OWNER’S MANUAL

YFM350FWA-W
YFM350A-W
38P-F8199-70

DIC183
EBU17330

IMPORTANT MANUAL INFORMATION

EBU17341

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

Failure to follow WARNING instructions could result in severe injury

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

A CAUTION indicates special precautions that must be taken to avoid

CAUTION: damage to the ATV.

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

* Product and specifications are subject to change without notice.

EBU17350

IMPORTANT NOTICE
EBU17370

Welcome to the Yamaha world of motor sports!

This ATV is designed and manufactured for use on UNPAVED surfaces only. It is unsafe to operate this
ATV on any paved surface, paved street, paved road or motorway.
Please check your local riding laws and regulations before operating this ATV.

EBUM0010

YFM350FWA-W/YFM350A-W
OWNER’S MANUAL
©2007 by MBK INDUSTRIE
1st edition, 2007 December
All rights reserved
Any reprinting or unauthorized use
without the written permission of
MBK INDUSTRIE
is expressly prohibited.
Printed in France.
EBU17420

TABLE OF CONTENTS
SAFETY INFORMATION .............................. 1-1 Fuel tank cap ............................................4-11
Fuel ...........................................................4-11
LOCATION OF THE WARNING AND Fuel cock ..................................................4-13
SPECIFICATION LABELS ............................ 2-1 Starter (choke) ..........................................4-14
Steering lock .............................................4-15
DESCRIPTION .............................................. 3-1 Seat ..........................................................4-15
Left view ...................................................... 3-1 Storage compartment ...............................4-16
Right view.................................................... 3-1 Front carrier ..............................................4-17
Controls and instruments ............................ 3-2 Rear carrier ...............................................4-17
Adjusting the front shock absorber
INSTRUMENT AND CONTROL assemblies ..............................................4-17
FUNCTIONS .................................................. 4-1 Adjusting the rear shock absorber
Main switch ................................................ 4-1 assembly .................................................4-19
Indicator lights and warning light ................ 4-2 Catalytic converter ....................................4-20
Speedometer .............................................. 4-3
Handlebar switches .................................... 4-4 PRE-OPERATION CHECKS ..........................5-1
Throttle lever .............................................. 4-6 Pre-operation check list ..............................5-1
Speed limiter .............................................. 4-7 Fuel .............................................................5-3
Front brake lever ........................................ 4-8 Engine oil ....................................................5-3
Rear brake lever ......................................... 4-8 Final gear oil ...............................................5-3
Brake pedal ................................................ 4-9 Differential gear oil (4WD model).................5-3
Parking brake ............................................. 4-9 Front and rear brakes .................................5-3
Drive select lever ...................................... 4-10 Throttle lever ...............................................5-4
Recoil starter ............................................ 4-10 Tires ............................................................5-4
 Measuring the tire pressure ....................... 5-5 SLIDING AND SKIDDING .........................7-22
Tire wear limit ............................................. 5-6 WHAT TO DO IF........................................7-24
Chassis fasteners ....................................... 5-7 WHAT TO DO............................................7-24
Instruments, lights and switches ................ 5-7
PERIODIC MAINTENANCE AND MINOR
OPERATION .................................................. 6-1 REPAIR ..........................................................8-1
Starting a cold engine ................................ 6-1 Owner’s manual and tool kit .......................8-1
Starting a warm engine .............................. 6-3 Periodic maintenance chart for
Operating the drive select lever and the emission control system .....................8-3
driving in reverse ...................................... 6-3 General maintenance and lubrication
Engine break-in .......................................... 6-4 chart ..........................................................8-5
Parking ....................................................... 6-5 Removing and installing the panel ..............8-9
Parking on a slope ..................................... 6-5 Checking the spark plug .............................8-9
Accessories and loading ............................ 6-6 Engine oil and oil filter cartridge ................8-11
Final gear oil .............................................8-15
RIDING YOUR ATV ...................................... 7-1 Changing the differential gear oil
GETTING TO KNOW YOUR ATV............... 7-2 (4WD model)............................................8-18
RIDE WITH CARE AND GOOD Cleaning the air filter element ...................8-20
JUDGEMENT............................................ 7-2 V-belt cooling duct check hose .................8-23
BE CAREFUL WHERE YOU RIDE............. 7-9 V-belt case drain plug ...............................8-23
TURNING YOUR ATV .............................. 7-13 Adjusting the carburetor ............................8-23
CLIMBING UPHILL ................................... 7-14 Adjusting the engine idling speed .............8-24
RIDING DOWNHILL.................................. 7-17 Adjusting the throttle cable free play .........8-25
CROSSING A SLOPE............................... 7-18 Valve clearance ........................................8-25
CROSSING THROUGH SHALLOW Adjusting the drive select lever safety
WATER ................................................... 7-19 system cable ...........................................8-26
RIDING OVER ROUGH TERRAIN ........... 7-22
Checking the front brake pads and Troubleshooting ........................................8-40
rear brake shoes .................................... 8-26 Troubleshooting chart ...............................8-41
Checking the brake fluid level .................. 8-27
Changing the brake fluid .......................... 8-28 CLEANING AND STORAGE ..........................9-1
Checking the front brake lever free Cleaning ......................................................9-1
play ......................................................... 8-29 Storage .......................................................9-2
Checking the rear brake lever and
brake pedal free play and the brake SPECIFICATIONS .......................................10-1
pedal position ......................................... 8-29
Axle boots ................................................ 8-31 CONSUMER INFORMATION.......................11-1
Brake light switches ................................. 8-31 Identification numbers ...............................11-1
Checking and lubricating the cables ........ 8-32
Checking and lubricating the front and
rear brake levers .................................... 8-32
Checking and lubricating the brake
pedal ...................................................... 8-33
Checking the wheel hub bearings ............ 8-34
Lubricating the steering shaft ................... 8-34
Battery ...................................................... 8-34
Replacing a fuse ...................................... 8-36
Headlight bulb .......................................... 8-37
Headlight beam ........................................ 8-37
Replacing the tail/brake light bulb ............ 8-37
Replacing a turn signal light bulb ............. 8-38
Auxiliary light bulb .................................... 8-38
Removing a wheel .................................... 8-38
Installing a wheel ...................................... 8-39
EBU17430

SAFETY INFORMATION 1

EBU17562 ● Never carry a passenger on an ATV.

● Always avoid operating an ATV on any paved
AN ATV IS NOT A TOY AND CAN BE HAZARD- surfaces, including sidewalks, driveways, park-
OUS TO OPERATE. ing lots and paved streets.
An ATV handles differently from other vehicles, in- ● Never operate an ATV on any paved street,
cluding motorcycles and cars. A collision or roll- paved road or motorway.
over can occur quickly, even during routine ● Watch carefully for other vehicles when operat-
maneuvers such as turning and riding on hills or ing on unpaved public streets or roads. Make
over obstacles, if you fail to take proper precau- sure you know your country’s laws and regula-
tions. tions before you ride on unpaved public streets
SEVERE INJURY OR DEATH can result if you do or roads.
not follow these instructions: ● Never operate an ATV without wearing an ap-
● Read this manual and all labels carefully and fol- proved motorcycle helmet that fits properly. You
low the operating procedures described. should also wear eye protection (goggles or face
● Never operate an ATV without proper training or shield), gloves, boots, a long-sleeved shirt or a
instruction. jacket, and long pants.
● Always follow the age recommendation: ● Never consume alcohol or drugs before or while
– A child under 16 years old should never oper- operating this ATV.
ate an ATV with engine size greater than 90 cc. ● Never operate at speeds too fast for your skills
● Never allow a child under age 16 to operate an or the riding conditions. Always go at a speed
ATV without adult supervision, and never allow that is proper for the terrain, visibility, operating
continued use of an ATV by a child if he or she conditions, and your experience.
does not have the abilities to operate it safely. ● Never attempt wheelies, jumps, or other stunts.
1-1
 ● Always inspect your ATV each time you use it to ● Always follow proper procedures for climbing
make sure it is in safe operating condition. Al- hills as described in this manual. Check the ter-
1 ways follow the inspection and maintenance rain carefully before you start up any hill. Never
procedures and schedules described in this climb hills with excessively slippery or loose sur-
manual. faces. Shift your weight forward. Never open the
● Always keep both hands on the handlebars and throttle suddenly. Never go over the top of a hill
both feet on the footboards of the ATV during at high speed.
operation. ● Always follow proper procedures for going down
● Always go slowly and be extra careful when op- hills and for braking on hills as described in this
erating on unfamiliar terrain. Always be alert to manual. Check the terrain carefully before you
changing terrain conditions when operating the start down any hill. Shift your weight backward.
ATV. Never go down a hill at high speed. Avoid going
● Never operate on excessively rough, slippery or down a hill at an angle that would cause the ve-
loose terrain until you have learned and prac- hicle to lean sharply to one side. Go straight
ticed the skills necessary to control the ATV on down the hill where possible.
such terrain. Always be especially cautious on ● Always follow proper procedures for crossing
these kinds of terrain. the side of a hill as described in this manual.
● Always follow proper procedures for turning as Avoid hills with excessively slippery or loose sur-
described in this manual. Practice turning at low faces. Shift your weight to the uphill side of the
speeds before attempting to turn at faster ATV. Never attempt to turn the ATV around on
speeds and never turn at excessive speeds. any hill until you have mastered the turning tech-
● Never operate the ATV on hills too steep for the nique described in this manual on level ground.
ATV or for your abilities. Practice on smaller hills Avoid crossing the side of a steep hill if possible.
before attempting larger hills. ● Always use proper procedures if you stall or roll
backwards when climbing a hill. Maintain a
steady speed when climbing a hill. If you stall or

1-2
 roll backwards, follow the special procedure for ● Always be sure there are no obstacles or people
braking described in this manual. Dismount on behind you when you operate in reverse. When
the uphill side or to a side if pointed straight up- it is safe to proceed in reverse, go slowly. 1
hill. Turn the ATV around and remount, following ● Always use the size and type of tires specified in
the procedure described in this manual. this manual.
● Always check for obstacles before operating in a ● Always maintain proper tire pressure as de-
new area. scribed in this manual.
● Never attempt to operate over large obstacles, ● Never modify an ATV through improper installa-
such as large rocks or fallen trees. Always follow tion or use of accessories.
proper procedures when operating over obsta- ● Never exceed the stated load capacity for an
cles as described in this manual. ATV. Cargo should be properly distributed and
● Always be careful when skidding or sliding. securely attached. Reduce speed and follow in-
Learn to safely control skidding or sliding by structions in this manual for carrying cargo or
practicing at low speeds and on level, smooth pulling a trailer. Allow greater distance for brak-
terrain. On extremely slippery surfaces, such as ing.
ice, go slowly and be very cautious in order to re- EWB00061

duce the chance of skidding or sliding out of con- WARNING

trol. ● Always turn off the engine when refueling.
● Never operate an ATV in fast flowing water or in ● Do not refuel right after the engine has been
water deeper than that recommended in this running and is still very hot.
manual. Remember that wet brakes may have ● Do not spill gasoline on the engine or ex-
reduced stopping ability. Test your brakes after haust pipe/muffler when refueling. Never re-
leaving water. If necessary, apply them several fuel while smoking, or in the vicinity of
times to let friction dry out the linings. sparks, open flames, or other sources of ig-

1-3
 nition such as the pilot lights of water heat- EWB00070

ers and clothes dryers. Gasoline can catch WARNING

1 fire and you could be burned. Always operate your ATV in an area with ade-
● When transporting the ATV in another vehi- quate ventilation. Never start or run the engine
cle, be sure it is kept upright and that the fuel in a closed area. Exhaust fumes are poisonous
cock is in the “OFF” position. Otherwise, fuel and may cause loss of consciousness and
may leak out of the carburetor or fuel tank. death within a short time.
● Gasoline is poisonous. If you should swal-
low some gasoline or inhale a lot of gasoline
vapor, or get some gasoline in your eyes,
seek medical help immediately. If gasoline
spills on your skin, wash with soap and wa-
ter. If gasoline spills on your clothing,
change your clothes.

1-4
EBU17660

LOCATION OF THE WARNING AND SPECIFICATION LABELS

1 2 3 4 6

2-1
 EBU17670

Read and understand all of the labels on your ATV. These labels contain important information for safe and
proper operation.
2 Never remove any labels from your ATV. If a label becomes difficult to read or comes off, request a replace-
ment label from your Yamaha dealer.

1 2
LOAD LIMIT
40 kg (88 lbs)
5ND-F4877-20

25 kPa 25 kPa
3 0.25 kgf/cm 2 0.25 kgf/cm 2
3.6 psi 3.6 psi
GB Set with tires cold. I Impostare a pneumatici
freddi.
D Bei kalten Reifen. NL Wanneer de banden
koud zijn.
E Ajuste con los P Regular com pneus
neumáticos an frío. frios.
F Pneus à froid. S Ställ in med kalla däck.
5UH-F151H-20 5ND-F1696-00

2-2
4 5
LOAD LIMIT
80 kg (176 lbs)
2
5ND-F4897-20

6
Before you operate this vehicle,
GB read the owner's manual.

Lesen Sie die Bedlenungsanleitung

D bevor Sie dieses Fahrzeug fahren.

Antes de conducir este vehículo,

E lea el Manual del Propietario.

<16 F

NL
Lire le manuel du propriétaire avant
d'utiliser ce véhicule.

Prima di usare il veicolo,

leggete il manuale di istruzioni.

Voor het gebruik van dit voertulg

de handleiding met aandacht lezen.

Antes de utilizar este veículo,

P leia o manual do proprietário.

lnnan du kör detta fordon,

S läs handboken.
4XE-F415A-20
4XE-F1568-50

2-3
 EBU17680

DESCRIPTION
EBU17690 EBU17700
Left view Right view

1. Fuel cock 1. Rear shock absorber assembly spring preload adjusting

2. Throttle stop screw ring
3. Air filter case 2. Storage compartment and tool kit
4. Fuses 3. Spark plug
5. Battery 4. Front shock absorber assembly spring preload adjusting
6. Tail/brake light ring
7. Recoil starter 5. Rear brake light switch
6. Brake pedal
8. Engine oil filler cap
9. Oil filter cartridge 7. V-belt case drain plug
10.V-belt cooling duct check hose

3-1
EBU17712
Controls and instruments
1 2 3 4 5 6 7 8 9 10 11 12

1. Rear brake lever

2. Left handlebar switches
3. Starter (choke)
4. Parking brake lock plate
5. Drive select lever
6. Speedometer
7. Main switch
8. Fuel tank cap
9. Right handlebar switch
10.On-Command four-wheel-drive switch (4WD model)
11.Throttle lever
12.Front brake lever

NOTE:
The ATV you have purchased may differ slightly
from the figures shown in this manual.

3-2
 EBU17732

INSTRUMENT AND CONTROL FUNCTIONS

EBUM0020
Main switch
The positions of the main switch are as follows:

ON
All electrical systems are supplied with power. The
4
auxiliary light, meter lighting and taillight come on
when the light switch is on, and the engine can be
started. The key cannot be removed.

OFF
All electrical systems are off. The key can be re-
1. Main switch
moved.

4-1
EBU17813 EBU17830
Indicator lights and warning light Reverse indicator light “ ”
This indicator light comes on when the transmis-
sion is in the reverse position.
EBU17860
Neutral indicator light “ ”
This indicator light comes on when the transmis-
sion is in the neutral position.
4
EBU27980
High beam indicator light “ ”
This indicator light comes on when the high beam
of the headlight is switched on.
1. Reverse indicator light “R” EBU26931
2. Neutral indicator light “N” Oil temperature warning light “ ”
3. High beam indicator light “ ” This warning light comes on when the engine over-
4. Oil temperature warning light “ ”
heats. When this occurs, stop the engine as soon
5. Turn signal indicator light “ ”
as it is safe to do so, and allow it to cool.
6. On-Command four-wheel-drive indicator light “ ” (4WD
model) The electrical circuit of the warning light can be
checked by turning the key to “ON”, with the engine
EBU27970 stop switch set to “ ”, and then pushing the start
Turn signal indicator light “ ” switch.
This indicator light flashes when the turn signal If the warning light does not come on while the start
switch is pushed to the left or right. switch is being pushed, then go off after the start
switch is released, have a Yamaha dealer check
the electrical circuit.

4-2
 If the warning light stays on, allow the engine to EBU18020

cool. If the warning light stays on when the engine Speedometer

is cool, have a Yamaha dealer check the electrical The speedometer shows the riding speed. This
circuit. speedometer is equipped with an odometer and a
ECB00010 tripmeter. The tripmeter can be reset to “0” with the
CAUTION: reset knob. Use the tripmeter to estimate how far
● The engine may overheat if the ATV is over- you can ride on a tank of fuel before going to re-
loaded. In this case, reduce the load to spec- serve. This information will enable you to plan fuel
4 ification. stops in the future.
● Start the engine after making sure that the 1 2 3
warning light is out. Continuous use while
the warning light is on may cause damage to
the engine.

EBU17952
On-Command four-wheel-drive indicator
light “ ” (4WD model) 4
This indicator light comes on when the On-Com- 1. Reset knob
mand four-wheel-drive switch is set to the “4WD” 2. Speedometer
position. 3. Odometer
4. Tripmeter
NOTE:
Due to the synchronizing mechanism in the differ-
ential gear case, the light may not come on until
the ATV starts moving.

4-3
EBU18061
Handlebar switches

1
4
1. Engine stop switch “ / ”

EBU18080
Engine stop switch “ / ”
Set this switch to “ ” before starting the engine.
1. Light switch “ / / ” The engine stop switch controls the ignition and
2. Hazard switch “ ” stops the engine when it is running. Use this switch
3. Turn signal switch “ / ” to stop the engine in an emergency situation. The
4. Horn switch “ ” engine will not start or run when this switch is set
5. Start switch “ ”
to “ ”.
EBU18100
Start switch “ ”
Push this switch to crank the engine with the start-
er.
ECB00050

CAUTION:
See the starting instructions on page 6-1 prior
to starting the engine.

4-4
 EBU28061 EBU28000
Light switch “ / / ” Hazard switch “ ”
Set the switch to “ ” to turn on the high beam. With the key in the “ON” position, turn this switch
Set this switch to “ ” to turn on the low beam. to “ ” to turn on the hazard lights (simultaneous
Set the switch to “ ” to turn off the headlight. flashing of all turn signal lights).
ECB00030 The hazard lights are used in case of an emergen-
CAUTION: cy or to warn other drivers when your vehicle is
Do not use the headlight with the engine turned stopped where it might be a traffic hazard.
off for an extended period of time, otherwise ECB00860
4
the battery may discharge to the point that the CAUTION:
starter motor will not operate properly. If this Do not use the hazard lights for an extended
should happen, remove the battery and re- length of time with the engine not running, oth-
charge it. erwise the battery may discharge.

EBU27990 EBU28431
Turn signal switch “ / ” On-Command four-wheel-drive switch
To signal a right-hand turn, push this switch “2WD”/“4WD” (4WD model)
to “ ”. To signal a left-hand turn, push this switch This ATV is equipped with a switch to change from
to “ ”. When released, the switch returns to the two-wheel drive to four-wheel drive and vice versa.
center position. To cancel the turn signal lights, Select the appropriate drive according to the ter-
push the switch in after it has returned to the center rain and the conditions.
position. ● “2WD” (two-wheel drive): Power is supplied to
the rear wheels.
EBU18170
● “4WD” (four-wheel drive): Power is supplied to
Horn switch “ ”
Press the switch to sound the horn. the rear and front wheels.

4-5
To change from two-wheel drive to four-wheel circumstances. Changing from two-wheel
drive, stop the ATV and push the switch in to the drive to four-wheel drive or vice versa while
“4WD” position. The four-wheel-drive indicator moving may cause the ATV to unexpectedly
light “ ” comes on. handle differently. This could distract the oper-
To change from four-wheel drive to two-wheel ator and increase the risk of losing control and
drive, stop the ATV and push the switch in to the of causing an accident.
“2WD” position.
EBU18280
Throttle lever 4
Once the engine is running, movement of the throt-
tle lever will increase the engine speed.
Regulate the speed of the ATV by varying the
throttle position. Because the throttle is spring-
loaded, the ATV will decelerate, and the engine will
return to an idle any time the hand is removed from
the throttle lever.

1. On-Command four-wheel-drive switch “2WD”/“4WD”

(4WD model)
EWB00163

WARNING
Always stop the ATV before changing from
two-wheel drive to four-wheel drive and vice
versa. The ATV handles differently in two-
wheel drive than in four-wheel drive in some

4-6
 EBU18321
Speed limiter
Your ATV was delivered with an adjustable speed
limiter. The speed limiter keeps the throttle from
fully opening, even when the throttle lever is
pushed to the maximum.
1. Loosen the locknut.
2. To increase the maximum engine power avail-
4 able and the maximum speed of the ATV, turn
the adjusting screw in direction (a). To de-
crease the maximum engine power available
1. Throttle lever and the maximum speed of the ATV, turn the
adjusting screw in direction (b).
Before starting the engine, check the throttle to be
sure it is operating smoothly. Make sure it returns
to the idle position as soon as the lever is released.
EWB00250

WARNING
Malfunction of the throttle could make it diffi-
cult to speed up or slow down when you need
to. This could cause an accident. Check the op-
eration of the throttle lever before you start the
engine. If the throttle does not work smoothly,
check for the cause. Correct the problem be-
fore riding the ATV or consult a Yamaha dealer. 1. Locknut
2. Adjusting screw
3. No more than 12 mm (0.47 in)

4-7
 3. Tighten the locknut.
EWB00240

WARNING
Improper adjustment of the speed limiter and
throttle could cause throttle cable damage or
improper throttle operation. You could lose
control, have an accident or be injured. Do not
turn the adjusting screw out more than 12 mm
(0.47 in) or the throttle cable could be dam- 4
aged. Always make sure the throttle lever free
play is adjusted to 3.0–5.0 mm (0.12–0.20 in).
(See page 8-25.) 1. Front brake lever

EBU18401
EBU18391
Front brake lever Rear brake lever
The rear brake lever is located on the left handle-
The front brake lever is located on the right handle-
bar. To apply the rear brake, pull the brake lever to-
bar. To apply the front brake, pull the brake lever
ward the handlebar grip.
toward the handlebar grip.

4-8
4

1. Rear brake lever 1. Brake pedal

EBUM0030 EBU18460

Brake pedal Parking brake

The brake pedal is located on the right side of the Use the parking brake before starting the engine or
ATV. parking the ATV, especially on a slope. Apply the
This model is equipped with a unified brake sys- rear brake lever and push down the lock plate to
tem. apply the parking brake. Squeeze the rear brake
When pressing down on the brake pedal, the brak- lever to release the parking brake.
ing force is applied to the rear brake and a portion
of the front brakes. For full braking performance,
apply both the front brake lever and the brake ped-
al simultaneously.

4-9
 EBU18581
Drive select lever
The drive select lever is used to shift your ATV into
the forward, neutral and reverse positions. See the
“Operating the drive select lever and driving in re-
verse” section on page 6-3 for the drive select lever
operation.

1. Parking brake lock plate

EWB00220

WARNING
● Always set the parking brake before starting
the engine. The ATV could start moving un-
expectedly if the parking brake is not ap-
plied. This could cause loss of control or a 1. Drive select lever
collision.
● Always be sure you have released the park- EBU18670

ing brake before you begin to ride. The brake Recoil starter
could overheat if you ride the ATV without re- Firmly grasp the handle and pull slightly until en-
leasing the parking brake. You could lose gagement can be felt. Then pull forcefully, being
braking performance which could cause an careful not to pull the rope all the way out.
accident. You could also wear out the brakes
prematurely.
4-10
4

1. Recoil starter 1. Fuel tank cap

EWB00340
EBU18752
WARNING Fuel
Shift the drive select lever into the neutral po- Make sure that there is sufficient fuel in the tank.
sition and apply the parking brake before start- Fill the fuel tank to the bottom of the filler tube as
ing the engine, otherwise the ATV could start shown.
to move unexpectedly, which could cause an
accident.

EBU18720
Fuel tank cap
Remove the fuel tank cap by turning it counter-
clockwise.

4-11
 NOTE:
If knocking or pinging occurs, use a different brand
of gasoline or higher octane grade.
ECB00070

CAUTION:
Use only unleaded gasoline. The use of leaded
gasoline will cause severe damage to internal
engine parts, such as the valves and piston 4
rings, as well as to the exhaust system.
EWB00310
1. Fuel level WARNING
2. Fuel tank filler tube
● Do not overfill the fuel tank. Fuel expands
Recommended fuel: when it heats up. If the fuel tank is overfilled,
UNLEADED GASOLINE ONLY fuel could spill out due to heat from the en-
For Europe: Regular unleaded gasoline only gine or the sun.
● Be careful not to spill fuel, especially on the
with a research octane number of 91 or high-
er engine or exhaust pipe which can cause a
Fuel tank capacity: fire and severe injury. Wipe up any spilled
13.5 L (3.57 US gal) (2.97 Imp.gal) fuel immediately.
● Do not refuel right after the engine has been
Fuel reserve amount:
3.3 L (0.87 US gal) (0.73 Imp.gal) running and is still very hot.
● Be sure the fuel tank cap is closed securely.

4-12
 EBU18820 ON
Fuel cock
The fuel cock supplies fuel from the tank to the car-
buretor while also filtering it.
The fuel cock lever positions are explained as fol-
lows and shown in the illustrations.

OFF
4

1. Arrow mark pointing to “ON”

With the fuel cock lever in this position, fuel flows

to the carburetor. Turn the fuel cock lever to this
position when starting the engine and riding.

1. Arrow mark pointing to “OFF”

With the fuel cock lever in this position, fuel will not
flow. Always turn the fuel cock lever to this position
when the engine is not running.

4-13
RES Move the starter (choke) in direction (b) to turn off
the starter (choke).
See the “Starting a cold engine” section on page
6-1 for proper operation.

1. Arrow mark pointing to “RES”

This indicates reserve. With the fuel cock lever in

this position, the fuel reserve is made available.
1. Starter (choke) “ ”
Turn the fuel cock lever to this position if you run
out of fuel while riding. When this occurs, refuel as
soon as possible and be sure to turn the fuel cock
lever back to “ON”!
EBU18850
Starter (choke) “ ”
Starting a cold engine requires a richer air-fuel mix-
ture, which is supplied by the starter (choke).
Move the starter (choke) in direction (a) to turn on
the starter (choke).

4-14
 EBU28010 To unlock the steering
Steering lock 1. Open the steering lock cap, and then insert
the key.
2. Turn the key 1/8 turn counterclockwise to re-
lease the lock.
3. Remove the key, and then close the steering
1 lock cap.
2
4 EBU18880
Seat
To remove the seat
Pull the seat lock lever upward and pull up the seat
1. Steering lock cap at the rear.
2. Steering lock

To lock the steering

1. Turn the handlebar all the way to either side.
2. Open the steering lock cap, and then insert
the steering lock key.
3. Turn the key 1/8 turn counterclockwise, push
it in, and then turn the key 1/8 turn clockwise.
4. Check that the steering is locked, remove the
key, and then close the steering lock cap.

1. Seat
2. Seat lock lever

4-15
To install the seat EBU18911

Insert the projections on the front of the seat into Storage compartment
ECB00130
the seat holders and push down on the seat at the
rear. CAUTION:
Do not store metal or sharply edged objects,
NOTE: like tools, in the storage compartment. If they
Make sure that the seat is securely fitted. must be stored, wrap them in appropriate
cushion material to prevent damaging the stor-
age compartment. 4

1. Projection
2. Seat holder

1. Storage compartment

● Do not exceed the load limit of 2.0 kg (4 lb)

for the storage compartment.
● Do not exceed the maximum load of 196.0 kg
(432 lb) for the ATV.

4-16
 EBU18971
NOTE: Rear carrier
There is a check hose at the bottom of the storage ● Do not exceed the load limit of 80.0 kg (176
compartment. If any water collects in this hose, re- lb) for the rear carrier.
move the hose, empty it, and then install it. ● Do not exceed the maximum load of 196.0 kg
(432 lb) for the ATV.
EBU18990

4 Adjusting the front shock absorber as-

semblies
The spring preload can be adjusted to suit the rid-
er’s weight and the riding conditions.
Adjust the spring preload as follows.
Turn the adjusting ring in direction (a) to increase
the spring preload and thereby harden the suspen-
sion, and in direction (b) to decrease the spring
1. Storage compartment check hose
preload and thereby soften the suspension.

EBU18961
Front carrier
● Do not exceed the load limit of 40.0 kg (88 lb)
for the front carrier.
● Do not exceed the maximum load of 196.0 kg
(432 lb) for the ATV.

4-17
 4

1. Spring preload adjusting ring 1. Special wrench

2. Position indicator
Spring preload setting:
NOTE: Minimum (soft):
A special wrench can be obtained at a Yamaha 1
dealer to make this adjustment. Standard:
2
Maximum (hard):
5

4-18
 EWB00400

WARNING
Always adjust the shock absorber assemblies
on the left and right side to the same setting.
Uneven adjustment can cause poor handling
and loss of stability, which could lead to an ac-
cident.
4
EBU19020
Adjusting the rear shock absorber as-
sembly
The spring preload can be adjusted to suit the rid- 1. Spring preload adjusting ring
2. Position indicator
er’s weight and the riding conditions.
Adjust the spring preload as follows.
Turn the adjusting ring in direction (a) to increase NOTE:
the spring preload and thereby harden the suspen- A special wrench can be obtained at a Yamaha
sion, and in direction (b) to decrease the spring dealer to make this adjustment.
preload and thereby soften the suspension.

4-19
 EWBM0010

WARNING
The exhaust system is hot after operation.
Make sure that the exhaust system has cooled
down before doing any maintenance work.
ECBM0010

CAUTION:
The following precautions must be observed to 4
prevent a fire hazard or other damages.
● Use only unleaded gasoline. The use of lead-
ed gasoline will cause unrepairable damage
1. Special wrench
to the catalytic converter.
● Never park the vehicle near possible fire haz-
Spring preload setting:
Minimum (soft): ards such as grass or other materials that
1 easily burn.
● Do not allow the engine to idle too long.
Standard:
2
Maximum (hard):
5

EBUM0150
Catalytic converter
This model is equipped with a catalytic converter in
the exhaust system.

4-20
 EBU19200

PRE-OPERATION CHECKS
EBU19222
Pre-operation check list
Before operating this ATV, be sure to check the items listed in the following table.
EWB00480

WARNING
Always inspect your ATV each time you use it to make sure it is in safe operating condition.
Always follow the inspection and maintenance procedures and schedules described in the Owner’s
5 Manual. Failure to inspect increases the possibility of an accident or equipment damage.

NOTE:
The maintenance of some items in the table has to be performed by a Yamaha dealer. Refer to the periodic
maintenance charts on page 8-3 to determine which service should be performed by a Yamaha dealer.

ITEM ROUTINE PAGE

• Check fuel level in fuel tank, and add recommended fuel if neces-
Fuel sary. 4-11, 5-3
• Check fuel line for leakage. Correct if necessary.
• Check oil level in engine, and add recommended oil to specified lev-
Engine oil el if necessary. 5-3, 8-11
• Check ATV for oil leakage. Correct if necessary.
Differential gear oil (for
• Check ATV for oil leakage. Correct if necessary. 5-3, 8-18
four-wheel-drive models)
Final gear oil • Check ATV for oil leakage. Correct if necessary. 5-3, 8-15

5-1
 ITEM ROUTINE PAGE
• Check operation. If soft or spongy, have Yamaha dealer bleed hy-
draulic system.
• Check brake pads for wear, and replace if necessary.
Hydraulic brake system 5-3, 8-26, 8-27, 8-29
• Check brake fluid level in reservoirs, and add recommended brake
fluid to specified level if necessary.
• Check hydraulic system for leakage. Correct if necessary.
• Check operation, and correct if necessary.
Rear brake • Lubricate cables if necessary. 5-3, 8-26, 8-29
• Check lever and pedal free play, and adjust if necessary.
• Make sure that operation is smooth. Lubricate cable and lever hous-
Throttle lever ing if necessary. 5-4, 8-25
• Check cable free play, and adjust if necessary.
5
Control cables • Make sure that operation is smooth. Lubricate if necessary. 8-32
• Check wheel condition, and replace if damaged.
Wheels and tires • Check tire condition and tread depth. Replace if necessary. 5-4, 5-5, 5-6
• Check air pressure. Correct if necessary.
• Make sure that operation is smooth. Lubricate pedal pivoting point if
Brake pedal 8-33
necessary.
• Make sure that operation is smooth. Lubricate lever pivoting points if
Brake levers 8-32
necessary.
Axle boots • Check for cracks or damage, and replace if necessary. 8-31
Chassis fasteners • Make sure that all nuts, bolts and screws are properly tightened. 5-7
Instruments, lights and
• Check operation, and correct if necessary. 5-7
switches

5-2
 EBU19540 EBU19600
Fuel Differential gear oil (4WD model)
Make sure that there is sufficient fuel in the tank. Make sure that the differential gear oil is at the
(See page 4-11.) specified level. Add oil as necessary. (See page
EWB00520 8-18.)
WARNING
EBUM0061
● Do not overfill the fuel tank. Fuel expands
when it heats up. If the fuel tank is overfilled,
Front and rear brakes
fuel could spill out due to heat from the en- Brake levers and brake pedal
gine or the sun. ● Check that there is no free play in the front brake
5 ● Be careful not to spill fuel, especially on the lever. If there is free play, have a Yamaha dealer
engine or exhaust pipe which can cause a check the brake system.
fire and severe injury. Wipe up any spilled ● Check for correct free play in the rear brake lever
fuel immediately. and brake pedal. If the free play is incorrect, ad-
● Do not refuel right after the engine has been just it. (See page 8-29.)
running and is still very hot. ● Check operation of the levers and pedal. They
● Be sure the fuel tank cap is closed securely. should move smoothly and there should be a
firm feeling when the brake is applied. If not,
EBU19560
have a Yamaha dealer check them.
Engine oil
Make sure that the engine oil is at the specified lev- Brake fluid level (front brake and brake equal-
el. Add oil as necessary. (See page 8-11.) izer system)
EBU19590
Check the brake fluid level. Add fluid if necessary.
Final gear oil (See page 8-27.)
Make sure that the final gear oil is at the specified
level. Add oil as necessary. (See page 8-15.)
5-3
 problem cannot be corrected by the adjust-
Recommended brake fluid:
ment procedures provided in this manual, have
DOT 4
a Yamaha dealer check for the cause.
Brake fluid leakage (front brake and brake
EBU19761
equalizer system) Throttle lever
Check to see if any brake fluid is leaking out of the
Check the operation of the throttle lever. It must
hoses, joints or brake fluid reservoirs of the front
open smoothly and spring back to the idle position
brake and brake equalizer system. Apply the brake
when released. Have a Yamaha dealer correct if
firmly for one minute. If the lever moves slowly in-
necessary.
ward, there may be a leak in the brake system. If 5
there is any leakage, the brake system should be EBU28080
checked by a Yamaha dealer. Tires
EWB02390

Brake operation WARNING

Test the brakes at slow speed after starting out to Use of improper tires on this ATV, or operation
make sure they are working properly. If the brakes of this ATV with improper or uneven tire pres-
do not provide proper braking performance, check sure, may cause loss of control, increasing
the brake pads and shoes for wear. (See page your risk of accident.
8-26.) Pay attention to the following.
EWB00580
● The tires listed below have been approved
WARNING by MBK INDUSTRIE for this model. Other tire
Always check the brakes at the start of every combinations are not recommended.
ride. Do not ride the ATV if you find any prob- Front:
lem with the brakes or you could lose braking Manufacturer/model:
ability, which could lead to an accident. If a MAXXIS/M911Y

5-4
 Size: Minimum tire pressure:
AT25 x 8-12 31J Front:
Type: 22.0 kPa (3.2 psi) (0.220 kgf/cm²)
Tubeless Rear:
Rear: 22.0 kPa (3.2 psi) (0.220 kgf/cm²)
Manufacturer/model: • Use no more than the following pressures
MAXXIS/M912Y when seating the tire beads.
Size: Maximum tire seating pressure:
AT25 x 10-12 38J Front:
Type: 250 kPa (36 psi) (2.5 kgf/cm²)
5
Tubeless Rear:
● The tires should be set to the recommended 250 kPa (36 psi) (2.5 kgf/cm²)
pressure: Higher pressures and fast inflation may
Recommended tire pressure: cause a tire to burst. Inflate the tires very
Front: slowly and carefully.
25.0 kPa (3.6 psi) (0.250 kgf/cm²)
Rear: EBU19820
25.0 kPa (3.6 psi) (0.250 kgf/cm²) Measuring the tire pressure
• Check and adjust tire pressures when the Use the low-pressure tire gauge.
tires are cold.
NOTE:
• Tire pressures must be equal on both
The low-pressure tire gauge is included as stan-
sides.
dard equipment. Make two measurements of the
• Tire pressure below the minimum speci-
tire pressure and use the second reading. Dust or
fied could cause the tire to dislodge from
dirt in the gauge could cause the first reading to be
the rim under severe riding conditions.
incorrect.

5-5
 Recommended pressure:
Front
25.0 kPa (3.6 psi) (0.250 kgf/cm²)
Rear
25.0 kPa (3.6 psi) (0.250 kgf/cm²)
Minimum:
Front
22.0 kPa (3.2 psi) (0.220 kgf/cm²)
Rear
22.0 kPa (3.2 psi) (0.220 kgf/cm²) 5
Maximum:
1. Low-pressure tire gauge Front
Set the tire pressure when the tires are cold. Set 28.0 kPa (4.1 psi) (0.280 kgf/cm²)
the tire pressures to the following specifications: Rear
28.0 kPa (4.1 psi) (0.280 kgf/cm²)

EBU19830
Tire wear limit
Replace the tire when the tire groove decreases to
3 mm (0.12 in).

5-6
5
1. Tire wear limit

EBU19840
Chassis fasteners
Make sure that all nuts, bolts and screws are prop-
erly tightened.
EBU19850
Instruments, lights and switches
Check that all instruments, lights and switches are
working properly. Correct if necessary.

5-7
EBU19880

OPERATION
EBU19900 ECB00150

CAUTION:
Read the Owner’s Manual carefully before riding See the “Engine break-in” section on page 6-4
the ATV. prior to operating the engine for the first time.
EWB00630

WARNING 1. Set the parking brake.

Read the Owner’s Manual carefully to become 2. Turn the fuel cock to “ON”.
familiar with all controls in order to help pre- 3. Turn the main switch to “ON” and the engine
vent any loss of control, which could cause an stop switch to “ ”.
accident or injury. If there is a control or func- 4. Shift the drive select lever into the neutral po- 6
tion you do not understand, ask your Yamaha sition. The neutral indicator light should come
dealer. on. If the indicator light does not come on,
have a Yamaha dealer check the electrical cir-
EBU20031
cuit.
Starting a cold engine NOTE:
EWB00640
The engine can be started under the following con-
WARNING ditions:
Always make sure all control cables work ● The drive select lever is in the neutral position.
smoothly before you begin riding in cold ● The rear brake lever is applied with the drive se-
weather. If the control cables are frozen or do lect lever in any position. However, it is recom-
not work smoothly, you could be unable to mended to shift into the neutral position before
control the ATV, which could lead to an acci- starting the engine.
dent or collision.

6-1
 5. Use the starter (choke) in reference to the fig- 6. Completely close the throttle lever and start
ure: the engine by pushing the start switch.
Position (1):
NOTE:
Cold engine start with ambient temperature
● If the engine fails to start, release the start
below 5 °C (40 °F).
switch, then push it again. Pause a few seconds
Position (2):
before the next attempt. Each cranking should
Cold engine start with ambient temperature
be as short as possible to preserve battery ener-
between 0 °C (30 °F) and 30 °C (90 °F).
gy. Do not crank the engine more than 10 sec-
Position (3):
onds on each attempt.
Cold engine start with ambient temperature
● If the battery is discharged, pull the recoil starter
above 25 °C (80 °F).
to start the engine.
6 Ambient temp./starter (choke) position
7. If the engine is started with the starter (choke)
in position (1), the starter (choke) should be
returned to position (2) to warm up the engine.
If the engine is started with the starter (choke)
in position (2), keep the starter (choke) in this
position to warm up the engine.
ECB00160

CAUTION:
For maximum engine life, always warm the en-
gine up before starting off. Never accelerate
hard when the engine is cold!
1. Fully open 8. Continue warming up the engine until it idles
2. Half open
smoothly, then return the starter (choke) to
3. Closed
position (3) before riding.
4. Starter (choke)
6-2
NOTE: NOTE:
The engine is warm when it responds normally to Make sure that the drive select lever is completely
the throttle with the starter (choke) turned off. shifted into position.

EBU20291
Starting a warm engine
Follow the same procedure as for starting a cold
engine, with the exception that the starter (choke)
is not required when the engine is warm. Instead,
start the engine with the throttle slightly open.
EBU20380
6
Operating the drive select lever and
driving in reverse
ECB00170

CAUTION: 1. Drive select lever

2. F (Forward)
Before shifting, stop the ATV, otherwise the 3. N (Neutral)
transmission may be damaged. 4. R (Reverse)

Shifting: Forward 3. Open the throttle lever gradually.

1. Bring the ATV to a complete stop.
Shifting: Reverse
2. Shift from neutral to forward and vice versa by
1. Bring the ATV to a complete stop.
moving the drive select lever along the shift
2. Apply the brake pedal.
guide.

6-3
 3. Shift from neutral to reverse and vice versa by 5. Open the throttle lever gradually and continue
moving the drive select lever along the shift to watch to the rear while backing.
guide. EWB00720

WARNING
NOTE:
Improper operation in reverse could make you
When in reverse, the reverse indicator light should
hit an obstacle or even a person behind you,
come on. If the indicator light does not come on,
resulting in serious injury. When you shift into
have a Yamaha dealer check the electrical circuit.
reverse, make sure there are no people or ob-
stacles behind you. When it is safe to proceed,
go slowly.

EBU20682
6
Engine break-in
NOTE:
● For ATVs equipped with an odometer or an hour
meter, follow the figures given in km (mi) or the
figures given in hours.
● For ATVs not equipped with an odometer or

1. Drive select lever

hour meter, follow the figures given in hours.
2. F (Forward) There is never a more important period in the life of
3. N (Neutral) your engine than the first 320 km (200 mi) or 20
4. R (Reverse)
hours of riding. For this reason, you should read
4. Check behind for people or obstacles, and the following material carefully.
then release the brake pedal. Since the engine is brand new, do not put an ex-
cessive load on it for the first 320 km (200 mi) or 20
hours. The various parts in the engine wear and
6-4
polish themselves to the correct operating clear- EBU20700

ances. During this period, prolonged full-throttle Parking

operation or any condition that might result in en- When parking the ATV, stop the engine, shift the
gine overheating must be avoided. drive select lever into the forward position, apply
the parking brake, and then turn the fuel cock to
0–160 km (0–100 mi) or 0–10 hours “OFF”.
Avoid prolonged operation above 1/2 throttle. Vary
the speed of the ATV regularly. Do not operate it at
one set throttle position.

160–320 km (100–200 mi) or 10–20 hours

Avoid prolonged operation above 3/4 throttle. Rev
the engine freely, but do not use full throttle at any 6
time.

320 km (200 mi) or 20 hours and beyond

The ATV can now be operated normally.
ECB00220
1. Parking brake lock plate
CAUTION:
If any engine trouble should occur during the EBU20760

engine break-in period, immediately have a Parking on a slope

EWB00830
Yamaha dealer check the ATV.
WARNING
Avoid parking on hills or other inclines. Park-
ing on a hill or other incline could cause the
ATV to roll out of control, increasing the
chance of an accident. If you must park on an
6-5
 incline, place the ATV transversely across the EBU20910

incline, shift the drive select lever to the for- Accessories and loading
ward position, stop the engine, apply the park- EBU20920
ing brake, and then block the front and rear Accessories
wheels with rocks or other objects. Accessories can affect the handling and control of
Do not park the ATV at all on hills that are so your ATV. Keep the following in mind when consid-
steep you could not walk up them easily. ering an accessory or operating an ATV which has
1. Bring the ATV to a stop by applying the brakes accessories.
in the forward position. ● Choose only accessories designed for your
2. Stop the engine. ATV. Your Yamaha dealer has a variety of gen-
3. With the rear brake lever and pedal applied, uine Yamaha accessories. Other accessories
6 apply the parking brake, and then slowly re- may also be available on the market. However,
lease the brake pedal. it is not possible for Yamaha to test all non-
Yamaha accessories, nor control over their qual-
ity or suitability. Choose a genuine Yamaha ac-
cessory, or one that is equivalent in design and
quality.
● Accessories should be rigidly and securely
mounted. An accessory which can shift position
or come off while you are riding could affect your
ability to control the ATV.
● Do not mount an accessory where it could inter-
fere with your ability to control the ATV. Exam-
ples include (but are not limited to) a heavy or
bulky object attached to the handlebars which

6-6
 could make steering difficult, an accessory that
NOTE:
limits your ability to move around on the seat, or
Never exceed the maximum tongue weight (verti-
one that limits your view.
cal weight on trailer hitch point) of 147 N (33 lbf)
● Use extra caution when riding an ATV with ac-
(15 kgf). When the ATV is registered and has been
cessories. The ATV may handle differently than
issued a license plate, it is prohibited to tow more
it does without accessories.
than 50% of the ATV’s curb weight.
EBUM0071
● Do not exceed the maximum tongue weight.
Loading
You can measure tongue weight with a bath-
Cargo or a trailer can change the stability and han-
room scale. Put the tongue of the loaded trailer
dling of an ATV.
on the scale with the tongue at hitch height. Ad-
You must use common sense and good judgment
just the load in the trailer, if necessary, to reduce
when carrying cargo. Keep the following points in 6
the weight on the hitch. If you are carrying cargo
mind:
and towing a trailer, include the tongue weight in
● Never exceed the weight limits shown. An over-
the maximum ATV load limit.
loaded ATV can be unstable.
● Load cargo on the carriers as close to the center
MAXIMUM LOADING LIMIT of the ATV as possible. Put cargo at the rear of
ATV loading limit (total weight of rider, cargo, the front carrier, at the front of the rear carrier,
and accessories): and center it.
● Tie down cargo securely to the carriers. Make
196.0 kg (432 lb)
Front carrier: sure cargo in the trailer cannot move around. A
40.0 kg (88 lb) shifting load can cause an accident.
● Make sure the load does not interfere with con-
Rear carrier:
80.0 kg (176 lb) trols or your ability to see where you are going.
● Ride more slowly than you would without a load.
Storage compartment:
2.0 kg (4 lb) The more weight you carry, the slower you
should go.
6-7
 ● Allow more braking distance. A heavier ATV
takes longer to stop.
● Avoid making sharp turns unless at very slow
speeds.
● Avoid hills and rough terrain. Choose terrain
carefully. Added weight affects the stability and
handling of the ATV.
EWB00820

WARNING
Never exceed the stated load capacity for this
ATV. Overloading this ATV or carrying or tow-
6 ing cargo improperly could cause changes in
ATV handling which could lead to an accident.
Cargo should be properly distributed and se-
curely attached. Reduce speed when carrying
cargo or pulling a trailer. Allow greater dis-
tance for braking.

6-8
EBU21141

RIDING YOUR ATV

7-1
 EBUM0084 RIDE WITH CARE AND GOOD JUDGEMENT

Get training if you are inexperienced.

GETTING TO KNOW YOUR ATV Beginners should get training from a certified in-
This ATV is for recreation and utility use. This sec- structor.
tion, Riding your ATV, provides general ATV riding Become familiar with this ATV at slow speeds first,
instructions for recreational riding. The skills and even if you are an experienced operator. Do not at-
techniques described in this section, however, are tempt to operate at maximum performance until
appropriate for all types of riding. Riding your ATV you are totally familiar with the ATV’s handling and
requires special skills acquired through practice performance characteristics.
over a period of time. Take the time to learn the ba- EWB01380
sic techniques well before attempting more difficult WARNING
maneuvers. Never operate this ATV without proper instruc-
Riding your new ATV can be a very enjoyable ac- tion. Beginning and inexperienced operators
7 tivity, providing you with hours of pleasure. But it is should regularly practice the skills and the op-
essential to familiarize yourself with the operation erating techniques described in this Owner’s
of the ATV to achieve the skill necessary to enjoy Manual. The risk of an accident is greatly in-
riding safely. Before you begin to ride, be sure you creased if the operator does not know how to
have read this Owner’s Manual completely and un- operate the ATV properly in different situations
derstand the operation of the controls. Pay partic- and on different types of terrain.
ular attention to the safety information on pages
1-1–1-4. Please also read all caution and warning
Riding your ATV requires skills acquired
labels on your ATV.
through practice over a period of time.
Take the time to learn the basic techniques well
before attempting more difficult maneuvers.

7-2
Not recommended for children under 16 years This ATV is designed to carry operator and car-
of age. go only – passengers prohibited.
EWB01390 EWB01400

WARNING WARNING
A child under 16 should never operate an ATV Never carry a passenger. The long seat is to al-
with engine size greater than 90 cc. Use by chil- low the operator to shift position as needed
dren of ATVs that are not recommended for during operation. It is not for carrying passen-
their age can lead to severe injury or death of gers. Carrying a passenger on this ATV greatly
the child. reduces your ability to balance and control this
ATV. It could cause an accident, resulting in
harm to you and/or your passenger.

<16 7

7-3
 Apparel
Always wear an approved motorcycle helmet that
fits properly.
You should also wear:
● eye protection (goggles or face shield)
● gloves
● boots
● long-sleeved shirt or jacket
● long pants

1. Protective clothing
2. Goggles
3. Gloves
4. Boots
5. Helmet

7-4
EWB01410

WARNING
Never operate this ATV without wearing an ap-
proved motorcycle helmet, eye protection and
protective clothing. Operating without an ap-
proved motorcycle helmet increases your
chances of a severe head injury or death in the
event of an accident. Operating without eye
protection can result in an accident and in-
creases your chances of a severe injury in the
event of an accident. Operating without protec-
EWB01420
tive clothing increases your chances of severe
injury in the event of an accident. WARNING
Never consume alcohol or drugs before or 7
Do not operate after consuming alcohol or while driving this ATV.
drugs.
The operator’s performance capability is reduced Pre-operation checks
by the influence of alcohol or drugs. Always perform the pre-operation checks listed on
page 5-1 before riding for proper care of the ATV
and to ensure safety.
EWB01430

WARNING
Always inspect your ATV each time you use it
to make sure the ATV is in safe operating con-
dition. Always follow the inspection and main-
tenance procedures and schedules described

7-5
 in the Owner’s Manual. Failure to inspect the Speed limiter
ATV before operating or failure to properly For riders less experienced with this model, the
maintain the ATV increases the possibility of throttle lever housing is equipped with a speed lim-
an accident or equipment damage. iter. The speed limiter keeps the throttle from fully
EWB01440 opening, even when the throttle lever is pushed to
WARNING the maximum. Turning in the adjusting screw limits
the maximum engine power available and de-
Always use the size and type tires specified in
creases the maximum speed of the ATV. Turning
the Owner’s Manual for this ATV on page 5-4.
in the adjusting screw decreases top speed, and
Always maintain proper tire pressure as de-
turning it out increases top speed. (See page 4-7.)
scribed in the Owner’s Manual on page 5-5.
Use of improper tires on this ATV, or operation
of this ATV with improper or uneven tire pres-
sure, may cause loss of control, increasing
7 your risk of an accident.

Do not operate at speeds too fast for your skills

or the conditions.
EWB01450

WARNING
Always go at a speed that is proper for the ter-
rain, visibility and operating conditions, and 1. Adjusting screw
your experience. Operating this ATV at speeds
too fast for your skills or the conditions in-
creases your chances of losing control of the
ATV, which can result in an accident.

7-6
Loading and accessories EWB01460

Use extra caution when riding the ATV with addi- WARNING
tional loads, such as accessories or cargo. The ● Never exceed the stated load capacity for
ATV’s handling may be adversely affected. Re- this ATV.
duce your speed when adding additional loads. ● Cargo should be properly distributed and se-
curely attached.
MAXIMUM LOADING LIMIT ● Reduce speed when carrying cargo or pull-
ATV loading limit (total weight of cargo, rider, ing a trailer. Allow greater distance for brak-
and accessories): ing.
196.0 kg (432 lb) ● Always follow the instructions in your Own-
Front carrier: er’s Manual for carrying cargo or pulling a
40.0 kg (88 lb) trailer.
Rear carrier:
80.0 kg (176 lb) During operation 7
Storage compartment: Always keep your feet on the footboards during op-
2.0 kg (4 lb) eration, otherwise they may contact the rear
wheels.
NOTE:
Never exceed the maximum tongue weight (verti-
cal weight on trailer hitch point) of 147 N (33 lbf)
(15 kgf). When the ATV is registered and has been
issued a license plate, it is prohibited to tow more
than 50% of the ATV’s curb weight.

7-7
 Avoid wheelies and jumping. You may lose control
of the ATV or overturn.
EWB01480

WARNING
Never attempt stunts, such as wheelies or
jumps. Don’t try to show off.

7 EWB01470

WARNING
Always keep both hands on the handlebars
and both feet on the footboards of your ATV
during operation. Removing even one hand or Modifications
foot can reduce your ability to control the ATV EWB01490
or could cause you to lose your balance and WARNING
fall off of the ATV. If you remove a foot from a Never modify this ATV through improper in-
footboard, your foot or leg may come into con- stallation or use of accessories. All parts and
tact with the rear wheels, which could injure accessories added to this ATV should be gen-
you or cause an accident. uine Yamaha or equivalent components de-
signed for use on this ATV and should be

7-8
installed and used according to instructions.
Improper installation of accessories or modifi-
cation of this ATV may cause changes in han-
dling which in some situations could lead to an
accident. If you have questions, consult an au-
thorized ATV dealer.

Exhaust system
The exhaust system on the ATV is very hot during
and following operation. To prevent burns, avoid
touching the exhaust system. Park the ATV in a
place where pedestrians or children are not likely
BE CAREFUL WHERE YOU RIDE
to touch it. Also, avoid parking in or around dry
This ATV is designed for use on unpaved surfaces
grass, brush or other combustible materials to pre- 7
only. Riding on paved surfaces can cause loss of
vent causing a fire hazard.
EWB01500
control.
EWB01510
WARNING
WARNING
● Do not touch the hot exhaust system.
Always avoid paved surfaces, including side-
● Do not park the ATV during or after operation
walks, driveways, parking lots and streets.
in a place where others might be likely to
ATVs are designed for use on unpaved surfac-
touch it.
es only. Paved surfaces may seriously affect
● Do not operate, idle, or park the ATV in dry
handling and control of the ATV, and may
grass, dry ground cover, or combustible ma-
cause the ATV to go out of control.
terials.

7-9
 EWB01520

WARNING
Never operate this ATV on any paved street,
paved road or motorway. You can collide with
another vehicle. In many areas, it is illegal to
operate ATVs on public streets, roads and
highways.

While riding on unpaved public streets or roads

may be legal in your area, such operation can in-
crease the risk of collision with other vehicles.
Watch carefully for other vehicles. Make sure you
know your country’s laws and regulations before
you ride on unpaved public streets or roads. Do not Know the terrain where you ride. Ride cautiously in
ride on any paved public street, road or motorway. unfamiliar areas. Stay alert for holes, rocks, or
roots in the terrain, and other hidden hazards
which may cause the ATV to upset.

7-10
EWB01530 ATV on such terrain. Failure to use extra care
WARNING when operating on excessively rough, slippery
Go slowly and be extra careful when operating or loose terrain could cause loss of traction or
on unfamiliar terrain. Always be alert to chang- ATV control, which could result in an accident,
ing terrain conditions when operating the ATV. including an overturn.

When riding in an area where you might not easily

be seen, such as desert terrain, mount a caution
EWB01540
flag on the ATV. DO NOT use the flag pole bracket
WARNING as a trailer hitch.
Do not operate on excessively rough, slippery
or loose terrain until you have learned and
practiced the skills necessary to control the
7-11
 Select a large, flat, unpaved area to become famil-
iar with your ATV. Make sure that this area is free
7 EWB01550
of obstacles and other riders. You should practice
WARNING control of the throttle, brakes, and turning tech-
niques in this area before trying more difficult ter-
Always mount a caution flag on the ATV to
rain. Always avoid riding on paved surfaces: the
make you more visible when operating in areas
ATV is designed for use on unpaved surfaces only,
where you might not be seen by other vehicles.
and handling maneuvers are more difficult to per-
Watch carefully for other vehicles.
form on pavement.
Do not ride in areas posted “no trespassing”. Set the parking brake and follow the instruction on
Do not ride on private property without getting per- page 6-1 to start the engine. Once it has warmed
mission. up you are ready to begin riding your ATV. Re-
member that the engine and exhaust pipe will be
hot when riding and afterwards; do not allow skin
or clothing to come in contact with these compo-
nents.
7-12
With the engine idling, return the starter (choke) to EWB01570

the closed position, shift the drive select lever into WARNING
the forward position, and then release the parking Always follow proper procedures for turning
brake. Apply the throttle slowly and smoothly. The as described in this Owner’s Manual. Practice
centrifugal clutch will engage and you will start to turning at low speeds before attempting to turn
accelerate. If the throttle is applied too abruptly, the at faster speeds. Do not turn at speeds too fast
front wheels may lift off the ground, resulting in a for your skills or the conditions.
loss of directional control. Avoid higher speeds un-
As you approach a curve, slow down and begin to
til you are thoroughly familiar with the operation of
turn the handlebars in the desired direction. As you
your ATV.
do so, put your weight on the footboard to the out-
When slowing down or stopping, release the throt-
side of the turn (opposite your desired direction)
tle and apply the brakes smoothly and evenly. Im-
and lean your upper body into the turn. Use the
proper use of the brakes can cause the tires to lose
throttle to maintain an even speed through the turn.
traction, reducing control and increasing the possi- 7
This maneuver will let the wheel on the inside of
bility of an accident.
the turn slip slightly, allowing the ATV to make the
TURNING YOUR ATV turn properly.
To achieve maximum traction on unpaved surfac-
es, the two rear wheels are mounted solidly on one
axle and turn together at the same speed. There-
fore, unless the wheel on the inside of the turn is al-
lowed to slip or lose some traction, the ATV will
resist turning. A special turning technique must be
used to allow the ATV to make turns quickly and
easily. It is essential that this skill be learned first at
low speed.

7-13
 Improper riding procedures such as abrupt throttle
changes, excessive braking, incorrect body move-
ments, 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 necessary to
gradually let off on the throttle and steer to the out-
side of the turn to avoid tipping over.
Remember: Avoid higher speeds until you are
thoroughly familiar with the operation of your ATV.

CLIMBING UPHILL
Use proper riding techniques to avoid ATV over-
1. Lean towards inside of turn.
turns on hills. Be sure that you can maneuver your
7 2. Support your weight on the outer footboard.
ATV well on flat ground before attempting any in-
This procedure should be practiced at slow speed cline and then practice riding first on gentle slopes.
many times in a large unpaved area with no obsta- Try more difficult climbs only after you have devel-
cles. If an incorrect technique is used, your ATV oped your skill. In all cases avoid inclines with slip-
may continue to go straight. If the ATV doesn’t pery or loose surfaces, or obstacles that might
turn, come to a stop and then practice the proce- cause you to lose control.
dure again. If the riding surface is slippery or loose,
it may help to position more of your weight over the
front wheels by moving forward on the seat.
Once you have learned this technique, you should
be able to perform it at higher speeds or in tighter
curves.

7-14
EWB01580 ● Never go over the top of any hill at high
WARNING speed. An obstacle, a sharp drop, or another
Never operate the ATV on hills too steep for the vehicle or person could be on the other side
ATV or for your abilities. The ATV can overturn of the hill.
more easily on extremely steep hills than on
level surfaces or small hills. Practice on small-
er hills before attempting large hills.
It is important when climbing a hill to make sure
that your weight is transferred forward on the ATV.
This can be accomplished by leaning forward and,
on steeper inclines, standing on the footboards
and leaning forward over the handlebars.
EWB01670

WARNING 7
● Always follow proper procedures for climb-
ing hills as described in this Owner’s Manu-
al.
● Always check the terrain carefully before
you start up any hill.
● Never climb hills with excessively slippery or If you are climbing a hill and you find that you have
loose surfaces. not properly judged your ability to make it to the
● Shift your weight forward. top, you should turn the ATV around while you still
● Never open the throttle suddenly. The ATV have forward motion (provided you have the room
could flip over backwards. to do so) and go down the hill.

7-15
 EWB01600

WARNING
Never attempt to turn the ATV around on any
hill until you have mastered the turning tech-
nique 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.
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. If your ATV has stalled or stopped and you believe
7 ● Shift your weight to the uphill side of the you can continue up the hill, restart carefully to
ATV. make sure you do not lift the front wheels which
could cause you to lose control. If you are unable
to continue up the hill, dismount the ATV on the up-
hill side. Physically turn the ATV around and then
descend the hill.
If you start to roll backwards, DO NOT apply either
brake abruptly. If you are in 2WD, apply only the
front brake. If you are in 4WD (for four-wheel-drive
models), because all wheels are interconnected by
the drive train, applying either brake will brake all
wheels, therefore, avoid sudden application of ei-
ther the front or rear brake as the wheels on the up-

7-16
hill side could come off the ground. The ATV could
easily tip over backwards. Apply both the front and
rear brakes gradually, or dismount the ATV imme-
diately on the uphill side.
EWB01791

WARNING
Maintain a steady speed when climbing a hill.
If you lose all forward speed:
● Keep weight uphill.
● Apply the brakes.
● Apply the parking brake after you are
stopped.
If you begin rolling backwards: RIDING DOWNHILL
● Keep weight uphill. 7
When riding your ATV downhill, shift your weight
● 2WD: Never apply the rear brake while rolling
as far to the rear and uphill side of the ATV as pos-
backwards. Apply the front brake. When fully sible. Move back on the seat and sit with your arms
stopped, apply the rear brake as well, and straight. Engine compression will do most of the
then lock the parking brake. braking for you. For maximum engine compres-
● 4WD: Apply both front and rear brakes grad-
sion braking effect, change to 4WD (for four-
ually. When fully stopped, lock the parking wheel-drive models), before beginning to descend
brake. the hill. Improper braking may cause a loss of trac-
Dismount on uphill side or to a side if pointed tion.
straight uphill. Turn the ATV around and re- Use caution while descending a hill with loose or
mount, following the procedure described in slippery surfaces. Braking ability and traction may
the Owner’s Manual. be adversely affected by these surfaces. Improper
braking may also cause a loss of traction.
7-17
 When this ATV is in 4WD (for four-wheel-drive ● Avoid going down a hill at an angle that
models), all wheels (front and rear) are intercon- would cause the ATV to lean sharply to one
nected by the drive train. This means that applying side. Go straight down the hill where possi-
either the front brake or the rear brake will brake all ble.
wheels. When descending hills, using either brake
lever or the brake pedal will brake the wheels on
the downhill side. Avoid sudden application of ei-
ther the front or rear brake because the wheels on
the uphill side could come off the ground. Apply
both the front and rear brakes gradually.
Whenever possible, ride your ATV straight down-
hill. Avoid sharp angles which could allow the ATV
to tip or roll over. Carefully choose your path and
7 ride no faster than you will be able to react to ob-
stacles which may appear.
EWB01620

WARNING
Always follow proper procedures for going
down hills as described in this Owner’s Manu-
al.
Note: a special technique is required when CROSSING A SLOPE
braking as you go down a hill. Traversing a sloping surface on your ATV requires
● Always check the terrain carefully before you to properly position your weight to maintain
you start down any hill. proper balance. Be sure that you have learned the
● Shift your weight backward. basic riding skills on flat ground before attempting
● Never go down a hill at high speed.

7-18
to cross a sloping surface. Avoid slopes with slip- ● Shift your weight to the uphill side of the
pery surfaces or rough terrain that may upset your ATV.
balance.
As you travel across a slope, lean your body in the
uphill direction. It may be necessary to correct the
steering when riding on loose surfaces by pointing
the front wheels slightly uphill. When riding on
slopes, be sure not to make sharp turns either up
or down hill.
If your ATV does begin to tip over, gradually steer
in the downhill direction if there are no obstacles in
your path. As you regain proper balance, gradually
steer again in the direction you wish to travel.
EWB01631
7
WARNING
Never attempt to turn the ATV around on any
hill until you have mastered the turning tech-
nique as described in the Owner’s Manual on CROSSING THROUGH SHALLOW WATER
level ground. Be very careful when turning on The ATV can be used to cross slow moving, shal-
any hill. Avoid crossing the side of a steep hill low water of up to a maximum of 35 cm (14 in) in
if possible. depth. Before entering the water, choose your path
When crossing the side of a hill: carefully. Enter where there is no sharp drop off,
● Always follow proper procedures as de- and avoid rocks or other obstacles which may be
scribed in the Owner’s Manual. slippery or upset the ATV. Drive slowly and care-
● Avoid hills with excessively slippery or loose fully.
surfaces.

7-19
 EWB01640 Test your brakes after leaving the water. Do not
WARNING continue to ride your ATV without verifying that you
Never operate this ATV in fast flowing water or have regained proper braking ability.
in water deeper than that specified in your
Owner’s 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 the lin-
ings. If the ATV is operated through deep or
fast flowing water, the tires may float, causing
loss of traction and loss of control, which
could lead to an accident.

ECB00280

CAUTION:
After riding your ATV in water, be sure to drain
the trapped water by removing the check hose
at the bottom of the air filter case, the V-belt
cooling duct check hose, the drive select lever
box check hose and the storage compartment
check hose. Also, remove the V-belt case drain

7-20
plug to drain any water that may have accumu-
lated. Wash the ATV in fresh water if it has been
operated in salt water or muddy conditions.

1. V-belt cooling duct check hose (left front side of ATV)

7
1. Air filter case check hose

1. Drive select lever box check hose

7-21
 RIDING OVER ROUGH TERRAIN
Riding over rough terrain should be done with cau-
tion. Look out for obstacles which could cause
damage to the ATV or could lead to an upset or ac-
cident. Be sure to keep your feet firmly mounted on
the footboards at all times. Avoid jumping the ATV
as loss of control and damage to the ATV may re-
sult.
EWB01650

WARNING
Before operating in a new area, check for ob-
1. Storage compartment check hose stacles. Never attempt to ride over large obsta-
cles, such as large rocks or fallen trees. When
7 you go over obstacles, always follow proper
procedures as described in the Owner’s Manu-
al.

SLIDING AND SKIDDING

Care should be used when riding on loose or slip-
pery surfaces since the ATV may slide. If unex-
pected and uncorrected, sliding could lead to an
accident.
To reduce the tendency for the front wheels to slide
1. V-belt case drain plug in loose or slippery conditions, positioning your
weight over the front wheels will sometimes help.

7-22
If the rear wheels of your ATV start to slide side-
ways, control can usually be regained (if there is With practice, over a period of time, skill at con-
room to do so) by steering in the direction of the 7
trolled sliding can be developed. The terrain
slide. Applying the brakes or accelerating is not should be chosen carefully before attempting such
recommended until you have corrected the slide. maneuvers, since both stability and control are re-
duced. Bear in mind that sliding maneuvers should
always be avoided on extremely slippery surfaces
such as ice, since all control may be lost.
EWB01661

WARNING
Learn to safely control skidding or sliding by
practicing at low speeds and on level, smooth
terrain.

7-23
 On extremely slippery surfaces, such as ice, ● If your ATV can’t make it up a hill you are trying
go slowly and be very cautious in order to re- to climb:
duce the chance of skidding or sliding out of Turn the ATV around if you still have forward
control. speed. If not, stop, dismount on the uphill side of
the ATV and physically turn the ATV around. If
WHAT TO DO IF... the ATV starts to slip backwards, DO NOT USE
This section is designed to be a reference guide THE REAR BRAKE IF THE ATV IS IN 2WD –
only. Be sure to read each section on riding tech- the ATV may tip over on top of you. Dismount
niques completely. the ATV on the uphill side. (See page 7-14.)
● If your ATV is traversing a sloping surface:
WHAT TO DO... Be sure to ride with your weight positioned to-
● If your ATV doesn’t turn when you want it to: wards the uphill side of the ATV to maintain
Bring the ATV to a stop and practice the turning proper balance. If the ATV starts to tip, steer
7 maneuvers again. Be sure you are putting your down the hill (if there are no obstacles in your
weight on the footboard to the outside of the way) to regain balance. If you discover that the
turn. Position your weight over the front wheels ATV is going to tip over, dismount on the uphill
for better control. (See page 7-13.) side. (See page 7-18.)
● If your ATV begins to tip while turning: ● If your ATV encounters shallow water:
Lean more into the turn to regain balance. If nec- Ride slowly and carefully through slow moving
essary, gradually let off the throttle and/or steer water, watching for obstacles. Be sure to let wa-
to the outside of the turn. (See page 7-13.) ter drain from the ATV and CHECK YOUR
● If your ATV starts to slide sideways: BRAKES FOR PROPER OPERATION when
Steer in the direction of the slide if you have the you come out of the water. Do not continue to
room. Applying the brakes or accelerating is not ride your ATV until you have regained adequate
recommended until you have corrected the braking ability. (See page 7-19.)
slide. (See page 7-22.)

7-24
EBU28781

PERIODIC MAINTENANCE AND MINOR REPAIR

EBU21670 otherwise specified. Have a Yamaha dealer
perform the service if you are not familiar with
Safety is an obligation of the owner. Periodic in- maintenance work.
spection, adjustment and lubrication will keep your
ATV in the safest and best operating condition EBU21730
possible. The most important points of inspection, Owner’s manual and tool kit
adjustment, and lubrication are explained on the Be sure to put this owner’s manual in the plastic
following pages. bag and always carry it on the bottom of the seat
The intervals given in the periodic maintenance as shown. Put the owner’s tool kit and low-pres-
and lubrication chart should be considered as a sure tire gauge under the seat.
general guide under normal riding conditions.
However, DEPENDING ON THE WEATHER,
TERRAIN, GEOGRAPHICAL LOCATION, AND
INDIVIDUAL USE, THE MAINTENANCE INTER- 8
VALS MAY NEED TO BE SHORTENED.
EWB01840

WARNING
Never service an engine while it is running.
Moving parts can catch clothing or parts of the
body, causing injury. Electrical components
can cause shocks or start fires. Turn off the en-
gine when performing maintenance unless 1. Owner’s manual
2. Owner’s tool kit
3. Low-pressure tire gauge

8-1
 The service information included in this manual
and the tools provided in the owner’s tool kit are in-
tended to assist you in the performance of preven-
tive maintenance and minor repairs. However,
additional tools such as a torque wrench may be
necessary to perform certain maintenance work
correctly.
NOTE:
If you do not have the tools or experience required
for a particular job, have a Yamaha dealer perform
it for you.
EWB01850

WARNING
Never modify this ATV through improper in-
8 stallation or use of accessories, as it may
cause changes in handling, which in some sit-
uations could lead to an accident. All parts and
accessories added to this ATV should be gen-
uine Yamaha or equivalent components de-
signed for use on this ATV and should be
installed and used according to instructions. If
you have questions, consult an authorized
Yamaha ATV dealer.

8-2
EBU21742
Periodic maintenance chart for the emission control system
NOTE:
● For ATVs not equipped with an odometer or an hour meter, follow the month maintenance intervals.
● For ATVs equipped with an odometer or an hour meter, follow the km (mi) or hours maintenance inter-
vals. However, keep in mind that if the ATV isn’t used for a long period of time, the month maintenance
intervals should be followed.
● Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools,
data and technical skills.

INITIAL EVERY

Whichev- month 1 3 6 6 12
CHECK OR MAINTENANCE
NO. ITEM er comes km 320 1300 2500 2500 5000
JOB
first (mi) (200) (800) (1600) (1600) (3200)
hours 20 80 160 160 320
• Check fuel hoses for cracks or other damage, and
8
1 * Fuel line √ √ √
replace if necessary.
• Check condition and clean, regap, or replace if
2 Spark plug √ √ √ √ √
necessary.
3 * Valves • Check valve clearance and adjust if necessary. √ √ √ √
• Check starter (choke) operation and correct if nec-
essary.
4 * Carburetor √ √ √ √
• Check engine idling speed and adjust if neces-
sary.
Crankcase breather • Check breather hose for cracks or other damage,
5 * √ √ √
system and replace if necessary.

8-3
 INITIAL EVERY
month 1 3 6 6 12
CHECK OR MAINTENANCE Whichev-
NO. ITEM er comes km 320 1300 2500 2500 5000
JOB
first (mi) (200) (800) (1600) (1600) (3200)
hours 20 80 160 160 320
• Check for leakage and replace gasket(s) if neces-
sary.
6 * Exhaust system √ √ √
• Check for looseness and tighten all screw clamps
and joints if necessary.

8-4
EBU21864
General maintenance and lubrication chart
INITIAL EVERY
month 1 3 6 6 12
CHECK OR MAINTENANCE Whichev-
NO. ITEM er comes km 320 1300 2500 2500 5000
JOB
first (mi) (200) (800) (1600) (1600) (3200)
hours 20 80 160 160 320
Every 20–40 hours (more often in wet or
1 Air filter element • Clean and replace if necessary.
dusty areas)
• Check operation and correct if necessary.
Hydraulic brake • Check fluid level and ATV for fluid leakage, and √ √ √ √ √
2 * correct if necessary.
system
• Replace brake pads. Whenever worn to the limit
• Check operation and correct if necessary.
• Check brake lever and pedal free play, and adjust √ √ √ √ √
3 * Rear brake if necessary.
• Replace brake shoes. Whenever worn to the limit 8
• Check for cracks or other damage, and replace if
√ √ √ √
4 * Brake hoses necessary.
• Replace. Every 4 years
• Check runout and for damage, and replace if nec-
5 * Wheels √ √ √ √
essary.
• Check tread depth and for damage, and replace if
necessary.
6 * Tires √ √ √ √
• Check air pressure and balance, and correct if
necessary.
• Check for looseness or damage, and replace if
7 * Wheel hub bearings √ √ √ √
necessary.
8 * Swingarm • Check for excessive play, and correct if necessary. √ √ √

8-5
 INITIAL EVERY
month 1 3 6 6 12
CHECK OR MAINTENANCE Whichev-
NO. ITEM er comes km 320 1300 2500 2500 5000
JOB
first (mi) (200) (800) (1600) (1600) (3200)
hours 20 80 160 160 320
• Check for wear, cracks or other damage, and re-
9 * V-belt √ √ √ √
place if necessary.
• Make sure that all nuts, bolts, and screws are
10 * Chassis fasteners √ √ √ √ √
properly tightened.
Shock absorber as- • Check operation and correct if necessary.
11 * √ √ √
semblies • Check for oil leakage and replace if necessary.
12 * Steering shaft • Lubricate with lithium-soap-based grease. √ √ √
• Check operation and repair or replace if damaged.
13 * Steering system √ √ √ √ √
• Check toe-in and adjust if necessary.
• Check for cracks or other damage, and replace if
14 * Engine mount √ √ √
necessary.
8 15 * Axle boots
• Check for cracks or other damage, and replace if
√ √ √ √ √
necessary.
• Change.
16 Engine oil • Check ATV for oil leakage, and correct if neces- √ √ √ √
sary.
Engine oil filter car-
17 • Replace. √ √ √
tridge
Differential gear oil • Change.
18 (for four-wheel- • Check ATV for oil leakage, and correct if neces- √ √
drive models) sary.
• Change.
19 Final gear oil • Check ATV for oil leakage, and correct if neces- √ √
sary.

8-6
 INITIAL EVERY
month 1 3 6 6 12
CHECK OR MAINTENANCE Whichev-
NO. ITEM er comes km 320 1300 2500 2500 5000
JOB
first (mi) (200) (800) (1600) (1600) (3200)
hours 20 80 160 160 320
Moving parts and
20 * • Lubricate. √ √ √ √
cables
Drive select lever • Check operation and adjust or replace if neces-
21 * √ √ √
safety system cable sary.
• Check operation and correct if necessary.
Throttle lever hous- • Check throttle cable free play and adjust if neces-
22 * √ √ √ √ √
ing and cable sary.
• Lubricate throttle lever housing and cable.
Front and rear brake
23 * • Check operation and correct if necessary. √ √ √ √ √
switches
• Check operation and correct if necessary.
24 * Lights and switches √ √ √ √ √
• Adjust headlight beam.
8
EBUM0110

NOTE:
● The air filter needs more frequent service if you are riding in unusually wet or dusty areas.
● Hydraulic brake service
• Regularly check and, if necessary, correct the brake fluid level.
• Every two years replace the internal components of the front brake master cylinder, equalizer master
cylinder and calipers, and change the brake fluid.
• Every two years replace the piston seals and O-ring of the brake equalizer.

8-7
 • Replace the brake hoses every four years and if cracked or damaged.

8-8
EBU23080
Removing and installing the panel
The panel shown needs to be removed to perform
some of the maintenance jobs described in this
chapter. Refer to this section each time the panel
needs to be removed and installed.

1. Panel A
2. Bolt

To install the panel

Place the panel in the original position and install
8
the bolt.
1. Panel A ECB00380

CAUTION:
EBU23111
Panel A When installing the panel, be sure not to pinch
the cables or wires.
To remove the panel
Remove the bolt, and then take the panel off. EBU23211
Checking the spark plug
The spark plug is an important engine component,
which is easy to check. Since heat and deposits
will cause any spark plug to slowly erode, the spark
8-9
 plug should be removed and checked in accor-
dance with the periodic maintenance and lubrica-
tion chart. In addition, the condition of the spark
plug can reveal the condition of the engine.

To remove the spark plug

1. Remove the spark plug cap.

1. Spark plug wrench

To check the spark plug

1. Check that the porcelain insulator around the
8 center electrode of the spark plug is a medi-
um-to-light tan (the ideal color when the ATV
is ridden normally).
1. Spark plug cap
NOTE:
2. Remove the spark plug as shown, with the If the spark plug shows a distinctly different color,
spark plug wrench included in the owner’s tool the engine could be operating improperly. Do not
kit. attempt to diagnose such problems yourself. In-
stead, have a Yamaha dealer check the ATV.
2. Check the spark plug for electrode erosion
and excessive carbon or other deposits, and
replace it if necessary.
8-10
 3. Install the spark plug with the spark plug
Specified spark plug:
wrench, and then tighten it to the specified
NGK/DR8EA
torque.
To install the spark plug Tightening torque:
1. Measure the spark plug gap with a wire thick- Spark plug:
ness gauge and, if necessary, adjust the gap 17.5 Nm (1.75 m·kgf, 12.7 ft·lbf)
to specification.

Spark plug gap: NOTE:

0.6–0.7 mm (0.024–0.028 in) If a torque wrench is not available when installing
a spark plug, a good estimate of the correct torque
is 1/4–1/2 turn past finger tight. However, the spark
plug should be tightened to the specified torque as
soon as possible.
4. Install the spark plug cap.
8
EBU23314
Engine oil and oil filter cartridge
The engine oil level should be checked before
each ride. In addition, the oil must be changed and
the oil filter cartridge replaced at the intervals spec-
ified in the periodic maintenance and lubrication
1. Spark plug gap chart.
2. Clean the surface of the spark plug gasket To check the engine oil level
and its mating surface, and then wipe off any 1. Place the ATV on a level surface.
grime from the spark plug threads.
8-11
 2. Check the engine oil level on a cold engine.
NOTE:
If the engine was started before checking the oil
level, be sure to warm up the engine sufficiently,
and then wait at least ten minutes until the oil set-
tles for an accurate reading.
3. Remove the engine oil filler cap, and then
wipe the dipstick off with a clean rag.

1. Dipstick
2. Maximum level mark
3. Minimum level mark

8 NOTE:
The engine oil should be between the minimum
and maximum level marks.
5. If the engine oil is at or below the minimum
level mark, add sufficient oil of the recom-
1. Engine oil filler cap
mended type to raise it to the correct level.
4. Insert the dipstick into the filler hole (without 6. Insert the dipstick into the oil filler hole, and
screwing it in), and then remove it again to then tighten the engine oil filler cap.
check the oil level.

8-12
To change the engine oil (with or without oil fil- 5. Remove the oil filter cartridge with an oil filter
ter cartridge replacement) wrench.
1. Place the ATV on a level surface.
2. Start the engine, warm it up for several min-
utes, and then turn it off.
3. Place an oil pan under the engine to collect
the used oil.
4. Remove the engine oil filler cap, and then re-
move the engine oil drain bolt to drain the oil
from the crankcase.

1. Oil filter cartridge

1. Engine oil drain bolt

NOTE:
Skip steps 5–7 if the oil filter cartridge is not being
replaced. 1. Oil filter wrench

8-13
 NOTE:
An oil filter wrench is available at a nearby Yamaha
dealer.
6. Apply a thin coat of engine oil to the O-ring of
the new oil filter cartridge.
NOTE:
Make sure that the O-ring is properly seated.

1. Torque wrench

Tightening torque:
Oil filter cartridge:
8 17 Nm (1.7 m·kgf, 12 ft·lbf)

8. Install the engine oil drain bolt, and then tight-

en it to the specified torque.

1. O-ring Tightening torque:

Engine oil drain bolt:
7. Install the new oil filter cartridge with an oil fil- 23 Nm (2.3 m·kgf, 17 ft·lbf)
ter wrench, and then tighten it to the specified
torque with a torque wrench. 9. Refill with the specified amount of the recom-
mended engine oil, and then install and tight-
en the engine oil filler cap.
8-14
 10. Start the engine, and then let it idle for several
Recommended oil:
minutes while checking it for oil leakage. If oil
See page 10-1.
is leaking, immediately turn the engine off and
Oil quantity:
check for the cause.
Without oil filter cartridge replacement:
11. Turn the engine off, wait at least ten minutes,
2.20 L (2.33 US qt) (1.94 Imp.qt)
and then check the oil level and correct it if
With oil filter cartridge replacement:
necessary.
2.30 L (2.43 US qt) (2.02 Imp.qt)
EBU23383

NOTE: Final gear oil

Be sure to wipe off spilled oil on any parts after the The final gear case must be checked for oil leak-
engine and exhaust system have cooled down. age before each ride. If any leakage is found, have
ECB00300
a Yamaha dealer check and repair the ATV. In ad-
dition, the final gear oil level must be checked and
CAUTION:
the oil changed as follows at the intervals specified
● In order to prevent clutch slippage (since the
in the periodic maintenance and lubrication chart.
engine oil also lubricates the clutch), do not 8
mix any chemical additives. Do not use oils To check the final gear oil level
with a diesel specification of “CD” or oils of 1. Place the ATV on a level surface.
a higher quality than specified. In addition,
do not use oils labeled “ENERGY CONSERV- NOTE:
ING II” or higher. The final gear oil level must be checked on a cold
● Make sure that no foreign material enters the engine.
crankcase. 2. Remove the final gear oil filler bolt, and then
check the oil level in the final gear case.

8-15
 To change the final gear oil
NOTE:
1. Place the ATV on a level surface.
The oil level should be at the brim of the filler hole.
2. Remove the final gear case guard by remov-
ing the bolts.

1. Final gear oil

2. Final gear oil filler bolt 1. Final gear case guard
8
3. Correct oil level 2. Bolt

3. If the oil is below the brim of the filler hole, add 3. Place an oil pan under the final gear case to
sufficient oil of the recommended type to raise collect the used oil.
it to the correct level. 4. Remove the final gear oil filler bolt and the fi-
4. Install the oil filler bolt, and then tighten it to the nal gear oil drain bolt to drain the oil from the
specified torque. final gear case.

Tightening torque:
Final gear oil filler bolt:
23 Nm (2.3 m·kgf, 17 ft·lbf)

8-16
1. Final gear oil drain bolt 1. Final gear oil
2. Final gear oil filler bolt
5. Install the drain bolt, and then tighten it to the 3. Correct oil level
specified torque.
Recommended final gear oil:
Tightening torque: 8
See page 10-1.
Final gear oil drain bolt:
23 Nm (2.3 m·kgf, 17 ft·lbf) ECB00420

CAUTION:
6. Refill with the recommended final gear oil to Be sure no foreign material enters the final
the brim of the filler hole as shown. gear case.
7. Install the oil filler bolt, and then tighten it to the
specified torque.

8-17
 3. Remove the differential gear oil filler bolt and
Tightening torque:
the differential gear oil drain bolt to drain the
Final gear oil filler bolt:
oil from the differential gear case.
23 Nm (2.3 m·kgf, 17 ft·lbf)

8. Check the final gear case for oil leakage. If oil

is leaking, check for the cause.
9. Install the final gear case guard by installing
the bolts and tightening them to the specified
torque.

Tightening torque:
Final gear case guard bolt:
16 Nm (1.6 m·kgf, 11 ft·lbf)

EBU23433 1. Differential gear oil filler bolt

8 Changing the differential gear oil (4WD
model)
The differential gear case must be checked for oil
leakage before each ride. If any leakage is found,
have a Yamaha dealer check and repair the ATV.
In addition, the differential gear oil must be
changed as follows at the intervals specified in the
periodic maintenance and lubrication chart.
1. Place the ATV on a level surface.
2. Place an oil pan under the differential gear
case to collect the used oil.

8-18
 ● The differential gear case capacity is greater
than the recommended oil quantity, therefore
the oil level cannot be accurately checked from
the oil filler hole.

Recommended differential gear oil:

See page 10-1.
Oil quantity:
YFM350FWA 0.35 L (0.37 US qt) (0.31
Imp.qt)
1. Differential gear oil drain bolt ECB00410

CAUTION:
4. Install the drain bolt, and then tighten it to the
specified torque. Be sure no foreign material enters the differen-
tial gear case.
Tightening torque: 8
6. Install the oil filler bolt, and then tighten it to the
Differential gear oil drain bolt: specified torque.
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Tightening torque:
5. Refill with the specified amount of the recom- Differential gear oil filler bolt:
mended differential gear oil. 23 Nm (2.3 m·kgf, 17 ft·lbf)
NOTE:
● Do not exceed the specified differential gear oil
7. Check the differential gear case for oil leak-
quantity when filling. Overfilling will cause the oil age. If oil is leaking, check for the cause.
to seep out of the breather hose during and after
riding.
8-19
 EBU23644 2. Remove the seat. (See page 4-15.)
Cleaning the air filter element 3. Remove the air filter case cover by unhooking
The air filter element should be cleaned at the in- the air filter case cover holders.
tervals specified in the periodic maintenance and
lubrication chart. Clean the air filter element more
frequently if you are riding in unusually wet or dusty
areas.
NOTE:
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 fil-
ter case.

1. Air filter case cover holder

8 2. Air filter case cover

4. Pull the air filter element out of the air filter

case.

1. Air filter case check hose

1. Place the ATV on a level surface.

8-20
1. Air filter element 1. Air filter element frame
2. Sponge material
5. Pull off the air filter element lock plate, and 3. Air filter element lock plate
then remove the sponge material from the air
filter element frame. 6. Wash the sponge material gently but thor-
oughly in solvent. 8
EWB01940

WARNING
Always use parts cleaning solvent to clean the
sponge material. Never use low-flash-point
solvents or gasoline to clean the sponge mate-
rial because the engine could catch fire or ex-
plode.
7. Squeeze the excess solvent out of the sponge
material and let it dry.

8-21
 ECB00440 11. Insert the air filter element into the air filter
CAUTION: case, and then install the air filter case cover
Do not twist the sponge material when squeez- by hooking the holders onto the air filter case.
ing it. 12. Install the seat.
NOTE:
The air filter element should be cleaned every 20–
40 hours. It should be cleaned and lubricated more
often if the ATV is operated in extremely dusty ar-
eas. Each time the air filter element maintenance
is performed, check the air inlet of the air filter case
for obstructions. Check the air filter case rubber
joint to the carburetor fittings and the rubber joint
manifold fittings for an air-tight seal. Tighten all fit-
tings securely to avoid the possibility of unfiltered
air entering the engine.
8
8. Check the sponge material and replace it if ECB00460

damaged. CAUTION:
9. Apply a quality foam air filter oil to the sponge ● Make sure that the air filter element is prop-
material. erly seated in the air filter case.
● Never operate the engine with the air filter el-
NOTE:
ement removed. This will allow unfiltered air
The sponge material should be wet but not drip-
to enter the engine, causing rapid engine
ping.
wear and possible engine damage. Addition-
10. Pull the sponge material over the air filter ele- ally, operation without the air filter element
ment frame, and then install the lock plate.

8-22
 will affect carburetor jetting with subsequent
NOTE:
poor performance and possible engine over-
If water drains from the V-belt case after removing
heating.
the plug, have a Yamaha dealer check the ATV as
the water may affect other engine parts.
EBU23920
V-belt cooling duct check hose
If dust or water collects in the V-belt cooling duct
check hose, remove the hose and clean it.

8
1. V-belt case drain plug

EBU23940
Adjusting the carburetor
1. V-belt cooling duct check hose (left front side of ATV)
The carburetor should be checked and, if neces-
EBU23930 sary, adjusted at the intervals specified in the peri-
V-belt case drain plug odic maintenance and lubrication chart. The
After riding in water deep enough to allow it to en- carburetor is an important part of the engine and
ter the V-belt case, remove this plug to drain the requires very sophisticated adjustment. Therefore,
water from the case. most carburetor adjustments should be left to a
Yamaha dealer, who has the necessary profes-
8-23
 sional knowledge and experience. The adjustment 2. Attach the tachometer to the spark plug lead.
described in the following section, however, may 3. Check the engine idling speed and, if neces-
be performed by the owner as part of routine main- sary, adjust it to specification by turning the
tenance. throttle stop screw at the carburetor. To in-
ECB00480 crease the engine idling speed, turn the throt-
CAUTION: tle stop screw in direction (a), and to decrease
The carburetor has been set and extensively it, turn the screw in direction (b).
tested at the Yamaha factory. Changing these
settings without sufficient technical knowl-
edge may result in poor performance of or
damage to the engine.

EBU24000
Adjusting the engine idling speed
The engine idling speed must be checked and, if
8 necessary, adjusted as follows at the intervals
specified in the periodic maintenance and lubrica-
tion chart.
1. Throttle stop screw
NOTE:
A diagnostic tachometer is needed to make this Engine idling speed:
adjustment. 1450–1550 r/min
1. Start the engine and warm it up.
NOTE:
The engine is warm when it quickly responds to the
throttle.
8-24
NOTE:
If the specified idling speed cannot be obtained as
described above, have a Yamaha dealer make the
adjustment.

EBU24044
Adjusting the throttle cable free play
The throttle cable free play should be checked
and, if necessary, adjusted at the intervals speci-
fied in the periodic maintenance and lubrication
chart. 1. Locknut
The throttle cable free play should measure 3.0– 2. Throttle cable free play adjusting bolt
5.0 mm (0.12–0.20 in) at the throttle lever. Period- 3. Throttle cable free play
ically check the throttle cable free play and, if nec-
essary, adjust it as follows. 3. Tighten the locknut.
8
NOTE: EBU24060

The engine idling speed must be checked, and ad- Valve clearance
justed if necessary, before adjusting the throttle ca- The valve clearance changes with use, resulting in
ble free play. improper air-fuel mixture and/or engine noise. To
prevent this from occurring, the valve clearance
1. Loosen the locknut. must be adjusted by a Yamaha dealer at the inter-
2. To increase the throttle cable free play, turn vals specified in the periodic maintenance and lu-
the throttle cable free play adjusting bolt in di- brication chart.
rection (a). To decrease the throttle cable free
play, turn the adjusting bolt in direction (b).

8-25
 EBU24070
Adjusting the drive select lever safety
system cable
The drive select lever safety system cable stretch-
es with use, which can result in improper function.
Therefore, the safety system cable should be
checked and adjusted at the intervals specified in
the periodic maintenance and lubrication chart.
EBU24120
Checking the front brake pads and rear
brake shoes 1. Brake pad
The front brake pads and the rear brake shoes 2. Lining thickness
must be checked for wear at the intervals specified
in the periodic maintenance and lubrication chart. NOTE:
8 EBU24171
The wheels need to be removed to check the
Front brake pads brake pads. (See page 8-38.)
Check each front brake pad for damage and mea-
sure the lining thickness. If a brake pad is dam- EBU24180

aged or if the lining thickness is less than 1.0 mm Rear brake shoes
(0.04 in), have a Yamaha dealer replace the brake The rear brake is provided with a wear indicator,
pads as a set. which allows you to check the brake shoe wear
without having to disassemble the brake. To check
the brake shoe wear, check the position of the
wear indicator while applying the brake. If a brake

8-26
shoe has worn to the point that the wear indicator brake pads and/or brake system leakage. If the
reaches the wear limit line or mark, have a brake fluid level is low, be sure to check the brake
Yamaha dealer replace the brake shoes as a set. pads for wear and the brake system for leakage.
Front brake

1. Wear limit line

2. Wear indicator 1. Minimum level mark 8
EBU24251
Checking the brake fluid level
Insufficient brake fluid may allow air to enter the
brake system, possibly causing it to become inef-
fective.
Before riding, check that the brake fluid is above
the minimum level mark and replenish if neces-
sary. A low brake fluid level may indicate worn

8-27
 Rear brake ● Be careful that water does not enter the brake
fluid reservoir when refilling. Water will signifi-
cantly lower the boiling point of the fluid and may
result in vapor lock.
● Brake fluid may deteriorate painted surfaces or
plastic parts. Always clean up spilled fluid imme-
diately.
● As the brake pads wear, it is normal for the brake
fluid level to gradually go down. However, if the
brake fluid level goes down suddenly, have a
Yamaha dealer check the cause.
1. Minimum level mark EBUM0120
2. Maximum level mark Changing the brake fluid
Have a Yamaha dealer change the brake fluid at
Observe these precautions:
the intervals specified in the NOTE after the peri-
8 ● When checking the fluid level, make sure that
odic maintenance and lubrication chart. In addi-
the top of the brake fluid reservoir is level.
tion, have the oil seals of the front brake master
● Use only the recommended quality brake fluid,
cylinder, equalizer master cylinder and calipers as
otherwise the rubber seals may deteriorate,
well as the brake hoses replaced at the intervals
causing leakage and poor braking performance.
listed below or whenever they are damaged or
Recommended brake fluid: leaking.
● Oil seals: Replace every two years.
DOT 4
● Brake hoses: Replace every four years.
● Refill with the same type of brake fluid. Mixing ● Brake equalizer piston seals and o-ring: Replace
fluids may result in a harmful chemical reaction every two years.
and lead to poor braking performance.
8-28
EBU24390 ● Make sure the brakes operate smoothly and
Checking the front brake lever free play that the free play is correct.
The brake lever free play must be checked at the ● Make sure the brakes do not drag.
intervals specified in the periodic maintenance and ● Make sure the brakes are not spongy. All air
lubrication chart. The brake lever should have a must be bled from the brake system.
free play of zero mm (zero in) as shown. If the free Replacement of brake components requires
play is incorrect, have a Yamaha dealer check the professional knowledge. These procedures
brake system. should be performed by a Yamaha dealer.

EBUM0142
Checking the rear brake lever and
brake pedal free play and the brake
pedal position
The brake pedal and rear brake lever free play,
and brake pedal position must be checked at the
intervals specified in the periodic maintenance and 8
lubrication chart.

Checking the rear brake lever and brake pedal

1. Brake lever free play
free play
EWB02070 The brake lever should have a free play of 3.0–5.0
WARNING mm (0.12–0.20 in) as shown. If the free play is in-
Operating with improperly serviced or adjust- correct, have a Yamaha dealer check the brake
ed brakes could cause loss of braking ability, system.
which could lead to an accident.
After servicing:

8-29
 Checking the brake pedal position
The top of the brake pedal should be positioned
72.0–82.0 mm (2.83–3.23 in) above the footboard
bracket. If the brake pedal position is incorrect,
have a Yamaha dealer adjust it.

1. Brake lever free play

The brake pedal should have a free play of 0.0– 1

12.0 mm (0.00–0.47 in) as shown. If the free play
is incorrect, have a Yamaha dealer check the
brake system.
8 1. Distance between brake pedal and footboard bracket
EWB02080

WARNING
Operating with improperly serviced or adjust-
ed brakes could cause loss of braking ability,
which could lead to an accident.
After servicing:
● Make sure the brakes operate smoothly and
that the free play is correct.
1. Brake pedal free play ● Make sure the brakes do not drag.

8-30
Replacement of brake components requires EBU24752

professional knowledge. These procedures Brake light switches

should be performed by a Yamaha dealer. The operation of the brake light switches must be
checked and, if necessary, adjusted at the inter-
EBU24230
vals specified in the periodic maintenance and lu-
Axle boots brication chart.
The axle boots must be checked for damage at the The brake light switch for the brake pedal can be
intervals specified in the periodic maintenance and adjusted as follows, but the other brake light
lubrication chart. Check the axle boots for tears or switches should be adjusted by a Yamaha dealer.
damage. If any damage is found, have them re- 1. Remove panel A. (See page 8-9.)
placed by a Yamaha dealer. NOTE:
The brake light switch is properly adjusted when
the brake light comes on just before braking takes
effect.
2. Turn the brake light switch adjusting nut while
8
holding the brake light switch in place. To
make the brake light come on earlier, turn the
adjusting nut in direction (a). To make the
brake light come on later, turn the adjusting
nut in direction (b).

1. Axle boot (each side)

8-31
 EWB02130

WARNING
Inspect cables frequently and replace if dam-
aged. Corrosion can result when the cable
sheaths become damaged, and cables can
also become frayed or kinked, which could re-
strict the operation of controls and lead to an
accident or injury.

EBU28711
Checking and lubricating the front and
1. Brake light switch rear brake levers
2. Brake light switch adjusting nut
The operation of the front and rear brake levers
3. Install the panel. should be checked before each ride, and the lever
pivots should be lubricated if necessary.
8 EBU24900
Checking and lubricating the cables Recommended lubricants:
The operation and the condition of all control ca- Front brake lever:
bles should be checked before each ride, and the Silicone grease
cables and cable ends should be lubricated if nec- Rear brake lever:
essary. If a cable is damaged or does not move Lithium-soap-based grease
smoothly, have a Yamaha dealer check or replace
it.

Recommended lubricant:
Engine oil

8-32
Front brake lever EBU24951
Checking and lubricating the brake
pedal
The operation of the brake pedal should be
checked before each ride, and the pedal pivot
should be lubricated if necessary.
NOTE:
To access the brake pedal pivot, remove panel A.
(See page 8-9.)

Recommended lubricant:
Rear brake lever Silicone grease

8-33
 EBU24962 ECB00620
Checking the wheel hub bearings CAUTION:
The front and rear wheel hub bearings must be Never attempt to remove the battery cell seals,
checked at the intervals specified in the periodic as this would permanently damage the battery.
maintenance and lubrication chart. If there is play
EWB02160
in a wheel hub or if a wheel does not turn smoothly,
WARNING
have a Yamaha dealer check the wheel hub bear-
ings. Battery electrolyte is poisonous and danger-
ous, as it contains sulfuric acid, which can
EBU25102 cause severe burns. Avoid contact with skin,
Lubricating the steering shaft eyes or clothing. Always shield your eyes
The steering shaft must be lubricated at the inter- when working near batteries.
vals specified in the periodic maintenance and lu- Antidote:
brication chart. EXTERNAL: Flush with water.
INTERNAL: Drink large quantities of water or
Recommended lubricant: milk. Follow with milk of magnesia, beaten egg
8 Lithium-soap-based grease or vegetable oil. Call a physician immediately.
EYES: Flush with water for 15 minutes and get
EBU25222
prompt medical attention.
Battery Batteries produce explosive gases. Keep
This model is equipped with a sealed-type (MF) sparks, flame, cigarettes or other sources of ig-
battery, which does not require any maintenance. nition away. Ventilate when charging or using
There is no need to check the electrolyte or to add in an enclosed space.
distilled water. Check and, if necessary, tighten the KEEP OUT OF REACH OF CHILDREN.
battery lead connections.

8-34
To charge the battery
Have a Yamaha dealer charge the battery as soon
as possible if it seems to have discharged. Keep in
mind that the battery tends to discharge more
quickly if the ATV is equipped with optional electri-
cal accessories.

To store the battery

1. If the ATV will not be used for more than one
month, remove the battery, fully charge it, and
then place it in a cool, dry place.
2. If the battery will be stored for more than two 1. Positive battery lead (red)
months, check it at least once a month and ful- 2. Negative battery lead (black)
ly charge it if necessary. ECB00630

CAUTION:
To install the battery
● Always keep the battery charged. Storing a 8
NOTE: discharged battery can cause permanent
Be sure the battery is fully charged. battery damage.
1. Place the battery in its compartment. ● To charge a sealed-type (MF) battery, a spe-
2. Make sure to properly connect the battery cial constant-voltage battery charger is re-
leads to the battery terminals. quired. Using a conventional battery charger
will damage the battery. If you do not have
access to a constant-voltage battery charg-
er, have a Yamaha dealer charge your bat-
tery.

8-35
 EBU25324
Replacing a fuse

1. Headlight fuse
44 2. Ignition fuse
1. Main fuse 3. Auxiliary DC jack fuse (for optional auxiliary DC jack)
2. Spare main fuse 4. Four-wheel-drive motor fuse
3. Fuse box 5. Signaling system fuse
8 4. Accessory fuse 6. Spare fuse

The main fuse and the fuse box are located under
the seat. (See page 4-15.)
If a fuse is blown, replace it as follows.
1. Turn the key to “OFF” and turn off all electrical
circuits.

8-36
ECB00640 EWB02171

CAUTION: WARNING
To prevent accidental short-circuiting, turn off Always use a fuse of the specified rating, and
the main switch when checking or replacing a never use a substitute object in place of the
fuse. proper fuse. An improper fuse or a substitute
object can cause damage to the electrical sys-
2. Remove the blown fuse, and then install a
tem, which could lead to a fire.
new fuse of the specified amperage.
3. Turn the key to “ON” and turn on the electrical
Specified fuses: circuits to check if the devices operate.
Main fuse: 4. If the fuse immediately blows again, have a
30.0 A Yamaha dealer check the electrical system.
Headlight fuse:
EBU28160
15.0 A
Ignition fuse: Headlight bulb
15.0 A If the headlight bulb burns out, have a Yamaha
Four-wheel-drive motor fuse: dealer replace it. 8
YFM350FWA 3.0 A EBU28170
Signaling system fuse: Headlight beam
10.0 A If a headlight beam adjustment is necessary, have
Auxiliary DC jack fuse: a Yamaha dealer perform it.
10.0 A
Accessory fuse: EBU25580

7.5 A Replacing the tail/brake light bulb

If the tail/brake light bulb burns out, have a
Yamaha dealer replace it.

8-37
 EBU28030 EBU28020
Replacing a turn signal light bulb Auxiliary light bulb
1. Remove the turn signal light lens by removing If the auxiliary light bulb burns out, have a Yamaha
the screw. dealer replace it.
EBU25651
Removing a wheel
1. Place the ATV on a level surface.
2. Loosen the wheel nuts.

1
1. Screw
8
2. Remove the defective bulb by pushing it in
and turning it counterclockwise.
3. Insert a new bulb into the socket, push it in,
and then turn it clockwise until it stops. 1. Wheel nut
4. Install the lens by installing the screw.
ECB00870
3. Elevate the ATV and place a suitable stand
CAUTION: under the frame.
4. Remove the nuts from the wheel.
Do not overtighten the screw, otherwise the
5. Remove the wheel.
lens may break.

8-38
EBU25701
Installing a wheel
1. Place the ATV on a level surface.
2. Install the wheel and the nuts.
NOTE:
● The arrow mark on the tire must point toward
the rotating direction of the wheel.
● Tapered nuts are used for both the front and rear
wheels. Install the nuts with their tapered side to-
wards the wheel.

1. Tapered nut

3. Lower the ATV to the ground.

4. Tighten the wheel nuts to the specified
torques.
8
Tightening torques:
Front wheel nut:
55 Nm (5.5 m·kgf, 40 ft·lbf)
Rear wheel nut:
55 Nm (5.5 m·kgf, 40 ft·lbf)
1. Arrow mark

8-39
 EBU25720
Troubleshooting
Although Yamaha ATVs receive a thorough in-
spection before shipment from the factory, trouble
may occur during operation. Any problem in the fu-
el, compression, or ignition systems, for example,
can cause poor starting and loss of power.
The following troubleshooting chart represents a
quick and easy procedure for checking these vital
systems yourself. However, should your ATV re-
quire any repair, take it to a Yamaha dealer, whose
skilled technicians have the necessary tools, expe-
rience, and know-how to service the ATV properly.
Use only genuine Yamaha replacement parts. Im-
itation parts may look like Yamaha parts, but they
are often inferior, have a shorter service life and
8
can lead to expensive repair bills.
EWB02280

WARNING
Do not smoke when checking the fuel system.
Fuel can ignite or explode, causing severe inju-
ry or property damage. Make sure there are no
open flames or sparks in the area, including pi-
lot lights from water heaters or furnaces.

8-40
EBU25751
Troubleshooting chart

1. Fuel
There is enough fuel. Check the compression.
Check the fuel level in
the fuel tank.
The engine does not start.
There is no fuel. Supply fuel.
Check the compression.

2. Compression
There is compression. Check the ignition.
Operate the electric starter.
Have a Yamaha dealer
There is no compression.
check the ATV.

3. Ignition Wipe off with a dry cloth and correct the Open the throttle halfway and operate
Wet the electric starter.
spark plug gap, or replace the spark plug.
Remove the spark plug 8
and check the electrodes.
The engine does not start.
Dry Have a Yamaha dealer check the ATV.
Check the battery.

4. Battery The engine turns over

The battery is good.
quickly. The engine does not start.
Operate the electric starter. Have a Yamaha dealer
The engine turns over Check the battery lead connections, check the ATV.
slowly. and charge the battery if necessary.

8-41
 EBU25860

CLEANING AND STORAGE

EBU25880 ed from improper high-pressure detergent
Cleaning applications such as those available in coin-
Frequent, thorough cleaning of your ATV will not operated car washers.
only enhance its appearance but will improve its
general performance and extend the useful life of 4. Once most of the dirt has been hosed off,
many components. wash all surfaces with warm water and mild,
1. Before cleaning the ATV: detergent-type soap. An old toothbrush or bot-
a. Block off the end of the exhaust pipe to tle brush is handy for hard-to-reach places.
prevent water entry. A plastic bag and 5. Rinse the ATV off immediately with clean wa-
strong rubber band may be used. ter and dry all surfaces with a chamois, clean
b. Make sure the spark plug and all filler caps towel or soft absorbing cloth.
are properly installed. 6. Clean the seat with a vinyl upholstery cleaner
2. If the engine case is excessively greasy, apply to keep the cover pliable and glossy.
degreaser with a paint brush. Do not apply de- 7. Automotive type wax may be applied to all
greaser to the wheel axles. painted and chrome plated surfaces. Avoid
9 3. Rinse the dirt and degreaser off with a garden combination cleaner-waxes. Many contain
hose. Use only enough pressure to do the job. abrasives which may mar the paint or protec-
ECB00710 tive finish. When finished cleaning, start the
CAUTION: engine and let it idle for several minutes.
Excessive water pressure may cause water
seepage and deterioration of wheel bearings,
brakes, transmission seals and electrical de-
vices. Many expensive repair bills have result-

9-1
EWB02310 Long-term
WARNING Before storing your ATV for several months:
Wet brakes may have reduced stopping ability, 1. Follow all the instructions in the “Cleaning”
increasing the chance of an accident. Test the section of this chapter.
brakes after washing. Apply the brakes several 2. Turn the fuel cock lever to “OFF”.
times at slow speeds to let friction dry out the 3. Drain the carburetor float chamber by loosen-
linings. ing the drain bolt; this will prevent fuel deposits
from building up. Pour the drained fuel into the
EBU25932 fuel tank.
Storage 4. Fill up the fuel tank and add fuel stabilizer (if
available) to prevent the fuel from deteriorat-
Short-term ing.
Always store your ATV in a cool, dry place and, if
necessary, protect it against dust with a porous Specified amount:
cover. 7.5 ml of stabilizer to each liter of fuel (or 1 oz
ECB00720
of stabilizer to each gallon of fuel)
CAUTION:
● Storing the ATV in a poorly ventilated room 5. Perform the following steps to protect the cyl- 9
or covering it with a tarp while it is still wet, inder, piston rings, etc. from corrosion.
will allow water and humidity to seep in and a. Remove the spark plug cap and spark
cause rust. plug.
● To prevent corrosion, avoid damp cellars, b. Pour a teaspoonful of engine oil into the
stables (because of the presence of ammo- spark plug bore.
nia) and areas where strong chemicals are
stored.

9-2
 c. Install the spark plug cap onto the spark °F) or more than 30 °C (90 °F)]. For more in-
plug, and then place the spark plug on the formation on storing the battery, see page
cylinder head so that the electrodes are 8-34.
grounded. (This will limit sparking during
NOTE:
the next step.)
Make any necessary repairs before storing the
d. Turn the engine over several times with the
ATV.
starter. (This will coat the cylinder wall with
oil.)
e. Remove the spark plug cap from the spark
plug, and then install the spark plug and
the spark plug cap.
6. Lubricate all control cables and the pivoting
points of all levers and pedals.
7. Check and, if necessary, correct the tire air
pressure, and then block up the ATV so that
all of its wheels are off the ground. Alternative-
ly, turn the wheels a little every month in order
9 to prevent the tires from becoming degraded
in one spot.
8. Cover the muffler outlet with a plastic bag to
prevent moisture from entering it.
9. Remove the battery and fully charge it. Store
it in a cool, dry place and charge it once a
month. Do not store the battery in an exces-
sively cold or warm place [less than 0 °C (30

9-3
EBU25960

SPECIFICATIONS
Dimensions: Compression ratio:
Overall length: 9.20 :1
1940 mm (76.4 in) Starting system:
Overall width: Electric and recoil starter
1085 mm (42.7 in) Lubrication system:
Overall height: Wet sump
1120 mm (44.1 in) Engine oil:
Seat height: Type:
827 mm (32.6 in) SAE 5W-30 or SAE 10W-30 or SAE 10W-40 or SAE
Wheelbase: 15W-40 or SAE 20W-40 or SAE 20W-50
1250 mm (49.2 in)
Ground clearance:
-20 -10 0 10 20 30 40 50 ˚C
180 mm (7.1 in)
Minimum turning radius:
3000 mm (118 in) SAE 5W-30
Weight: SAE 10W-30
With oil and fuel:
YFM350A 250.0 kg (551 lb) SAE 10W-40
YFM350FWA 265.0 kg (584 lb)
SAE 15W-40
Engine:
10
Engine type: SAE 20W-40
Air cooled 4-stroke, SOHC
Cylinder arrangement: SAE 20W-50
Forward-inclined single cylinder
Displacement:
348.0 cm³ Recommended engine oil grade:
Bore × stroke: API service SG type or higher, JASO standard MA
83.0 × 64.5 mm (3.27 × 2.54 in)

10-1
 Engine oil quantity: Spark plug (s):
Without oil filter cartridge replacement: Manufacturer/model:
2.20 L (2.33 US qt) (1.94 Imp.qt) NGK/DR8EA
With oil filter cartridge replacement: Spark plug gap:
2.30 L (2.43 US qt) (2.02 Imp.qt) 0.6–0.7 mm (0.024–0.028 in)
Final gear oil: Clutch:
Type: Clutch type:
SAE 80 API GL-4 Hypoid gear oil Wet, centrifugal automatic
Quantity: Transmission:
0.23 L (0.24 US qt) (0.20 Imp.qt) Primary reduction system:
Differential gear oil: V-belt
Type: Secondary reduction system:
YFM350FWA SAE 80 API GL-4 Hypoid gear oil Shaft drive
Quantity: Secondary reduction ratio:
YFM350FWA 0.35 L (0.37 US qt) (0.31 Imp.qt) 41/21 × 24/18 × 33/9 (9.545)
Air filter: Transmission type:
Air filter element: V-belt automatic
Wet element Operation:
Fuel: Left hand operation
Recommended fuel: Forward gear:
Regular unleaded gasoline only 35/20 (1.750)
Fuel tank capacity: Reverse gear:
13.5 L (3.57 US gal) (2.97 Imp.gal) 26/15 (1.733)
10 Chassis:
Fuel reserve amount:
3.3 L (0.87 US gal) (0.73 Imp.gal) Frame type:
Carburetor: Steel tube frame
Manufacturer: Caster angle:
MIKUNI 4.0 °
Type × quantity: Trail:
BSR33 x 1 21.0 mm (0.83 in)

10-2
Front tire: Maximum:
Type: Front:
Tubeless 28.0 kPa (4.1 psi) (0.280 kgf/cm²)
Size: Rear:
AT25 x 8-12 31J 28.0 kPa (4.1 psi) (0.280 kgf/cm²)
Manufacturer/model: Front wheel:
MAXXIS/M911Y Wheel type:
Rear tire: Panel wheel
Type: Rim size:
Tubeless 12 x 6.0AT
Size: Rear wheel:
AT25 x 10-12 38J Wheel type:
Manufacturer/model: Panel wheel
MAXXIS/M912Y Rim size:
Loading: 12 x 7.5AT
Maximum loading limit: Front brake:
196.0 kg (432 lb) Type:
(Total weight of rider, cargo, accessories, and tongue) Dual disc brake
Tire air pressure (measured on cold tires): Operation:
Recommended: Right hand operation
Front: Recommended fluid:
25.0 kPa (3.6 psi) (0.250 kgf/cm²) DOT 4 (for front and rear reservoirs)
Rear: Rear brake:
10
25.0 kPa (3.6 psi) (0.250 kgf/cm²) Type:
Minimum: Drum brake
Front: Operation:
22.0 kPa (3.2 psi) (0.220 kgf/cm²) Left hand and right foot operation
Rear: Unified brake system:
22.0 kPa (3.2 psi) (0.220 kgf/cm²) Functioning brake:
Front and rear brakes

10-3
 Operation: Bulb voltage, wattage × quantity:
Right foot operation Headlight:
Front suspension: 12 V, 35.0/35.0 W × 1
Type: Tail/brake light:
Double wishbone 12 V, 5.0/21.0 W × 1
Spring/shock absorber type: Front turn signal light:
Coil spring/oil damper 12 V, 10.0 W × 2
Wheel travel: Rear turn signal light:
160 mm (6.3 in) 12 V, 10.0 W × 2
Rear suspension: Auxiliary light:
Type: 12 V, 5.0 W × 1
Swingarm (monocross) Meter lighting:
Spring/shock absorber type: 14 V, 3.0 W × 1
Coil spring/oil damper Neutral indicator light:
Wheel travel: 12 V, 1.7 W × 1
180 mm (7.1 in) High beam indicator light:
Electrical system: 12 V, 1.7 W × 1
Ignition system: Turn signal indicator light:
DC. CDI 12 V, 1.7 W × 1
Charging system: Reverse indicator light:
AC magneto 12 V, 1.7 W × 1
Battery: Oil temperature warning light:
Model: 12 V, 1.7 W × 1
10 On-command four-wheel-drive indicator light:
YTX14AH
Voltage, capacity: YFM350FWA 12 V, 1.7 W × 1
12 V, 12.0 Ah Fuses:
Headlight: Main fuse:
Bulb type: 30.0 A
Halogen bulb Headlight fuse:
15.0 A
Signaling system fuse:
10.0 A
10-4
Ignition fuse:
15.0 A
Auxiliary DC jack fuse:
10.0 A
Accessory fuse:
7.5 A
Four-wheel-drive motor fuse:
YFM350FWA 3.0 A

10

10-5
 EBU26000

CONSUMER INFORMATION
EBU26011 EBU26020
Identification numbers Key identification number
Record the key identification number, vehicle iden- The key identification number is stamped into the
tification number and model label information in key. Record this number in the space provided and
the spaces provided below for assistance when or- use it for reference when ordering a new key.
dering spare parts from a Yamaha dealer or for ref-
erence in case the ATV is stolen.
KEY IDENTIFICATION NUMBER:

VEHICLE IDENTIFICATION NUMBER:

1. Key identification number

MODEL LABEL INFORMATION:
EBU26040

11 Vehicle identification number

The vehicle identification number is stamped into
the frame.

11-1
 1

1. Vehicle identification number (front right side) 1. Vehicle identification number

2. Year of manufacture
The year of manufacture is listed in the vehicle
identification number as shown in the illustration.
NOTE:
The vehicle identification number is used to identify
your ATV.

EBU26050
Model label
The model label is affixed at the location in the il-
lustration. Record the information on this label in 11
the space provided. This information will be need-
ed when ordering spare parts from a Yamaha deal-
er.

11-2
 1. Model label

11

11-3
 INDEX
A D
Accessories and loading ................................................ 6-6 Differential gear oil (4WD model) ................................... 5-3
Air filter element, cleaning ............................................ 8-20 Differential gear oil, changing (4WD model) ................ 8-18
Auxiliary light bulb ........................................................ 8-38 Drive select lever ......................................................... 4-10
Axle boots .................................................................... 8-31 Drive select lever and driving in reverse ........................ 6-3
B Drive select lever safety system cable, adjusting ........ 8-26
Battery .......................................................................... 8-34 E
Brake fluid, changing ................................................... 8-28 Engine break-in .............................................................. 6-4
Brake fluid level, checking ........................................... 8-27 Engine, cold start ........................................................... 6-1
Brake lever free play, checking the front ...................... 8-29 Engine idling speed ..................................................... 8-24
Brake lever, front ............................................................ 4-8 Engine oil ....................................................................... 5-3
Brake lever, rear ............................................................ 4-8 Engine oil and oil filter cartridge ................................... 8-11
Brake lever (rear) and brake pedal free play, Engine, starting a warm ................................................. 6-3
and brake pedal position, checking ........................... 8-29 Engine stop switch ......................................................... 4-4
Brake levers, checking and lubricating ........................ 8-32 F
Brake light switches ..................................................... 8-31 Final gear oil ......................................................... 5-3, 8-15
Brake pads and shoes, checking ................................. 8-26 Four-wheel-drive indicator light (4WD model) ............... 4-3
Brake pedal .................................................................... 4-9 Fuel ....................................................................... 4-11, 5-3
Brake pedal, checking and lubricating ......................... 8-33 Fuel cock ..................................................................... 4-13
Brakes, front and rear .................................................... 5-3 Fuel tank cap ............................................................... 4-11
C Fuses, replacing .......................................................... 8-36
Cables, checking and lubricating ................................. 8-32 H
Carburetor, adjusting ................................................... 8-23 Handlebar switches ....................................................... 4-4
Carrier, front ................................................................. 4-17 Hazard switch ................................................................ 4-5
Carrier, rear .................................................................. 4-17 Headlight beam ............................................................ 8-37
Catalytic converter ....................................................... 4-20 Headlight bulb .............................................................. 8-37
Chassis fasteners .......................................................... 5-7 High beam indicator light ............................................... 4-2
Cleaning ......................................................................... 9-1 Horn switch .................................................................... 4-5
I S
Identification numbers .................................................. 11-1 Safety information .......................................................... 1-1
Indicator lights and warning light .................................... 4-2 Seat .............................................................................. 4-15
Instruments, lights and switches .................................... 5-7 Shock absorber assemblies, adjusting the front .......... 4-17
K Shock absorber assembly, adjusting the rear .............. 4-19
Key identification number ............................................. 11-1 Spark plug, checking ...................................................... 8-9
L Specifications ............................................................... 10-1
Label locations ............................................................... 2-1 Speed limiter .................................................................. 4-7
Light switch .................................................................... 4-5 Speedometer .................................................................. 4-3
M Starter (choke) ............................................................. 4-14
Main switch .................................................................... 4-1 Start switch ..................................................................... 4-4
Maintenance and lubrication chart ................................. 8-5 Steering lock ................................................................ 4-15
Maintenance chart, emission control system ................. 8-3 Steering shaft, lubricating ............................................. 8-34
Model label ................................................................... 11-2 Storage ........................................................................... 9-2
N Storage compartment ................................................... 4-16
Neutral indicator light ..................................................... 4-2 T
O Tail/brake light bulb, replacing ..................................... 8-37
Throttle cable free play, adjusting ................................ 8-25
Oil temperature warning light ......................................... 4-2
Throttle lever ........................................................... 4-6, 5-4
On-Command four-wheel-drive switch (4WD model) ..... 4-5
Tire pressure, measuring ............................................... 5-5
Owner’s manual and tool kit ........................................... 8-1
Tires ............................................................................... 5-4
P
Tire wear limit ................................................................. 5-6
Panel, removing and installing ....................................... 8-9
Troubleshooting ........................................................... 8-40
Parking ........................................................................... 6-5
Troubleshooting chart .................................................. 8-41
Parking brake ................................................................. 4-9
Turn signal indicator light ............................................... 4-2
Parking on a slope ......................................................... 6-5
Turn signal light bulb, replacing ................................... 8-38
Part locations ................................................................. 3-1
Turn signal switch .......................................................... 4-5
Pre-operation check list .................................................. 5-1
V
R
Valve clearance ............................................................ 8-25
Recoil starter ................................................................ 4-10
V-belt case drain plug .................................................. 8-23
Reverse indicator light .................................................... 4-2
V-belt cooling duct check hose .................................... 8-23
Riding your ATV ............................................................. 7-1
Vehicle identification number ....................................... 11-1
W
Wheel hub bearings, checking ..................................... 8-34
Wheel, installing ........................................................... 8-39
Wheel, removing .......................................................... 8-38
YAMAHA MOTOR CO., LTD.
PRINTED IN FRANCE
2008.01
(E)