ~L I
I - (MAIN) I

See Power
~-----------·~---------l = =
IL==~R~~S~================== == J
RELAY

Distribution, ~illt:;m~1It GRN

page 2-1.
BRN·WHT D See Ground
D BRNiWHT See Power I Distribution,
S121 lit i!!!!!!!F"i:iJ!!!!!!!!!!"J!!I!!!!!![';;i+ Distribution,
I page 2-12.

1
BRNiWHT
page2-1.
GRN

r
I
,-B~N~TIC:'==l
LOCK
TL1
ON I
IGNITION

SWITCH
BRNiWHT'" Gl00

II ~, p ,
.;~
ACC II
R===~F~== J
BRN
C5S
BRN

BRN
I.------------BRN;:H~ Cl0
I BRN
5113 lit S
BRN 1 Left Rear 1 BR;H;" lit 232 SJ@W @iiiiiiiW;N:;T@iiiiiiiW'" !!!!!!!!!!If -+5
I Side lI!
1
BRN
BRN

BRN f
CB4

CB5
Marker
Light
BRNiWHT

BRN
I C75

1IIi!MIIIIIi!MIIIIIi!MIIIIIi!MIIIIIi!MIIIIIi!MIIIIIi!MIIIIIi!MIIiIIIIlllli!Mllillllillll lit 5272 GRN

BRN 1 S209 lit -~t~ Light
Left Accessory

=B~l- C1SS ~o~_iona~ '1 LEFT BRN

= = = = = =, TRUNK LIGHT
I I SADDlE- LEFT ASSEMBLY I
CENTER I BRAKE I BAG BRAKE
lIGHTrrAll.1
LIGHT
ASSEMBLY
I i~~~~HT I il;~~MBLY
I1,...:::.:.1_ BRAKE = = = J
LIGHT I
(Optional)
RAKE
_ .. ~ .. ~.=-W??i'UU""'lI>
I
GRN
GRN
C1SS (Optional)

GRN
lmillllilllllillllUlillllUlillllUlillllUlillllUlillllUiIIIIiIIIIliIIIIU_
GRN

CD '"
S275
1 Lights

CB5
g;
5160
GRiIii!N_••!)IIIi!MIIIIIi!MII_GiiiIiIRililiNIIIi!MIIIIIi!MIIIIIi!MIIIIIi!MII~S
Accessory .. GRN lit _ _
C75
""'iIl_GiiilRmNllli!Mllllli!Mllllli!Mllllli!Mllllli!Mllllli!Mlliilll»)"lIIi!MIIiIIIIGiiiIiIRIIII!NIIIi!MIIIIIi!MIIIIIi!MIIIIIi!MIIIIIi!MII.q!ll~J'l.lIIi!MIIlIIi!MIIlIIi!MIIiIIIIGiIIIIRiIIIINllli!Mllllli!MlliIIIIlSt:
C84
;; t

-------~._----

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 LT GRNIYEL

Automatic
Level Control S142

IN-LINE
DIODE
B

piIIIIIII!lIi!-IIIIIIIIIII[~_IIIIIII!IIIIIIIIIIIIIIIIIIIIII"'IIIIIII!IIIIIIIIIIIIII!IIIIIIIIIIIIII!IIIIIIIIIIIIII!IIIIIIIIIIIIII!IIIIIIIIIIIIII!IIIIIIIIIIIIII!IIIIIIIIIIIIII!IIIIIII=
5112 BRN

~_~illllllliIIII!.'::_ _c:;;J_ _::;_ _EB::J:-mNmIWEr~;~_::;_ _E::;lI!IIIIIIIIIII[_::;diIiiI~5~o..:=HT I'

BRNIWHT .I.
BRN
BRN
BRN
5211
T C76

~_GI!I!!RiliiN_m4b>
I' Right
Accessory
C56 Light

ICD
BRN
TRUNK r =====1 =====-, RIGHT
BRN LIGHT I RIGHT I BRAKE I SADDLEBAG
BRNIWHT
ASSEMBLY
I
I
@ BRAKE
lIGHT/
TAILLIGHT
I
I
LIGHT/
TAILLIGHT
I LIGHT
ASSEMBLY

I
LICENSE l AKE RAKE I
PLATE =====J =====J
GRN GRN
G" LIGHT ~--.S157
See
Ground
Distribution.
GRN 1 C76 GRN
C78

C56 page 2-13.

~--~S158
GRN
I cn
GRN GRN
GRN

pIIIIR----~,----------- .J
S159

GRN GRN I
![]1Il1111I1111111111[!IIIIIIIIII!M~ __

8161
See Ground
Distribution, 'I;
GR

C192

G~:l
page 2-13.
GRN mil

See Ground

I Distribution,
page 2-11.

GRN I
.... G100

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 Tail, Parking, and License Plate Lights: Int
Circuit Schematic

See Power
Distribution,
page 2-9.

See Power
Distribution,
page 2-7.

BRN

BRN
BRN

S:: i CBS
BRN BRN

'

CENTER
liGHT
ASSEMBLY
(Optional)

'---_._----_._----_......_ - - - - - - -

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 5412 C77
~_lilllllllllf~lIIIIIIIf.1IIIIIIIfIIIIII1IIIIIIIfIIIIII1IIIIIIIfIIIIIIm(~1IIIIIIIfIIIIII1IIIIIIIfIIIIII1IIIIIIIfIIIIII1IIIIIIIfIIIIII1IIIIIIIfIIIIII1IIIIIIIfIIIIII1IIIIIIIfIIIIII1IIIIIIIfIIIIII1IIIIIIIIi
BRN

BRN
!!!!!p_ _ IIfIIfIIfIIfIIB=HL- _ S21 0 BRNIWHT Right Rear
_ _ IIfIIfIIfIIfIIIIfIIfIIfII"",WIIfIIfIIfIIfII iii
BRN/WHT 1 C76
Side Marker
Light
BRN
BRNIWHT
S211 •
BRN
T IIIIIIIIfGIIIIIRIIIIINIIfIIfIIfII_~
iii Right
Accessory
C78

C56 BRN
BRN Light

BRN

I LICENSE
PLATE
LIGHT
TRUNK
LIGHT
ASSEMBLY
r
I ~:WAttlE
I
I
~

GRN
LIGHT!
TAILLIGHT
===~=~

AKE
=====J
I
I
I
r
I
I TAl
L=
======~ fliGHT

I ~ BRAKE
LIGHT!
TAILLIGHT
AKE

GRN
I SADDLEBAG
I ASSEMBLY
I
LIGHT

=====J
II!>... GRN
!iI'" l1li".. ~ S457
See
Ground
GRN 1 C78

Distribution, GRNI C76 GRN

page 2-19. GRN
~ II .S458
C77
GRN GRN

8459
~ 1IfI fI fI Il l l l lfIl l l l lfIl l l l lfIl l l l lfIl l l l lfIl l l l lfIl l l l lfIl l l l lfIl l l l lfIl l l l lfIl l l l lfIl l l l lfIl l l l lfIl l l l lfIl l l l lfIl l l l lfIl l l l lfIl l l l lfIl l l l lfG~R:N~1I I I I If1l l l l lf1
GRN
,SIIIIIIIIIIfIlllllllllfIlllllllllfIlllllllllfIlllllllllfIlllllllllfIm

GRN GRN I
5
See Ground s~t:-l
Distribution,
page 2-19.
GRN
~ G100

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 Brake Lights: Asp and SE
Circuit Schematic
~~~,~T ALL TIMES I HOT IN ON )
r===~"%"~~~===:'==========-======-~== ===m:u FUSE/
I @ @ BLK I RELAY
I BOX
II STOP
FUSE
HORN/TURN/
STOP RELAY
FUSE
See Power
Distribution,
d...
Q
BLK
111111 "'" 5105
I
I
I
1506. 15.0. page 2-2. BLK
1 CD
I
I
I HORN/ I
I ------ TURN I
I RELAY I

! -"eo (~l------,,:~~~~~~~~~-~~ ::rn~~

I I S109 @ """=z z Z Z .... """ """ ..... :::z ..... z @ 5107 Distribution,
, I U ~ page 2-12.
I ' ~~~~ See Power Distribution, ~ ~_ G100
I page 2-2. WHT/GRN

I L= = = WHT/GRN
r;;:z:~:F •._2
WHT/GRN
.... (
WHT/GRN

I ~ ~~OO ~
\V FRONT BRAKE REAR
I STOP LIGHT SWITCH BRAKE
LIGHTS LIGHT

L==
'
===~-J=~~~J
~R~. 5241
GRNIYEL 1',
C321
C57
SWITCH

Cruise ,A!IbW
Control ~
GRN
GRNIRED i I See Ground
Distribution,
GRNIYEL
M:2Ii1iGiR:i;;Nmi/OiijRre::N:.-, IiliGcRN::JIIlYmEmL IlE:;;iiII!
C10 I page2-12. ~ @r
m:::l

GRNIYEL
F~~~iii:::aII~-'@"-
GRN/RED
S305 I GRNIYEL
_@iiiii@jt
~ G100
a@
S242
S243
GRNIYEL
;ww::--l
GRNIYEL Spoiler
~ IC75
G"'"CCl C76
GRNIYEL
I C77

Brake/ GRNIYEL GRNIYEL C78

CB5 Taillight GRNIYEL
====l~~~;rDLE_ r= L:==---- -lmmr r==== =l~lGD~IEBAG
IBAG , BRAKE ,ASSEMBLY 'BRAKE ,LIGHT
1~I~JIlMBLY I ~~rJ~HT I I ~~rJ~HT I ASSEMBLY

=====J ~KElm~===~~J~J
GRN I GRN GRN
L==_~~I~~
GRN
See Ground lID GRN S157 @ ~ C78
Distribution, 1@S16°GRNlseeGroundI
page 2-13. GRN
C75
GRN
GRN I C76

GRN
Distribution,
page 2-13.
GRN
C77
GRN
~---. S158 ~ GRN
S159 • _lIiIIIIIIIillilllllllillilllllllillilllllllillilllllllillilllllllillilllllllillilllllllillilllllllillilllllllillilllllllillilllllllillilllllllillilllllllillilllllllillilllllllillillllllliiilil
GRN
GRN I
lliliillilllllllillilllllllillilllllllillilllllllillilllllllillilllllllillilllllllillilllllllillilllllllillillllllli_. S161
GRN !II!
l c10
l See Ground
Distribution, page 2-13.
GRN
I
J!. G100

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 Int

~ AT ALL TIMES I I HOT IN ON ]

r==--- -------------------r--1FUSE/
f";';\ r.;;.. RELAY
I o ~ BLK BOX I
I
I STOP HORN/TURN/
I
I
I
I
FUSE
15A
STOP RELAY
FUSE
15A BLK
BLK See Power
S106 @} ~I Distribution,
page 2-9.
I
L ., 1
I -,------------- C&ORN/TURN I
_______________ RELAY I
I
I WHT/RED
I
I I
I
I
I
-""F[,.9 -:-.=-.:.:"", .:
I @}-z:::::z:;;=...,.~.... ... ..........=:;;;;;@} S107 SeeGround
~':.. ~~-..:;;;;.~
I I ~ See Power Distribution, ~~ Distribution, ~ G100
I I
GRN/ORN page 2-9.
WHT/GRN
page 2-17.
I WHT/GRN WHT/GRN WHT/GRN WHT/GRN
I -, ):.z: @}~.... ... =:(
I ® I C57 S108 C81
_"F=91 REAR
I STOP I FRONT BRAKE
LIGHTS I LIGHT SWITCH BRAKE
I RELAY LIGHT
Ib-. . .td SWITCH
ILm=====[ - --- I GRNIYEL 'W' C321
==== GRNIYEL

GRNIYEL
C10
GRN
I See Ground
Distribution,
GRNIYEL
&
J
C57

S243 GRNIYEL
C81

GRNIYEL
GRNIYEL

F~:iiIiiim::;;mm::;;B~8
S305 i GRNIYEL
I
.J!.
-
page 2-17.

G100
~~_8_~~~~::JiIIIIIIIIII[~~

-------1
S242 GRNIYEL

GRNIYEL
I C76
cn
C8S , C75 GRNIYEL

-===1 §i1bLE_GRN~~~t:;--== ----=

GRNIYEL GRNIYEL

- - 1 TRUNK --'RIGHT
I
IGHT) LIGHT I I
SADDLEBAG
I BRAKE I BAG I BRAKE I ASSEMBLY BRAKE I
LIGHT
I lIGHT/ LIGHT I lIGHT/ I lIGHT/ ASSEMBLY
!T~I ~J~I~I~~~~I ASSEMBLY I I TAILLIGHT I
I=__ =~I~LJ
TAIlliGHT
"'- ------ @,~KEfT~===~~
GRN GRN
~J
!!i'~~
GRN See Ground
Distribution,
II>. GRN
II'" I@} S460
S457 8
GRN 1 See Ground
GRN

".----8__ en
page 2-19. C76
C85
GRN
C75
GRN
GRN J GRN
Distribution,
page 2-19.
GRN
GRN
~~
S458
GRN

1mrn 8 5461

GRN rnI

6I C10

I See Ground
Distribution, page 2-19.

JL G100

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 Trunk Light
Circuit Schematic

RED/YEL

RED/YEL
51 01 • r:;;;wre #!!i@t:Miiif

RED/YEL

RED/YEL RED/YEL

CB Radial Instrument
Transceiver Cassette Panel:
TRUNK (Optional) Deck LCD Unit
LIGHT
(Optionallnt)

~r"9! VANITY
MIRROR
LIGHT SWITCH
~_..lI (Optionallnt)

TRUNK
LIGHT SWITCH
(Optionallnt)
Closed when
trunk lid is
opened.
GRN/BLKj
Cag

r=r-j
GRN

C192*

I
L~~ .~~

G"

* Asp and SE
** Int
II ~~~r~~~:n~
pages 2-12* and 2-18** .

... G100

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 Accessory Lights
Circuit Schematic -",---,",----
~T AT ALL TIMES ] C~~~
~--------
I
-----
® -----'~E
I RELAY
I TAIl/METER/ I BOX
I POSITION i
i FUSE 10
u 15A
I BLK I
I r-~=

I WHT/YEL I BLK See Power

I I S106. ----il!IIIIIIII[-iIiI.~ Distribution,
I l __ pages 2-2"
and 2-9 **.
I
I
I
I
I
I '* Asp and SE
I '*'* Int
See Ground
Distribution,
BRN/BLU I pages 2-12 *
and 2-17 **.

"jL Gl00
I
"8115 ."". BRNIWHT See Power
"*5415 ED~mE:::J!II~~mE:::J!II~~~~ Distribution,
BRNIWHT
Cl0
1 pages 2-1 *
and 2-7**.
BRNIWHT
,

Left Side Trunk ~ BRNIWHT 8208 BRNIWHT 8210 BRNIWHT

4®W M!M EDI_~=-mE2lllllll~~4®W::JIIIIIIIE2IIIIIII~~~.
w: #iiiiii± Right Side Trunk
Marker Light Marker Light
~
BRNIWHT
xIIII' C75
Spoiler
Brake(Taillight
BRNIWHT
X, C76
Left Brake BRN BRN f
'~~iIJm!llllllll[!IIIIIIII[!IIIIIIII[m ED 8209
BRN GRN
W:!IIIIIIII[!IIIIIIII[• •~ ~i~~t~Brake
Light!
Taillight GRN 1 5211 •
GRN 1'" ,al'II'Ig ht

LEFT RIGHT
ACCESSORY
LIGHT

Brake Lights/
<D
GRNY
ACCESSORY
LIGHT

Left Brake *5157 Right Brake

**5~~~i-
Light/ ~M!M_#iiiiii± ED 8160 * Taillights
Light!
Taillight

II
GRN
5460 ** Taillight
, C76
GRN
C75 "5158 GRN Right Rear
GRN GRN 8159* **8458ED-~ Turn Signal
Iw: It 8459** EEIiIII
GRN Light

I
Brake Light 8161*
GRN I
and Taillights .~::JIIIIIII - I t 8461**
I See Ground
GRN A Distribution,
!F'-I~ pages2-13*
I and 2-19**.
~ _J
C192 *
GRN Y
I
~ Gl00

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 Spoiler Brake/Taillight: SE Only
Circuit Schematic
I HOTINON J
-==-=1
I I FUSE/
I ®
HORN/TURN/STOP
@ RELAY
I BOX
TAIWMETER/ BLK
I I
I BLKlWHT
RELAY FUSE
15A
POSITION
FUSE
15A
I
I ~ S106
I I
I I I
I I
WHTIYEL
I
I I I
I I I
I WHTIGRN GRN
WHTI
I I
s~e~o:e~ ~~ = = =;e~:-!ouli!~!ldli!~!Ii!L
RED
I I
I l __
Distribution, iii Distribution, II I ====-,
page 2-2. 11 page 2-12.
I
WHTIGRN ~ WHTIGRN G100 I
~i"'C5; s~~::2 2' .... iOl C81 I
WHTI
GRN
I
FRONT REAR I BLK
BRAKE BRAKE I
LIGHT LIGHT I
L:~~ SWITCH SWITCH I
I
I
r' ==;:===~~=:=:=:=;:~=~~~- =J
@
STOP
LIGHTS
RELAY

GRNI GRN See Ground

See Ground
Distribution, I S241 @
YEL
llII':::i!!!!!!IF'' g~~~r~1 5115 ~ E2l~~ I Distribution,
page2-12.
I GRN/RED 1 BRNIWHT .l iii I
page2-12.

~ G100
GRN/RED
it
III
C10
Brake BRNIWHT
I C10 I~~ ~ G100

See Power
5305 ~ Lights 5208 ~ E2llCOlmEOlln~~
l
Distribution,

GRNIYEL B~~~.Jl C329

pages 2-1
and 2-5.

Brake Switch Taillight ~~~~ir

Input 6-12 Volt Input TAILLIGHT
Switched Output CONTROL
YEL
..VC329
C330
MODULE

YEL

YEL
X C331
[~~TE. '~6 volts - Taillight SPOILER BRAKE/
TAILLIGHT
12 volts - Brake Light
C331
GRN C330

GRN
T
I
See Ground
Distribution, page 2-13.

~ G100

9~20
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 Radio and Cassette: Asp and SE
Circuit Schematic --------",--""""",--------

[ HOT IN ON, ACC AND PARK =:J ["~OT AT ALL TIMES ) [ HOT WITH IGN. CR~~~~ERGIZED J
'~==& FUSE/ Q=='9lFU5E/ r==~===~~.,RIGHT
@ I RELAY ® I RELAY I Engine Stop
SWitch
I COMBINATION

LT GRN/BLK

LT GRN/BU<
ACC
FUSE
lOA
.,~=-.=-=
I BOX
I
......

RED/YEL
~C~: UP I BOX
5A
===
J
IF' = I
=
II
-i
= 1 STARTER/ I SWITCH
FREE PUSH I REVERSE

Io,====..a
L==~
I
YEL/RED
ISWITCH

===~=J
I
I

LT GRN/BLK A t f RED/YEL YEURED W C57

S 0 ~. U oma IC 5101 @1!l !!!!!!!G~ Trunk Light IIiI YEURED Reverse

UG'::" ~ -- ~~vn~~ol ~ ~,·~·cll!::2~~:~~Sy:t::ngSystem

@1!l

T"mSlg"al, REDIYEL 5198 @1!l

i
.~~JII1!
LT GRN/BU<
@1!l E:JiiiW JII1!E , .
CB!
Transceiver RED/YEL Itt
YEURED
CB Transceiver
• ;:n~~men

I
Sl 03 (optional S102 @1!l E........ (optional for Asp)
LT for Asp) RED/YEL CB
LT
GRN/ GRN RED/YEL Transceiver
BU< BLK (optional for
9 ----- 1.! Cl Asp) 19 C2

,f1Input
g nition = = = = = = = = = Mem~;= =
Power
= = = = ~ S;;;er I;u~ =
(Radio off during
= = = =, ~:~~~TTE
I DECK
C731 I start or reverse) I Solid-state:
I I Do not

1
LT I Speed In- Data I check
G:~: L = = = = = = = = !"u~ = = =D~a= = -=-~d= = ~~ = Gro~~ ~Iank~=.J resistance.

~LK
16
Automatic Cl C2
S277 @1!l ~ Level Control
Cruise WHT/BLK RED WHT BLK BLK GRY
LT Control,~== @1!l 5238

~;~al' .~
GRN/
BLK
WHT/BLK

R C73

GR~~I
C71
C66
BLI< .~_~ Instrument
4T Panel
LT GRN/BU< WHT/BLK RED WHT BLK BLK GRY
51 04 @1!l-:;;m~!!I!:3iII!I!!!E:::l!!!!!!!G~::liIII

GR~l
--R
BLK WHT/BLU C91

w~ RED WHT BLK GRN GRY

G:~ w~~ wHfr

BLU GRNI
~Tlc16
BLK
===== == == == =~=& INSTRU-
: WHEEL
SPEED po = , ,
II""Speed Igniti;' = Speed = Data = = Load= = Clock =
Input ACC Output
Data
Ground
~Bl;;nkin~1~~~T II ~:~~L
I SENSOR I Igni- Speed II I Solid- I
I
I Solid-state tion Output II I state I
I L = = = = d l "======~=~==~===============J I
~~=--==-~~=~=--=~=~====-~=~~-~~=~-=-~~~--
--------,----

10..0
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 RIGHT
FRONT
TWEETER
(Optional)

GRY/BLK GRYiBLK
!IIIlIE::~:JIIIIIIIIE,,~. B::2B::2_
BRN/BLK
1!riE:::3IIBrt::::mm::::me::::m . . . ;wo ::.1IIIIIiii!'
J '
5288 S281

With Rear Speakers (Asp)

I
+
~r -~~~-'
-
-
F='=·=·=·~·=·=·===--===·=·==~=·='~··=··=-~~='==~~==='
RADIO/
+
~~~ '=. ~ ~="-:r- ="'-="'~ . 1--
:-r-ct'
Ground
CASSETTE DECK
I Solid-state:

---
b .:::!?".::::;;=--- Do ,not check
GRN reSistance,

---'1"----_.------1-----1' I
BLur GRY/BLK RED/GRN BRN/BLK
See Ground

r
GRN

C300 Distribution,
BLU/
GRN
GRY/BLK RED/GRN BRN/BLK GRN I
....
page2-12,

G100
FADER
Solid-state:
Do not check
resistance,
'l'll:I>:>.~""""'= =
- =

I + - + - + - + - I
BLU/ GRyIWHT RED/

r----I--r---1
GRY/BLK RED/GRN BRN/BLK BLUIYEL BRNIWHT
GRN YEL

r----_
,,-- .._-----_.~ ~

.I, ---------'I1------
~_.~~~
~
-~-=~"
C303

~~~ GRY/BLK RED/GRN BRNIBLK 1

JC301
GRyIWHT BLUIYEL ~~~/ BRNIWHT C302

~ p~~~~-- ~~~/ :~~T --

r
C71 GRYIWHT

BLU' GRY/BLK RED'GRN BRN/BLK SPEAKER SPEAKER

GRN

GRN/BLK RED/GRN
S287 lID a:::~~ S289 lID ~ 11 !!!imE:::;~

:;~ i LEFT
FRONT
SPEAKER
LEFT
FRONT
TWEETER
"'";""'1 AIGHT
FRONT
SPEAKER
RIGHT
FRONT
TWEETER
UIYEL IWHT

(Optional) (Optional)

GRY/BLK

(cont'd)

10--1
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 Radio and Cassette: Asp and SE
Circuit Schematic (cont'd)
r = = = = = = = = = = = = = = = = = = = = = = = = = = = = = , RADIOI
I Ic~~~
I D~.K
I
I
9- =
,:
= = = =
--- "
=
Headset Mic
(PA)
Headset Out
(R Ch)
= = == == = = = = = = = = = = = == =
-- --'3 . ---'4
Headset Out
(L Ch)

-- G,:::I
Headset Out E
Radio Switch E

C'
= I g~I~~~~~:~k
= =..1 resistance.

~-- f":.
I =Jf I 5261 @A: .~AI I I I E:2! Ii1iC:2!1 1lE: lI I I I E~E:2! Gw.R: :JN!I I I!BLE:KAI I I I : :JI I I!E:2! m: ; m: ; :m: : :~
:
I
:
I
YEL LT GRN/RED GRN/BLK ~
S200 @ iIIIIE2_;;;a;:;;;a;:_~
GRN/BLK

I RED! I
I BLU I 5262
LT GRN!RED
i!ie;;wt:;;Mt IN¢ ;:wy:;~.;we::.;;w:~
I I
II II 5130 @ -_IIii.IIii_-_IIii.I. RIIii~_.IIIIii lI!n VEl. Ilii~~

BLK
.-_11111!_~~ _~--~1- nG'' :' GRN!BLK

C10
GRN/BLK

Without Passenger Controller With Passenger Controller

A

C10 r---i---r-I-jC10
@II_~= ~
CB

--
LT Transceiver
BLK RED/BLU
• __ __
I YEL GRN!
RED
GRN/
BLK
YEL
c_ .....
~ r - ~J~--- ~- C305
I
I BLK I ~D/B~U I
I c-_@ __ -.:::-
I LT

I LT
GRN!
GRN/
BLK
@II S282 ~~~/ GRN/
BLK
GRN!
BLK WHT
I RED BLU YEL

I r = ~ PASSENGER
I I Transmit I CONTROLLER
I I I Solid-state:
I Donot check
I I resistance.
~
=1=r=
L..== ====..1
l.T
RED! GRN/

C12
Bl.K Bl.U

=~
VEl.

m~,n""""", ..
RE

=
C12
''''''''---; ,......--....., .---....., .---~
C12
BU< WHT BLK YEL RED

PASSENGER
HEADSET
(In Helmet)

10",2
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 I!"" = == - - = - . " , RADIOI
, CASSETTE I
, Headset DECK
Mic (DR) Solid-state: I
L. = = ~~~ - = dI Do not check
GRN/BLK 10 12 C1 resistance.
BLK

5
GRNiBLK ~ ~
;go - ;row; - " } I I
I I
LT GRN/RED
C21
LTGRNI RED
IWHT I
I I
I I
YEL YEL ~ ~
BLK
r=== GRN/BLK "II
F-=-"===-====---~' C73
BLK~f:fC~~
II ~~I~bH I'I
I,
t===!
SWITCH

,
)"""'"
MUTE

OFF.~ O~==
--:;]
TUNE
UP _ _
b~~N
~~NE
*:

Q£~ ==_JJ
I I, "
II
, ,
YEL

YEL
LT GRNI
RED

RED
GRNI
BU<
-

-- ---n BLKr

BLK
e -=..
WHT

WHT
_.j

C311

LEFT it~ ~~. = ' ==-='~-~,*,.~.=-==-~" DRIVER'S

COMBINATION I 'HEADSET
BLUiBLK REDiBLK SWITCH I I (In Helmet)
~==~=====~======d

C21

BLUiBLK RED/BLK YEURED

5260
I
~
YEURED
C304
_ _E_=-E::2II!!i(.!!i!lIIIIII!!i!lIIIIII!!i!lIIIIII!!i!lIIIIII1IIIIIIIIIII

RED/BLK
ANTENNA

5259 ~ iiiit:::liiiiii::::a

6 __ 7
RED/BLK

1
__ 8 C1
F =, = ' = . = = = = , = , -= -= = =- = =
I Muting
Switch
On
Search
Switch
Up
Search
Switch
Down
YEURED

'=ili== = =- =- = = ''='i RADIO/

~

CASSETTE
DECK
Solid-state:
r=
,Tune

I
Up
===
Tune
Down
="lIPASSENGER
CONTROLLER
Solid-state:
Do not check
B.=.======J resistance.
~
I
I
~ ==~.
I
I
I
I
' Do not check I
b~~~~~~~~~========= __ ==========_=_~ffisis~nce.

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 Radio and Cassette: Asp and SE
Circuit Schematic (cont'd)
Speakers - SE
r====~='====--===~>=='='=====~~=='='~'III1I1II1I1R===='='=~ RADIOI

I Left
-
Left
+
Right
+
Right
- J
I CASSETTE
I PLAYER
~===~~=====~==~=-============-==~=~~
C1
GRY/BlK BlU/GRN RED/GRN BRN/BU(

~ It": ¥@MIt ¥@MIt "liIIlllIlL'

BlU/yEl RED/YEl
~t~

-=I
IIIED liB
BRNIBlK

,==== ~=== =-_ . . . . . C130

GRY/BlK BlU/YE RED/YE BRN/BlK

Left FADER
Right

GRY/BlK BlU/YEl

GRY/WHT BRN/WHT

C130
BRN/WHT
BRN/BlK
1'f5&tW;;;t:§t" ~ JIijIll\lt""~

BlU/
GRY REDI BRN/WHT
GRN
VEL

C302
LEFT
BRN/BlK BlU/ REAR
VEL
SPEAKER

en
~~~ r - - ~RY/BlK --- - - - -:D/G:r - - -:R:B:

I 1
GRN/BlK RED/GRN
S287 ~ a::::JOiIIIIE......... . . 5289 • *" ......... MiF ....
BlU/ RED/GRN
GRN

LEFT LEFT RIGHT RIGHT

FRONT FRONT FRONT FRONT
SPEAKER TWEETER SPEAKER TWEETER
(Optional) (Optional)

GRY/BlK BRN/BlK

10",4
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10..5
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 Radio/Clock: Int
Circuit Schematic ~-----------------------

I HOT IN ON, PA~;;;:;;D A~ [ HOT AT ALL TIMES I [ HOT WITH IGN. CRUISE RELAY ENERGIZ~
r=== =@======== =®===I~lli IF== ====~="IRIGHT

I = = Engine I COMBINATION
I ACC BACK UP 1BOX I
rSAT2 """II
I
Control SWITCH
I FUSE
10A
FUSE
SA
I
I
IFREE I 11
STARTER
b== ========== ====~ I PUSH
I. - STJ SWITCH 1
1-=== 1
LT
GRN/ LT
REDIYEL Ib=== =====.J
BLK GRN/ YEURED
BLK

Hazard Lights ~TL~RN/ See Power

CB S102 @ lIII::.3~ Distribution, YEURED
5103 @!IIIIIIIIIE'4ffl ~ Transceiver page 2-6. S198 (ID _ ;we;we . . Starting
System
(optional)
YEURED CB
~~EDc:;;;. Transceiver
(optional)
LT GRN/BLK REDIYEL YEURED

8 ..18 C1 :3 C2
r= Ig7illi~ == = = = == = =M";"m7ry= = = = = == = = =St;rt~I;W~ = = I ~~~I_~f~;?CK
I Input . (Radio Muted Do not check
II Ic:t:OOw Clock Display DUring Start Cycle) II resistance.

L============~~~================J 12 C1

GRN

See Ground
I Distribution,
page 2-18.

GRN
I
~ G100

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 r=====~======·======-===========, RADIO/CLOCK
I I Solid-state:
Headset 1Do not check
I Mlc Headset Aux In Aux In Aux In I resistance.
1 E(OR) MIC(DR) (E) (Lch) (Rch)
L====~_~~=~======~_=====~====~J
10 9 C1 4 -----'5- -----'6 C2

From RADIO/CLOCK ,,- BlK

"-1 -= '"1I
(cavity 15) and
MUTE/SEARCH SWITCH ~
on page 10-11. I
WHT SHIELD SHIELD
1,,- I
GRN/BlK
•'-= ) BlK

C55
BlK

.,."
I'
'),
"1
GRN/BlK BLU WHT
I BLUI
VEL
I
1 SHIELD
I I

BlK
{", '~
,¢?
.I
~=.====.== ====~=-=
C137 C136
BlK
._~
,,--- )
BlK

~l
I WHT I SHIELD I SHIELD
1"""",,- 1
-~
-=
BlK
i: )I .-
BlK

r= ====fu_= """'llDFlIVER'S IF""'JIlb,----"""""'JIlb,"""""'..............Y._......"""""'''ii AUXILIARY

1 I HEADSET INPUT
I I (In Helmet) CONNECTOR
For Tape player or CD
I I connection
~===~.===~~===.=J

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 Radio/Clock: Int
- Circuit Schematic (cont'd)

r~~ = = = == = = = = = = = = = = = = = = = ==0 RADiO;

I I CLOCK
I Headset Mic Headset Mic Headset Out Headset Out g~I~~~~a~:~k I
I E(PA) (PA) (R Ch) (L Ch) resistance. I
O=====~====~~===========~
5 17
p-------
;::I==~~~_.''''''

11 4
-----
........ Cl
BLK

cr-=-
I
I
=:,I
I
YEL LT GRN/RED
GRN/BLK

I I
I I
I RED/ I SHiELD
I BLU I _ _ ;;i@
S262 ~re:';J!!!!!!!F

I I
I I
I I S130 ~
I- I
BLK -=-- =~
,,1 LT GRN/RED GRNIBLK

, - ~ - - - - - - i ~-----; ~-----i M~~==·~= Cl0

YEL LT GRN/
RED

cr-=-
I
I
=:,I
I ......... = = " " ' "
C55
I
I
ISHiELD
I REDI I
I BLU I
YEL LT GRN/RED GRN/BLK

I I
I I
I I
I
~-=-
LTGRN/

=~
YEL RED

With Without
BLK
Passenger Passenger
Controller Controller

.
.-_.__
C12
~ ... 3F? ,
._- ~._---"_. ........ -._._-_. -_.- (Cavity

mf-~,~]
C12 not used) C137

BLK WHT YEL RED BLK

PASSENGER'S r = = = = 'II DRIVER'S

HEADSET I I HEADSET
(Optional) I I (Optional)
(In Helmet)
I.======J (In Helmet)

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 IF = = = = = = - = = = = = = = 8 RADIO/
I I CLOCK
I I Solid-state:
Headset Out E Do not check
I Radio Switch E I resistance.
O======.====~====.J
3 C1
GRN/BLK
GRN/BLK To Driver's Headset
on page 10-9.

GRN/BLK

LEFT
GRN/BLK GRN/BLK COMBINATION
SWITCH
r==='-=-' ======0
I MUTE/ r·='= ~=,..=='='== ===~~=., II
I SEARCH I
I SWITCH I I
I MUTE TUNE I I
I I TUNE
DOWN I I
UP
I I OFF ON TUNE I
I L=== ==== ~£.W~'" I
I I
6=====_= ===J

BLU/BLK RED/BLK

;:1
C21 CB Transceiver

- <'"""I -,:~:I G<~-I (~ Gloal) ~ W",

E'~ II
8259 €)

f- 1-r-r'
A

=
---]---I---]
= = ==.= ==
C304

==0 PASSENGER
I Up-On Up Transmit I CONTROLLER
I (Optional)
I Solid-state:
BLU/BLK RED/BLK YEl/RED
~====-=--=========J~~~~
resistance.
ANTENNA

C333
) 1
16 1l. __1.!i, C1
I
r = - - = == = == - = = = = - = - = == = = = = = - = - = = = - = = = = , RADIO/
· G105

Muting Search Search I CLOCK

I SWitch SWitch SWitch I Solid-state:
I On Up Down Do not check
L= - = == = ,- = = - = = = = = = ==._ = _ = = = _ = = = = _ = = ====J resistance.

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 Radio/Clock: Int
Circuit Schematic (cont'd)

Without Rear Speaker

r = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = " RADIOI
I I CLOCK
Soild-state:
I - + - Ground +
Do not check I
L ='~ -= -= = ~ -= -= = ' -= -=,~,= ~':li:lIIl!!l:li:'====-=== =- =~, -=- -- ~~. ~ ~ ~ mil resistance

c,,,::r--- ew'~:T------~w':' --- ,m~{-----~:: I. ::'G'O""d

= =

GRY/BLI<

r·----- --------.-
-----:1 I
BLUiGRN BRN/BLK RED/GRN
C130

GRN
~~~~~~~i~~,
.

GRYiBLK
---"WG,r-LEFT ---- "",,,: ---- "o~"' C55RIGHT ~ G100

FRONT FRONT
SPEAKER SPEAKER

With Rear Speaker (optional)

r =. =. =. =. =. =.=-==-~-~.~ =- ~ = ' = ..= = ===-===_-mmm ~ = - = ~ ~.==-=-=-, RADIO/
I I CLOCK
I + - + - Ground I Solid-state:
Do not check
13= .= , -
It.= = -=-=- -
=-=
.-=-=.= =-
-- =-=- - = = = = = = ='=.==-='='=-G:~1=C=1
= -=-=- =r"-----~.- r" - ..lI res·lstance.
14 6 5

See Ground
BLU/GRN GRYiBLK RED/GRN BRN/BLK
• Distribution,
page 2··18.
GRN I
C130 j L G100
II"""'"...;;.,.;;........,;;;;,;,,;,,,.-~;;;.;;;;.;;;.;;;;;;,,'--,;;;;;;;;..;;---;;;;,;;;;;.;;;;.,,_ _~~.;;;;;..-.;;........,;;;;.;;;;;.;;;;;;;.;;;;;;;.;;;;;;.;;;;;,c;..;;;,.~-~"
-'~=-~~~~~~~~=-"""1lFADER

- + - + - + - +

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 How the Circuit Works
Asp and Sf Models Headset Operation

The radio system is made up of the radio/cassette The driver and passenger helmets may be equipped
deck, driver and passenger headsets, left with headset units. These headsets contain
combination switch, instrument panel, and a speakers and a microphone to allow two-way
passenger controller. The radio receives battery communication between driver, passenger and CB
voltage from the ACC fuse with the ignition switch in radio. The driver and passenger headsets are tied to
ON, ACC, and PARK. The radio receives battery the radio through a microphone, left channel, right
voltage from the Back Up fuse at all times to retain channel, and ground lines. If equipped with a
station preset memory. Radio information is passenger controller, the passenger circuits run
transferred to the instrument panel LCD display through the passenger controller.
through data, load, clock, and data ground circuits.
Speakers - Sf Models
When the starter/reverse switch is pressed, battery
voltage is applied to the radio. This signal turns the The radio in the SE model uses a fader made up of
radio off during starter operation and forces the radio two potentiometers. Each one controls volume
to blank the instrument panel LCD display through between the front and rear speaker on one side. The
the blanking circuit. The left combination switch plus and minus signals from one side are tied to
contains tune-up, tune-down, and radio mute opposite sides ofthe potentiometer. The wiper is tied
controls. When the mute, tune-up, or tune-down to the front and rear speakers' common circuit. The
function is requested by pushing the corresponding minus circuit is tied to the front speakers and the plus
button, a ground signal from the GRN/BLK circuit is circuit is tied to the rear speakers. Moving the fader
applied to the respective BLU/BLK, RED/BLK, or wiper varies the potential on the common circuit.
VEL/RED circuits to the radio. If equipped with a Because the front and rear speakers are tied to
passenger controller, the tune-up and tune-down opposite speaker outputs (plus or minus), the
functions are available and work the same as the left volume is shifted between the front and rear.
combination switch.
Speakers - Asp and Int Models
If'lt Model
In models not equipped with rear speakers, the
The radio system is made up of the radio/clock, speakers are tied directly to the radio. The left and
driver and passenger headsets, left combination right sides are separated, with each side having
switch, and a passenger controller. The radio separate plus and minus terminals. If equipped, the
receives battery voltage from the ACC fuse with the front tweeters are in parallel with the standard
ignition switch in ON, ACC, and PARK. The radio speakers.
receives battery voltage from the Back Up fuse at all
In models equipped with rear speakers, the radio
times to retain station preset memory.
speaker outputs are tied to a fader. The fader has
When the starter/reverse switch is pressed, battery separate outputs for left front, right front, left rear, and
voltage is applied to the radio. This signal turns the right rear speakers.
radio off during starter operation. The left
combination switch contains tune-up, tune-down,
and radio mute controls. When the mute, tune-up, or
tune-down function is requested by pushing the
corresponding button, a ground signal from the
GRN/BLK circuit is applied to the respective
BLU/BLK, RED/BLK, or VEL/RED circuits to the
radio. If equipped with a passenger controller, the
tune-up and tune-down functions are available and
work the same as the left combination switch. If
equipped with an auxiliary CD or cassette player, the
player is tied into the radio/clock through ground, left
channel, and right channel inputs.

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 Radio
Troubleshooting~~~~~~~~~~~~~~~~~~~~~~~~

SYMPTOM DIAGNOSIS
-" , ~"",""="''' ,"u"'"""'",,

@ Radio does not come on and radio @ Blown ACC fuse.

information does not appear on display. @ Open LT GRN/BLK circuit or GRN circuit
to radio/clock or radio/cassette deck;
do test A.
,."..~ =='''=='''~,
""

® Radio loses preset station memory. ® Blown Back Up fuse.

® Open RED/YEL circuit.
-,
® Radio does not turn off during starter ® Open YEL/RED circuit.
cranking.
.
® Radio volume does not vary with vehicle ® Open WHT/BLK circuit or faulty
speed (Asp and SE models). radio/cassette deck; do test B.
_ _ _ _,,,,=,,,,,,,,,,,,,,,w,,,
"
,
=
"
,
~
""== "

® Radio operates but radio information is ® Open or shorted data, load, clock,
missing, or does not display properly. ground, or blanking circuits between
instrument panel and radio/cassette
deck; faulty radio or instrument panel;
do test C.
~- "' """

@ One or more front speakers are @ Faulty speaker(s).

inoperative (Asp model without rear @ Open or shorted speaker wires or faulty
speakers).
radio/cassette deck; do test D.
"'''= '===W" ~.m

--
@ One or more speakers are inoperative ® Faulty speaker(s).
(Asp model with rear speakers). @ Open or shorted speaker wires, faulty
fader or radio/cassette deck; do test E.
_. , ....
~-_ ..
,,"~,~,

@ One or more speakers do not operate ® Faulty speaker(s).

(SE model). ® Open or shorted speaker wires, faulty
fader or radio/cassette deck; do test F.
"''''''''W.''· »'=,
_. .~....."".

® All speakers operate but fader is ® Open speaker wires, faulty fader or
inoperative, or one side is much louder radio/cassette deck; do test G.
(SE model).
'=""""'"''''''''''''''.''' m~=. uh'u.=......,,_

® Driver and passenger headsets, mute, ® Open GRN/BLK circuit at radio/cassette

tune up, and tune down functions are deck C1 pin 15.
inoperative.
® Faulty radio/cassette deck.
- . ","'=""""""""_""-u",,,,,,,_,,,==,,•

® Passenger headset is inoperative ® Open GRN/BLK circuit at passenger

(without passenger controller). headset or faulty passenger headset;
do test H.

® Passenger headset is inoperative ® Open GRN/BLK circuit at passenger

(with passenger controller). controller; faulty passenger headset or
controller; do test K.

10.. 12
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 -~

SYMPTOM DIAGNOSIS
,-
" "'"""'''"

@ Passenger microphone is inoperative, @ Open or shorted RED/BLU circuit. Faulty

but headset speakers are OK passenger headset or radio/cassette
(without controller). deck; do test H.
"",,""

@ Passenger microphone is inoperative, @ Open or shorted RED/BLU circuit, faulty

but headset speakers are OK controller, passenger headset or radio/
(with controller). cassette deck; do test K.
"'''

@ Passenger LH and/or RH headset @ Open VEL or LT GRN/RED circuits be-

speakers don't operate (without tween headset and radio/cassette deck.
passenger controller) . @ Faulty headset or radio/cassette deck;
do test H.
.. _....

@ Passenger LH and/or RH headset @ Open VEL or LT GRN/RED circuits

speakers don't operate between radio/cassette deck and
(with passenger controller). passenger controller.
@ Faulty headset, radio/cassette deck, or
passenger controlle; do test K.
,

@ Passenger and driver LH or RH headset

@ Open or shorted VEL or LT GRN/RED cir-
speakers don't operate. cuits between passenger controller and
radio/cassette deck.
@ Faulty radio/cassette deck; do test J.
..... .w.=~~ •.•. ~_,
""'''

@ Driver's headset does not work but @ Open GRN/BLK circuit, BLK circuit, or
passenger headset is OK. faulty driver's headset; do test I.
~-- .. ..
" ."".. .-
@ Driver's LH or RH headset channel does @ Open VEL or LT GRN/BLK circuits, faulty
not work. driver's headset or radio/cassette deck;
do test I.
f-"._".' ,-
@ Mute and/or tune up, tune down search @ Open or shorted left combination switch
functions do not operate from left wires, faulty left combination switch or
combination switCh, but headsets radio/cassette deck; do test L.
operate normally.
=" u,n"

@ Tune up and/or tune down search @ Open VEL/RED, RED/BLK, or GRN/BLK

functions do not work from passenger circuits or faulty passenger controller;
controller. do test M.
_ _ _un...",,,,,u»»

@ Poor reception. @ Faulty antenna or antenna wire.

. ",,,,,,,,,,. ,,,,,,,,,.,,,,
@ Driver's microphone is inoperative but @ Open WHT circuit between driver's
headset speakers are OK. headset and radio/cassette deck.
@ Faulty driver's headset or radio/cassette
deck; do test I.
un",,,

@ Auxiliary tape or CD player does not play @ Open power or ground circuit.
(Int models). @ Faulty player or radio; do test N.
",,,,,=,,,,~==.,",,,,,,m_,,~,m

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 Radio
Troubleshooting (cont'd) ~------

Test A: Radio Does Not Operate and Radio Information Does Not Appear On Display
Note: Go to step 3 for Int models. Go to step 1 for Asp and SE models.

1. Disconnect radio/cassette deck connector C1. Put ignition in ACC and check for battery voltage
at pin 9 (LT GRN/BLK).
If yes, go to step 2.
If no, service LT GRN/BLK circuit for an open.

2. Check for continuity between the GRN circuit and ground.

If yes, go to step 5.
If no, service GRN circuit for an open.

3. Disconnect radio/clock connector C1. Put ignition in ACC and check for battery voltage at
pin 8 (LT GRN/BLK).
If yes, go to step 4.
If no, service LT GRN/BLK circuit for an open.

4. Check for continuity between the GRN circuit and ground.

If yes, go to step 5.
If no, service LT GRN/BLK circuit for an open.

5. Check for battery voltage at pin 18 (RED/YEL) circuit.

If yes, repair or replace radio/casssette deck (Asp and SE) or radio/clock (Int).
If no, service RED/YEL circuit for an open.

Test B: Radio Volume Does Not Vary With Vehicle Speed (Asp and SE Models)

1. If speedometer does not operate, repair speedometer. If cruise control does not work, go to
cruise control. If cruise and turn signals operate properly, disconnect radio/cassette deck
connector C1 and connect voltmeter at C1 pin 16 (WHT/BLK). Turn ignition switch ON and
slowly turn front wheel. Voltage should alternate between 10 and 0 volts as wheel is turned.
If yes, service radio/cassette deck.
If no, service WHT/BLK circuit for an open.

Test C: Radio Operates but Radio Information Does Not Display Properly (Asp and SE Models)

1. Check continuity at RED, WHT, GRY, and two BLK circuits between radio connector C2 and C91.
If yes, go to step 2.
If no, repair open circuits.

2. Replace the radio/cassette deck with a known good unit.

Operate radio to see if display operates normally.
If yes, replace the radio/cassette deck.
If no, replace instrument panel.

Test D: One or Both lH Front or RH Front Speakers Are inoperative

(Asp and Int Models Without Rear Speakers)

1. Disconnect suspect speaker(s) and momentarily connect a 1.5 volt battery across the suspect
speaker terminals and listen for a "click" sound.
If yes, check suspect wires for an open and check connector terminal connections. If they are
OK, replace the radio/cassette deck.
If no, replace the suspect speaker.

10",14
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 Test E: One or More Speakers Are Inoperative (Asp Model With Rear Speakers)
1. Operate the radio. Do any speakers operate?
If yes, go to step 2.
If no, go to step 5.

2. Adjust balance control toward LEFT. Does at least one LH speaker operate?
If yes, go to step 3.
If no, go to step 5.

3. Adjust balance control toward RIGHT. Does at least one RH speaker operate?
If yes, go to step 4.
If no, go to step 6.

4. Disconnect suspect speaker(s) and momentarily connect a 1.5 volt battery across the suspect
speaker terminals and listen for a "click" sound.
If yes, check suspect wires for an open and check connector terminal connections. If they are
OK, replace the fader control.
If no, replace suspect speaker.

5. Disconnect fader connector. With ignition in ACC, tune in a strong station. Adjust balance control
towards LEFT and volume on high. Connect voltmeter across BLU/GRN and GRY/BLK circuits
from radio. With voltmeter set on lowest scale, check that A/C voltage varies around 1 volt.
If yes, go to step 4.
If no, check BLU/GRN and GRY/BLK circuit for an open.
If the wires are OK, replace the radio/cassette deck.

6. Disconnect fader connector. With ignition in ACC, tune in a strong station. Adjust balance control
towards RIGHT and volume on high. Connect voltmeter across RED/GRN and BRN/BLK circuits
from radio. With voltmeter set on lowest scale, check that A/C voltage varies around 1 volt.
If yes, go to step 4.
If no, check RED/GRN and BRN/BLK circuit for an open.
If the wires are OK, replace the radio/cassette deck.

Test F: One or More Speakers Do Not Operate Normally (51: Model Only)
1. Operate the radio. Do any speakers operate?
If yes, go to step 2.
If no, go to step 5.

2. Adjust balance control toward LEFT. Does at least one LH speaker operate?
If yes, go to step 3.
If no, go to step 5.

3. Adjust fader control toward RIGHT. Does at least one RH speaker operate?
If yes, go to step 4.
If no, go to step 6.
4. Disconnect suspect speaker(s) and momentarily connect a 1.5 volt battery across the suspect
speaker terminals and listen for a "click" sound.
If yes, check suspect speaker wires to fader or radio/cassette player for an open. If wires are OK,
replace the fader control.
If no, replace the suspect speaker.

(cont'd)

10.,,15
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 Radio
Troubleshooting (cont'd) ~---'''''"'--''''''-'''''''''--- --- --------
5. Disconnect C130 (fader connector). With ignition in ACC, tune in a strong station. Adjust balance
control towards LEFT and volume on high. Connect voltmeter across GRY/BLK and BLU/YEL
circuits from the radio. With voltmeter set on lowest scale, check that A/C voltage varies around
1 volt.
If yes, go to step 4.
If no, check GRY/BLK, BLU/GRN, and BLU/YEL circuits for an open. If the wires are OK, replace
the radio/cassette player.

6. Disconnect fader connector. With the ignition in ACC, tune in a strong station. Adjust balance
control towards RIGHT and volume on high. Connect voltmeter across RED/YEL and BRN/BLK
circuits from the radio. With voltmeter set on lowest scale, check that A/C voltage varies around
1 volt.
If yes, go to step 4.
If no, check RED/YEL, RED/GRN, and BRN/BLK circuits for an open. If the wires are OK, replace
the radio/cassette player.

Test G: Fader Does Not Operate Normally or One Side Is Much louder (Sf Model Only)

1. Disconnect C130 (fader connector). With ignition in ACC, tune in a strong station. Connect
voltmeter across GRY/BLK and BLU/YEL circuits from the radio. With voltmeter set on the lowest
scale, check that A/C voltage varies around 1 volt.
If yes, go to step 2.
If no, check GRY/BLK and BLU/YEL circuits for an open. If the wires are OK, replace the
radio/cassette player.

2. Connect voltmeter across RED/YEL and BRN/BLK circuits from the radio. With voltmeter set on
the lowest scale, check that A/C voltage varies around 1 volt.
If yes, go to step 3.
If no, check GRY/BLK, BLU/GRN, and BLU/yEL circuits for an open. If the wires are OK, replace
the radio/cassette player.

3. With C130 disconnected, jumper GRY circuit to BLU/yEL circuit. Put ignition switch in ACC and
operate radio. Listen to all LH speakers. They should be equally audible.
If yes, go to step 4.
If no, service GRY circuit for an open.

4. With C130 disconnected, jumper BRN/WHT circuit to RED/YEL circuit. Put ignition switch in ACC
and operate radio. Listen to all RH speakers. They should be equally audible.
If yes, replace fader.
If no, service BRN/WHT circuit for an open.

Test H: Passenger Headset Is Inoperative but Driver Headset Is OK (Without Passenger Controller)

1. Disconnect C12 and put ignition switch in ACC. Turn radio on. Check for 5 volts at GRN/BLK
and LT GRN/RED circuits.
If yes, go to step 2.
If no, check suspect circuit for an open.

2. Check for 5 volts between GRN/BLK and BLK circuits, between GRN/BLK and YEL circuits, and
between GRN/BLK and RED/BLK circuits.
If yes, go to step 3.
If no, check suspect circuit for an open. If wire is OK, replace radio/cassette deck.

10=16
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 3. Check RED/BLU and YEL circuits for a short to ground.
If OK, go to step 4.
If not OK, repair suspect circuit for a short to ground.

4. Check continuity of circuits in headset jumper cable.

If OK, go to step 5.
If not OK, replace headset jumper.

5. Connect a known good passenger headset. Does the substitute headset now operate?
If yes, replace the passenger headset.
If no, replace radio/cassette deck.

Test I: Driver Headset is Inoperative but Passenger Headset Is OK

1. Disconnect C311 and put ignition switch in ACC. Turn radio on. Check for 5 volts at GRN/BLK
and LT GRN/RED circuits.
If yes, go to step 2.
If no, check suspect circuit for an open.

2. Check for 5 volts between GRN/BLK and BLK circuits, between GRN/BLK and YEL circuits,
and between GRN/BLK and WHT circuits.
If yes, go to step 3.
If no, check suspect circuit for an open. If wire is OK, replace radio/cassette deck.

3. Check WHT and YEL circuits for a short to ground.

If OK, go top step 4.
If not OK, repair suspect circuit for a short to ground.

4. Check continuity of circuits in headset jumper cable.

If OK, go to step 5.
If not OK, replace headset jumper.

5. Connect a known good driver headset. Does the substitute headset now operate?
If yes, replace the driver headset.
If no, check YEL, LT GRN/RED and WHT circuits for an open.

Test J: Driver and Passenger Headsets Are Inoperative

1. Disconnect C311. Put ignition switch in ACC and turn radio on. Check for 5 volts at GRN/BLK
and LT GRN/BLK circuits.
If yes, go to step 2.
If no, check suspect circuit for an open or short to ground. If wires are OK, replace radio/cassette
deck.

2. Check for 5 volts between GRN/BLK and BLK circuits, between GRN/BLK and YEL circuits, and
between GRN/BLK and WHT circuits.
If OK, go to step 3.
If not OK, service suspect circuits for an open.

3. Disconnect radio connector C1. Check YEL, LT GRN/RED and WHT circuits for shorts to ground.
Disconnect passenger headset connector. Check RED/BLU circuit for a short to ground.
If yes, service suspect wires for a short to ground.
If no, replace radio/cassette deck.
(cont'd)

10..17
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 Radio
Troubleshooting (cont'd)
Test K: Passenger Headset Is Inoperative but Driver Headset Is OK (With Passenger Controller)

1. Disconnect C304 and check for 5 volts at GRN/BLK circuit with radio on.
If yes, go to step 2.
If no, service GRN/BLK circuit for an open.

2. Disconnect C305 and check for 5 volts at GRN/BLK and LT GRN/RED circuits.
If yes, go to step 3.
If no, service GRN/BU( circuit for an open.

3. Check for 5 volts between GRN/BLK and YEL circuits, and between GRN/BLK and RED/BLU circuits.
If yes, go to step 4.
If no, service open in suspect circuit(s).

4. Check continuity of circuits in headset jumper harness.

If OK, go to step 5.
If not OK, replace jumper harness.

5. Reconnect connectors C304 and C305. Substitute a known good passenger headset and
see if system operates.
If yes, replace passenger headset.
If no, replace passenger controller.

Test l: MUTE, TUNE-Up, TUNE-DOWN Search Functions Do Not Operate

1. Locate C21 and check for 5 volts at GRN/BLK circuit with radio on.
If yes, go to step 2.
If no, service GRN/BLK wire for an open.

2. Disconnect radio connector C1 and connect ohmmeter between GRN/BLK circuit and BLU/BLK
circuit. Check for continuity with MUTE button pressed.
If yes, go to step 4.
If no, go to step 3.

3. At C21 , connect ohmmeter between GRN/BLK and BLU/BLK switch pins with MUTE button
pressed and check for continuity.
If yes, service BLU/BLK circuit for an open between radio/cassette deck and C21.
If no, replace left combination switch.

4. At radio connector C1 , connect ohmmeter between GRN/BLK circuit and RED/BLK circuit.
Check for continuity with TUNE-UP button pressed.
If yes, go to step 6.
If no, go to step 5.

5. At C21 , connect ohmmeter between GRN/BLK and RED/BLK circuits. Check for continuity with
TUNE-UP button pressed.
If yes, service BLU/BLK circuit for an open between radio/cassette deck and C21.
If no, replace left combination switch.

6. At radio connector C21 , connect ohmmeter between GRN/BLK and YEURED circuits. Check for
continuity with TUNE-DOWN button pressed.
If yes, replace radio.
If no, go to step 7.

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 7. At C21, connect ohmmeter between GRN/BLK and VEL/RED circuits. Check for continuity with
TUNE-DOWN button pressed.
If yes, service VEL/RED circuit for an open between radio and C21.
If no, replace left combination switch.

Test 1\11: TUNE-UP or TUNE-DOWN Functions Do Not Work From Passenger Controller

1. Disconnect C304 and check for 5 volts at GRN/BLK circuit with ignition in ACC and
radio on.
If yes, go to step 2 (Asp or SE model) or step 3 (Int model).
If no, service GRN/BLK circuit for an open.

2. Disconnect C305 and check for 5 volts at GRN/BLK circuit with ignition in ACC and
radio on.
If yes, go to step 3.
If no, service GRN/BLK circuit for an open.

3. With C304 disconnected, connect ohmmeter between RED/BLK circuit and ground.
Turn radio on. Press left combination switch TUNE-UP button and check for 5 volts.
If yes, go to step 4.
If no, service RED/BLK circuit for an open.

4. Connect ohmmeter between VEL/RED circuit and ground. Press left combination switch
TUNE-DOWN button and check for 5 volts.
If yes, replace passenger controller.
If no, service RED/BLK circuit for an open.

Test N: Auxiliary CD or Tape Player Does Not Operate (Int lIIIodel)

1. Check power and ground at auxiliary component.

If OK, go to step 2.
If not OK, service suspect circuit.

2. Replace auxiliary player with a known good unit and playa tape or CD.
If yes, replace auxiliary player.
If no, go to step 3.

3. Disconnect radio connector C2 and check auxiliary input lines to radio for continuity.
If yes, go to step 4.
If no, service suspect circuits.

4. Check auxiliary input BLU/yEL and BLU/GRN circuits for shorts to ground.
If OK, replace radio.
If not OK, service suspect circuits.

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 Citizen Band Radio: Asp
Circuit Schematic - - - - ,
L~ WITH IGN, CRUISE R,:_LAY ENERGIZED]
r= =I~~E';;gi~ StOp =u

1
@ I Switch
RIGHT
I COMBINATION
ACC FUSE I fP = = =., STARTER/ I SWITCH
LT GRN/ 10A I I FREE PUSH I REVERSE I
BLK

REDIYEL I Ib~=.mJ!!lIlIll<mOI SWITCH JI

LT GRN/BLK "==== ====,-
LT GRN/BLK
5140 It £~ _ . Automatic YEljRED
Level
Hazard Lights Control C57
LT GRNiBLK YEljRED If
See Power
Distribution,
D YEURED Reverse
5198 It System
page 2-0.
YEURED
Radio/Cassette
Deck
Starting System

I + _ +_

,:~r--= G"""T~~---~-~~:o:el-= = """,:

C130*

""~'"Ii~~.~ G:""T _~~~~~-e:'GeTr~~~~",]

* Fader may be
installed here.
See page 10-1
if equipped.
C71

BLU/GRN GRY/BLK RED/GRN BRN/BLK

BLUIGRN S289 ltme RED/GRN

1
a

LEFT
FRONT
SPEAKER
LEFT
FRONT
RED/GRN

TWEETER
(Optional)
RIGHT
FRONT
SPEAKER
1 RIGHT
FRONT
TWEETER
(Optional)

GRY/BLK BRN/BLK
~-=:i _ _:::iIIIIIIffi[~ ~ ~ .
~~~~_lt -=:i-=:i.
5288 S281

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 ANTENNA

r=
I
= == = = = == = = , - , , - = = =,= - = =

Channel Select Input

I
= =., CB
I TRANSCEIVER
I Transmit Up Up/Down ~
I input ' ",
L==rr======== ====l===J
.l.J,-.~---~~--- ---,-,- C306

--:::~_"==_-=,,=',======
WHT IT
(j S283 ORN GRY

WHT

r=~"+-=~ TRANSMIT w+~~---=~ CHANNEL

SWITCH SELECT
FREE SWITCH

WHT ORN GRY C20

GRN

I ---~~- ~~. ?;.,~;~:~

I iF"""'=i-""""""!I TRANSMIT "--~-""""'1"'ll CHANNEl I
SWITCH FREE SElECT I
I ~- -~ SWITCH
I UP DOWN I
I I
I ~~I'- I
b===~~== ===~==~==~====~

See Ground Distribution,

page2-1L
GRN I
~ (3100

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 Citizen Band Radio: Int
Circuit Schematic
HOT AT ALL TIM~~~ E~=~~~,I~~-;~LAY ENERGIZ~
===--===~ =-~~==,
- - , RIGHT
@ ® I
I~~~~ Ir--~-E~i;;;
BOX
Control I COMBINATION
I IF - - B;:;2"'11 STARTER I SWITCH
LT GRNi ,22A,,=_=,____
ACe FUSE BACK UP FUSE
5A J I I FIlEE PUSH 1SWITCH I
LL~~=-~1~TJ ====J
BLK

REDIYEL
YEURED

Hazard Lights
LT GRN/BLK
REDIYEL
S101 €I) . . . . , - - . Trunk Light
REDIYEL flI
YEURED
I C57

M See Power YEURED

Starting

"G::O,:j ~:;. ~~;~I "~~:~1~~-. ~:~b2~O" ~::lE;roJI~iIIIIIIE::;;U~.

System

Radio/Clock

LT GRN/BLKI- - - ~- - - - REDIYEr - - - ,,,,. -" .. - - - :u::r C306

r=== ====-==--
I Ignition Input Memory Input
-==~-- =_=l=====oI
Start Input.
CB
TRANSCEIVER
(CB Muted DUring I Solid-state:
I Start Cycle) Do not check
I Speaker Mic Mute Mode Ground CB Headset Mic I resistance.
I
B===_=~
AF out input Ground out in AF on AF out ground I
~

'r---=-======------==---==-=------,
" r~"'"[~''''I-''"I "1 ~1 f~'~I Sh~~~~::7
.
RADIO/
I I CLOCK
I .., + - + I Soild-state:
Do not check
14r~~-~-..,T~~~~~T~~~~~l~l--~~~---_.J ,e,i~aoM.

:::~~ r-.:~:~ :~ r- -~:~~T -_.~:,~:~1Cl~'

... _.______ _ .., , _ _ _ _ _ C55
* Fader may be installed
here. See page 10-12
ifequipped .

GRY/BLK BLU/GRN BRN/BLK RED/GRN

LEFT RIGHT
FRONT FRONT
SPEAKER SPEAKER

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 ANTENNA

r=====================-,CEI
I TRANSCEIVER
Channel Select Inputs I
Transmit I
UP UP/DOWN I
~==mi

GRY

WHT

S284

C20
~~=-~-"9I CB
_~.......J~~~~ TRANSMIT --+--,*,",,~ CHANNEL SWITCH
FREE (DRiVER'S)
SWiTCH SELECT
WHT ORN GRY
SWITCH
FREE UP DOWN

======'ij CB
I I TRAN&
C304 PASSENGER'S
I I CEiVER
CONTROLLER
C20 I Case Ground I
r=== b==t===
I C25
I iI""""'-"1""'~-'" TRANS-
I
I
MIT
SWiTCH
_""*+==""i"="91 CHANNEl

UP
FREE
SELECT
SWITCH
DOWN
GRN
I. C26

I~=~~~......! GRN r==1==1 RADiO/

I I Case Ground I CLOCK
I I
l=~~~=J
17 C1
GRN

~--------~
8153
GRN
I See Ground
I Distribution,
page 2-18.
GRN I
~ Gl00

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 Citizen Band Radio: SE
Circuit Schematic

@
ACC FUSE
==);=.,
G~T WITH IGN. CRUISE REc..~ ENERGIZED

ir
I lP = =
Engine StOp'i COMBINATION
Switch
RIGHT
STARTER/ I SWITCH
I

LT GRN/ "lOA i I FREE PUSH I REVERSE I

BLK
I ilSWITCH
11b== =..IiI Ji
RED/YEL
LT GRN/BLK '-=== =====
LT GRN/BLK
ilE,_~~ ~~~~~atic
YEL/RED
5140

Turn Signals
LT GRNiBLK
Control

RED/YEL R1
1M
RED/YEL
8101 @j) k8iiiiiiiii"'.",. Trunk Light

RED/YEL See Power

YEL/RED i C57

"".::lIllliYiEL/:;;RmEiD~~ Reverse
8102 ilr.::Jiiiiiiiiii::lliiii~ Distribution, 8198 @j) &: System
LT GRN! page 2-0.
~YEL/RED
See Power
BLK
8103 illJE';;Ji~ Distribution, Radio/Cassette
page 2-0. Deck
YEL/RED
Starting System

LT GRN/BLK YEL/RED
RED/YEL

- ,= = ~ -=~.=.=.=
---------
== = . = . = . =-------------
' = '=" . =..= ..= ..
«= "",=..======.=.=~~.~ ~ ..==.=, CB
I Ignition Input Battery Input Start Input (CB I TRANSCEIVER
I (for memory) off dUring start or 0
I Speaker reverse) u
I AF Mic Mute Mode Ground CB Headset Mic i
Out Input Ground Out In AF On AF Out Ground I

L,:[ ,m~c G"w,~I~I 00' ,~, ~ ~:"I --m

=========~=='4IRADIO/
,,;g=] ~7 -

r-----1--------- -1
1'"================= ==
i CASSETTE
I + - + _ I ~~i~~state:
L==~~=========---====~=~~=~~~~=--=-~~n~check
4 1 - - - - C1 resistance.

BLU/GRN GRY/BLK RED/GRN BRN/BLK

C130*

"WG" r---G:'"~r------- '000" ._-- 00",,1 * Fader may be

installed here.
See page 10-1
if equipped.

BLU/GRNl'~ - - - G~Y/BLK - - - - - - - RED/GR: 1-- - - BRN/BLK C71

,: :,i~ I
BLU/GRN RED/GRN

LEF:':~:':r~=--l
FRONT FRONT
RIGHT
FRONT
TWEETER SPEAKER TWEETER
(Optional) (Optional)

RN!BLK

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 T ~TENNA

r -,*= -:= =- -=- -=:. _ . -=- =. = ' == ,=,. = - -- -- = --=-». --=- -- ~ -=..., CB
I Channel Select Input I TRANSCEIVER
I Transmit Up Up/Down I
I Input r A ITT%J Lm:1 ...

L===~~_~===========_==J
WHT r--------r---~RY C4

rr======'=~=="=""==='=" ===== @I S283

WHT
@I S224

~
----iIIIIIII!l---@IJl ORN
~
GRY
~C20
S284

rr=-=-+=====:J:==='-"':~--"""""II CB
SWITCH
-=~=- TRANSMIT
1IF't=======i1=i CHANNEL
FREE SELECT
(DRIVER)
SWITCH
FREE TALK SWITCH
-1 UP DOWN

WHT ORN GRY

r=======l ~:ANS-
C23
C304
PASSENGER'S
I CEIVER
CONTROLLER
I Case Ground I
r=' ========'==='11 I.==='t=-=~
C25
I
I
I
I
GRN
1
~===l:::'='I!
TRANS- CHANNEL
I l1li IT FREE SELECT I RADIO/
I SWITCH - - "I SWITCH I I Case Ground I CASSETTE
I UP DOWN I I I DECK
I 'w"-,----'_~"_ I l==~r~~==J
t=======~============J
17 C1
GRN

GRN

1
r==1===-=.T
I ~-
1I C192

IL._=_ =_ .~. _=_ ~ .-,.~.=. I

0=_ . em>

l
I See Ground Distribution,
page 2-12.
GRN I
~ G100

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 Citizen Band Radio
How the Circuit Works--
The CB transceiver receives battery voltage from the Note: Ifthe radio does not operate, perform the radio
ACC fuse with the ignition switch in ON, ACC, or diagnostic tests described in the radio section
PARK. The transceiver gets battery voltage from the before diagnosing any CB symptoms.
Back Up fuse at all times. When the starter/reverse or
starter motor is engaged, battery voltage is applied
to the CB transceiver through the VEL/RED circuit to
mute the audio. The CB sends and receives audio
information through the radio through a series of
control lines that run between the radio/clock and
CB transceiver. These lines control radio and CB
muting, audio input and output, and other functions.

Troubleshooting - - - - - - - - - - - -
>''''''~''''''

SYMPTOM DIAGNOSIS
=-.=

@ CB radio does not operate and display is €I Open power or ground circu it; do test A.
blank.
-
....•
@l
........ _. __. __
CB transceiver loses memory.
._-._----_.. _----""~- __-_ _ - - - - - - - - - -
..
0 Open battery circuit to CB tra nsceiver.
....
o CB transceiver does not turn off while 0 Open starter input circuit to C B transceiver.
starter/reverse motor is cranking.
.~" .....
o Faulty antenna, coaxial ca ble, open or
o CB transceiver appears to come on but
shorted control circuit betwe en CB trans-
does not transmit or receive.
ceiver and radio; faulty CB t ransceiver or
..... __ _-_ _-_ _ _--_ _._-- ~-_
radio; do test C .
---_ _.....
.._ . _-_ .....
CB transceiver receives and transmits but 0 Open or shorted control cir cuit between
transceiver and radio; faulty CB transceiv-
does not _
operate
............._ _
_
properly. __
er, or radio; do test C.
._.c........._. _.c......... _
o Open or shorted control cir cuit between
@ CB transceiver transmits but does not transceiver and radio; faulty CB transceiv-
receive. er, or radio; do test C.
~ ..~ ..w

o Faulty transmitter switch circ uit or switch,

@ CB transceiver receives but does not
open control circuit between CB and radio;
transmit. do test B.
.-
@ CB transceiver channel select does not Open channel select input c ircuit, switch,
operate from driver switch but the or faulty CB transceiver; do test E.

.... ~"._--~
transmit function operates.
_.-"."_ __ "-,, _.,,.._-- _,....._._ _-" __ _-_ __ .., ,--............_ . _ - -
o Open circuit between passen ger controller
CB transceiver does not transmit and/or
and CB transceiver or fau Ity passenger
channel select operates from driver
controller; do test D.
switch but not from passenger switch.

' _ _ _" _ _ . = ~ - ' A ~ ~ U ~ "

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 Troubleshooting --~~
Test A: CB Radio Does Not Operate and Display Is Blank

1. Disconnect connector C306 (Asp or Int model) or C4 (SE model). Put the ignition switch in ACC.
Check for battery voltage at LT GRN/BLK circuit.
If yes, go to step 2.
If no, service LT GRN/BLK wire for an open.

2. Check for voltage at RED/YEL circuit.

If yes, go to step 3.
If no, service RED/YEL circuit.

3. Disconnect CB connector C25 and check for a good ground at GRN circuit.
If yes, replace CB transceiver.
If no, service GRN circuit for an open.

Test B: CB Receives but Does Not Transmit

1. Does the channel select function operate from the driver's channel select switch?
If yes, go to step 3.
If no, go to step 2.

2. Disconnect C20 and C23 (SE model) and check for a ground at GRN circuit.
If yes, go to step 3.
If no, service GRN circuit for an open.

3. With C20 and C23 (SE model) disconnected, connect ohmmeter across WHT and GRN circuits
at switch side of connector(s}. Check for continuity with transmit switch held in TALK.
If yes, go to step 4.
If no, replace driver's CB switch.

4. Reconnect connector C20 and C23 (SE model) and disconnect C306 (Asp or Int model).
Check continuity to ground at WHT circuit with driver's transmit switch pressed.
If yes, go to test C.
If no, service WHT circuit for an open between driver's CB switch and CB transceiver.

Test C: CB Transceiver Input/Output Test

1. Disconnect C4 (CB transceiver) and C17 (radio connector). Check continuity between the
9 circuits running between the CB transceiver and radio/cassette deck (Asp or SE model) or
radio/clock (Int model). Also, check that connector terminals are not loose or dirty.
If OK, go to step 2.
If not OK, service suspect circuits for an open.

2. With connectors C4 and C17 still disconnected, check that these 9 circuits are not shorted to
ground.
If OK, go to step 3.
If not OK, service suspect circuits for a short to ground.

3. Was the CB able to receive or transmit?

If yes, go to step 5.
If no, go to step 4.

(cont'd)

10",27
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 Citizen Band Radio
- Troubleshooting (cont'd)
4. Temporarily substitute a known good CB antenna and coaxial cable. Reconnect disconnected
connectors. Does the CB now operate normally?
If yes, replace suspect antenna or coaxial cable.
If no, go to step 5.

5. Temporarily substitute a known good CB transceiver. Reconnect disconnected connectors.

Does the CB now operate normally?
If yes, replace CB transceiver.
If no, replace radio/cassette deck or radio/clock.

Test D: CB Does Not Transmit and/or Channel Select Does Not Operate From Passenger Switch

1. Disconnect C304. Connect an ohmmeter to the harness side of C304 at the WHT circuit.
Check continuity to ground while holding the driver's transmit switch in TALK.
If yes, go to step 2.
If no, service WHT circuit for an open.

2. Connect an ohmmeter to the harness side of C304 at the ORN circuit. Check continuity to ground
while holding the driver's channel select switch toward UP.
If yes, go to step 2.
If no, service ORN circuit for an open.

3. Connect an ohmmeter to the harness side of C304 at the GRY circuit. Check continuity to ground
while holding the driver's channel select switch toward UP.
If yes, replace passenger's controller.
If no, service GRY circuit for an open.

Test E: eB Channel Select Does Not Operate but Transmit Function Operates

1. Disconnect C306 (Asp or Int model) or C4 (SE model). Connect an ohmmeter to switch side of
C306 or C4 ORN circuit and check continuity to ground while holding the driver's channel select
switch toward UP.
If yes, go to step 2.
If no, check ORN circuit for an open between CB transceiver and driver's channel select switch.
If circuit is OK, replace driver's CB switch.

2. Connect an ohmmeter to switch side of C306 or C4 GRY circuit and check continuity to ground
while holding the driver's channel select switch toward DOWN.
If yes, replace CB transceiver.
If no, check GRY circuit for an open between CB trasnsceiver and driver's channel select switch.
If circuit is OK, replace driver's CB switch.

10..28
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 Component location Index

(Refer to Section 12 for photographs.) Cruise Valve Relay 9

Behind left fairing inner cover,
Component Photo No.
near front of fuel tank
Air Pressure Sensor . . . . . . . . . . . . . . . . . . . . . .. 32
Engine Control Module (ECM) (26-YEl) ..... 24
Behind right saddlebag
Behind right fairing inner cover
Air Pump Assembly 28 Engine Coolant Temperature
Behind left saddlebag
(ECT) Gauge Sender 62
Alternator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3 Top left side of engine
Left rear of engine Engine Coolant Temperature
Auxiliary Input Connector 55 (ECT) Sensor (2-GRN) 61
Behind left fairing pocket Behind left fairing cover,
on thermostat housing
Bank Angle Sensor (Asp, SE) 32
Below right rear of seat, on frame rail Fader (Asp)
On top center of handlebar cover
Bank Angle Sensor (Int) 22
Below right rear of seat, on frame rail Fader (SE) 49
On left side of handlebar
Batlery 30
Below right side cover Front Brake light Switch . . . . . . . . . . . . . . . . . .. 48
On right handlebar, in front of brake switch
Carburetor Air Jet (CAJ)
Solenoid Valve #2 (Asp, SE) 23 Front Brake light/Cruise Cancel Switch . . . .. 48
Behind right fairing pocket On right handlebar, part of front brake switch

Carburetor Air Jet (CAJ) Fuel level Sender (Asp, SE) 7

Solenoid Valve #2 (Int) 66 Behind left fairing inner cover, on fuel tank
Behind right fairing pocket Fuel level Sender (Int) 51
Carburetor Air Jet (CAJ) Behind left fairing inner cover, on fuel tank
Solenoid Valve #3 (Asp, SE) 23 Fuel Pump (1-GRN) . . . . . . . . . . . . . . . . . . . . . . .. 44
Behind right fairing pocket Below seat, in fuel tank
Carburetor Air Jet (CAJ) Fuel Reserve Sender (1-WHT) . . . . . . . . . . . . .. 44
Solenoid Valve #3 (Int) ". 66 Below seat, in fuel tank
Behind right fairing pocket
Fuse/Relay Box 28
CB Transceiver " . . . . . . . . . . . . .. 65 Behind left rear side cover
Below left fairing pocket
Gear Position Switch
Clutch Switch 49 On right front of engine, above oil filter
On left handlebar
Hazard Flasher Relay (3 BlK) (Asp, SE)
m
37
Clutch/Cruise Cancel Switch 49 Below rear of trunk
On left handlebar
Hazard Flasher Relay (3-BlK) (Int) 47
Cruise Control Actuator. . . . . . . . . . . . . . . . . . . .. () Below rear of trunk
Behind left fairing inner cover
Ignition Coils 45
Cruise Control Unit (20~BlK) 36 Below reserve coolant tank
Below center rear of trunk
Ignition Pulse Generators
Cruise Control Valve Unit ". 5 Behind timing belt covers
Behind left fairing inner cover,
on left side of fuel tank
- - - - - - - _•. ~--

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 Ignition Switch Main Fuse B (55A) :2
Center of instrument panel Behind right side cover, forward of battery
In~Line Capacitor A " 4 Oil Pressure Switch 11
On rear of alternator On lower right front of engine
in~Line Capacitor B 3 Passenger Controller
Left rear of engine, on alternator On right side of trunk
In-line Capacitor D (2~RED) Power Control Relay #1 (4~WHT) 30
(Int, Asp)(with CB) 43 Behind right side cover, rear of battery
Below seat, on top of fuel tank
Power Control Relay #2 (4-WHT) 30
In-line Capacitor D (SE) 61 Behind right side cover, rear of battery
Below seat, on top of fuel tank
Pulse Secondary Air Injection
In~line Diode A 56 (PAIR) Solenoid Valve 8
In harness, right side of air cleaner housing Behind left fairing inner cover,
near front of fuel tank
in-line Diode B (2-WHT) (Asp, SE) 31
Below left side of trunk Radiator Fan Temperature Switch " 14
On underside of left radiator,
In-line Diode C 56
next to cooling fan
In harness, right side of air cleaner housing
Radio Noise Filter
in-line Fuse A (5A) " .. 30
Below rear seat
Behind right side cover
Rear Brake Cruise Cancel Switch 68
In-line Fuse B (5A) " " 30
Behind right front side cover,
Behind right side cover
above heat shield
Intake Air Temperature (IAT) Sensor . . . . . . .. 16
Rear Brake light Switch (Asp, SE) " 26
Right front of air cleaner case cover
Behind right front side cover
Inverter 33
On rear of right saddlebag, behind cover
Rear Brake light Switch (Int) '" 53
Behind right front side cover
left Combination Switch 60
Rear Suspension Solenoid Valve 32
On top of left handlebar
Behind right saddlebag
left Cornering light Relay
Relief Solenoid Valve 31
(4-BlU) (Asp, Int) 15
Behind right saddlebag
Behind left side of fairing front cover
Reverse Control Unit (14-WHT) " 36
Left Cornering Light Relay (4~BlU) (SE) . . . .. 19
Below rear of trunk
Behind right side of fairing lower cover
Reverse Diode Assembly 32
left Horn 15
Below right side trunk,
Behind left fairing front cover
behind bank angle sensor
left Noise Filb~r
Reverse lever Switch 1
On left fan shroud
Behind left fairing inner cover,
left Radiator Fan Motor . . . . . . . . . . . . . . . . . . .. 58 near left side of fuel tank
Behind left radiator
Reverse Resistors. . . . . . . . . . . . . . . . . . . . . . . .. 29
Main Fuse A (30A) " 2 Behind right side cover, under battery box
Behind right side cover, forward of battery
Reverse Switch 21
Right side of engine, near dipstick (cont'd)

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 Component Location Index

(Refer to Section 12 for photographs.) Tum Signal Cancel Control Unit

Inside steering head
C t
-.i>m.ROn~!L Photo No.
Turn Signal Flasher Relay
Reverse Switch Relay (4~BlK) ." 41
(:3~WHT) (Asp, SE) " " .. .. 37
Below rear of seat
Below rear of trunk
Right Combination Switch
On top of right handlebar Tum Signal flasher Relay
(3-WHT) (Int) 47
Right Cornering light Relay Below rear of trunk
(4~BlU) (Asp, Int) 57
Behind right side of fairing front cover C6 (3-BlK) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 46
Behind instrument panel
Right Cornering light Relay (4~WHT) (SE) ... 19
Behind right side of fairing lower cover C10 (22-BlU) (SE) . . .. .. .. . .. . .. . . .. . . . .. .. 39
Below left rear of seat
Right Horn , 18
Behind right fairing front cover C10 (22-WHT) (Asp) 39
Below left rear of seat
Right Noise Filter
On right fan shroud C10 (22-VEl) (Int) 50
Below left rear of seat
Right Radiator Fan Motor 59
Behind right radiator C11 (3-GRN) (Asp, SE) 38
Below rear of seat
Side Stand Switch . . . . . . . . . . . . . . . . . . . . . . . . .. :3
Left side, on side stand C11 (3-GRN) (Int) 22
Below rear of seat
Speed limiter Fuse (65A) 41
Below rear of seat C12 (6-RED) (Asp, SE) . .. . . .. .. .. . . . .. . .... 38
Below left rear corner of seat
Speed limiter Relay (4-WHT) 30
Behind right saddlebag, C12 (6-RED) (Int) 50
ahead of shock absorber Below left rear corner of seat

Spoiler Brake/Taillight Control C16 (10-WHT) " 46

Module (:3-WHT) . . . . . . . . . . . . . . . . . . . . . . . . . . .. 1 Behind instrument panel
Behind left saddlebag C20 (4-BRN) 12
Starter Motor (Int) Behind left front side of fairing
On lower right rear of engine C21 (4-BlK) "..................... 12
Starter Relay A (4-RED) " . . . . . . . .. 2 Behind left front side of fairing
Behind right side cover, forward of battery C22 (6-RED) 21
Starter Relay B (2-WHT) 26 Right side of fairing,
behind marker light
Behind right side cover, on lower frame rail

Starter Relay Regulator , 1 C23 (2-BlK) "........... 12

Behind left saddlebag Behind left side of fairing,
below connector bracket
Starter/Reverse Motor (Asp, SE)
C24 (4-WHT)
On lower right rear of engine
Behind headlight assembly
Throttle Cancel Switch , 9
C25 (1-WHT) (SE) 65
Near left side of air cleaner box, on frame rail
Below left fairing pocket
Trunk light Switch
Inside trunk, near left hinge

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 (;26 (1-WHT) (SIS) CS9 (6-SlK) 21
Above radio/cassette player connectors, Right side of fairing, behind marker light
taped in harness
C60 (2-BLU) 21
(;28 (3-GRN) (Asp, SE) 5 Behind right front side of fairing
Behind left fairing inner cover,
near left side of fuel tank C63 (4-WHT) 21
Right side of fairing, behind marker light
C28 (3-GRN) (Int) 51
Behind left fairing inner cover, C66 (14-WHT) (int) 63
near left side of fuel tank Behind instrument panel

C29 (2-BLU) (Asp, SE) 25 C66 (20-WHT) (Asp, SE) 46

On bracket, on right side of fuel tank Behind instrument panel

(;32 (22-RED) 39 C67 (3~WHT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 20

Behind right saddlebag Behind right fairing pocket

C33 (22-BUq 39 C6S (2~GRN) (Asp, SE) 20

Below right rear of seat Behind right fairing pocket

C35 (4-IRED) 1 C6B (2~GRN) (lilt) 54

Behind left saddlebag Behind right fairing pocket

C43 (2-WHT) (Asp, SE) 5 C69 (2-WHT) .. 18

Behind left fairing inner cover, Behind right front side of fairing
near left side of fuel tank
C71 (16-WHT) (Asp) 10
(;43 (2-WtiT) (Int) 51 Behind left fairing pocket
Behind left fairing inner cover,
C71 (16-WHT) (Int)
near left side of fuel tank
Behind left fairing pocket
C44 (2-WHT) 4
C71 (16-WHT) (SE) 69
On rear of alternator
Behind left fairing pocket
C54 (4-WHT) (Asp, SE) 25
Behind right fairing inner cover, near ECM
cn (13-BLK) (Asp, SE) . . . .. .. .. .. . .. . . .... 23
Behind right fairing pocket
C54 (4-WHT) (Int) 56
Behind right fairing inner cover,
cn (16-WHT) (Int) 66
Behind right fairing pocket
near ECM
C73 (14-BLK) (Asp) 10
C55 (13-WHT) (Asp, SE) 23
Behind left fairing pocket
Behind right fairing pocket

C55 (16-GRV) (lilt) 52

en (14-BLK) (lilt)
Behind left fairing pocket
Behind left fairing pocket

C56 (2-SRN) 34
cn (14-SlK) (SE) 69
Behind left fairing pocket
Below left rear of trunk
C15 (€i-RED) 34
C57 (9-RED) 21 Below left rear of trunk
Right side of fairing, bet1ind marker light
C76 (G-RED) 34
C58 (a-BLK) 12 Below right rear of trunk
Behind left front side of fairing
cn (3-WHT) . . . . . . . . . . . . . .. 3S
Below trunk
(ccmt'd)

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 Component Location Index

(Refer to Section 12 for photographs.) C9B (3-BlK) 13

Left front of fairing,
Component Photo No.
behind turn signal light
C7S (3-WHT)
C99 (5-WHT)
Below trunk, near right saddlebag
Inside steering head
light assembly
C103 (6-WHT)
C81 (2-BlK) (Asp, SE) .. , 25
Right rear of fairing, behind air pressure
On bracket, near right side of fuel tank
control switch assembly
ca1 (2-BLU) (Ini) 56
C104 (3-RED) 38
Behind right inner cover,
Below trunk
on right side of fuel tank
C105 (3-BLK) 38
C82 (2·{;;RN) 34
Below trunk
Below right rear of trunk
CW6 (2-WHT) 38
ca4 (3-WHT) 38
Below trunk
Below trunk

C85 (3·W~fn C107 (J-WHT) 46

Below trunk, Behind instrument panel
near left rear light assembly C'103 (4-WHT) (Int) 63
Behind instrument panel
CB6 (2-GRN) 34
Below left rear of trunk C103 (6"WHT) (Asp, SE) 46
Behind instrument panel
C89 (2-RED) 40
Below left rear side of seat C109 (2-BLK) 58
On left fan shroud
C90 ({i-BRN) 12
Behind left front side of fairing C110 (2-BlK) 59
On right fan shroud
C91 (14-BlK) ..... '. . . . . . . . . . . . . . . . . . . . . . .. 46
Behind instrument panel C112 (2-BlK) (Asp, SE) .. .. . .. . . . . .. .. .. . ... 5
Behind fairing inner cover,
C92 (3-RED) 5
on left side of fuel tank
Behind left fairing inner cover,
near left side of fuel tank C112 (2 BlK) (Int)
m
51
Behind fairing inner cover
C93 (6-GRN) , '12
Behind left front side of fairing C115 (1-ClR) 14
C94 (9-BLK) 21 Below left radiator, near fan
Right side of fairing, temperature switch
behind marker light C119 (2-RED) (Asp, SE) .. .. .. .. . .. .. . . . . ... :20
Behind right fairing pocket
C95 (2-BlK) 15
Bellind left side of front fairing C119 (2 RED) (Int) .. .. .. .. .. . .. .. . . . .. .. ... 54
m

Behind right fairing pocket

C97 (2-GRN) (Asp) 10
Behind left fairing pocket C120 (2-GRN) (Asp, SE) 20
Behind right fairing pocket
C97 (2-GRN) (!nt) " 55
Behind left fairing pocket C120 (2-GRI\I) (Ini) 54
Behind right fairing pocket
C97 (2-GRN) (SE) 59
Behind left fairing pocket

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 C127 (1 "'GRN) (SE) 67 C 184 (i-BlK ) (without CB) 42
Below seat on fuel pump housing Below seat, on top of fuel tank
C121 (i-GRN) (Without CB) 42 CHI5 (i-WHT) 43
Below seat on fuel pump housing Below seat, on top of fuel tank
Ci30 (4-WHT) Unt) 52 C186 (1-WHT) 43
Below left fairing pocket Below seat, on top of fuel tank
C130 (4-BlK) (SE) 12 Ci88 (3-WHT)
Behind left front side of fairing, on bracket Rear of left saddlebag, behind cover
C130 (Asp) " 10 Ci89 (3-WHT) 33
Behind left front side of fairing, Rear of right saddlebag, behind cover
on bracket
C190 (1-BLK) 33
C131 (4-BlK) 5 Rear of right saddlebag, behind cover
Behind fairing inner cover,
on left side of fuel tank Ci91 (14-0RN)
Taped to harness, near right side of fuel tank
C132 (2-BlU) 5
Behind fairing inner cover, C192 (14-0RN)
on left side of fuel tank Behind fairing inner cover,
on left side of fuel tank
C133 (2-RED) 25
On bracket, near right side of fuel tank C193 (i-BLK) 33
Rear of right saddlebag, behind cover
C136 (3-WHT) 55
Below left fairing pocket C194 (1-BLK) 33
Rear of right saddlebag, behind cover
C131 (G-RED) 55
Below left fairing pocket C195 (1-BLK) 33
Rear of right saddlebag, behind cover
C138 (G-BRN) 21
Right side of fairing, behind marker light C300 (4-WHT) 10
Behind left fairing inner cover,
Ci47 (i-WHT) (SE) G7 near air cleaner housing
Below seat, on top of fuel tank
C301 (4-WHT) (with CB) 10
C147 (1-WHT) (without CB) 42 Behind left fairing inner cover,
Below seat, on top of fuel tank near air cleaner housing
cns (4-WHT) 67 C301 (4-WHT) (without CB) 11
Below seat, on top of fuel tank Near left side of air cleaner housing
C181 (4-WHT) 12 C302 (4-BlK) 40
Behind left front side of fairing, Below left rear side of seat
on bracket
C303 (4-BLK) " " 11
C182 (4-WHT) " " 36 Near left side of air cleaner housing
Below rear seat
C304 (G-BRN) " " 40
C183 (1-GRN) 43 Below left rear side of seat
Below seat, on top of fuel tank
C305 (6 RED)
m

C184 (i-BLK) (SE) 67 Below left rear corner of seat

Below seat, on top of fuel tank

(cont'd)

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 Component Location Index

(Refer to Section 12 for photographs.) G104 (Asp, 5E) 27

On right side of engine
c.Q!rIponent Photo No.
G104 (Int) 53
C306 (6-BRN) (Asp) "...................... 10
On right side of engine
In rear of left side fairing pocket
C306 (6-BRN) (Int) 52 0105 50
In rear of left side fairing pocket Below center of seat

C311 (6-RED) (Asp) 10

Behind left fairing pocket

C311 (6-RED) (5E) 69

Behind left fairing pocket

C312 (6-WHT) 39
Underneath right side of seat,
in front of trunk support bracket

C315 (2-YEl) (Asp, 5E) 8

Behind left fairing inner cover,
near front of fuel tank

C315 (2-YEL) (Int) 51

Behind left fairing inner cover,
near front of fuel tank

C316 (3-BRN) 29
Behind right side cover, under battery box

C330 (2-BLK) 39
Below left side of trunk

C331 (2-BlK) 35
In left underside of trunk lid

C333 (1-CLR) 50
Below center of seat
C334 (5-BLK)
On passenger helmet audio cord
C335 (5-BLK)
On driver helmet audio cord

G100 27
On frame, above dipstick

G102 14
On left radiator, near radiator fan
temperature switch

G103
On engine, near coolant temperature sensor

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 11 . . 7
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 Component Location Photographs
1. left Side of Motorcycle (Saddlebag Removed) 4. Rear of Alternator (Removed from

C44
(2-WHT)

2. Right Side, Below Battery 5. left Side, Next to Fuel Tank

(Rear Side Cover and Battery Box Removed) (Inner Cover Removed)

3. left Rear of Engine (Front Side Cover Removed) 6. Below Reverse lever (Inner Cover Removed)

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 1. left Side of E,ngine (Inner Cover Removed) 10. left Rear of Fairing (Fairing Removed)

8. Behind left Side of Fairing

(Fairing inner Cover Removed) 11. left Rear of Fairing (Inner Cover Removed)

9. Behind left Side of Fairing

(Fairing Inner Cover Removed) 12. Behind left Side of Fairing 1i=::>lirii"lt'O Removed)

C130 C181 C21 C58 C20

(6-BLK) (4-WHT) (4-SLK) (S-SLK) (4-BRN)

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 Component Location Photographs
13. Front of Motorcycle, Behind Position light 16. Right Air Cleaner Housing Area

17. lower Right Front of Engine

14. Below left Radiator (Front Cover Removed) (Under Cover Removed)

15. Behind left Fairing Front Cover 18. Right Front (Under Cover Removed)

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 19. Right Side of Fairing
(lower Fairing Cover Removed) 22. Below Rear of Seat

20. Below Right Fairing Pocket (Fairing Removed) 23. Rear of Right Fairing Pocket

21. Right Side of Fairing (Fairing Removed) 24. Right Side (Inner Cover Removed)

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 Component Location Photographs
25. Right Side (Inner Cover Removed) 28. left Side (left Side Cover Removed)

FUSEIRELAY
BOX

26. Right Rear of Engine 29. Right Side, Beiow Battery

(Front Side Cover Removed) (Rear Side Cover and Battery Box Removed)

27. Right Rear of Engine

(Front Side Cover Removed) 30. Right Side (Rear Side Cover Removed)

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 34. Below Rear of Trunk
31. Right Side (Saddlebag Removed) (Trunk lower Cover Removed)

32. Right Side (Saddlebag Removed) 35. Inside Trunk, on left Side of lid

33. lower Rear of Right Saddlebag

(Saddlebag lower Cover Removed) 36. Top Rear, Under Trunk (Trunk Removed)

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 Component Location Photographs
37. Top Rear, Under Trunk (Trunk Removed) 40. Under Rear of Seat (Seat Removed)

38. Top Rear, Under Trunk (Trunk Removed) 41. Under Front of Seat (Seat Removed)

39. Under Seat (Trunk Removed) 42. Top of Fuel Tank (Seat Removed)
,~~~~-

12=6
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 43. Top of Fuel Tank (Seat Removed) 46. Rear of Instrument Panel
(With CB Radio) (Removed from Fairing)

C66
(20-WHT)

C91
(14-BLK)

44. Fuel Pump Assembly

(Removed from Fuel 47. Below Trunk Assembly

FUEL
PUMP
(1-GRN)

45. Top of Engine (Top Compartment and Air Cleaner

Housing Removed) 48. Right Side of Handlebar
-'-~,~""~-~-~~'"""""-
~~~~~~~-~~=~

C320 (1-WHT)
C321 (1-WHT)
FRONT BRAKE
LIGHT SWITCH

FRONT BRAKE
LIGHT/CRUISE
CANCEL SWITCH
C318 (1-WHT)
C319 (1-WHT)

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 Component Location Photographs
49. Left Side of Handlebar 52. Below left Fairing Pocket

CLUTCH/CRUISE
CANCEL SWITCH

50. Below Rear of Seat 53. Behind Front Right Side Cover

51. Left Side of Fuel Tank 54. Inside Right Fairing Pocket

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 55. Below left Fairing Pocket 58. On left Fan Shroud

56. Right Side (Inner Cover Removed) 59. On Right Fan Shroud

57. Right Front (Fairing Lower Cover Removed)

LEFT
COMBINATION
SWITCH

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 Component location Photographs
61. Top Right Front of Engine 64. Top Right Handlebar

ENGINE
COOLANT
TEMPERATURE
(Eel)
SENSOR
(2 GRN)
o

62. Top left Front of Engine 65. Below Left: Fairing Pocket

63. Rear of Instrument Cluster (lnt) 66. Below Right Fairing Pocket

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 67. Below Seat, on Top of Fuel Tank

68. Behind Right Front Side Cover

69. Below left Fairing Pocket

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 Component Index

Acc Fuse 10A Int........................... 2-18,10-23

Asp and SE 2-0,5-2,5-4,7-6,9-7, CB Switch Illumination 9-5
10-0,10-20,10-24 CB Transceiver
Int. . . . . . . . . . .. 2-6,5-4,9-9, 10-6, 10-22 Asp and SE 2-0, 5-2, 10-20, 10-21,
Acc Terminal Fuse 5A 10-24,10-25
Asp and SE 2-0 Int 10-22, 10-23
Int 2-6 Center Light Assembly
Accessory Terminal Asp and SE 2-4,9-12
Asp and SE . . . . . . . . . . . . . . . . . . ... 2--0,2-12 Int. . . . .. .. . . . . . .. .. . . . . . . . . . . .. 2-8,9-14
Int. . . . . . . . . . . . . .. . . . . . . . . .. . . .. 2-6,2-17 Channel Select Switch
Air Pressure Control Asp and SE 10-21,10-25
Switch Assembly " 2-0,2-4,5-4,5-5 Int 10-23
Air Pressure Sensor 5-4 Clutch Switch
Air Pump Assembly................ 2-14,5-5 Asp and SE 3-15
Air Pump Fuse 10A 2--1,5-4 Int. . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-17
Air Pump Relay 2-0,2-1,5-4 Clutch/Cruise Cancel Switch 4---2
Alternator Cruise Control Actuator 4-3
Asp and SE . . . . . . . . . . . . . . . . . . . .. 2-0, 3-26 Cruise Control Switch 4-2
Int 2-6, 3-26 Cruise Control Switch
Antenna Illumination '" .. . . .. 2-11,4-2,9-5
Asp and SE 10-3,10-21,10-25 Cruise Control Unit 2-11,4-0,4-1,
Int........................... 10-9,10-23 4-2,4-3,7-6
Auxiliary Input Connector . . . . . . . . . . . . . . .. 10-7 Cruise Control Valve Unit 2--12, 4-3
"Cruise On" Indicator 4-1,7-1
Back Up Fuse SA Cruise On Switch 4-2
Asp and SE 2-0,5-2,9-18,10-0, "Cruise Set" Indicator 4-1,7-1
10-20,10-24 Cruise Valve Relay 4-2
Int 2-6, 9-18, 10-6, 10-22
Bank Angle Sensor Dimmer Switch
Asp and SE . . .. 2-3, 2-11, 3-14, 3-26, 4-1 Asp and SE . . . . . . . . . . . . . . . . . . . . . . . . . . .. 8-0
Int 2-9,2-19,3-16,3-26 Int. . . . . . . . . . . . . . . . . . .. . . . . . . . . . .. .. . .. 8-2
Battery Driver's Headset. . . . . . . . . . .. 10-3, 10-7, 10--8
Asp and SE 2-0,2-10,3-15,3-26,
3-30,3-32 Engine Control Module (ECM)
Int 2-6, 2-16, 3-17, 3-26 Asp and SE 2-11,3-0,3-1,3-2,4-0,
Brake LightfTaillight (Left Saddlebag) 7-4,7-7
Asp and SE 2-4,2-13,9-12,9-16 Int 2-17,3-4,3-5,3-6,7-8
Int _.... 2-8,2-19,9-14,9-17 Engine Coolant Temperature (ECT) Gauge
Brake LightfTaillight (Right Saddlebag) Asp and SE 2-10,7-4
Asp and SE 2-4,2-13,9-13,9-16 Int. . . . . . . . . . . . . . . .. . .. . . . . . . . . . 2-16,7-8
Int................. 2-8,2-19,9-15,9-17 Engine Coolant Temperature (ECT) Gauge Sender
Asp and SE 7-4
Carburetor Air Jet (CAJ) Solenoid Valve #2 Int " ........... . . .. 7-8
Asp and SE . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-0 Engine Coolant Temperature (ECT) Sensor
Int 3-4 Asp and SE 3-2
Carburetor Air Jet (CAJ) Solenoid Valve #3 Int 3-6
Asp and SE 3-0 Engine Stop Switch
Int 3-4 AspandSE 3-0,4-1,7-1
CB/Radio Switch Assembly 2-12,9-5 Int. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-4
CB Switch (Driver's)
Asp and SE . . . . . . . . . . .. 2-12, 10-21, 10-25

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 fader Headlights (High) Relay
AspandSE 10-1,10-4 Asp and SE 2-1,2-12,7-1,8-1
Int 10-10 Int 2-7,2-17,7-2,8-3
Fan Fuse 10A Headlights (Low) Relay
Asp and SE , 2-4, 3-28 Asp and SE 2-1,2-12,8-1
Int 2-8, 3-28 Int........................ 2-7,2-17,8-3
Front Brake Light Switch Head Relay Fuse 5A
Asp and SE . . . . . . . . .. 2-2,4-0,9-16,9-20 Asp and SE " 2-3, 8-0
Int. 2-9,9-17 Int 2-9, 8-2
Front Brake Light/Cruise Cancel Switch 4-2 High Beam Indicator
Fuel Gauge Asp and SE " 2-14,7-1,8-1
Asp and SE 2-10,7-4 Int 2-20, 7 -2, 8-3
Int 2-16,7-8 Horn Switch
Fuel Level Sender Asp and SE " 2-2,5-0
Asp and SE 2-10,7-4 Int " " . " 2-9,5-1
Int. . . . . . . . . . . . . . . . . . . . . . .. . . . . . 2-16,7-8 Horn/Turn Relay
Fuel Pump Asp and SE 2-2,2-12,4-0,5-0,
Asp and SE . . . . . . . . . . . . . . . . . . . .. 2-11,3-2 9-3,9-'7,9-16,9-·20
Int. 2-17,3-6 Int 2-9,2-17,4-0,5-1,9-9,9-17
Fuel Reserve Sender 6-0 Horn/Turn/Stop Relay Fuse 15A
Fuel Tank 6-0 Asp and SE " 2-1,4-0,5-0,9-3,
Fuse/Relay Box 9-7,9-16,9-20
Asp and SE 2-0,2-1,2-2,2-3,2-4, Int 2-7,5-1,9-9,9-17
2-12,3-0,3-14,3-26,3-27, Hour/Minute Selector Switch 5-2
3-30,3-31,4-0,4-1,4-2,
5-0,5-2,5-4,5-5,6-0, IGN. Relay
7-0,7-1,7-4,7-5,7-6, Int " 2-9,3-4,3-16
8-0,8-1,9-0,9-2,9-3,9-5, IGN./Cruise Relay
9-6,9-7,9-12,9-13,9-16,9-18, Asp and SE 2-3,3-0,3-14,3-26,
9-19,9-20, 10-0, 10-20, 10-24 3-30,4-1,7-1
Int 2-6,2-7,2-8,2-9,2-17, Int 2-7
3-4,3-16,3-26,3-27, IGN. Start Cruise Fuse 15A
5-1,5-4,5-5,6-1,7-2 Asp and SE ... " . . . .. 2-3,3-0,3-14,3-26
7-6,7-8,7-9,8-2,8-3, 3-30,4-1,7-1
9-0,9-2,9-4,9-8,9-9, IGN. Start Fuse 15A
9-14,9-17,9--18,9-19, Int " " 2-9,3-4,3-16
10-6,10-22 Ignition Coils
Asp and SE " 3-0
Gear Position Switch Int 3-4
Asp and SE ..... 3-1,3--15,3-31,4-2, '7-0 Ignition/Cruise Fuse 5A " 3-26
Int........................ 3-5,3-17,7-2 Ignition Pulse Generator #1
Asp and SE 3-2,7-7
Hazard flasher Relay Int " 3-6,7-7
Asp and SE 2-0,2-13,9-7 Ignition Pulse Generator #2
Int. . . . . . .. . . . . . . . . . . . . . . .. 2-6,2-19,9-9 Asp and SE " 3-2,7-7
Hazard Switch Int 3-6,7-7
Asp and SE 9-7 Ignition Switch
Int 9-9 AspandSE 2-0,2-1,9-2,9-12
Head Fuse 15A Int............. 2-6,2-7,3-16,9-2,9-14
Asp and SE 2-1,7-1,8-1 Illumination
Int 2-7, 7 -2, 8-3 Asp and SE 2-14

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 Component Index

Int.... 2-18 Int................... 10-10,10-22

Illumination Lights Left Front Turn Signal/Position Light
Asp and SE . 2-14,7-5 Asp and SE 2-14,9-10
Int. . . . . . . . . . . . . . . . . . . . . . . . . . . .. 2-20,7'-9 Int 2-20,9-10
Increase/Decrease Switch 5-5 Left Front Tweeter 10-1,10-4,10-20,10-24
In-Line Capacitor A. . . . . . . . . . . . . . . . . . . . .. 3-26 Left Headlight
In-Line Capacitor B 3-26 Asp and SE . 2-14,8-1
In-Line Capacitor C 2-12,5-5 Int 2-20, 8-3
In-line Capacitor D 2-11,2-17,3-2,3"-6 Left Headlight Position Light
In-line Diode A 3-17 Asp and SE 2-14,8-1
In-line Diode B 2-4,9-2,9-13 Int 2-7,2-20,8-2
In-line Diode C 3--17 Left Horn
In-line Fuse A 5A . . . . . . . . . . . . . . . . . . . . . . .. 3-32 Asp and SE 2-12,5-0
In-line Fuse B 5A 3-15, 3-32 Int 2-18,5-1
Instrument Panel Left Noise Filter
Asp and SE ... 2-0,2-10,2-14,3-15,3-30, Asp and SE . . . . . . . . . . . . . . . . . . . .. 2-4,3-28
3-31, 4-1, 5-2, 5-4,5-5, I~ 2-8,3-28
6-0,7-0,7-1,7-4,7--5, Left Radiator Fan Motor
7-6,8--1,9-6,9-10,10-0 Asp and SE . . . . . . . . . . . . . . . . . . . .. 2-4,3-28
Int 2-16,2-20,3-11,6-1, I~ 2-8,3-28
7--2,7-8,7-9,8-3,9-10 Left Rear Speaker
Intake Air Temperature (IAT) Sensor Asp and SE . . . . . . . . . . . . . . . . . . .. 10-1, 10-4
Asp and SE . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-2 Int 10-10
Int 3-6 Left Rear Turn Signal Light
Inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 9-2 Asp and SE 2-13,9-11
Int. . . .. . . . . . . . .. . . . . . . . . . . . . .. 2-19,9-11
LCD Unit 2-0,2-10,2-14,3-30, Left Saddlebag Light Assembly
4-1,5-2,5-4,5-5,6-0,7-0, Asp and SE 2-4,2-13,9-12,9-16
7-1,7-6,9-6,10-0 Int 2-8,2-19,9-14,9-17
Left Accessory Light Left Saddlebag Marker Light 9-2
Asp and SE . 2-5,2-13,9-19 Left Side Trunk Marker Light
Int. 2-19,9-19 Asp and SE 2-5,2-13,9-1
Left Brake Light/Taillight Int............................. 2-19,9-1
Asp and SE 2-5,2-13,9-12,9-16 Left Turn Signal Indicator
Int......... 2--19,9-14,9-17 Asp and SE 2-14,9--10
Left Combination Switch Int 2-20, 9-10
Asp and SE 2-1,2-2,5-0,7-1,8-0, License Plate Light
9-3,9-6,9-7,10-7 Asp and SE 2-4,2-13,9-13
Int 2-7,2-9,5-1,8-2,9-4, Int 2-8,2-19,9-15
9-5,9-7,9-8,9-9,10-9 Low Fuel Indicator 6-0,7--0
Left Cornering Light
Asp and SE . 2-13,9-3 Main fuse A 30A
Int......... 2-18,9-4 Asp and SE . 2-0
Left Cornering Light Relay Int . 2-6
AspandSE 2-1,2-11,2-13,9-3 Main Fuse 8 55A
Int........................ 2-7,2-18,9-4 Asp and SE . 2-0,3-26
Left Fairing Marker Light Int . 2-6,3-26
Asp and SE . . . . . . . . . . . . . . . . . . . .. 2-14,9-0 Mute/Search Switch . 10-3, 10-9
Int 2-20,9-0
Left Front Speaker Neutral Indicator
Asp and SE 10-1, 10-4, 10-20, 10-24 Asp and SE 3-15,3-31,7-0

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 Int 3 -1 7, 7 - 2 Right Accessory Light
Asp and SE 2-5,2-13,9-19
Oil Pressure Indicator Int 2-19,9-19
Asp and SE 6--0,7-0 Right Brake Light/Taillight
Int 6--1, 7·-2 Asp and SE 2-5,2-13,9-13,9-16
Oil Pressure Switch Int 2-19,9-15,9-17
Asp and SE . . . . . . . . . . . . . . . . . . . .. 3-31,6-0 Right Combination Switch
Int 3 -- 31, 6 - 1 Asp and SE ..... 2-3,3-0,3-14,3-30,4-1,
Outlet Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . .. 5-5 4-2,7-1,8-0,9-5,10-0,10-20,10-24
Overdrive Indicator Int. 2-9,3-4,3-16,8-2,
Asp and SE 7-0 10-6.10-22
Int 7-2 Right Cornering Light
Asp and SE . . . . . . . . . . . . . . . . . . . .. 2-11,9-3
Pa.rking Fuse 10A Int. 2-17,9-4
Asp and SE 2-4,5-5,9-2,9-13 Right Cornering Light Relay
1m 2-8,9-2,9-14 Asp and SE 2-1.2-11.9-3
Passenger Controller Int 2-7,2-17,9-4
Asp and SE 10-2,10-3,10·-21,10--25 Right Fairing Marker Light
Int 10-9, 10--23 Asp and SE 2-14,9-0
Passenger Headset. .. . .10-2,10-8,10-9 Int 2-20,9-0
Position Light Switch Right Front Speaker
Asp and SE 2-1, 9-3, 9-6 Asp and SE 10-1,10-4,10-20,10-24
Int 2-7, 9-4,9-8 Int................. 10-10.10-22
Position Relay 2--2,9-3,9-7 Right Front Turn Signal/Position Light
Power Control Relay #1 3-32 Asp and SE 2-14,9-10
Power Control Relay #2 3-32 Int............. 2-20,9-10
Pressure Check Switch 5-·4 Right Front Tweeter 10-1, 10-4,
10-20,10-24
Ra.diator Fan Temperature Switch 3--28 Right Headlight
Radio/Cassette Deck ..... 2---0,2-12,5-2,7-6, Asp and SE 2-14,8-1
10-0,10-1,10-2,10-3,10--4, 1m 2-20,8-3
10-20,10-21,10-24,10-25 Right Headlight Position Light
Radio/Clock ..... 2-6,2-18,10-6,10-7,10-8, Asp and SE . . . . . . . . . . . . . . . . . . . .. 2-14,8-0
10-9,10---10,10-22,10-24 Int 2-7, 2-20, 8-2
Radio Noise Filter. . . . . . . . . . . . . . . . .. 2-14,5-5 Right Horn
Radio Switch Illumination 9-5 Asp and SE . . . . . . . . . . . . . . . . . . . .. 2-11, 5-0
Rear Brake Cruise Cancel Switch 4-2 Int 2 - 17, 5 - 1
Rear Brake Light Switch Right Noise Filter
Asp and SE 2-2,4-0,9-16,9-20 Asp and SE . . . . . . . . . . . . . . . . . . . .. 2-4,3-28
Int.. 2-9,9-17 1m 2-8,3-28
Rear Suspension Solenoid Valve 2-11, 5-5 Right Radiator Fan Motor
Relief Solenoid Valve. . . . . . . . . . . . . .. 2-11, 5-5 Asp and SE . . . . . . . . . . . . . . . . . . . .. 2-4,3-28
Reverse Control Unit 2-11,3-30,3-31, 1m 2-8,3-28
3--32,6-0 Right Rear Light Assembly 9-2
Reverse Diode Assembly ..... 3-15,3-31,8-0 Right Rear Speaker
Reverse Indicator. . . . . . . . . . . . . . . . .. 3-30,7--0 Asp . . . . . . . . . . . . . . . . . . . . . 10-1, 10-4
Reverse Lever Switch 2-2, 3-14, 3-31, Int 10 -1 0
7-0,8-0 Right Rear Turn Signal Light
Reverse Resistors. . . . . . . . . . . . . . . . . . . . . .. 3-32 Asp and SE . 2-13,9-11
Reverse Switch. . . . . . . . . . . . . . . . . .. 3-15, 3-31 1m . 2-19,9-11
Reverse Switch Relay 3·-15,3-31

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 Component Index

Right Saddlebag Light Assembly Int 2-7,2-17,3-16,6-1,7-2,

Asp and SE 2-4,2-13,9-13,9-16 7-8,7-9,8-2,9-4,9-8,
Int................. 2-8,2-19,9-15,9-17 9-14,9-19
Right Saddlebag Marker Light 9-2 Tail/Meter/Position Fuse 15A
Right Side Trunk Marker Light Asp and SE 2-1,6-0,7-0,7-4,
Asp and SE ......... 2-5,2-13,9-1 8-0, 9-0, 9-2, 9-3, 9-5,
Int. 2-19,9-1 9-6,9-12,9-19,9-20
Right Turn Signal Indicator Int 2-7,3-16,6-1,7-2,
Asp and SE 2-14,9-10 7-8,8-2,9-0,9-2,
Int " .. 2-20,9-10 9-4,9-8,9-14,9-19
RVS Start Fuse 5A . 2-2,3-14,3-31,7-0,8-0 Throttle Cancel Switch 4-2
Transmit Switch
Side Stand Indicator Asp and SE 10-21,10-25
Asp and SE 7-0 Int. " . . . . . . . . . . . . . .. .. . . . .. . . . . . ... 10-23
Int. . .. . . . . . . . . . . . . . . . . . . . . . . . .. .. . . . .. 7-2 Trunk Light
Side Stand Switch Asp and SE . . . . . . . . . . . .. . . . . . ... 2-0,9-18
Asp and SE 2-12,3-1,3-15,3-31,7-0 Int " . . . . . . .. . . . . . .. . . . .. 2-6,9-18
Int... 2-18,3-5,3-17,7-2 Trunk Light Assembly
Speed Limiter Fuse 65A 2-10,3-32 Asp and SE 2-5,2-13,9-11,
Speed Limiter Relay. . . . . . . . . . . . . . . . . . . .. 3-32 9-12,9-13,9-16
Speedometer Illumination Int 2-19,9-11,9-14,9-15,9-17
Asp and SE " .. 2-14 Trunk Light Switch
Int.................................. 2-20 Asp and SE 2-12,9-18
Spoiler BrakefTaillight 2-13, 9-20 Int............................ 2-18,9-18
Spoiler Brake/Taillight Control Module 2-5, Turn/Hazard Illumination 9-5
2-13,9-20 Turn Signal Cancel
Starter Motor. . . . . . . . . .. . . . . . . . . . . . . . . . . 3-17 Control Unit ..... " 2-2,2-12,7-6,9-3,9-6
Starter Relay A Turn Signal Flasher Relay
Asp and SE . .. . . . . . . . . . . .. 2-0,3-15,3-30 Asp and SE " " 2-2,9-7
Int 2-6,3-17 Int. . . . . . . . . . . . . . .. . . . .. 2-9,2-19,9-9
Starter Relay B 3-15,3-32 Turn Signal Light Switch
Starter Relay Regulator 2-13,3-30 Asp and SE 9-7
Starter/Reverse Motor 3-15,3-32 Int 9-9
Starter/Reverse Switch 2-3, 3-14, 3-30, Turn Signal Lights Cancel Switch 9-6
8-0,10-0,10-20,10-24 Turn Signal Lights On Switch
Starter Switch............... 2-9,3-10,8-2, Asp and SE . . . . . . . . . . . . . . . . . . . . . . . . . . .. 9-6
10-6, 10-22 Int 9-8
Stop Fuse 15A Turn Signal Switch
Asp and SE 2-1,4-0,9-16,9-20 Asp and SE 2-11,9-7
Int " . . . 2-7,9-17 Int 9-9
Stop Lights Relay
Asp and SE 2-1,2-12,4-0,9-16,9-20 Vanity Mirror light Switch 9-18
Int 2-7,2-17,9-17
Wheel Speed Sensor ... 2-0,2-10,7-6,10-0
Tachometer
Asp and SE 2-14,7-4
Int " .. . . . . . . . . . . . . .. 2-20,7-8
Tail (Main) Relay
Asp and SE 2-1,2-12,3-30,6-0,
7-0,7-4,7-5,8-0,9-0,
9-2,9-3,9-5,9-6,9-12,9-19,9-20

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