2001 YAMAHA WARRIOR 350 check engine light

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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
Handlebar switches............................ 4-5
Throttle lever ...................................... 4-9
Speed limiter .................................... 4-11
Clutch lever ....................................... 4-13
Front brake lever .............................. 4-13
Rear brake pedal .............................. 4-15
Parking brake .................................... 4-17
Shift pedal......................................... 4-21Drive select lever...............................4-21
Fuel tank cap .....................................4-23
Fuel cock ............................................4-23
Starter (choke) ...................................4-25
Seat ....................................................4-27
Front shock absorber adjustment....4-29
Rear shock absorber adjustment .....4-31
PRE-OPERATION CHECKS .....................5-1
Front and rear brakes .........................5-5
Fuel.......................................................5-9
Engine oil ...........................................5-13
Chain ..................................................5-15
Throttle lever .....................................5-17
Fittings and Fasteners ......................5-17
Lights .................................................5-17
Switches ............................................5-17
Battery................................................5-19
Tires ...................................................5-19
How to measure tire pressure .........5-23
Tire wear limit ...................................5-25
1234
5

5-1
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PRE-OPERATION CHECKS
Before using this machine, check the following points:
ITEM ROUTINE PAGE
Brake
• Check operation, free play, fluid level and fluid leakage.
• Fill with DOT 4 (or DOT 3) brake fluid if necessary.5-5 ~ 5-7,
8-39 ~ 8-49
Clutch
• Check operation, condition and lever free play. 8-55
Parking brake
• Check operation, condition and cable slack. 8-51 ~ 8-53
Fuel
• Check fuel level.
• Fill with fuel if necessary.5-9 ~ 5-11
Engine oil
• Check oil level.
• Fill with oil if necessary.5-13 ~ 5-15,
8-15 ~ 8-23
Drive chain
• Check chain slack and condition.
• Adjust if necessary.5-15, 8-57 ~ 8-61
Throttle
• Check for proper throttle cable operation. 5-17, 8-37
Wheels and tires
• Check tire pressure, wear and damage.5-19 ~ 5-25,
8-69 ~ 8-71
Fittings and Fasteners
• Check all fittings and fasteners. 5-17
Lights
• Check for proper operation. 5-17, 8-83 ~ 8-89
Battery
• Check fluid level.
• Fill with distilled water if necessary.5-19, 8-73 ~ 8-79

5-17
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Throttle lever
Check to see that the throttle lever operates
correctly. It must open smoothly and spring
back to idle position when released. Repair as
necessary for proper operation.
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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.
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 le-
ver. Otherwise, the engine will misfire, pre-
venting normal operation.

8-23
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Oil pressure check
1. Put a cloth around the cylinder.
2. Slightly loosen the oil gallery bolt in the
cylinder head.
3. Start the engine and keep it idling until oil
begins to seep from the oil gallery. If no oil
comes out after one minute, turn the en-
gine off so it will not seize and find the
cause.
4. Start the engine, and then check the oil
pressure.
5. After checking, tighten the oil gallery bolt
to the specified torque.CAUTION:Be sure to check the oil pressure after replac-ing the engine oil. Tightening torque:
Oil gallery bolt:
7 Nm (0.7 m·kg)
1. Oil gallery bolt
1. Boulon de rampe de graissage
1. Perno del conducto de aceite