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LOCATION OF THE WARNING AND
SPECIFICATION LABELS .......................1-1
SAFETY INFORMATION .........................2-1
DESCRIPTION AND MACHINE
IDENTIFICATION.....................................3-1
Identification number records ...............3-3
Key identification number .....................3-5
Vehicle identification number ...............3-7
Model label ...........................................3-9
CONTROL FUNCTIONS .........................4-1
Main switch ...........................................4-1
Handlebar switches ..............................4-3
Throttle lever ........................................4-5
Throttle OverRide System ....................4-7
Speed limiter ........................................4-9
Clutch lever ........................................4-11
4
3
2
1Front brake lever ................................4-11
Brake pedal ........................................4-13
Parking brake .....................................4-13
Shift pedal ..........................................4-17
Kick starter .........................................4-17
Fuel tank cap ......................................4-19
Fuel cock ............................................4-19
Starter (choke) ....................................4-21
Seat ....................................................4-23
Front shock absorber adjustment .......4-25
Rear shock absorber adjustment .......4-29
PRE-OPERATION CHECKS ...................5-1
Front and rear brakes ...........................5-5
Fuel ....................................................5-11
Engine mixing oil ................................5-15
Transmission oil .................................5-17
Chain ..................................................5-21
Throttle lever ......................................5-21
5
EBU00015
CONTENTS
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4-5
EBU00063
Throttle lever
Once the engine is running, movement of the
throttle lever will increase the engine speed.
Regulate the speed of the machine by varying
the throttle position. Because the throttle is
spring-loaded, the machine will decelerate, and
the engine will return to an idle any time the hand
is removed from the throttle lever.
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.
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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 operation of the throttle lever before you
start the engine. If the throttle does not work
smoothly, check for the cause. Correct the
problem before riding the ATV or consult a
Yamaha dealer.
q
1. Throttle lever1. Levier d’accélération1. Palanca del aceleración
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6-9
EBU00180
Starting a warm engine
To start a warm engine, refer to the “Starting a
cold engine” section. The starter (choke) should
not be used. The throttle should be opened
slightly.
EBU00538
Warming up
To get maximum engine life, always warm up
the engine before starting off. Never accelerate
hard with a cold engine! To see whether or not
the engine is warm, check if it responds to the
throttle normally with the starter (choke) turned
off.
NOTE:
When the parking brake is used, engine speed
is limited to 2,300 r/min. Be sure the parking
brake is released before moving the throttle
lever. Otherwise, the engine will misfire, pre-
venting normal operation.
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EBU10981
Transmission oil
Transmission oil measurement
1. Place the ATV on a level surface.
2. Warm up the engine for several minutes,
and then stop it.
3. Remove the oil filler cap and wipe off the
dipstick with a clean rag. Insert the dipstick
in the filler hole without screwing it in.
NOTE:
Wait a few minutes until the oil level settles
before checking.
4. Remove the dipstick and check the oil
level.
5. The oil level should be between the mini-
mum and maximum level marks. If the
level is low, add oil to raise it to the proper
level.
6. Install the oil filler cap.
q
w
e
1. Dipstick
2. Maximum level mark 3. Minimum level mark
1. Jauge
2. Repère de niveau maximum 3. Repère de niveau minimum
1. Varilla de nivel
2. Marca de máximo 3. Marca de mínimo
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q
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1. Maximum level mark
2. Minimum level mark
1. Repère maximum
2. Repère minimum
1. Marca de máximo
2. Marca de mínimo
8-23
7. Start the engine and warm up for a few
minutes. While warming up, check for oil
leakage. If oil leakage is found, stop the
engine immediately, and check for the
cause.
8. Turn the engine off, and then check the oil
level and correct it if necessary.
EBU01080
Cooling system
1. Check the coolant level in the coolant
reservoir when the engine is cold as the
coolant level will vary with engine temper-
ature. The coolant level should be
between the maximum and minimum
marks.
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8-37
12. Run the engine several minutes. Stop the
engine, and then check the coolant level in
the radiator. If it is low, add more coolant
until it reaches the top of the radiator.
13. Fill the coolant reservoir with coolant up to
the maximum level.
14. Install the coolant reservoir cap and check
for coolant leakage.
NOTE:
If any leakage is found, ask a Yamaha dealer to
inspect the cooling system.
15. Install the radiator cover by installing the
bolts.
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8-49
NOTE:
The air filter element should be cleaned every
20-40 hours. It should be cleaned and lubricated
more often if the machine is operated in
extremely dusty areas. Each time the air filter
element maintenance is performed, check the
air inlet to the filter case for obstructions. Check
the air filter case rubber joint to the carburetor
and manifold fittings for an airtight seal. Tighten
all fittings securely to avoid the possibility of
unfiltered air entering the engine.
cC
Never operate the engine with the air filter
element removed. This will allow unfiltered
air to enter, causing rapid engine wear and
possible engine damage. Additionally, opera-
tion without the air filter element will affect
carburetor jetting with subsequent poor per-
formance and possible engine overheating.
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EBU03004
Carburetor settings
In extremely cold weather, it is necessary to
change the carburetor settings to maintain opti-
mum engine performance and to prevent engine
damage.
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8Improperly servicing or adjusting the car-
buretors could cause malfunction with the
possibility of an accident or the carbure-
tors could leak fuel, which would be a fire
hazard.
8Carburetor adjustments should only be
performed by a Yamaha dealer. Do not
attempt to perform these procedures
unless you have mechanical knowledge
and the necessary tools.
8Do not perform this procedure while the
engine is hot. Place a rag under each car-
buretor to catch any fuel. Wipe up any
spilled fuel completely.
8After servicing the carburetors, always
check throttle operation before operating
the ATV to make sure it is working correctly.
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