2001 YAMAHA WARRIOR 350 air filter

ER
Yuki_Data:Yuki_data:Yuki:Yuki_1:ATV:HM00B067_YFM350X-60:YFM350TOC-E.frame
OPERATION ........................................... 6-1
Starting a cold engine ....................... 6-3
Starting a warm engine ..................... 6-9
Warming up ........................................ 6-9
Drive select lever operation and
reverse driving ............................... 6-11
Shifting ............................................. 6-15
To start out and accelerate .............. 6-17
To decelerate .................................... 6-21
Engine break-in ................................ 6-23
Parking .............................................. 6-27
Parking on a slope ........................... 6-29
Accessories and loading ................. 6-31
RIDING YOUR ATV ................................ 7-1
Getting to know your ATV ................. 7-3
Ride with care and good
judgement ........................................ 7-5
Be careful where you ride ............... 7-27
Turning your ATV ............................ 7-39
Climbing uphill ................................. 7-45
Riding downhill ................................ 7-55
Crossing a slope ............................... 7-59
Crossing through shallow water .... 7-63
Riding over rough terrain ................ 7-67Sliding and skidding ........................ 7-69
What to do if ..................................... 7-73
What to do ........................................ 7-73
PERIODIC MAINTENANCE AND
ADJUSTMENT ....................................... 8-1
Owner’s manual and tool kit ............. 8-3
Periodic maintenance/lubrication ..... 8-7
Engine oil .......................................... 8-15
Spark plug inspection ...................... 8-25
Air filter cleaning.............................. 8-29
Carburetor adjustment .................... 8-33
Idle speed adjustment ..................... 8-35
Valve clearance adjustment ............ 8-37
Throttle lever adjustment ................ 8-37
Front and rear brake pad
inspection ....................................... 8-39
Inspecting the brake fluid level ....... 8-41
Brake fluid replacement .................. 8-45
Front brake lever free play
adjustment ..................................... 8-47
Rear brake adjustment .................... 8-49
Parking brake adjustment ............... 8-51
Clutch lever free play adjustment... 8-55
Drive chain slack check.................... 8-57
Drive chain slack adjustment .......... 8-59
67
8

7-65
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Test your brakes after leaving the water. Do
not continue to ride your ATV without verifying
that you have regained proper braking ability.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.
Wash the ATV in fresh water if it has been op-erated in salt water or muddy conditions.
1. Check hose
1. Flexible de contrôle
1. Manguito de retención

8-7
Yuki_Data:Yuki_data:Yuki:Yuki_1:ATV:HM00B067_YFM350X-60:YFM350-8.frame
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EBU00262
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 if necessary.
Fuel line*
• Check fuel hose for cracks or damage.
• Replace if necessary.
Engine oil
• Replace (Warm engine before draining).
Engine oil filter
• Clean.
• Replace if necessary.
Engine oil strainer
• Clean.
Drive chain
• Check and adjust slack/alignment/clean/lube.
Brakes*
• Check operation/fluid leakage/see NOTE page 8-8.
• Correct if necessary.
Clutch*
• Check operation.
• Adjust if necessary.
Wheels*
• Check balance/damage/runout.
• Replace if necessary.

8-29
Yuki_Data:Yuki_data:Yuki:Yuki_1:ATV:HM00B067_YFM350X-60:YFM350-8.frame
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EBU00291
Air filter cleaningNOTE: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 elementand air filter case.
1. Remove the seat.
2. Remove the air filter case cover.
3. Remove the air filter element, and sepa-
rate it from the guide.
4. Wash the element gently but thoroughly
in solvent.
WARNING
Always use parts cleaning solvent to clean the
air filter element. Never use low flash point sol-
vents or gasoline to clean the air filter elementbecause the engine could catch fire or explode.
5. Squeeze the excess solvent out of the fil-
ter and let it dry.CAUTION:Do not twist the filter element when squeez-ing it.
1. Air filter case cover
1. Couvercle du boîtier de filtre à air
1. Tapa de la caja del filtro1. Check hose
1. Flexible de contrôle
1. Manguito de comprobación

8-31
Yuki_Data:Yuki_data:Yuki:Yuki_1:ATV:HM00B067_YFM350X-60:YFM350-8.frame
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6. Inspect the element. If damaged, replace
it.
7. Apply SAE 10W30 motor oil to the ele-
ment.NOTE:The element should be wet but not dripping.
8. Apply all-purpose grease to the air filter
element seat.
9. Reinstall the element to the element
guide.
10. 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 airtight seal. Tighten all fit-
tings securely to avoid the possibility ofunfiltered air entering the engine.
1. Unlock
1. Déverrouiller
1. Levántelo1. Element retaining plate 2. Guide
3. Air filter element
1. Plaquette de retenue d’élément 2. Guide
3. Élément du filtre à air
1. Element plate 2. Guía
3. Elemento filtrante

8-33
Yuki_Data:Yuki_data:Yuki:Yuki_1:ATV:HM00B067_YFM350X-60:YFM350-8.frame
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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 performanceand possible engine overheating.
EBU00296
Carburetor adjustment
The carburetor is a vital part of the engine and
requires very sophisticated adjustment. Most
adjusting should be left to a Yamaha dealer
who has the professional knowledge and expe-
rience to do so. However, the idling speed may
be performed by the owner as a part of the
usual maintenance routine.CAUTION:The carburetor was set at the Yamaha factory
after many tests. If the settings are disturbed
by someone without sufficient technical
knowledge, poor engine performance anddamage may result.

10-3
Yuki_Data:Yuki_data:Yuki:Yuki_1:ATV:HM00B067_YFM350X-60:YFM350-SPEC-E.frame
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Quantity:
Periodic oil change (engine oil)
Periodic oil change
(engine oil with oil filter replacement)
Total amount2.4 L
2.5 L
3.2 L
Air filter: Wet type element
Fuel:
Type
Tank capacity
Reserve amountRegular unleaded gasoline
9.0 L
1.9 L
Carburetor:
Type/manufacturer BTM36SH / MIKUNI
Spark plug:
Type/manufacturer
GapDR8EA / NGK
0.6 ~ 0.7 mm
Clutch:
Type
OperationWet, Multiple-disc
Left hand operation
Transmission:
Primary reduction system
Primary reduction ratio
Secondary reduction system
Secondary reduction ratio
Transmission type
OperationSpur gear
76/24 (3.166)
Chain drive
40/13 (3.077)
Constant mesh, 6-speed forward, 1-speed reverse
Left foot operation MODEL YFM350X