check engine YAMAHA YFM600FWA 2001 Owners Manual

EBU00015
CONTENTS
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 ........... 3-5
Model label ......................................... 3-7
CONTROL FUNCTIONS ......................... 4-1
Main switch......................................... 4-1
Indicator lights .................................... 4-3
Oil temperature warning light
checking method .............................. 4-5
Speedometer .................................... 4-11
Fuel gauge ........................................ 4-11
Handlebar switches .......................... 4-13
Throttle lever .................................... 4-19
Speed limiter .................................... 4-21
Front brake lever .............................. 4-23Rear brake pedal and lever.............. 4-25
Parking brake .................................... 4-27
Drive select lever .............................. 4-29
Recoil starter..................................... 4-29
Fuel tank cap..................................... 4-31
Fuel cock ........................................... 4-33
Starter (choke) “ ” ........................ 4-35
Seat ................................................... 4-37
Storage box ...................................... 4-39
Front carrier ...................................... 4-39
Rear carrier ....................................... 4-39
Rear shock absorber
adjustment...................................... 4-41
Auxiliary DC connector .................... 4-43
PRE-OPERATION CHECKS .................... 5-1
Front and rear brakes......................... 5-7
Fuel .................................................... 5-11
Engine oil .......................................... 5-15
Final gear oil/Differential
gear oil ............................................ 5-19
Throttle lever .................................... 5-19
Fittings and Fasteners...................... 5-21
Lights................................................. 5-211
2
3
4
5

4-5
EBU00733
Oil temperature warning light checking method
ACB-10E
Turn the main switch to “ON” and
the engine stop switch to “RUN”.
Oil temperature warning
light does not come on.Oil temperature warning
light comes on.
Check engine oil temperature.
Oil temperature warning
light does not come on.
Engine oil temperature
and electrical circuit are
OK. Go ahead with riding.
Push start switch with the
transmission in neutral.
Ask a Yamaha dealer to
inspect the electrical circuit.
Oil tempera-
ture is low.
Allow to cool.
Oil tempera-
ture is high.Oil temperature
warning light comes
on momentarily.

4-19
1. Throttle lever
1. Levier d’accélération
1. Palanca de aceleración
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.
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 before riding the ATV or consult a
Yamaha dealer.

5-1
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PRE-OPERATION CHECKS
Before using this machine, check the following points:
ITEM ROUTINE PAGE
Front brake• Check operation, free play, fluid level and fluid leakage.
• Fill with DOT 4 (or DOT 3) brake fluid if necessary.5-7 ~ 5-9,
8-51 ~ 8-67
Rear brake• Check operation and free play.
Fuel• Check fuel level.
• Fill with fuel if necessary.5-11 ~ 5-13
Engine oil• Check oil level.
• Fill with oil if necessary.5-15 ~ 5-17,
8-15 ~ 8-23
Final gear oil/
Differential gear oil• Check for leakage. 5-19, 8-25 ~ 8-33
Throttle• Check for proper throttle cable operation. 5-19, 8-49
Wheels and tires• Check tire pressure, wear and damage.5-23 ~ 5-29,
8-71 ~ 8-73
Fittings and Fasteners• Check all fittings and fasteners. 5-21
Lights• Check for proper operation. 5-21, 8-83
Front axle boots• Check for damage. 8-33

5-21
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Fittings and Fasteners
Always check the tightness of chassis fittings
and fasteners before a ride. Take the machine
to a Yamaha dealer or refer to the Service Man-
ual for correct tightening torque.
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Lights
Check the headlight and taillight to make sure
they are in working condition. Repair as neces-
sary for proper operation.
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Switches
Check the operation of the headlight switch,
engine stop switch and any other switches. Re-
pair as necessary for proper operation.

6-9
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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.
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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.

8-7
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PERIODIC MAINTENANCE/LUBRICATION
ITEM ROUTINEINITIAL EVERY
1
month3
months6
months6
months1
year
Valves*• Check valve clearance.
• Adjust if necessary.
Spark plug• Check condition.
• Adjust gap and clean.
• Replace if necessary.
Air filter• Clean.
• Replace if necessary.Every 20~40 hours
(More often in wet or dusty areas.)
Carburetor*• Check idle speed/starter operation.
• Adjust if necessary.
Crankcase breather
system*• Check breather hose for cracks or damage.
• Replace if necessary.
Exhaust system*• Check for leakage.
• Retighten if necessary.
• Replace gasket(s) if necessary.
Fuel line*• Check fuel hose for cracks or damage.
• Replace if necessary.
Engine oil• Replace (Warm engine before draining).
Engine oil filter• Replace.
Engine oil strainer*• Clean.
Final gear oil• Check oil level/oil leakage.
• Replace every 12 months.
Differential gear oil
Front brake*• Check operation/fluid leakage/see NOTE page 8-8.
• Correct if necessary.
Rear brake*• Check operation.
• Adjust if necessary.
V-belt*• Check operation.
• Check for cracks or damage every 12 months or
2,400 km whichever comes first.

8-15
EBU00537
Engine oil
1. Engine oil level measurement
a. Place the machine on a level place.
b. Warm up the engine for several minutes
and stop it.
c. With the engine stopped, check the oil lev-
el through the level window located at the
lower part of the left side crankcase cover.
NOTE:
Wait a few minutes until the oil level settles be-
fore checking.
d. The oil level should be between the maxi-
mum and minimum marks. If the level is
low, fill engine with sufficient oil to raise it
to the specified level.
CAUTION:
Be sure no foreign material enters the crank-
case.
1. Level window 2. Minimum level mark
3. Maximum level mark
1. Hublot de contrôle du niveau 2. Repère de niveau minimum
3. Repère de niveau maximum
1. Ventanilla de nivel de aceite 2. Marca de nivel mínimo
3. Marca de nivel máximo

8-23
j. Fill the engine with oil and install the oil
filler cap.
CAUTION:
Be sure no foreign material enters the crank-
case.
k. Warm up the engine for several min-
utes at idle speed. Check for oil leak-
age while warming up.
CAUTION:
If oil leakage is found, stop the engine immedi-
ately and check for the cause.Recommended oil:
See page 10-2.
Oil quantity:
Periodic oil change:
1.9 L
With oil filter replacement:
2.0 L
Total amount:
2.6 L

8-43
8. Reinstall the element to the element
guide.
9. Reinstall the element assembly and parts
removed for access.
NOTE:
The air filter element should be cleaned every
20 ~ 40 hours. It should be cleaned and lubri-
cated more often if the machine is operated in
extremely dusty areas. Each time filter element
maintenance is performed, check the air inlet
to the filter case for obstructions. Check the air
cleaner rubber joint to the carburetor and man-
ifold fittings for an air-tight seal. Tighten all fit-
tings securely to avoid the possibility of
unfiltered air entering the engine.
CAUTION:
Never operate the engine with the air filter el-
ement removed. This will allow unfiltered air
to enter, causing rapid engine wear and possi-
ble engine damage. Additionally, operation
without the filter element will affect carbure-
tor jetting with subsequent poor performance
and possible engine overheating.