READ THIS MANUAL CAREFULLY!

It contains important safety information.

OWNER’S MANUAL

YFM250XN
WARNING This ATV should not be ridden by anyone under 16 years of age.

LIT-11626-14-17 4XE-F8199-13

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 EBU00001

INTRODUCTION
Congratulations on your purchase of the Yamaha YFM250X. It represents the result of
many years of Yamaha experience in the production of fine sporting, touring, and pace-set-
ting racing machines. With the purchase of this Yamaha, you can now appreciate the high
degree of craftsmanship and reliability that have made Yamaha a leader in these fields.

This manual will provide you with a good basic understanding of the features and opera-
E
tion of this machine. This manual includes important safety information. It provides infor-
mation about special techniques and skills necessary to ride your machine. It also includes
basic maintenance and inspection procedures. If you have any questions regarding the op-
eration or maintenance of your machine, please consult a Yamaha dealer.
AN IMPORTANT SAFETY MESSAGE:
● READ THIS MANUAL TOGETHER WITH TIPS FOR THE ATV RIDER CAREFULLY AND
COMPLETELY BEFORE OPERATING YOUR MACHINE. MAKE SURE YOU UNDERSTAND
ALL INSTRUCTIONS.
● PAY CLOSE ATTENTION TO THE WARNING AND CAUTION LABELS ON THE MACHINE.
● NEVER OPERATE AN ATV WITHOUT PROPER TRAINING OR INSTRUCTION. FREE
TRAINING IS AVAILABLE TO ANYONE WHO BUYS A NEW ATV. CALL 1-800-447-4700
FOR MORE INFORMATION.
● THIS ATV, AND ANY OTHER ATV OVER 90cc, SHOULD NOT BE RIDDEN BY ANYONE
UNDER 16 YEARS OF AGE.

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 EBU00010

IMPORTANT MANUAL INFORMATION

FAILURE TO FOLLOW THE WARNINGS CONTAINED IN THIS MANUAL CAN RESULT IN
SERIOUS INJURY OR DEATH.
Particularly important information is distinguished in this manual by the following
notations:
E The Safety Alert Symbol means ATTENTION! BECOME ALERT!
YOUR SAFETY IS INVOLVED!

WARNING Failure to follow WARNING instructions could result in severe injury

or death to the machine operator, a bystander or a person inspecting
or repairing the machine.

CAUTION: A CAUTION indicates special precautions that must be taken to avoid

damage to the machine.
NOTE: A NOTE provides key information to make procedures easier or
clearer.

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 EBU00011

IMPORTANT NOTICE
This machine is designed and manufactured for OFF-ROAD use only. It is illegal and unsafe
to operate this machine on any public street, road or highway.
This machine complies with all applicable OFF-ROAD noise level and spark arrester laws
and regulations in effect at the time of manufacture.
Please check your local riding laws and regulations before operating this machine. E

EBU00531

YFM250XN(C)
OWNER’S MANUAL
AFFIX DEALER © 2000 by Yamaha Motor Corporation,
U.S.A.
LABEL HERE 1st Edition, May 2000
All rights reserved. Any reprinting or
unauthorized use without the written
permission of
Yamaha Motor Corporation,
U.S.A. is expressly prohibited.
Printed in U.S.A.
P/N LIT-11626-14-17

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 EBU00014

4 CONTROL FUNCTIONS...................4-1
WARNING Main switch.....................................4-1
Indicates a potential hazard that could Indicator lights................................4-2
result in serious injury or death. Handlebar switches .......................4-2
Throttle lever ..................................4-4
Speed limiter ..................................4-5
CONTENTS Front brake lever ............................4-6
Rear brake pedal and lever ...........4-6
Parking brake..................................4-8
1 LOCATION OF THE WARNING
Shift pedal.......................................4-9
AND SPECIFICATION LABELS .......1-1
Drive select lever............................4-9
Recoil starter.................................4-10
2 SAFETY INFORMATION .................2-1
Fuel tank cap.................................4-11
Fuel cock .......................................4-12
3 DESCRIPTION AND MACHINE
Starter (choke) ..............................4-13
IDENTIFICATION..............................3-1
Seat................................................4-14
Identification numbers record ......3-2
Storage box ..................................4-15
Key identification number ............3-2
Front carrier ..................................4-16
Vehicle identification number ......3-3
Rear carrier ...................................4-16
Model label.....................................3-3
Rear shock absorber
adjustment...................................4-16

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 5 PRE-OPERATION CHECKS ............. 5-1 Engine break-in ..............................6-7
Front and rear brakes .................... 5-3 Parking ............................................6-8
Fuel.................................................. 5-5 Parking on a slope .........................6-9
Engine oil........................................ 5-7 Accessories and loading .............6-10
Final gear oil................................... 5-8
Throttle lever .................................. 5-8 7 RIDING YOUR ATV ..........................7-1
Fittings and Fasteners ................... 5-8 Getting to know your ATV ............7-3
Lights............................................... 5-8 Ride with care and good
Switches ......................................... 5-8 judgement .....................................7-4
Battery............................................. 5-8 Be careful where you ride ...........7-16
Tires................................................. 5-9 Turning your ATV ........................7-23
How to measure tire pressure.... 5-11 Climbing uphill .............................7-25
Tire wear limit .............................. 5-12 Riding downhill ............................7-30
Crossing a slope...........................7-32
6 OPERATION ..................................... 6-1 Crossing through shallow
Starting a cold engine ................... 6-1 water ............................................7-34
Starting a warm engine ................ 6-3 Riding over rough terrain............7-36
Warming up ................................... 6-3 Sliding and skidding ....................7-37
Drive select lever operation and What to do if .................................7-39
reverse driving.............................. 6-4 What to do ....................................7-39
Shifting ........................................... 6-5
To start out and accelerate: .......... 6-6
To decelerate:................................. 6-7

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 8 PERIODIC MAINTENANCE AND Brake lever and brake pedal
ADJUSTMENT .................................8-1 lubrication....................................8-25
Owner’s manual and tool kit ........8-1 Steering shaft lubrication............8-26
Periodic maintenance/ Wheel removal .............................8-26
lubrication .....................................8-3 Wheel installation ........................8-27
Engine oil........................................8-5 Battery ...........................................8-28
Final gear oil...................................8-9 Replenishing the battery fluid.....8-30
Spark plug inspection..................8-11 Fuse replacement.........................8-31
Air filter cleaning..........................8-12 Replacing the headlight bulb......8-32
Carburetor adjustment ................8-15 Headlight beam adjustment .......8-33
Idle speed adjustment .................8-15 Spark arrester cleaning ...............8-34
Valve clearance adjustment........8-16 Troubleshooting...........................8-35
Throttle lever adjustment............8-16 Troubleshooting chart .................8-36
Front brake pad inspection .........8-17
Rear brake shoe inspection ........8-17 9 CLEANING AND STORAGE ............9-1
Brake fluid level inspection.........8-18 Cleaning ..........................................9-1
Brake fluid replacement ..............8-19 Storage............................................9-3
Front brake adjustment ...............8-19
Rear brake adjustment ................8-21 10 SPECIFICATIONS ...........................10-1
Clutch adjustment........................8-23
Cable inspection and 11 NOISE REGULATION.....................11-1
lubrication ...................................8-24

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 12 MAINTENANCE RECORD ............. 12-1

13 ATV LIMITED WARRANTY ........... 13-1

14 YAMAHA EXTENDED SERVICE

(Y.E.S.) ............................................ 14-1

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 EBU00464

LOCATION OF THE WARNING AND

SPECIFICATION LABELS

1-1

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 Read and understand all of the labels on 1
your machine. They contain important in-
formation for safe and proper operation of 1
your ATV. 2

3
Never remove any labels from your ATV. If 2
a label becomes difficult to read or comes 4
off, a replacement label is available from 5
your Yamaha dealer.
6

10

11

12

13

14

1-2

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 3 5

1-3

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 6 7

1-4

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 EBU00017*

SAFETY INFORMATION

AN ATV IS NOT A TOY AND CAN BE HAZARDOUS TO OPERATE. An ATV handles differ-
ently from other vehicles including motorcycles and cars. A collision or rollover can occur
quickly, even during routine maneuvers such as turning and riding on hills or over obsta-
E cles, if you fail to take proper precautions.
SEVERE INJURY OR DEATH can result if you do not follow these instructions:
● Read this manual and all labels carefully and follow the operating procedures described.
● Never operate an ATV without proper training or instruction. Take a Training Course. Be-
ginners should receive training from a certified instructor. Contact an authorized ATV
dealer or call 1-800-447-4700 to find out about the training courses nearest you.
● Always follow the age recommendation:
- A child under 16 years old should never operate an ATV with engine size greater than
90cc.
● Never allow a child under age 16 to operate an ATV without adult supervision, and never
allow continued use of an ATV by a child if he or she does not have the abilities to oper-
ate it safely.
● Never carry a passenger on an ATV.
● Always avoid operating an ATV on any paved surfaces, including sidewalks, driveways,
parking lots and streets.
● Never operate an ATV on any public street, road or highway, even a dirt or gravel one.

2-1

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 ● Never operate an ATV without wearing an approved motorcycle helmet that fits proper-
ly. You should also wear eye protection (goggles or face shield), gloves, boots, long-
sleeved shirt or jacket, and long pants. 2
● Never consume alcohol or drugs before or while operating this ATV. 2
● Never operate at speeds too fast for your skills or the conditions. Always go at a speed
3
that is proper for the terrain, visibility and operating conditions, and your experience.
● Never attempt wheelies, jumps, or other stunts. E
4
● Always inspect your ATV each time you use it to make sure it is in safe operating condi- 5
tion. Always follow the inspection and maintenance procedures and schedules de-
6
scribed in this manual.
● Always keep both hands on the handlebars and both feet on the footboards of the ATV 7
during operation. 8
● Always go slowly and be extra careful when operating on unfamiliar terrain. Always be
9
alert to changing terrain conditions when operating the ATV.
● Never operate on excessively rough, slippery or loose terrain until you have learned and 20
practiced the skills necessary to control the ATV on such terrain. Always be especially 22
cautious on these kinds of terrain.
22
● Always follow proper procedures for turning as described in this manual. Practice turn-
ing at low speeds before attempting to turn at faster speeds. Do not turn at excessive 23
speed.
24
● Never operate the ATV on hills too steep for the ATV or for your abilities. Practice on
smaller hills before attempting larger hills.
2-2

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 ● Always follow proper procedures for climbing hills as described in this manual. Check
the terrain carefully before you start up any hill. Never climb hills with excessively slip-
pery or loose surfaces. Shift your weight forward. Never open the throttle suddenly or
make sudden gear changes. Never go over the top of a hill at high speed.
● Always follow proper procedures for going down hills and for braking on hills as de-
scribed in this manual. Check the terrain carefully before you start down any hill. Shift
E your weight backward. Never go down a hill at high speed. Avoid going down a hill at an
angle that would cause the vehicle to lean sharply to one side. Go straight down the hill
where possible.
● Always follow proper procedures for crossing the side of a hill as described in this man-
ual. Avoid hills with excessively slippery or loose surfaces. Shift your weight to the uphill
side of the ATV. Never attempt to turn the ATV around on any hill until you have mas-
tered the turning technique described in this manual on level ground. Avoid crossing the
side of a steep hill if possible.
● Always use proper procedures if you stall or roll backwards when climbing a hill. To
avoid stalling, use proper gear and maintain a steady speed when climbing a hill. If you
stall or roll backwards, follow the special procedure for braking described in this manual.
Dismount on the uphill side or to a side if pointed straight uphill. Turn the ATV around
and remount, following the procedure described in this manual.
● Always check for obstacles before operating in a new area.
Never attempt to operate over large obstacles, such as large rocks or fallen trees. Always
follow proper procedures when operating over obstacles as described in this manual.
2-3

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 ● Always be careful when skidding or sliding. Learn to safely control skidding or sliding by
practicing at low speeds and on level, smooth terrain. On extremely slippery surfaces,
such as ice, go slowly and be very cautious in order to reduce the chance of skidding or
sliding out of control.
● Never operate an ATV in fast flowing water or in water deeper than that recommended
in this manual. Remember that wet brakes may have reduced stopping ability. Test your
brakes after leaving water. If necessary, apply them several times to let friction dry out E
the linings.
● Always be sure there are no obstacles or people behind you when you operate in re-
verse. When it is safe to proceed in reverse, go slowly.
● Always use the size and type tires specified in this manual.
Always maintain proper tire pressure as described in this manual.
● Never modify an ATV through improper installation or use of accessories.
● Never exceed the stated load capacity for an ATV. Cargo should be properly distributed
and securely attached. Reduce speed and follow instructions in this manual for carrying
cargo or pulling a trailer. Allow greater distance for braking.

FOR MORE INFORMATION ABOUT ATV SAFETY, call the Consumer Products Safety Com-
mission at 1-800-638-2772, or the ATV Distributor’s Safety Hotline at 1-800-852-5344.

2-4

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 WARNING When transporting the machine in an-
POTENTIAL HAZARD other vehicle, be sure it is kept upright
Improper handling of gasoline. and that the fuel cock is in the “OFF” po-
sition. Otherwise, fuel may leak out of
WHAT CAN HAPPEN
the carburetor or fuel tank.
Gasoline can catch fire and you could be
burned. WHAT CAN HAPPEN
Gasoline is poisonous and can cause
HOW TO AVOID THE HAZARD
injuries.
Always turn off the engine when refuel-
ing. HOW TO AVOID THE HAZARD
Do not refuel right after the engine has If you should swallow some gasoline or
been running and is still very hot. Do not inhale a lot of gasoline vapor, or get
spill gasoline on the engine or exhaust some gasoline in your eyes, see your
pipe/muffler when refueling. Never re- doctor immediately.
fuel while smoking, or while in the vicin- If gasoline spills on your skin, wash with
ity of sparks, open flames, or other soap and water. If gasoline spills on
sources of ignition such as the pilot your clothing, change your clothes.
lights of water heaters and clothes dry-
ers.

2-5

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 WARNING
POTENTIAL HAZARD
Starting or running the engine in a
closed area.
WHAT CAN HAPPEN
Exhaust fumes are poisonous and may
cause loss of consciousness and death
within a short time.
HOW TO AVOID THE HAZARD
Always operate your machine in an area
with adequate ventilation.

2-6

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 EBU00032

DESCRIPTION AND MACHINE IDENTIFICATION

1. Spark arrester 12. Taillight

2. Rear carrier 13. Rear wheel
3. Seat 14. Shift pedal
4. Fuel tank cap 15. Drive select lever
5. Front carrier 16. Rear brake lever
6. Brake pedal 17. Parking brake
7. Front wheel 18. Main switch
8. Headlight 19. Front brake lever
9. Fuel cock 20. Throttle lever
10. Starter (choke) 21. Handlebar switches
11. Recoil starter
NOTE:
The machine you have purchased may differ
slightly from those shown in the figures of this
manual.
3-1

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 EBU00033 EBU00035

Identification numbers record Key identification number

Record the key identification number, vehi- The key identification number is stamped
cle identification number and model label on the key as shown in the following illus- 3
information in the spaces provided for as- tration. This number can be used for order- 3
sistance when ordering spare parts from a ing a new key.
3
Yamaha dealer or for reference in case the
vehicle is stolen. 4
1. KEY IDENTIFICATION NUMBER: 5

8
2. VEHICLE IDENTIFICATION NUMBER:
9

30
1. Key identification number
33

3. MODEL LABEL INFORMATION: 33

33

34

3-2

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 EBU00036 EBU00038

Vehicle identification number Model label

The vehicle identification number is The model label is affixed to the frame.
stamped into the frame. Record the information on this label in the
space provided. This information will be
needed to order spare parts from your
Yamaha dealer.

1. Vehicle identification number

NOTE:
The vehicle identification number is used
1. Model label
to identify your machine.

3-3

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 EBU00039

CONTROL FUNCTIONS
4
WARNING
Indicates a potential hazard that could 4
result in serious injury or death. 4

4
EBU00041

Main switch 5
Functions of the respective switch posi- 6
tions are as follows:
7
ON: 8
Engine can be started only at this position
9
and the headlight and taillight come on
when the light switch is on. 40

44
OFF:
44
All electrical circuits are switched off. The
key can be removed in this position. 44

44

4-1

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 EBU00043 EBU00053

Indicator lights Handlebar switches

1. Reverse indicator light “R” 1. Lights switch “LIGHTS”

2. Neutral indicator light “N” 2. Engine stop switch “ENG.STOP”
3. Start switch “START”

EBU00602

Reverse indicator light “R” EBU00054

This indicator light comes on when the Engine stop switch “ENG. STOP”
transmission is in reverse. Make sure that the engine stop switch is in
the “RUN” position. The engine stop switch
EBU00603
controls ignition and can be used at all times
Neutral indicator light “N” to stop the engine, especially in an emer-
This indicator light comes on when the gency. The engine will not start or run when
transmission is in neutral. the engine stop switch is turned to “OFF”.
4-2

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 EBU00647 EBU00734

Start switch “START” Light switch “LIGHTS”

The starter motor cranks the engine when Turn the switch to the “LO” position to
this switch is pushed. switch on the low beam and the taillight.
Turn the switch to the “HI” position to
CAUTION: switch on the high beam and the taillight.
See the starting instructions on page 6-1 Turn the switch to the “OFF” position to
prior to starting the engine. switch off the headlight and the taillight.

CAUTION:
Do not use the headlight with the engine
turned off for more than thirty minutes.
The battery may discharge to the point
that the starter motor will not operate
properly. If this should happen, remove
the battery and recharge it.

4-3

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 EBU00062

Throttle lever WARNING

Once the engine is running, movement of the
throttle lever will increase the engine speed. POTENTIAL HAZARD
Regulate the speed of the machine by vary- Malfunction of throttle.
ing the throttle position. Because the throttle WHAT CAN HAPPEN
is spring-loaded, the machine will decelerate, The throttle could be hard to operate,
and the engine will return to an idle any time making it difficult to speed up or slow
the hand is removed from the throttle lever. down when you need to. This could
Before starting the engine, check the throt- cause an accident.
tle to be sure it is operating smoothly. HOW TO AVOID THE HAZARD
Make sure it returns to the idle position as Check the operation of the throttle lever
soon as the lever is released. before you start the engine. If it does
not work smoothly, check for the cause.
Correct the problem before riding the
ATV. Consult a Yamaha dealer if you
can’t find or solve the problem yourself.

1. Throttle lever

4-4

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 EBU00066

Speed limiter
WARNING
The speed limiter keeps the throttle from
fully opening, even when the throttle lever POTENTIAL HAZARD
is pushed to the maximum. Screwing in Improper adjustment of the speed limit-
the adjuster limits the maximum engine er and throttle.
power available and decreases the maxi- WHAT CAN HAPPEN
mum speed of the ATV. The throttle cable could be damaged.
Improper throttle operation could re-
sult. You could lose control, have an ac-
cident or be injured.
HOW TO AVOID THE HAZARD
Do not turn the speed adjuster out more
than 12 mm (0.47 in). Always make sure
the throttle lever free play is adjusted to
3 ~ 5 mm (0.12 ~ 0.20 in). See page 8-16.

1. Locknut 2. Adjuster a. 12 mm (0.47 in)

4-5

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 EBU00070 EBU00073

Front brake lever Rear brake pedal and lever

The front brake lever is located on the right The brake pedal is located on the right side
handlebar. Pull it toward the handlebar to of the machine and the brake lever is locat-
apply the front brake. ed on the left handlebar. Push down on the
pedal or pull the lever toward the handle-
bar to apply the rear brake.

1. Front brake lever

1. Rear brake pedal

4-6

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 1. Rear brake lever

4-7

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 EBU00074

Parking brake
WARNING
Use the parking brake when you have to
start the engine or park the machine, espe- POTENTIAL HAZARD
cially on a slope. Apply the rear brake lever Improper use of the parking brake.
and push down the lock plate to apply the WHAT CAN HAPPEN
parking brake. Squeeze the rear brake le- The ATV could start moving unexpect-
ver to release the parking brake. edly if the parking brake is not applied
before starting the engine. This could
cause loss of control or a collision.
The brake could overheat if you ride the
ATV without releasing the parking
brake. You could lose braking perfor-
mance which could cause an accident.
You could also wear out the brakes
prematurely.
HOW TO AVOID THE HAZARD
Always set the parking brake before
1. Lock plate
starting the engine.
Always be sure you have released the
parking brake before you begin to ride.

4-8

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 EBU00083 EBU00085

Shift pedal Drive select lever

This machine is equipped with a constant- The drive select lever is used for driving
mesh 5-speed transmission. The shift ped- the machine either forward or in reverse.
al is located on the left side of the engine. Refer to page 6-4 for drive select lever op-
Neutral is at the bottom position. eration.

1. Shift pedal N. Neutral position 1. Drive select lever

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 EBU00590

Recoil starter
WARNING
Firmly grasp the handle and pull slightly
until engagement can be felt. Then pull POTENTIAL HAZARD
forcefully, being careful not to pull the rope Starting the engine in gear and/or start-
all the way out. ing the engine without setting the park-
ing brake.
WHAT CAN HAPPEN
The ATV could start to move unexpect-
edly, which could cause an accident.
HOW TO AVOID THE HAZARD
Put the transmission in neutral and set
the parking brake before starting the
engine.

1. Recoil starter

4-10

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 EBU00092

Fuel tank cap

Remove the fuel tank cap by turning it
counterclockwise.

1. Fuel tank cap

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 EBU00093

Fuel cock
The fuel cock supplies fuel from the fuel
tank to the carburetor.
The fuel cock has three positions.

OFF: With the lever in this position fuel

will not flow. Always turn the lever to
this position when the engine is not
running.

ON: With the lever in this position, fuel

flows to the carburetor. Normal
riding is done with the lever in this
position.

RES: This indicates reserve. If you run out

of fuel while riding, turn the lever to
this position. THEN FILL THE FUEL
TANK AT THE FIRST OPPORTUNITY.
After refuelling, return the fuel cock
lever to the “ON” position.

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 EBU00094

Starter (choke)
Starting a cold engine requires a richer air-
fuel mixture. A separate starter circuit sup-
plies this mixture.
Move in direction a to turn on the starter
(choke).
Move in direction b to turn off the starter
(choke).
Refer to “Starting a cold engine” for prop-
er operation. (See page 6-1.)

1. Fully-open 2. Half open

3. Closed A. Starter (choke)

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 EBU00567

Seat
To remove the seat, pull the seat lock lever
upward and pull up the seat at the rear.

To install the seat, insert the projections on

the front of the seat into the seat holders
1. Seat lock lever
and push down on the seat at the rear.
NOTE:
Make sure that the seat is securely fitted.

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 EBU00098

Storage box

Maximum load limit: 2 kg (4.4 lb)

CAUTION:
To protect from damage, do not put metal
products, like tools or sharply edged prod-
ucts directly in the storage box. If they
must be stored, wrap them in appropriate
cushion material.

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 EBU00099

Front carrier

Maximum load limit: 30 kg (66 lb)

EBU00100

Rear carrier

Maximum load limit: 45 kg (99 lb)

EBU00634 a. Increase spring preload b. Decrease spring preload

Rear shock absorber adjustment Standard position: B
The spring preload can be adjusted to suit A - Minimum (Soft)
the rider’s weight and riding conditions. E - Maximum (Hard)
Adjust the spring preload as follows:
To increase the spring preload, turn the ad-
juster in direction a.
To decrease the spring preload, turn the
adjuster in direction b.
EBU00112

WARNING
Indicates a potential hazard that could
result in serious injury or death.
4-16

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 PRE-OPERATION CHECKS
Before using this machine, check the following points:
ITEM ROUTINE PAGE
• Check operation, condition and free play.
Brakes 5-3, 8-17 ~ 8-23
• Adjust if necessary.
E Fuel
• Check fuel level.
• Fill with fuel if necessary.
5-5 ~ 5-6

• Check oil level.

Engine oil 5-7, 8-5 ~ 8-8
• Fill with oil if necessary.
Final gear oil • Check for leakage. 5-8, 8-9 ~ 8-10
Throttle • Check for proper throttle cable operation. 5-8, 8-16
5-9 ~ 5-12,
Wheels and tires • Check tire pressure, wear and damage.
8-26 ~ 8-27
Fittings and Fasteners • Check all fittings and fasteners. 5-8
Lights • Check for proper operation. 5-8, 8-32 ~ 8-33
• Check fluid level.
Battery 5-8, 8-28 ~ 8-30
• Fill with distilled water if necessary.

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 WARNING
POTENTIAL HAZARD 5
Failure to inspect the ATV before oper- 5
ating.
Failure to properly maintain the ATV. 5

WHAT CAN HAPPEN 5

Increases the possibility of an accident 5
or equipment damage.
6
HOW TO AVOID THE HAZARD
Always inspect your ATV each time you 7
use it to make sure the ATV is in safe op- 8
erating condition.
9
Always follow the inspection and main-
tenance procedures and schedules de- 50
scribed in the Owner’s Manual. 55

55

55

55

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 EBU00670*

Front and rear brakes 3. Brake fluid leakage

1. Brake levers and brake pedal Check to see if any brake fluid is leak-
Check for correct free play in the rear ing out of the pipe joints or master cyl-
brake lever and that there is no free inder. Apply the brakes firmly for one
play in the front brake lever. If the free minute. If there is any leaking, have the
play is incorrect, adjust it. (See pages ATV inspected by a Yamaha dealer.
8-17 ~ 8-23.) 4. Brake operation
Check the operation of the levers and Test the brakes at slow speed after
pedal. They should move smoothly starting out to make sure they are
and there should be a firm feeling working properly. If the brakes do not
when the brakes are applied. If not, provide proper braking performance,
have the ATV inspected by a Yamaha inspect the brake pads for wear. (See
dealer. page 8-17.)
2. Brake fluid level
Check the brake fluid level.
Add fluid if necessary. (See pages 8-18
~ 8-19.)

Recommended brake fluid: DOT 4

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 WARNING
POTENTIAL HAZARD
Riding with improperly operating
brakes.
WHAT CAN HAPPEN
You could lose braking ability, which
could lead to an accident.
HOW TO AVOID THE HAZARD
Always check the brakes at the start of
every ride. Do not ride the ATV if you
find any problem with the brakes. If a
problem cannot be corrected by the ad-
justment procedures provided in this
manual, have the ATV inspected by a
Yamaha dealer.

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 EBU00126

Fuel Gasohol
Make sure there is sufficient gasoline in the There are two types of gasohol; gasohol
tank. containing ethanol and that containing
methanol. Gasohol containing ethanol can
Recommended fuel: be used if ethanol content does not exceed
UNLEADED FUEL 10%. Gasohol containing methanol is not
Fuel tank capacity: recommended by Yamaha because it may
Total: cause fuel system damage or vehicle per-
12 L (2.64 Imp gal, 3.17 US gal) formance problems.
Reserve:
1.6 L (0.35 Imp gal, 0.42 US gal)

Your Yamaha engine has been designed to

use regular unleaded gasoline with a
pump octane number ([R+M]/2) of 86 or
higher, or research octane number of 91 or
higher. If knocking or pinging occurs, use a
different brand of gasoline or premium un-
leaded fuel. Unleaded fuel will give you
longer spark plug life and reduced mainte-
1. Filler tube 2. Fuel level
nance cost. If unleaded gasoline is not
available, then leaded regular gasoline can
be used.
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 WARNING
POTENTIAL HAZARD
Improper care when refueling.
WHAT CAN HAPPEN
Fuel can spill, which can cause a fire and
severe injury.
Fuel expands when it heats up. If the
fuel tank is overfilled, fuel could spill out
due to heat from the engine or the sun.
HOW TO AVOID THE HAZARD
Do not overfill the fuel tank. Be careful
not to spill fuel, especially on the engine
or exhaust pipe. Wipe up any spilled fuel
immediately. Be sure the fuel tank cap is
closed securely.
Do not refuel right after the engine has
been running and is still very hot.

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 EBU00441

Engine oil
Make sure the engine oil is at the specified CAUTION:
level. Add oil as necessary. (See page 8-5 ~ Be sure to use motor oils that do not con-
8-8.) tain anti-friction modifiers.
Passenger car motor oils (often labeled
Recommended oil: “Energy Conserving”) contain anti-friction
0° 10° 30° 50° 70° 90° 110° 130°F additives which will cause clutch and/or
YAMALUBE 4 (20W40) or SAE20W40 starter clutch slippage, resulting in re-
duced component life and poor engine
YAMALUBE 4 (10W30) or SAE10W30
performance.
SAE 5W30

–20° –10° 0° 10° 20° 30° 40° 50°C Oil quantity:

Periodic oil change:
Recommended engine oil classification: 1.5 L (1.3 lmp qt, 1.6 US qt)
API Service SE, SF, SG type or higher With oil filter replacement:
1.6 L (1.4 lmp qt, 1.7 US qt)
Total amount:
1.8 L (1.6 lmp qt, 1.9 US qt)

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 EBU00145 EBU00152

Final gear oil Fittings and Fasteners

Make sure the final gear oil is at the speci- Always check the tightness of chassis fittings
fied level. Add oil as necessary (see page and fasteners before a ride. Take the ma-
8-9 for details). chine to a Yamaha dealer or refer to the Ser-
vice Manual for correct tightening torque.
Recommended oil:
SAE 80 API GL-4 Hypoid gear oil EBU00153

Lights
If desired, an SAE 80W90 hypoid gear oil
Check the headlight and taillight to make
may be used for all conditions.
sure they are in working condition. Repair
NOTE: as necessary for proper operation.
GL-4 is a quality and additive rating, GL-5
or GL-6 rated hypoid gear oils may also be EBU00155

used. Switches
Check the operation of the headlight switch,
engine stop switch and any other switches.
EBU00151
Repair as necessary for proper operation.
Throttle lever
Check to see that the throttle lever oper- EBU00499
ates correctly. It must open smoothly and Battery
spring back to idle position when released. Check fluid level and fill if necessary. Use
Repair as necessary for proper operation. only distilled water if refilling is necessary.
(See pages 8-28 ~ 8-30.)
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 EBU00157

Tires
2. The tires should be set to the rec-
WARNING ommended pressure:
● Recommended tire pressure
POTENTIAL HAZARD
Front 20 kPa (0.20 kgf/cm2, 2.9 psi)
Operating this ATV with improper tires,
or with improper or uneven tire pressure. Rear 25 kPa (0.25 kgf/cm2, 3.6 psi)
● Check and adjust tire pressures when
WHAT CAN HAPPEN
Use of improper tires on this ATV, or op- the tires are cold.
eration of this ATV with improper or un- ● Tire pressures must be equal on both

even tire pressure, may cause loss of sides.

control, increasing your risk of accident. 3. Tire pressure below the minimum
HOW TO AVOID THE HAZARD specified could cause the tire to dis-
1. The tires listed below have been ap- lodge from the rim under severe
proved by Yamaha Motor Co., Ltd. riding conditions.
for this model. Other tire combina- The following are minimums:
tions are not recommended. Front 17 kPa (0.17 kgf/cm2, 2.5 psi)
ACE-01EACE-01E

Manufacturer Size Type Rear 22 kPa (0.22 kgf/cm2, 3.2 psi)

CARLISLE AT22 × 7–10 TRAIL WOLF
Front DUNLOP AT22 × 7–10 KT 701
CHENG SHIN AT22 × 7–10 M 905
CARLISLE AT22 × 10–10 TRAIL WOLF
Rear DUNLOP AT22 × 10–10 KT 705
CHENG SHIN AT22 × 10–10 M 906

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 4. Use no more than the following
pressures when seating the tire
beads.
Front 250 kPa (2.5 kgf/cm2, 36 psi)
Rear 250 kPa (2.5 kgf/cm2, 36 psi)
Higher pressures may cause the tire
to burst. Inflate the tires very slowly
and carefully. Fast inflation could
cause the tire to burst.

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 EBU00159

How to measure tire pressure

Use the low-pressure tire gauge.

NOTE:
The low-pressure tire gauge is included as
standard equipment. Make two measure-
ments of the tire pressure and use the sec-
ond reading. Dust or dirt in the gauge
could cause the first reading to be incor-
rect.
1. Low-pressure tire gauge
Set pressure with tires cold.
Set tire pressures to the following specifi-
cations:
ACE-02EACE-02E
Recommended
Minimum Maximum
pressure
20 kPa 17 kPa 23 kPa
Front (0.20 kgf/cm2, (0.17 kgf/cm2, (0.23 kgf/cm2,
2.9 psi) 2.5 psi) 3.3 psi)
25 kPa 22 kPa 28 kPa
Rear (0.25 kgf/cm2, (0.22 kgf/cm2, (0.28 kgf/cm2,
3.6 psi) 3.2 psi) 4.0 psi)

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 EBU00160

Tire wear limit

When the tire groove decreases to 3 mm
(0.12 in) due to wear, replace the tire.

a. 3 mm (0.12 in)

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 EBU00161 EBU00163

OPERATION Starting a cold engine

WARNING
WARNING
Indicates a potential hazard that could POTENTIAL HAZARD
result in serious injury or death. Freezing control cables in cold weather.
WHAT CAN HAPPEN
You could be unable to control the ATV,
WARNING which could lead to an accident or colli-
POTENTIAL HAZARD sion.
Operating ATV without being familiar HOW TO AVOID THE HAZARD
with all controls. When riding in cold weather, always
WHAT CAN HAPPEN make sure all control cables work
Loss of control, which could cause an smoothly before you begin riding.
accident or injury.
1. Set the parking brake.
HOW TO AVOID THE HAZARD 2. Turn the fuel cock to “ON”.
Read the Owner’s Manual carefully. If
3. Turn the main switch to “ON” and the
there is a control or function you do not
engine stop switch to “RUN”.
understand, ask your Yamaha dealer.
4. Shift the transmission into neutral.

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 NOTE: Position 3 : Cold engine start-
● When the transmission is in neutral, ambient temperature above
25 ˚C (80 ˚F) and warm engine 6
the neutral indicator light should come
on. If the light does not come on, ask a start position. 6
Yamaha dealer to inspect it. 6
● The engine can be started in any gear
6
if the rear brake lever is applied. How-
ever, it is recommended to shift into 6
neutral before starting the engine. 6
5. Use the starter (choke) in reference to 7
the figure:
8
Position 1 : Cold engine start-
ambient temperature below 9
5 ˚C (40 ˚F). 60
Position 2 : Cold engine start- 1. Fully open 2. Half open
3. Closed a. Starter (choke) 66
ambient temperature at 0 ˚C
(30 ˚F) ~ 30 ˚C (90˚ F) and 6. Completely close the throttle lever and 66
warming up position. start the engine by pushing the start
66
switch.
66

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 NOTE:
CAUTION:
● If the engine fails to start, release the
start switch, then push the start switch See the “Engine break-in” section prior to
again. Pause a few seconds before the operating engine for the first time.
next attempt. Each cranking should be
as short as possible to preserve bat- EBU00180
tery energy. Do not crank the engine Starting a warm engine
more than 10 seconds on each at- To start a warm engine, refer to the “Start-
tempt. ing a cold engine” section. The starter
● If the battery is discharged, pull the re-
(choke) should not be used. The throttle
coil starter to start the engine. should be opened slightly.
7. If the engine is started at position 1,
EBU00182
the starter (choke) should be returned
Warming up
to position 2 (half-open) to warm up
To get maximum engine life, always warm
the engine. If the engine is started at
up the engine before starting off. Never ac-
position 2, keep it at this position to
celerate hard with a cold engine! To see
warm up the engine.
whether or not the engine is warm, check if
8. Continue warming up the engine until
it responds to the throttle normally with
it idles smoothly and return the starter
the starter (choke) turned off.
(choke) to position 3 (closed) before
riding.

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 EBU00185

Drive select lever operation and reverse

driving

CAUTION:
Before shifting, stop the machine and re-
turn the throttle lever to its closed posi-
tion. Otherwise the transmission may be
damaged.

NOTE:
1. Drive select lever 2. Lock release button
When shifting into reverse, the transmis- a. Forward b. Reverse
sion must be in first gear.
NOTE:
1. Bring the machine to a complete stop When in reverse, the reverse indicator light
and return the throttle lever to the should be on. If the light does not come on,
closed position. ask a Yamaha dealer to inspect the
2. Apply the rear brake pedal. machine.
3. Shift the transmission into first gear.
5. Check behind you for people or obsta-
4. While pulling the lock release button,
cles, then release the rear brake pedal.
move the drive select lever toward the
6. Open the throttle lever gradually and
rear until it completely stops.
continue to watch to the rear while
backing.
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 EBU00201

Shifting
WARNING
This model has a 5-speed forward and
POTENTIAL HAZARD 1-speed reverse transmission with centrif-
Improperly operating in reverse. ugal automatic clutch. The transmission al-
WHAT CAN HAPPEN lows you to control the amount of power
You could hit an obstacle or person be- you have available at a given speed or for
hind you, resulting in serious injury. starting accelerating, climbing, etc. To shift
HOW TO AVOID THE HAZARD into neutral, return the throttle lever to its
When you shift into reverse, make sure original position and repeatedly depress
there are no obstacles or people behind the shift pedal until it stops.
you. When it is safe to proceed, go
slowly.

1. Shift pedal N. Neutral position

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 4. Once the machine has attained ade-
CAUTION:
quate speed, release the throttle lever.
Do not coast for long periods with the en- 5. Shift into second gear and release the
gine off, and do not tow the machine a shift pedal.
long distance. Even with gears in neutral, 6. Open the throttle gradually.
the transmission is only properly lubricat- 7. Follow the same procedure when
ed when the engine is running. Inadequate shifting to the next higher gear.
lubrication may damage the transmission.
WARNING
POTENTIAL HAZARD
EBU00205
Opening the throttle before releasing
To start out and accelerate:
the shift pedal.
1. Release the throttle lever.
WHAT CAN HAPPEN
CAUTION: The machine could wheelie. This would
Always close the throttle while shifting increase the chance of an accident, in-
gears. Otherwise, damage to the engine cluding overturn.
and drive train may result. HOW TO AVOID THE HAZARD
Release the shift pedal before opening
2. Shift into first gear and release the the throttle. Open the throttle gradually.
shift pedal.
3. Open the throttle gradually.

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 EBU00207 EBU00209

To decelerate: Engine break-in

When slowing down or stopping, release There is never a more important period in
the throttle and apply the brakes smoothly the life of your machine than the period be-
and evenly. As you slow down, shift to a tween zero and 20 hours.
lower gear. Be sure that the engine has suf- For this reason, we ask that you carefully
ficiently slowed before engaging a lower read the following material. Because the
gear. Improper use of the brakes or shifting engine is brand new, you must not put an
can cause the tires to lose traction, reduc- excessive load on it for the first several
ing control and increasing the possibility of hours of running. During the first 20 hours,
an accident. the various parts in the engine wear and
WARNING polish themselves to the correct operating
clearances.
POTENTIAL HAZARD During this period, prolonged full throttle
Engaging a lower gear when the engine operation or any condition which might re-
speed is too high. sult in excessive engine heating must be
WHAT CAN HAPPEN avoided. However, momentary (2 ~ 3 sec-
The wheels could stop rotating. This onds maximum) full throttle operation un-
could cause loss of control, an accident der load does not harm the engine. Each
and injury. It could also cause engine or full throttle acceleration sequence should
drive train damage. be followed with a substantial rest period
HOW TO AVOID THE HAZARD for the engine by cruising at lower r/min so
Make sure the engine has sufficiently the engine can rid itself of the temporary
slowed before shifting to a lower gear. build up of heat.
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 EBU00211

If any abnormality is noticed during this Parking

period, consult a Yamaha dealer. When parking, stop the engine and shift
1. 0 ~ 10 hours: into neutral. Turn the fuel cock to “OFF”
Avoid continuous operation above and apply the parking brake.
half throttle. Allow a cooling off period
of five to ten minutes after every hour
of operation. Vary the speed of the
machine from time to time. Do not op-
erate it at one set throttle position.
2. 10 ~ 20 hours:
Avoid prolonged operation above
3/4 throttle. Rev the machine freely
through the gears but do not use full
throttle at any time.
3. After break-in: 1. Lock plate

Avoid prolonged full throttle opera-

tion. Vary speeds occasionally.

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 EBU00219

Parking on a slope 1. Bring the machine to a stop by apply-

ing the brakes in low gear.
WARNING
2. Stop the engine.
POTENTIAL HAZARD 3. With the rear brake lever and pedal ap-
Parking on a hill or other incline. plied, apply the parking brake and
WHAT CAN HAPPEN slowly release the rear brake pedal.
The ATV could roll out of control, in-
creasing the chance of an accident.
HOW TO AVOID THE HAZARD
Avoid parking on hills or other inclines.
If you must park on an incline, put the
machine in low gear, apply the parking
brake, and block the front and rear
wheels with rocks or other objects.
Do not park the ATV at all on hills that
are so steep you could not walk up
them easily.

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 EBU00221

Accessories and loading ● Accessories should be rigidly and se-

curely mounted. An accessory which
EBU00222 can shift position or come off while you
Accessories are riding could affect your ability to
Accessories can affect the handling and control the ATV.
control of your ATV. Keep the following in ● Do not mount an accessory where it
mind when considering an accessory or could interfere with your ability to con-
operating an ATV which has accessories. trol the ATV. Examples include (but are
● Choose only accessories designed for not limited to) a heavy or bulky object at-
your ATV. Your Yamaha dealer has a va- tached to the handlebars which could
riety of genuine Yamaha accessories. make steering difficult, an accessory that
Other accessories may also be available limits your ability to move around on the
on the market. However, it is not possi- seat, or one that limits your view.
ble for Yamaha to test all non-Yamaha ● Use extra caution when riding an ATV
accessories, nor have any control over with accessories. The ATV may handle dif-
the quality or suitability of them. Choose ferently than it does without accessories.
a genuine Yamaha accessory, or one
that is equivalent in design and quality.

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 EBU00233

Loading ● Do not exceed the maximum tongue

Cargo or a trailer can change the stability weight. You can measure tongue weight
and handling of an ATV. with a bathroom scale. Put the tongue of
You must use common sense and good the loaded trailer on the scale with the
judgement when carrying cargo or towing tongue at hitch height. Adjust the load in
a trailer. Keep the following points in mind: the trailer, if necessary, to reduce the
● Never exceed the weight limits shown. weight on hitch.
An overloaded ATV can be unstable. ● If you are carrying cargo and towing a
trailer, include the tongue weight in the
MAXIMUM LOADING LIMIT maximum vehicle load limit.
● Vehicle loading limit (total weight of car-
● Load cargo on the carrier as close to the
go, rider and accessories, and tongue center of the vehicle as possible. Put car-
weight): 165 kg (364 lb) go at the front of the rear carrier. Center
● Front carrier: 30 kg (66 lb) the load from side to side.
● Rear carrier: 45 kg (99 lb)
● Tie down cargo securely to the carriers.
● Storage box: 2 kg (4.4 lb) Make sure cargo in the trailer cannot
● Trailer hitch: move around. A shifting load can cause
Pulling load (total weight of trailer and an accident.
cargo): 330 kg (728 lb) ● Make sure the load does not interfere
Tongue weight (vertical weight on trail- with controls or your ability to see where
er hitch point): 15 kg (33 lb) you are going.

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 ● Ride more slowly than you would with-
WARNING
out a load. The more weight you carry,
the slower you should go. Although con- POTENTIAL HAZARD
ditions vary, it is good practice not to ex- Overloading this ATV or carrying or
ceed 2nd gear whenever you are towing cargo improperly.
carrying heavier loads or when towing a WHAT CAN HAPPEN
trailer. Could cause changes in vehicle handling
● Allow more braking distance. A heavier which could lead to an accident.
vehicle takes longer to stop. HOW TO AVOID THE HAZARD
● Avoid making sharp turns unless at very Never exceed the stated load capacity
slow speeds. for this ATV. Cargo should be properly
● Avoid hills and rough terrain. Choose distributed and securely attached. Re-
terrain carefully. Added weight affects duce speed when carrying cargo or pull-
the stability and handling of the ATV. ing a trailer. Allow greater distance for
braking.

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 E
EBU00543

WARNING
Indicates a potential hazard that could
result in serious injury or death.

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 RIDING
Riding YOUR ATV
Your ATV

E
Riding
7
Your
ATV

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 7-2

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 WARNING
Indicates a potential hazard that could
result in serious injury or death.

GETTING TO KNOW YOUR ATV

This ATV is mainly for utility use, but may safely. Before you begin to ride, be sure
also be used for recreation. This section, you have read this Owner’s Manual com-
Riding your ATV, provides general ATV pletely and understand the operation of
riding instructions for recreational riding. the controls. Pay particular attention to the
The skills and techniques described in this safety information on pages 2-1 ~ 2-6.
section, however, are appropriate for all Please also read all caution and warning la-
types of riding. Riding your ATV requires bels on your ATV.
special skills acquired through practice
over a period of time. Take the time to
learn the basic techniques well before at-
tempting more difficult maneuvers.
Riding your new ATV can be a very enjoy-
able activity, providing you with hours of
pleasure. But it is essential to familiarize
yourself with the operation of the ATV to
achieve the skill necessary to enjoy riding

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 RIDE WITH CARE AND GOOD
JUDGEMENT HOW TO AVOID THE HAZARD
Beginning and inexperienced operators
Get training if you are inexperienced. should complete the certified training
Beginners should get training from a certi- course offered by Yamaha. They should
fied instructor. then regularly practice the skills learned
Become familiar with this ATV at slow in the course and the operating tech-
speeds first, even if you are an experienced niques described in this Owner’s Manu-
operator. Do not attempt to operate at al.
maximum performance until you are total- For more information about the training
ly familiar with the machine’s handling and course, contact an authorized ATV deal-
performance characteristics. er or call 1-800-447-4700.
WARNING Riding your machine requires skills ac-
POTENTIAL HAZARD quired through practice over a period of
Operating this ATV without proper in- time.
struction. Take the time to learn the basic techniques
well before attempting more difficult
WHAT CAN HAPPEN
maneuvers.
The risk of an accident is greatly in-
creased if the operator does not know
how to operate the ATV properly in dif-
ferent situations and on different types
of terrain.
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 Not recommended for children under
16 years of age.
WARNING
POTENTIAL HAZARD
Failure to follow the age recommenda-
tions for this ATV.
WHAT CAN HAPPEN
Use by children of ATVs that are not rec-
ommended for their age can lead to se-
vere injury or death of the child.
HOW TO AVOID THE HAZARD
A child under 16 should never operate
an ATV with engine size greater than
90cc.

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 This machine is designed to carry operator
and cargo only - passengers prohibited.
WARNING
POTENTIAL HAZARD
Carrying a passenger on this ATV.
WHAT CAN HAPPEN
Greatly reduces your ability to balance
and control this ATV. Could cause an ac-
cident, resulting in harm to you and/or
your passenger.
HOW TO AVOID THE HAZARD
Never carry a passenger. The long seat
is to allow the operator to shift position
as needed during operation. It is not for
carrying passengers.

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 Apparel
Operating without protective clothing
WARNING increases your chances of severe injury
in the event of an accident.
POTENTIAL HAZARD
Operating this ATV without wearing an HOW TO AVOID THE HAZARD
approved motorcycle helmet, eye pro- Always wear an approved motorcycle
tection and protective clothing. helmet that fits properly.
You should also wear:
WHAT CAN HAPPEN
eye protection
Operating without
(goggles or face shield)
an approved motor-
gloves
cycle helmet increas-
boots
es your chances of a
long-sleeved shirt or jacket
severe head injury or
long pants
death in the event of
an accident.
Operating without
eye protection can
result in an accident and increases your
chances of a severe injury in the event of
an accident.

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 Do not operate after consuming alcohol or
WARNING
drugs.
Operator’s performance capability is re- POTENTIAL HAZARD
duced by the influence of alcohol or drugs. Operating this ATV after consuming al-
cohol or drugs.
WHAT CAN HAPPEN
Could seriously affect your judgment.
Could cause you to react more slowly.
Could affect your balance and percep-
tion.
Could result in an accident.
HOW TO AVOID THE HAZARD
Never consume alcohol or drugs before
or while driving this ATV.

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 Pre-operation checks
WARNING
Always perform the pre-operation checks
listed on page 5-1 before riding for safety POTENTIAL HAZARD
and proper care of the machine. Operating this ATV with improper tires,
or with improper or uneven tire pres-
WARNING sure.
POTENTIAL HAZARD WHAT CAN HAPPEN
Failure to inspect the ATV before oper- Use of improper tires on this ATV, or op-
ating. eration of this ATV with improper or un-
Failure to properly maintain the ATV. even tire pressure, may cause loss of
WHAT CAN HAPPEN control, increasing your risk of an acci-
Increases the possibility of an accident dent.
or equipment damage. HOW TO AVOID THE HAZARD
HOW TO AVOID THE HAZARD Always use the size and type tires spec-
Always inspect your ATV each time you ified in the Owner’s Manual for this ve-
use it to make sure the ATV is in safe op- hicle on pages 5-9 ~ 5-10.
erating condition. Always maintain proper tire pressure as
Always follow the inspection and main- described in the Owner’s Manual on
tenance procedures and schedules de- page 5-11.
scribed in the Owner’s Manual.

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 Speed limiter
WARNING For riders inexperienced with this model,
Indicates a potential hazard that could this model is equipped with a speed limiter
result in serious injury or death. in the throttle lever housing. The speed
limiter limits the power and top speed of
Do not operate at speeds too fast for your the machine. Turning the screw in decreas-
skills or the conditions. es top speed, and turning it out increases
WARNING top speed.

POTENTIAL HAZARD
Operating this ATV at speeds too fast
for your skills or the conditions.
WHAT CAN HAPPEN
Increases your chances of losing control
of the ATV, which can result in an acci-
dent.
HOW TO AVOID THE HAZARD
Always go at a speed that is proper for
the terrain, visibility and operating con- 1. Locknut 2. Adjuster

ditions, and your experience.

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 Loading and accessories
WARNING
Use extra caution when riding the machine
with additional loads, such as accessories POTENTIAL HAZARD
or cargo. The machine’s handling may be Overloading this ATV or carrying or
adversely affected. Reduce your speed towing cargo improperly.
when adding additional loads. WHAT CAN HAPPEN
Could cause changes in vehicle handling
MAXIMUM LOADING LIMIT which could lead to an accident.
● Vehicle loading limit (total weight of car-
HOW TO AVOID THE HAZARD
go, rider and accessories, and tongue
Never exceed the stated load capacity
weight): 165 kg (364 lb)
for this ATV.
● Front carrier: 30 kg (66 lb)
Cargo should be properly distributed
● Rear carrier: 45 kg (99 lb)
and securely attached.
● Storage box: 2 kg (4.4 lb)
Reduce speed when carrying cargo or
● Trailer hitch:
pulling a trailer. Allow greater distance
Pulling load (total weight of trailer and for braking.
cargo): 330 kg (728 lb) Always follow the instructions in your
Tongue weight (vertical weight on trail- Owner’s Manual for carrying cargo or
er hitch point): 15 kg (33 lb) pulling a trailer.

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 During operation
WARNING
Always keep your feet on the footboards
during operation. Otherwise your feet may POTENTIAL HAZARD
contact the rear wheels. Removing hands from handlebars or
feet from footboards during operation.
WHAT CAN HAPPEN
Removing even one hand or foot can re-
duce your ability to control the ATV or
could cause you to lose your balance
and fall off of the ATV. If you remove a
foot from a footboard, your foot or leg
may come into contact with the rear
wheels, which could injure you or cause
an accident.
HOW TO AVOID THE HAZARD
Always keep both hands on the handle-
bars and both feet on the footboards of
your ATV during operation.

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 Avoid wheelies and jumping. You may
lose control of the machine or overturn.
WARNING
POTENTIAL HAZARD
Attempting wheelies, jumps, and other
stunts.
WHAT CAN HAPPEN
Increases the chance of an accident, in-
cluding an overturn.
HOW TO AVOID THE HAZARD
Never attempt stunts, such as wheelies
or jumps. Don’t try to show off.

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 Modifications
WARNING
POTENTIAL HAZARD
Operating this ATV with improper mod-
ifications.
WHAT CAN HAPPEN
Improper installation of accessories or
modification of this vehicle may cause
changes in handling which in some situ-
ations could lead to an accident.
HOW TO AVOID THE HAZARD
Never modify this ATV through improp-
er installation or use of accessories. All
parts and accessories added to this ve-
hicle should be genuine Yamaha or
equivalent components designed for
use on this ATV and should be installed
and used according to instructions. If
you have questions, consult an autho-
rized ATV dealer.

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 Exhaust system
The exhaust system on the machine is very
hot during and following operation. To
prevent burns, avoid touching the exhaust
system. Park the machine in a place where
pedestrians or children are not likely to
touch it.
WARNING
POTENTIAL HAZARD
Hot exhaust system.
WHAT CAN HAPPEN
Someone touching the exhaust system
during or after operation could be
burned.
HOW TO AVOID THE HAZARD
Do not touch the hot exhaust system.
Do not park the machine in a place
where others might be likely to touch it.

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 BE CAREFUL WHERE YOU RIDE
This machine is designed for off-road use
only. Riding on paved surfaces can cause
loss of control.
WARNING
POTENTIAL HAZARD
Operating this ATV on paved surfaces.
WHAT CAN HAPPEN
ATVs are designed for off-road use only.
Paved surfaces may seriously affect
handling and control of the ATV, and
may cause the vehicle to go out of con-
trol.
HOW TO AVOID THE HAZARD
Always avoid paved surfaces, including
sidewalks, driveways, parking lots and
streets.

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 Do not ride on any public road, street, or
highway.
Riding on public roads can result in colli-
sions with other vehicles.
WARNING
POTENTIAL HAZARD
Operating this ATV on public streets,
roads or highways.
WHAT CAN HAPPEN
You can collide with another vehicle.
HOW TO AVOID THE HAZARD
Never operate this ATV on any public
street, road or highway, even a dirt or
gravel one.
In many states it is illegal to operate
ATVs on public streets, roads and high-
ways.

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 Know the terrain where you ride. Ride cau-
tiously in unfamiliar areas.
Stay alert for holes, rocks, or roots in the
terrain, and other hidden hazards which
may cause the machine to upset.
WARNING
POTENTIAL HAZARD
Failure to use extra care when operating
this ATV on unfamiliar terrain.
WHAT CAN HAPPEN
You can come upon hidden rocks,
bumps, or holes, without enough time
to react.
Could result in the ATV overturning or
going out of control.
HOW TO AVOID THE HAZARD
Go slowly and be extra careful when op-
erating on unfamiliar terrain.
Always be alert to changing terrain con-
ditions when operating the ATV.

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 WARNING
POTENTIAL HAZARD
Failure to use extra care when operating
on excessively rough, slippery or loose
terrain.
WHAT CAN HAPPEN
Could cause loss of traction or vehicle
control, which could result in an acci-
dent, including an overturn.
HOW TO AVOID THE HAZARD
Do not operate on excessively rough,
slippery or loose terrain until you have
learned and practiced the skills neces-
sary to control the ATV on such terrain.
Always be especially cautious on these
kinds of terrain.

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 When riding in an area where you might
not easily be seen, such as desert terrain, WHAT CAN HAPPEN
mount a caution flag on the machine. DO You could be in a collision. You could be
NOT use the flag pole bracket as a trailer injured.
hitch. HOW TO AVOID THE HAZARD
Always mount a caution flag on the ma-
chine to make you more visible. Watch
carefully for other vehicles.

Do not ride in areas posted “no trespass-

ing”. Do not ride on private property with-
out getting permission.

WARNING
POTENTIAL HAZARD
Operating in areas where you might not
be seen by other off-road vehicles.
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 Select a large, flat area off-road to become With the engine idling, lift the shift pedal to
familiar with your ATV. Make sure that this the 1st gear position and then release the
area is free of obstacles and other riders. parking brake. Apply the throttle slowly
You should practice control of the throttle, and smoothly. The centrifugal clutch will
brakes, shifting procedures, and turning engage and you will start to accelerate.
techniques in this area before trying more Once the ATV has attained adequate
difficult terrain. Always avoid riding on speed, release the throttle and lift the shift
paved surfaces: the ATV is designed for pedal to the 2nd gear position. Release the
off-road use only, and handling maneu- shift pedal and apply the throttle smoothly.
vers are more difficult to perform on pave- Use this same procedure as you move into
ment. the higher gears. Be sure to coordinate the
use of the throttle and shift pedal properly.
Set the parking brake and follow the in- If the throttle is applied too abruptly or if
struction on page 6-1 to start the engine. the throttle is not released during shifting,
Once it has warmed up you are ready to or if the shift pedal is not released before
begin riding your ATV. As you get on the applying the throttle, the front wheels may
ATV, be sure not to accidentally move the lift off the ground resulting in a loss of di-
shift pedal. Remember that the engine and rectional control. Avoid higher speeds until
exhaust pipe will be hot when riding and you are thoroughly familiar with the opera-
afterwards; do not allow skin or clothing to tion of your ATV.
come in contact with these components.

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 CAUTION: WARNING
Do not shift gears without releasing the POTENTIAL HAZARD
throttle. Damage to the engine or drive Engaging a lower gear when the engine
train may occur. speed is too high.
WHAT CAN HAPPEN
When slowing down or stopping, release
The wheels could stop rotating. This
the throttle and apply the brakes smoothly
could cause loss of control, an accident
and evenly. As you slow down, shift to a
and injury. It could also cause engine or
lower gear. Be sure that the engine has suf-
drive train damage.
ficiently slowed before engaging a lower
gear. Improper use of the brakes or shifting HOW TO AVOID THE HAZARD
can cause the tires to lose traction, reduc- Make sure the engine has sufficiently
ing control and increasing the possibility of slowed before shifting to a lower gear.
an accident.

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 TURNING YOUR ATV
To achieve maximum traction while riding HOW TO AVOID THE HAZARD
off-road, the two rear wheels are mounted Always follow proper procedures for
solidly on one axle and turn together at the turning as described in this Owner’s
same speed. Therefore, unless the wheel Manual.
on the inside of the turn is allowed to slip Practice turning at low speeds before
or lose some traction, the ATV will resist attempting to turn at faster speeds. Do
turning. A special turning technique must not turn at speeds too fast for your skills
be used to allow the ATV to make turns or the conditions.
quickly and easily. It is essential that this As you approach a curve, slow down and
skill be learned first at low speed. begin to turn the handlebars in the desired
WARNING direction. As you do so, put your weight on
the footboard to the outside of the turn
POTENTIAL HAZARD
(opposite your desired direction) and lean
Turning improperly.
your upper body into the turn. Use the
WHAT CAN HAPPEN throttle to maintain an even speed through
ATV could go out of control, causing a the turn. This maneuver will let the wheel
collision or overturn. on the inside of the turn slip slightly, allow-
ing the ATV to make the turn properly.

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 Once you have learned this technique you
should be able to perform it at higher
speeds or in tighter curves.

Improper riding procedures such as abrupt

throttle changes, excessive braking, incor-
rect body movements, or too much speed
for the sharpness of the turn may cause
the ATV to tip. If the ATV begins to tip over
to the outside while negotiating a turn,
lean more to the inside. It may also be nec-
essary to gradually let off on the throttle
and steer to the outside of the turn to avoid
This procedure should be practiced at slow tipping over.
speed many times in a large off-road area Remember: Avoid higher speeds until you
with no obstacles. If an incorrect technique are thoroughly familiar with the operation
is used, your ATV may continue to go of your ATV.
straight. If the ATV doesn’t turn, come to a
stop and then practice the procedure
again. If the riding surface is slippery or
loose, it may help to position more of your
weight over the front wheels by moving
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 CLIMBING UPHILL
Use proper riding techniques to avoid ve- HOW TO AVOID THE HAZARD
hicle overturns on hills. Be sure that you Never operate the ATV on hills too
can maneuver your ATV well on flat steep for the ATV or for your abilities.
ground before attempting any incline and Practice on smaller hills before attempt-
then practice riding first on gentle slopes. ing large hills.
Try more difficult climbs only after you It is important when climbing a hill to make
have developed your skill. In all cases sure that your weight is transferred for-
avoid inclines with slippery or loose sur- ward on the ATV. This can be accom-
faces, or obstacles that might cause you to plished by leaning forward and, on steeper
lose control. inclines, standing on the footboards and
WARNING leaning forward over the handlebars.
POTENTIAL HAZARD
Operating on excessively steep hills.
WHAT CAN HAPPEN
The vehicle can overturn more easily on
extremely steep hills than on level sur-
faces or small hills.

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 WARNING An obstacle, a sharp drop, or another
POTENTIAL HAZARD vehicle or person could be on the other
Climbing hills improperly. side of the hill.
WHAT CAN HAPPEN
Could cause loss of control or cause the
ATV to overturn.
HOW TO AVOID THE HAZARD
Always follow proper procedures for
climbing hills as described in this Own-
er’s Manual.
Always check the terrain carefully be-
fore you start up any hill.
Never climb hills with excessively slip-
pery or loose surfaces.
Shift your weight forward.
Never open the throttle suddenly or
make sudden gear changes.
The ATV could flip over backwards.
Never go over the top of any hill at high
speed.

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 If you are climbing a hill and you find that
you have not properly judged your ability When crossing the side of a hill:
to make it to the top, you should turn the Always follow proper procedures as de-
ATV around while you still have forward scribed in the Owner’s Manual.
motion (provided you have the room to do Avoid hills with excessively slippery or
so) and go down the hill. loose surfaces.
Shift your weight to the uphill side of
WARNING the ATV.
POTENTIAL HAZARD
Improperly crossing hills or turning on
hills.
WHAT CAN HAPPEN
Could cause loss of control or cause
ATV to overturn.
HOW TO AVOID THE HAZARD
Never attempt to turn the ATV around
on any hill until you have mastered the
turning technique as described in the
Owner’s Manual on level ground. Be
very careful when turning on any hill.
Avoid crossing the side of a steep hill if
possible.
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 If your ATV has stalled or stopped and you
WARNING
believe you can continue up the hill, restart
carefully to make sure you do not lift the POTENTIAL HAZARD
front wheels which could cause you to lose Stalling, rolling backwards or improper-
control. If you are unable to continue up ly dismounting while climbing a hill.
the hill, dismount the ATV on the uphill WHAT CAN HAPPEN
side. Physically turn the ATV around and Could result in ATV overturning.
then descend the hill. HOW TO AVOID THE HAZARD
Use proper gear and maintain steady
If you start to roll backwards, DO NOT use speed when climbing a hill.
the rear brake to stop or try to put the ATV If you lose all forward speed:
in gear. The ATV could easily tip over back- Keep weight uphill.
wards. Instead, dismount the ATV immedi- Apply the brakes.
ately on the uphill side. Lock parking brake, after you are
stopped.
If you begin rolling backwards:
Keep weight uphill.
Never apply the rear brake while roll-
ing backwards.
Apply the front brake.
When fully stopped, apply rear brake
as well, and then lock parking brake.
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 Dismount on uphill side or to a side if
pointed straight uphill. Turn the ATV
around and remount, following the pro-
cedure described in the Owner’s Manu-
al.

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 RIDING DOWNHILL
WARNING
When riding your ATV downhill, shift your
weight as far to the rear and uphill side of POTENTIAL HAZARD
the ATV as possible. Move back on the seat Going down a hill improperly.
and sit with your arms straight. Choose a WHAT CAN HAPPEN
low gear which will allow the engine com- Could cause loss of control or cause
pression to do most of the braking for you. ATV to overturn.
Improper braking may cause a loss of trac- HOW TO AVOID THE HAZARD
tion. Always follow proper procedures for
Use caution while descending a hill with going down hills as described in this
loose or slippery surfaces. Braking ability Owner’s Manual. Note: a special tech-
and traction may be adversely affected by nique is required when braking as you
these surfaces. Improper braking may also go down a hill.
cause a loss of traction. Always check the terrain carefully be-
fore you start down any hill.
Whenever possible, ride your ATV straight Shift your weight backward.
downhill. Avoid sharp angles which could Never go down a hill at high speed.
allow the ATV to tip or roll over. Carefully Avoid going down a hill at an angle that
choose your path and ride no faster than would cause the vehicle to lean sharply
you will be able to react to obstacles which to one side. Go straight down the hill
may appear. where possible.

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 7-31

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 CROSSING A SLOPE If your ATV does begin to tip over, gradual-
Traversing a sloping surface on your ATV ly steer in the downhill direction if there
requires you to properly position your are no obstacles in your path. As you re-
weight to maintain proper balance. Be sure gain proper balance, gradually steer again
that you have learned the basic riding skills in the direction you wish to travel.
on flat ground before attempting to cross a
WARNING
sloping surface. Avoid slopes with slippery
surfaces or rough terrain that may upset POTENTIAL HAZARD
your balance. Improperly crossing hills or turning on
hills.
As you travel across a slope, lean your WHAT CAN HAPPEN
body in the uphill direction. It may be nec- Could cause loss of control or cause
essary to correct the steering when riding ATV to overturn.
on loose surfaces by pointing the front HOW TO AVOID THE HAZARD
wheels slightly uphill. When riding on Never attempt to turn the ATV around
slopes be sure not to make sharp turns ei- on any hill until you have mastered the
ther up or down hill. turning technique as described in the
Owner’s Manual on level ground. Be
very careful when turning on any hill.
Avoid crossing the side of a steep hill if
possible.

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 When crossing the side of a hill:
Always follow proper procedures as de-
scribed in the Owner’s Manual.
Avoid hills with excessively slippery or
loose surfaces.
Shift your weight to the uphill side of
the ATV.

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 CROSSING THROUGH SHALLOW WATER
Remember that wet brakes may have
The ATV can be used to cross slow mov-
reduced stopping ability. Test your
ing, shallow water of up to a maximum of
brakes after leaving water. If necessary,
35 cm (14 inches) in depth. Before entering
apply them several times to let friction
the water, choose your path carefully. En-
dry out the linings.
ter where there is no sharp drop off, and
avoid rocks or other obstacles which may
be slippery or upset the ATV. Drive slowly
and carefully.
WARNING
POTENTIAL HAZARD
Operating this ATV through deep or fast
flowing water.
WHAT CAN HAPPEN
Tires may float, causing loss of traction
and loss of control, which could lead to
an accident.
HOW TO AVOID THE HAZARD
Never operate this ATV in fast flowing
water or in water deeper than that spec-
ified in your Owner’s Manual.
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 Test your brakes after leaving the water.
Do not continue to ride your ATV without CAUTION:
verifying that you have regained proper After riding your ATV in water, be sure to
braking ability. drain the trapped water by removing the
check hose at the bottom of the air filter
case. Wash the ATV in fresh water if it has
been operated in salt water or muddy con-
ditions.

1. Check hose

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 RIDING OVER ROUGH TERRAIN
WARNING
Riding over rough terrain should be done
with caution. Look out for obstacles which POTENTIAL HAZARD
could cause damage to the ATV or could Improperly operating over obstacles.
lead to an upset or accident. Be sure to WHAT CAN HAPPEN
keep your feet firmly mounted on the foot- Could cause loss of control or a colli-
boards at all times. Avoid jumping the ATV sion. Could cause the ATV to overturn.
as loss of control and damage to the ATV HOW TO AVOID THE HAZARD
may result. Before operating in a new area, check
for obstacles.
Never attempt to ride over large obsta-
cles, such as large rocks or fallen trees.
When you go over obstacles, always fol-
low proper procedures as described in
the Owner’s Manual.

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 SLIDING AND SKIDDING If the rear wheels of your ATV start to slide
Care should be used when riding on loose sideways, control can usually be regained
or slippery surfaces since the ATV may (if there is room to do so) by steering in the
slide. If unexpected and uncorrected, slid- direction of the slide. Applying the brakes
ing could lead to an accident. or accelerating is not recommended until
To reduce the tendency for the front you have corrected the slide.
wheels to slide in loose or slippery condi-
tions, positioning your weight over the
front wheels will sometimes help.

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 With practice, over a period of time, skill at
WARNING
controlled sliding can be developed. The
terrain should be chosen carefully before POTENTIAL HAZARD
attempting such maneuvers, since both Skidding or sliding improperly.
stability and control are reduced. Bear in WHAT CAN HAPPEN
mind that sliding maneuvers should al- You may lose control of this ATV. You
ways be avoided on extremely slippery may also regain traction unexpectedly,
surfaces such as ice, since all control may which may cause the ATV to overturn.
be lost. HOW TO AVOID THE HAZARD
Learn to safely control skidding or slid-
ing by practicing at low speeds and on
level, smooth terrain.
On extremely slippery surfaces, such as
ice, go slowly and be very cautious in or-
der to reduce the chance of skidding or
sliding out of control.

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 WHAT TO DO IF ... ● If your ATV starts to slide sideways:
This section is designed to be a reference Steer in the direction of the slide if you
guide only. Be sure to read each section on have the room.
riding techniques completely. Applying the brakes or accelerating is
not recommended until you have cor-
WHAT TO DO ... rected the slide. (See pages 7-37 ~ 7-38.)
● If your ATV doesn’t turn when you want ● If your ATV can’t make it up a hill you are
it to: trying to climb:
Bring the ATV to a stop and practice the Turn the ATV around if you still have for-
turning maneuvers again. Be sure you ward speed. If not, stop, dismount on
are putting your weight on the foot- the uphill side of the ATV and physically
board to the outside of the turn. Position turn the ATV around. If the ATV starts to
your weight over the front wheels for slip backwards DO NOT USE THE REAR
better control. (See pages 7-23 ~ 7-24.) BRAKE - the ATV may tip over on top of
● If your ATV begins to tip while turning: you. Dismount the ATV on the uphill
Lean more into the turn to regain bal- side. (See pages 7-25 ~ 7-29.)
ance. If necessary, gradually let off the
throttle and/or steer to the outside of the
turn. (See pages 7-23 ~ 7-24.)

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 ● If your ATV is traversing a sloping sur-
face:
Be sure to ride with your weight posi-
tioned towards the uphill side of the ATV
to maintain proper balance. If the ATV
starts to tip, steer down the hill (if there
are no obstacles in your way) to regain
balance. If you discover that the ATV is
going to tip over, dismount on the uphill
side. (See pages 7-32 ~ 7-33.)
● If your ATV encounters shallow water:
Ride slowly and carefully through slow
moving water, watching for obstacles.
Be sure to let water drain from the ATV
and CHECK YOUR BRAKES FOR PROP-
ER OPERATION when you come out of
the water. Do not continue to ride your
ATV until you have regained adequate
braking ability. (See pages 7-34 ~ 7-35.)

WARNING
Indicates a potential hazard that could
result in serious injury or death.
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 EBU00253

PERIODIC MAINTENANCE AND Have a Yamaha dealer perform service if

ADJUSTMENT you are not familiar with machine
Periodic inspection, adjustment, and lubri- service.
cation will keep your machine in the safest
and most efficient condition possible. EBU00259*

Safety is an obligation of the machine Owner’s manual and tool kit

owner. The most important points of ma- You are recommended to put this owner’s
chine inspection, adjustment, and lubrica- manual in the vinyl bag and always carry it
tion are explained on the following pages. under the seat as shown. Put the owner’s
tool kit and low-pressure tire gauge in the
WARNING
storage box.
POTENTIAL HAZARD
Servicing an engine while it is running.
WHAT CAN HAPPEN
Moving parts can catch clothing or parts
of the body, causing injury.
Electrical components can cause shocks
or can start fires.
HOW TO AVOID THE HAZARD
Turn off the engine when performing
maintenance unless otherwise specified.
1. Owner’s manual
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 WARNING
POTENTIAL HAZARD 8
Operating this ATV with improper mod- 8
ifications.
8
WHAT CAN HAPPEN
Improper installation of accessories or 8
1. Tool kit 2. Low-pressure tire gauge
modification of this vehicle may cause 8
changes in handling which in some situ-
The service information included in this 8
ations could lead to an accident.
manual is intended to provide you, the own-
HOW TO AVOID THE HAZARD 8
er, with the necessary information for com-
pleting your own preventive maintenance Never modify this ATV through improp- 8
and minor repairs. The tools provided in the er installation or use of accessories. All
9
Owner’s tool kit are sufficient for this pur- parts and accessories added to this ve-
hicle should be genuine Yamaha or 80
pose, except that a torque wrench is also
necessary to properly tighten nuts and bolts. equivalent components designed for 88
use on this ATV and should be installed
NOTE: 88
and used according to instructions. If
If you do not have a torque wrench avail- you have questions, consult an autho- 88
able during a service operation requiring rized Yamaha ATV dealer. 88
one, take your machine to a Yamaha deal-
er to check the torque settings and adjust
them as necessary.
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 EBU00261

PERIODIC MAINTENANCE/LUBRICATION
INITIAL EVERY
ITEM ROUTINE 1 3 6 6 1
month months months months year
• Check valve clearance.
Valves*
• Adjust if necessary.

E Spark plug
• Check condition.
• Adjust gap and clean.
• Replace if necessary.
• Clean. Every 20~40 hours
Air filter
• Replace if necessary. (more often in wet or dusty areas)
• Check idle speed/starter operation.
Carburetor*
• Adjust if necessary.
Cylinder head breather • Check breather hose for cracks or damage.
system* • Replace if necessary.
• Check for leakage.
Exhaust system* • Retighten if necessary.
• Replace gasket if necessary.
Spark arrester • Clean.
• Check fuel hose for cracks or damage.
Fuel line*
• Replace if necessary.
Engine oil • Replace (Warm engine before draining).
Engine oil filter • Clean.
Engine oil strainer • Clean.
• Check oil level/oil leakage.
Final gear oil
• Replace.
• Check operation.
Brakes*
• Adjust if necessary.
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 INITIAL EVERY
ITEM ROUTINE 1 3 6 6 1
month months months months year
• Check operation.
Clutch*
• Adjust if necessary.
• Check balance/damage/runout.
Wheels*
• Repair if necessary.

Wheel bearings*
•
•
Check bearing assembly for looseness/damage.
Replace if damaged. E
Front and rear • Check operation.
suspension* • Correct if necessary.
• Check operation.
• Correct if damaged.
Steering system*
• Check toe-in.
• Adjust if necessary.
Steering shaft* • Lubricate every 6 months.**
• Check all chassis fittings and fasteners.
Fittings and Fasteners*
• Correct if necessary.
• Check specific gravity.
Battery* • Check that the breather hose is working properly.
• Correct if necessary.
* It is recommended that these items be serviced by a Yamaha dealer.
** Lithium soap base grease

WARNING
Indicates a potential hazard that could
result in serious injury or death.

8-4

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 EBU00270*

Engine oil CAUTION:

Engine oil level measurement
Be sure no foreign material enters the
1. Place the machine on a level place.
crankcase.
2. Warm up the engine for several min-
utes and stop it. Wait at least ten min-
utes for the oil to drain back into the
crankcase before checking the oil
level.
NOTE:
Wait at least ten minutes until the oil level
settles before checking.

3. Remove the dipstick and wipe it off

with a clean rag. Insert the dipstick in
the filler hole without screwing it in. 1. Dipstick 2. Maximum level mark
3. Minimum level mark
4. Remove the dipstick and inspect the
oil level.
5. The oil level should be between the
maximum and minimum marks. If the
level is low, add oil to raise it to the
proper level.

8-5

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 Engine oil replacement and oil filter
element cleaning
1. Place the machine on a level place.
2. Warm up the engine for several min-
utes and stop it.
3. Place a container under the engine.
4. Remove the dipstick and drain plug to
drain the oil.

CAUTION:
1. Drain plug 2. O-ring
When removing the drain plug, the com- 3. Compression spring 4. Oil strainer
pression spring, oil strainer and O-ring will 5. Remove the oil filter cover and oil filter.
fall out. Take care not to lose these parts.

1. Oil filter cover 2. Oil filter 3. O-ring

8-6

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 6. Clean the oil strainer and oil filter with 10. Fill the engine with oil and install the
solvent. dipstick.
7. Inspect the O-ring and replace if
Recommended oil:
damaged.
See page 5-7.
8. Reinstall the oil filter, O-ring, oil filter
Oil quantity:
cover.
Periodic oil change:
9. Replace the oil strainer, compression
1.5 L (1.3 Imp qt, 1.6 US qt)
spring, O-ring and drain plug. Then,
With oil filter replacement:
tighten the drain plug and oil filter cov-
1.6 L (1.4 Imp qt, 1.7 US qt)
er bolts to the specified torques.
Total amount:
CAUTION: 1.8 L (1.6 Imp qt, 1.9 US qt)

Before reinstalling the drain plug, be sure

to install the O-ring, compression spring
CAUTION:
and oil strainer. Be sure no foreign material enters the
crankcase.
Tightening torque:
11. Warm up the engine for several min-
Drain plug (engine):
utes at idle speed. Check for oil leak-
43 Nm (4,3 m·kg, 31 ft·lb)
age while warming up.
Filter cover bolt:
10 Nm (1.0 m·kg, 7.2 ft·lb)

8-7

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 CAUTION:
If oil leakage is found, stop the engine im-
mediately and check for the cause.

Oil pressure check

1. Put a cloth around the cylinder.
2. Slightly loosen the oil gallery bolt in
the cylinder head.
3. Start the engine and keep it idling until
oil begins to seep from the oil gallery. 1. Oil gallery bolt 2. Cloth
If no oil comes out after one minute, 4. Restart the engine and check the oil
turn the engine off so it will not seize pressure.
and find the cause. 5. After checking, tighten the oil gallery
bolt to the specified torque.

Tightening torque:
Oil gallery bolt:
7 Nm (0.7 m·kg, 5.1 ft·lb)

CAUTION:
Be sure to inspect the oil pressure after re-
placing the engine oil.
8-8

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 EBU00278*

Final gear oil

Final gear oil measurement
1. Place the machine on a level place.
2. Remove the oil filler bolt and check the
oil level. It should be up to the brim of
the hole. If the level is low, add oil to
raise it to the proper level.

CAUTION:
Be sure no foreign material enters the final 1. Final gear oil 2. Correct oil level 3. Oil filler bolt
gear case.
Final gear oil replacement
3. Install the oil filler bolt and tighten to 1. Remove the final gear case cover.
the specified torque.

Tightening torque:
Oil filler bolt:
23 Nm (2.3 m·kg, 17 ft·lb)

8-9

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 2. Place the machine on a level place. 6. Fill the final gear case with oil.
3. Place a container under the final gear
case. Recommended oil:
4. Remove the oil filler bolt and the drain SAE 80 API “GL-4” Hypoid gear oil
plug to drain the oil. Oil quantity:
Periodic oil change:
0.25 L (0.21 Imp qt, 0.27 US qt)
Total amount:
0.27 L (0.23 Imp qt, 0.29 US qt)

CAUTION:
Be sure no foreign material enters the final
gear case.

7. Install the filler bolt and tighten to the

1. Drain plug specified torque.
5. Install the drain plug and tighten to the
Tightening torque:
specified torque.
Filler bolt (final gear case):
Tightening torque: 23 Nm (2.3 m·kg, 17 ft·lb)
Drain plug (final gear case): 8. Check for oil leakage. If oil leakage is
23 Nm (2.3 m·kg, 17 ft·lb) found, check for the cause.
9. Reinstall the final gear case cover.
8-10

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 EBU00286

Spark plug inspection Before installing the spark plug, measure

The spark plug is an important engine the electrode gap with a feeler gauge and
component and is easy to inspect. The adjust to specification.
condition of the spark plug can indicate the
condition of the engine. Spark plug gap:
For example, a very white center electrode 0.6 ~ 0.7 mm (0.024 ~ 0.028 in)
porcelain color could indicate an intake air
leak or carburetion problem for that cylin-
der. Do not attempt to diagnose such prob-
lems yourself.
Instead, take the machine to a Yamaha
dealer. You should periodically remove
and inspect the spark plug because heat
and deposits will cause the spark plug to
slowly break down and erode. If electrode
erosion becomes excessive, you should re-
place the spark plug with one of the proper a. Spark plug gap
type.

Standard spark plug:

DR7EA (NGK)

8-11

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 When installing the spark plug, always
clean the gasket surface and use a new
gasket. Wipe off any grime from the
threads and tighten to the specified torque.

Tightening torque:
Spark plug:
17.5 Nm (1.75 m·kg, 12.5 ft·lb)

EBU00294* 1. Check hose

Air filter cleaning 1. Remove the seat.
NOTE: 2. Remove the air filter case cover.
There is a check hose at the bottom of the
air filter case. If dust or water collects in
this hose, empty the hose and clean the air
filter element and air filter case.

8-12 1. Air cleaner case cover

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 3. Pull out the air filter element. 5. Tap the element lightly to remove
4. Separate the foam cover from the air most of the dust and dirt. Blow out the
filter element. remaining dirt with compressed air. If
the element is damaged, replace it.

6. Wash the foam cover gently but thor-

oughly in water or solvent.

1. Air filter element 2. Foam cover

8-13

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 WARNING NOTE:
POTENTIAL HAZARD The air filter element should be cleaned ev-
Using low flash point solvents or gaso- ery 20 ~ 40 hours. It should be cleaned
line to clean the foam cover. more often if the machine is operated in
WHAT CAN HAPPEN extremely dusty areas. Each time filter ele-
Low flash point solvents or gasoline can ment maintenance is performed, check the
catch fire or explode. air inlet to the filter case for obstructions.
HOW TO AVOID THE HAZARD Check the air cleaner rubber joint to the
Use parts cleaning solvent to clean the carburetor and manifold fittings for an air-
foam cover. tight seal. Tighten all fittings securely to
avoid the possibility of unfiltered air enter-
7. Squeeze the excess water or solvent
ing the engine.
out of the foam cover and let it dry.

CAUTION: CAUTION:
● Do not twist the foam cover when Never operate the engine with the air filter
squeezing it. element removed. This will allow unfil-
● Do not add oil to the foam cover. tered air to enter, causing rapid engine
8. Inspect the foam cover. If damaged, wear and possible engine damage. Addi-
replace it. tionally, operation without the filter ele-
9. Reinstall the foam cover to the air filter ment will affect carburetor jetting with
element. subsequent poor performance and possi-
10. Reinstall the air filter assembly and
parts removed for access. ble engine overheating.
8-14

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 EBU00296 EBU00301

Carburetor adjustment Idle speed adjustment

The carburetor is a vital part of the engine
and requires very sophisticated adjust- NOTE:
A diagnostic tachometer must be used for
ment. Most adjusting should be left to a
this procedure.
Yamaha dealer who has the professional
knowledge and experience to do so. How- 1. Start the engine and warm it up for a
ever, the idling speed may be performed few minutes at approximately 1,000 to
by the owner as a part of the usual mainte- 2,000 r/min. Occasionally rev the en-
nance routine. gine to 4,000 to 5,000 r/min. The en-
gine is warm when it quickly responds
CAUTION: to the throttle.
The carburetor was set at the Yamaha fac- 2. Connect the tachometer and set the
tory after many tests. If the settings are idle to the specified idling speed by
disturbed by someone without sufficient adjusting the throttle stop screw. Turn
technical knowledge, poor engine perfor- the screw in to increase engine speed,
mance and damage may result. and out to decrease engine speed.

Specified idle speed:

1,400 ~ 1,500 r/min

8-15

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 EBU00307

Throttle lever adjustment

NOTE:
Adjust the engine idling speed before ad-
justing the throttle lever free play.

1. Loosen the locknut.

2. Turn the adjusting bolt until the throt-
tle lever free play is 3 ~ 5 mm (0.12 ~
0.20 in).
1. Throttle stop screw 3. Tighten the locknut.

EBU00303

Valve clearance adjustment

The correct valve clearance changes with
use, resulting in improper fuel/air supply
or engine noise. To prevent this, the valve
clearance must be adjusted regularly. This
adjustment however, should be left to a
professional Yamaha service technician.
1. Adjusting bolt 2. Locknut
a. 3 ~ 5 mm (0.12 in ~ 0.20 in)

8-16

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 EBU00312 EBU00313

Front brake pad inspection Rear brake shoe inspection

Inspect the brake pads for damage and A wear indicator is provided on the rear
wear. If the thickness is less than the spec- brake. This indicator allows checking of
ified value, have a Yamaha dealer replace brake shoe wear without disassembling
the pads. the brake. Apply the rear brake and check
the position of the indicator. If the indicator
reaches the wear limit line, ask a Yamaha
dealer to replace shoes as a set.

1. Brake pad a. Wear limit: 1 mm (0.04 in)

NOTE:
The wheels need to be removed to inspect
the brake pads. See page 8-26 for removal 1. Wear indicator 2. Wear limit

procedures.

8-17

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 EBU00755

Brake fluid level inspection 2. Use only the designated quality brake
Insufficient brake fluid may let air enter the fluid. Otherwise, the rubber seals may
brake system, possibly causing the brakes deteriorate, causing leakage and poor
to become ineffective. brake performance.
Before riding, check that the brake fluid is
above the lower level and replenish when Recommended brake fluid: DOT 4
necessary. 3. Refill with the same type of brake fluid.
Mixing fluids may result in a harmful
chemical reaction and lead to poor
brake performance.
4. Be careful that water does not enter
the master cylinder when refilling. Wa-
ter will significantly lower the boiling
point of the fluid and may result in va-
por lock.
5. Brake fluid may deteriorate painted
surfaces or plastic parts. Always clean
1. Minimum level mark
up spilled fluid immediately.
Observe these precautions:
6. Have a Yamaha dealer check the cause
1. When checking the fluid level, make
if the brake fluid level goes down.
sure the top of the master cylinder is
level by turning the handlebars.
8-18

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 EBU00752* EBU00623

Brake fluid replacement Front brake adjustment

1. Complete fluid replacement should be The front brake lever should have a free
done only by trained Yamaha service play of zero mm (zero in) at the lever end. If
personnel. not, ask a Yamaha dealer to adjust it.
2. Have a Yamaha dealer replace the fol-
lowing components during periodic
maintenance or when they are dam-
aged or leaking.
● Replace all rubber seals every two
years.
● Replace all hoses every four years.

a. Free play

8-19

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 WARNING
POTENTIAL HAZARD
Operating with improperly serviced or
adjusted brakes.
WHAT CAN HAPPEN
You could lose braking ability, which
could lead to an accident.
HOW TO AVOID THE HAZARD
After servicing:
● Make sure the brakes operate
smoothly and that the free play is cor-
rect.
● Make sure the brakes do not drag.
● Make sure the brakes are not spongy.
All air must be bled from the brake
system.
Replacement of brake components re-
quires professional knowledge. These
procedures should be performed by a
Yamaha dealer.

8-20

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 EBU00327*

Rear brake adjustment

Brake pedal
1. Fully loosen the adjusting nut on the
brake cable.

a. 20 ~ 30 mm (0.8 ~ 1.2 in)

Brake lever
1. Loosen the locknut and fully turn in
the adjusting bolt on the handlebar.

1. Brake cable adjusting nut 2. Brake rod adjusting nut

2. Turn the adjusting nut on the brake

rod until free play at the pedal is 20 ~
30 mm (0.8 ~ 1.2 in).

8-21 1. Locknut 2. Adjusting bolt

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 2. Turn the adjusting nut on brake cable 3. Turn the adjusting bolt until free play
to provide a gap of 0 ~ 1 mm (0 ~ reaches 5 ~ 7 mm (0.2 ~ 0.3 in) at the
0.04 in) between the cam shaft lever lever pivot.
and pin.

1. Locknut 2. Adjusting bolt

a. 5 ~ 7 mm (0.2 ~ 0.3 in)
1. Brake cable adjusting nut a. 0 ~ 1 mm (0 ~ 0.04 in)
4. Tighten the locknut.

8-22

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 EBU00346

Clutch adjustment
WARNING
1. Loosen the locknut.
POTENTIAL HAZARD 2. Slowly turn the adjusting bolt counter-
Operating with improperly serviced or clockwise until resistance is felt. Then,
adjusted brakes. turn it 1/8 turn clockwise.
WHAT CAN HAPPEN
You could lose braking ability, which
could lead to an accident.
HOW TO AVOID THE HAZARD
After servicing:
● Make sure the brakes operate
smoothly and that the free play is cor-
rect.
● Make sure the brakes do not drag.
Replacement of brake components re-
1. Locknut 2. Adjusting bolt
quires professional knowledge. These
procedures should be performed by a 3. Tighten the locknut to specification.
Yamaha dealer.
Tightening torque:
15 Nm (1.5 m·kg, 11 ft·lb)

8-23

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 NOTE: Lubricate the inner cables and the cable
Turn the adjusting bolt counterclockwise ends. If the cables do not operate smooth-
to decrease the clutch free play and turn it ly, ask a Yamaha dealer to replace them.
clockwise to increase the free play.
Recommended lubricant:
Yamaha chain and cable lube or
EBU00356 SAE 10W30 motor oil
Cable inspection and lubrication
WARNING
POTENTIAL HAZARD
Damaged control cables.
WHAT CAN HAPPEN
Corrosion can result when the outer
covering of control cables becomes
damaged. Cables can also become
frayed or kinked. Operation of controls
could be restricted, which could cause
an accident or injury.
HOW TO AVOID THE HAZARD
Inspect cables frequently. Replace dam-
aged cables.

8-24

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 EBU00717

Brake lever and brake pedal lubrication

Lubricate the pivoting parts.

Recommended lubricant:
Lithium-soap-based grease
(all-purpose grease)

8-25

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 EBU00370 EBU00373

Steering shaft lubrication Wheel removal

Lubricate the pivot points. Use a grease 1. Elevate the wheel by placing a suitable
gun. stand under the frame.
2. Remove the nuts from the wheel.
Recommended lubricant: 3. Remove the wheel assembly.
Lithium soap base grease

8-26

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 EBU00376

Wheel installation 1. Tapered wheel nuts are used for both

When installing the wheel, reverse the re- front and rear wheels. Install the nut
moval procedure. Pay attention to the fol- with its tapered side towards the
lowing. wheel.
2. Tighten the wheel nuts.
NOTE:
The arrow mark on the tire must point
toward the rotating direction of the wheel.

1. Tapered nut

Wheel nut torque:

Front: 55 Nm (5.5 m·kg, 40 ft·lb)
1. Arrow mark
Rear: 55 Nm (5.5 m·kg, 40 ft·lb)

8-27

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 EBU00378

Battery
Check the level of the battery fluid and see
if the terminals are tight. Add distilled wa-
ter if the fluid level is low.

CAUTION:
Do not leave or store the battery on its
side. When inspecting the battery, be sure
the breather hose is routed correctly. If it
touches the frame or exists in such a way
as to cause battery electrolyte or gas to 1. Battery 2. Battery breather hose 3. Clamp (× 3)
exit onto the frame, structural and cos-
metic damage to the machine can occur.

8-28

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 WARNING EYES: Flush with water for 15 minutes
POTENTIAL HAZARD and get prompt medical attention. Keep
Failure to handle batteries or battery batteries away from sparks, flames, cig-
electrolyte carefully. arettes or other sources of ignition. Ven-
tilate when charging or using in a closed
WHAT CAN HAPPEN
space.
You could be poisoned. You could be se-
verely burned by the sulfuric acid in bat-
tery electrolyte.
Batteries produce explosive gases.
HOW TO AVOID THE HAZARD
Avoid contact with skin, eyes or cloth-
ing. Always shield eyes when working
near batteries. Keep out of reach of chil-
dren.
Antidote:
EXTERNAL: Flush with water.
INTERNAL: Drink large quantities of wa-
ter or milk. Follow with milk of magne-
sia, beaten egg or vegetable oil. Get
prompt medical attention.

8-29

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 EBU00382*

Replenishing the battery fluid CAUTION:

A poorly maintained battery will corrode
Normal tap water contains minerals which
and discharge quickly. The battery fluid
are harmful to a battery. Therefore, refill
should be checked at least once a month.
only with distilled water.
1. The level should be between the up-
per and lower level marks. Use only 5. When the machine is not to be used
distilled water if refilling is necessary. for a month or longer, remove the bat-
tery and store it in a cool, dark place.
Completely recharge the battery be-
fore reusing.
6. If the battery is to be stored for a long-
er period than the above, check the
specific gravity at least once a month
and recharge the battery when it is too
low.
7. Always make sure the connections are
correct when putting the battery back
1. Maximum level mark “UPPER LEVEL”
2. Minimum level mark “LOWER LEVEL” in the machine. Make sure the breath-
2. Disconnect the negative (−) lead. er hose is properly connected and is
3. Disconnect the positive (+) lead. not damaged or obstructed.
4. Remove the bolts for battery bracket
and remove the battery.
8-30

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 EBU00390

Fuse replacement
WARNING
1. The fuse case is located under the
seat. POTENTIAL HAZARD
2. If the fuse is blown, turn off the main Using an improper fuse.
switch and install a new fuse of the WHAT CAN HAPPEN
specified amperage. Then turn on the An improper fuse can cause damage to
switches. If the fuse immediately the electrical system which could lead
blows again, consult a Yamaha dealer. to a fire.
HOW TO AVOID THE HAZARD
Specified fuse: 20 A
Always use a fuse of the specified rat-
ing. Never use a material in place of the
proper fuse.

CAUTION:
To prevent accidental short-circuiting,
turn off the main switch when checking or
replacing a fuse.

1. Main fuse 2. Spare fuse

8-31

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 EBU00399

Replacing the headlight bulb

If the headlight bulb burns out, replace the
bulb as follows:
1. Remove the headlight cover.

1. Cover (× 2)

1. Headlight cover

2. Remove the cover, and turn the bulb

holder counterclockwise and remove
the defective bulb.

1. Bulb holder

8-32

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 EBU00409

Headlight beam adjustment

WARNING
POTENTIAL HAZARD CAUTION:
The headlight bulb is hot when it is on It is advisable to have a Yamaha dealer
and immediately after it is turned off. make this adjustment.
WHAT CAN HAPPEN
You can be burned, or a fire could start if 1. Vertical adjustment:
the bulb touches something flammable. To raise the beam, turn the adjusting
screw clockwise.
HOW TO AVOID THE HAZARD
To lower the beam, turn the screw
Wait for the bulb to cool before touch-
counterclockwise.
ing or removing it.

3. Put a new bulb into position and se-

cure it in place with the bulb holder.
4. Reinstall the cover and headlight cov-
er. Adjust the headlight beam if neces-
sary.

1. Adjusting screw (× 2)

8-33

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 EBU00754

Spark arrester cleaning 4. Install the purging bolt and tighten it.
Select a well-ventilated area free of com-
WARNING
bustible materials and make sure the ex-
haust pipe and muffler are cool. POTENTIAL HAZARD
1. Remove the purging bolt. Improperly purging the exhaust system.
Hot exhaust system.
WHAT CAN HAPPEN
Could injure the eyes.
Could cause burns.
Could cause carbon monoxide poison-
ing, possibly leading to death.
Could start a fire.
HOW TO AVOID THE HAZARD
When cleaning the spark arrester:
Always let the exhaust system cool pri-
1. Purging bolt
or to touching exhaust components. Al-
2. Start the engine and rev it up approxi- ways wear eye protection, and make
mately twenty times while momen- sure no one is behind the vehicle. Never
tarily creating exhaust system back run the engine in an enclosed area.
pressure by blocking the end of the Make sure there are no combustible ma-
muffler with a shop towel. terials in the area.
3. Stop the engine and allow the exhaust
pipe to cool.
8-34

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 EBU00412

Troubleshooting
WARNING
Although Yamaha machines receive a rigid
inspection before shipment from the facto- POTENTIAL HAZARD
ry, trouble may occur during operation. Checking the fuel system while smok-
Any problem in the fuel, compression, or ing or near an open flame.
ignition systems can cause poor starting WHAT CAN HAPPEN
and loss of power. The troubleshooting Fuel can ignite or explode, causing se-
chart describes a quick, easy procedure for vere injury or property damage.
making checks. If your machine requires HOW TO AVOID THE HAZARD
any repair, take it to a Yamaha dealer. Do not smoke when checking the fuel
The skilled technicians at a Yamaha dealer- system. Make sure there are no open
ship have the tools, experience, and know- flames or sparks in the area, including
how to properly service your machine. Use pilot lights from water heaters or
only genuine Yamaha parts on your ma- furnaces.
chine. Imitation parts may look like
Yamaha parts, but they are often inferior.
Consequently, they have a shorter service
life and can lead to expensive repair bills.

8-35

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 EBU00440

Troubleshooting chart

There is fuel. Turn the fuel Remove the Check fuel Fuel cock
No fuel.
cock to “OFF”. fuel pipe. flow. clogged.
1. Fuel

Check if there is fuel Turn the fuel

in the fuel tank. Some fuel. Restart engine.
cock to “RES”. Clean fuel

No fuel. Supply fuel.

cock.
E
2. Compression
There is compression. Compression normal.
Use electric starter to
see if there is
compression. Ask a Yamaha dealer to
No compression.
inspect.

3. Ignition Wet Wipe clean with dry cloth.

Ignition system
Spark good.
Remove plug and normal.
check electrode.
Attach plug cap and Use the
Dry electric starter. Spark weak.
ground to chassis.

Adjust plug gap

4. Battery No spark.
Engine turns over or replace plug.
quickly. Battery good.
Use electric starter.
Engine turns over Check fluid, recharge,
Ask a Yamaha dealer to
slowly. check connections.
inspect.

8-36

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 EBU00419*

CLEANING AND STORAGE CAUTION:

CLEANING Excessive water pressure may cause wa-
Frequent, thorough cleaning of your ma- ter seepage and deterioration of wheel
chine will not only enhance its appearance bearings, brakes, transmission seals and
but will improve its general performance electrical devices. Many expensive repair
and extend the useful life of many bills have resulted from improper high
components. pressure detergent applications such as
1. Before cleaning the machine: those available in coin-operated car
a. Block off the end of the exhaust pipe to washers.
prevent water entry. A plastic bag and
4. Once the majority of the dirt has been
strong rubber band may be used.
hosed off, wash all surfaces with
b. Make sure the spark plug and all filler
warm water and mild, detergent-type
caps are properly installed.
soap. An old toothbrush or bottle
2. If the engine case is excessively
brush is handy for hard-to-get-at
greasy, apply degreaser with a paint
places.
brush. Do not apply degreaser to the
5. Rinse the machine off immediately
wheel axles.
with clean water and dry all surfaces
3. Rinse the dirt and degreaser off with a
with a chamois, clean towel or soft ab-
garden hose. Use only enough pres-
sorbent cloth.
sure to do the job.

9-1

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 6. Clean the seat with a vinyl upholstery WARNING
cleaner to keep the cover pliable and
glossy. POTENTIAL HAZARD 8
7. Automotive type wax may be applied Operation with wet brakes after wash-
8
to all painted and chrome plated sur- ing.
8
faces. Avoid combination cleaner- WHAT CAN HAPPEN
waxes. Many contain abrasives which Wet brakes may have reduced stopping 8
may mar the paint or protective finish. ability, increasing the chance of an acci- 8
When finished, start the engine and let dent.
8
it idle for several minutes. HOW TO AVOID THE HAZARD
Test the brakes after washing. Apply 8
the brakes several times at slow speeds 8
to let friction dry out the linings.
9

80

88

88

88

88

9-2

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 EBU00426*

STORAGE 2. Remove the spark plug, pour about

Long term storage (60 days or more) of one tablespoon of SAE 10W30 or
your machine will require some preventive 20W40 motor oil in the spark plug hole
procedures to guard against deterioration. and reinstall the spark plug. Ground
After thoroughly cleaning the machine, the spark plug wire and turn the en-
prepare for storage as follows: gine over several times to coat the cyl-
1. Fill the fuel tank with fresh fuel and inder wall with oil.
add the specified amount of fuel stabi- 3. Lubricate all control cables.
lizer and conditioner. 4. Block up the frame to raise all wheels
off the ground.
Specified amount: 5. Tie a plastic bag over the exhaust pipe
1 oz of stabilizer to each gallon of fuel outlet to prevent moisture from
(or 7.5 cc of stabilizer to each liter of entering.
fuel) 6. If storing in a humid or salt-air atmo-
sphere, coat all exposed metal surfac-
NOTE: es with a light film of oil. Do not apply
Use of Yamaha fuel stabilizer and Condi-
oil to any rubber parts or the seat
tioner eliminates the need to drain the fuel
cover.
system. Consult a Yamaha dealer if the
fuel system needs to be drained instead.

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 7. Remove the battery and charge it.
Store it in a dry place and recharge it
once a month. Do not store the battery
in an excessively warm or cold place
(less than 0 ˚C [30 ˚F] or more than
30 ˚C [90 ˚F]).

NOTE:
Make any necessary repairs before storing
the machine.

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 EBU00428

SPECIFICATIONS

MODEL YFM250X
Dimension:
Overall length 1,940 mm (76.3 in)
Overall width 1,005 mm (39.5 in)
E Overall height
Seat height
1,118 mm (44.0 in)
780 mm (30.7 in)
Wheel base 1,170 mm (46.0 in)
Minimum ground clearance 150 mm ( 5.9 in)
Minimum turning radius 2,900 mm ( 114 in)
Basic weight:
With oil and full fuel tank 212 kg (467 lb)
Engine:
Type Air cooled, 4-stroke, SOHC
Cylinder arrangement: Single cylinder, forward inclined
Displacement 229.6 cm3
Bore × Stroke 71 × 58 mm (2.79 × 2.28 in)
Compression ration 8.7 : 1
Starting system Electric starter and recoil starter
Lubrication system Wet sump

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 MODEL YFM250X
Engine oil:
Type See page 5-7 10
Quantity:
10
Periodic oil change 1.5 L (1.3 Imp qt, 1.6 US qt)
With oil filter replacement 1.6 L (1.4 Imp qt, 1.7 US qt) 10
Total amount 1.8 L (1.6 Imp qt, 1.9 US qt)
Final gear case oil:
Type SAE80 API “GL-4” Hypoid gear oil
E
10

Quantity 10
Total amount 0.27 L (0.23 Imp qt, 0.29 US qt)
10
Air filter Dry type element
10
Fuel:
Type UNLEADED FUEL 10
Tank capacity 12 L (2.64 Imp gal, 3.17 US gal)
Reserve amount 1.6 L (0.35 Imp gal, 0.42 US gal) 10
Carburetor:
Type/quantity BST34/1 10
Manufacturer MIKUNI
1010
Spark plug:
Type DR7EA 1010
Manufacturer NGK
Gap 0.6 ~ 0.7 mm (0.024 ~ 0.028 in) 1010

1010

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 MODEL YFM250X
Clutch type Wet, centrifugal automatic
Transmission:
Primary reduction system Spur gear
Primary reduction ratio 73/22 (3.318)
Secondary reduction system Shaft drive

E Secondary reduction ratio

Transmission type
Operation
19/18 × 46/11 (4.414)
Constant mesh 5-speed forward, 1-speed reverse
Left foot operation
Gear ratio: 1st 34/12 (2.833)
2nd 34/19 (1.789)
3rd 29/22 (1.318)
4th 26/25 (1.040)
5th 23/28 (0.821)
Reverse 73/22 × 34/12 × 19/18 (9.924)
Chassis:
Frame type Steel tube
Caster angle 4°
Trail 20 mm (0.78 in)
Tire:
Type Tubeless
Size: Front AT22 × 7-10
Size: Rear AT22 × 10-10

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 MODEL YFM250X
Brake:
Front brake type Dual disc brake
Operation Right hand operation
Rear brake type Drum brake
Operation Left hand and right foot operation
Suspension:
Front
Rear
Strut
Swingarm (monocross)
E
Shock absorber:
Front Coil spring, Oil damper
Rear Coil spring, Oil damper
Wheel travel:
Front 125 mm (4.9 in)
Rear 135 mm (5.3 in)
Electrical:
Ignition system DC C.D.I.
Generator system AC magneto
Battery type/voltage, capacity YB14A-A2/12V, 14AH
Headlight type Bulb
Bulb voltage, wattage × quantity:
Headlight 12V, 25W/25W × 2
Taillight 12V, 7.5W × 1
Indicator light:
Neutral 12V, 1.7W × 1
Reverse 12V, 1.7W × 1

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 EBU00430

NOISE REGULATION
TAMPERING WITH NOISE CONTROL SYSTEM PROHIBITED:
Federal law prohibits the following acts or the causing thereof: (1) The removal or render-
ing inoperative by any person other than for purposes of maintenance, repair, or replace-
ment 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 or
(2) the use of the vehicle after such device or element of design has been removed or ren-
dered inoperative by any person.

“AMONG THOSE ACTS PRESUMED TO CONSTITUTE TAMPERING ARE THE ACTS LIST-
ED BELOW.”
These acts include tampering with the following systems; i.e., modification, removal, etc.

Muffler
Exhaust system Exhaust pipe
Silencer
Air cleaner case
Intake system Air cleaner element
Intake duct

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 EBU00431

MAINTENANCE RECORD
Copies of work orders and/or receipts for parts you purchase and install will be required to
document maintenance done in accordance with the warranty. The chart below is printed 12
only as a reminder to you that the maintenance work is required. It is not acceptable proof 12
of maintenance work.
ACL-02E
12

MAINTENANCE DATE OF SERVICING DEALER 12

MILEAGE REMARKS
INTERVAL SERVICE NAME AND ADDRESS
12
1 Month
3 Months 12
6 Months 12
12 Months
12
18 Months
24 Months 9
30 Months 120
36 Months
11
42 Months
48 Months 12
54 Months
1212
60 Months
1212

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 EBU00432
YAMAHA MOTOR CORPORATION, U.S.A.
ATV LIMITED WARRANTY

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 13

13

13
13

13

13

13

13

13

130

1313

1313

13

1313

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 EBU00435

YAMAHA EXTENDED SERVICE (Y.E.S.)

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 14

14

14
14

14

14

14

14

14

140

1414

1414

1414

14

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 E
EBU00436

WARNING
Indicates a potential hazard that could
result in serious injury or death.

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 EBU00438

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 EBU00438

WARNING
Improper ATV use can result in SEVERE INJURY or DEATH.

ALWAYS USE NEVER USE NEVER CARRY NEVER USE

AN APPROVED ON PUBLIC PASSENGERS WITH DRUGS
HELMET AND ROADS OR ALCOHOL
PROTECTIVE GEAR
NEVER operate: ALWAYS:
• without proper training or instruction. • use proper riding techniques to avoid
• at speeds too fast for your skills or vehicle overturns on hills and rough terrain
the conditions. and in turns.
• on public roads-a collision can occur with • avoid paved surfaces-pavement may
another vehicle. seriously affect handling and control.
• with a passenger-passengers affect balance
and steering and increase risk
of losing control.
LOCATE AND READ OWNER'S MANUAL. FOLLOW ALL INSTRUCTIONS AND WARNINGS.
(For replacement manual, call 1-800-532-1558)

YAMAHA MOTOR CO., LTD.

PRINTED ON RECYCLED PAPER PRINTED IN USA
2000 · 5 - 4.0 × 1 CR
(E)

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