2004 YAMAHA WARRIOR 350 oil filter

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 ....................7-67
Sliding and skidding ............................7-69
What to do if ........................................7-73
67
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 ........................ 8-35
Idle speed adjustment ........................ 8-37
Throttle lever adjustment .................... 8-39
Valve clearance adjustment ............... 8-39
Front and rear brake pad
inspection ......................................... 8-41
Brake fluid level check ........................ 8-43
Brake fluid replacement ...................... 8-47
Front brake lever free play.................. 8-49
Brake pedal height adjustment ........... 8-51
Parking brake adjustment ................... 8-53
Adjusting the rear brake light switch ... 8-57
Clutch lever free play adjustment ....... 8-59
Drive chain slack check ...................... 8-61
Drive chain slack adjustment .............. 8-63
Lubricating the drive chain.................. 8-65
Cable inspection and lubrication......... 8-67
8
U5NF63.book Page 2 Wednesday, March 12, 2003 10:06 AM

8-7
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 elementClean.
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.
Tighten 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 elementClean.
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.Wheel bearings*Check bearing assemblies for looseness/damage.
Replace if damaged.U5NF63.book Page 7 Wednesday, March 12, 2003 10:06 AM

8-17 1. Engine oil drain bolt 2. O-ring
3. Compression spring 4. Engine oil strainer
1. Boulon de vidange de l’huile moteur
2. Joint torique
3. Ressort de compression
4. Crépine à huile de moteur
1. Perno de drenaje del aceite de motor
2. Junta tórica
3. Muelle de compresión
4. Tamiz de aceite de motor
5. If the engine oil is below the minimum level
mark, add sufficient oil of the recommended
type to raise it to the correct level.CAUTION:_ Be sure no foreign material enters the crank-
case. _6. Insert the dipstick into the oil filler hole, and
then tighten the engine oil filler cap.
Engine oil replacement and oil filter element
cleaning
1. Place the ATV on a level surface.
2. Warm up the engine for several minutes and
stop it.
3. Place a container under the engine to collect
the used oil.
4. Remove the engine oil filler cap, and then re-
move the drain bolt to drain the oil.CAUTION:_ When removing the drain bolt, the compres-
sion spring, oil strainer and O-ring will fall out.
Take care not to lose these parts. _
U5NF63.book Page 17 Wednesday, March 12, 2003 10:06 AM

8-19 1. Engine oil filter cover 2. Bolt (× 3)
3. Engine oil filter element 4. O-ring
1. Couvercle du filtre à huile de moteur 2. Boulon (× 3)
3.Élément du filtre à huile de moteur
4. Joint torique
1. Tapa del filtro de aceite de motor 2. Perno (× 3)
3. Elemento del filtro de aceite de motor
4. Junta tórica
5. Remove the oil filter cover by removing the
bolts and then remove the oil filter element.
6. Clean the oil strainer and oil filter element
with solvent.
7. Check the O-ring for damage and replace it if
necessary.
8. Install the oil filter element and O-ring.
9. Install the oil filter cover by installing the bolts.
10. Install the oil strainer, compression spring, O-
ring and drain bolt. Tighten the drain bolt and
oil filter cover bolts to the specified torques.CAUTION:_ Before installing the drain bolt, be sure to in-
stall the O-ring, compression spring and oil
strainer. _
U5NF63.book Page 19 Wednesday, March 12, 2003 10:06 AM

8-21
11. Add the specified amount of the recommend-
ed engine oil, and then install the engine oil
filler cap. Tightening torques:
Drain bolt:
32 Nm (3.2 m·kgf)
Filter cover bolt:
10 Nm (1.0 m·kgf)
Recommended oil:
See page 10-2.
Oil quantity:
Periodic oil change:
2.4 L
With oil filter replacement:
2.5 L
Total amount:
3.2 L
U5NF63.book Page 21 Wednesday, March 12, 2003 10:06 AM

8-31 1. Unlock
1. Déverrouiller
1. Levántelo
1. Element retaining plate 2. Frame
3. Air filter element
1. Plaquette de retenue d’élément 2. Guide
3.Élément du filtre à air
1. Placa de retención del elemento 2. Bastidor
3. Elemento del filtro de aire
6. Squeeze the excess solvent out of the air fil-
ter element and let it dry.CAUTION:_ Do not twist the air filter element when squeez-
ing it. _7. Inspect the air filter element. If damaged, re-
place it.
8. Apply SAE 10W30 engine oil to the air filter
element.NOTE:_ The air filter element should be wet but not drip-
ping. _9. Apply all-purpose grease to the air filter ele-
ment seat.
10. Install the air filter element on the frame.
11. Install the air filter element.
12. Install the air filter case cover by installing the
screws.
13. Install the seat.
U5NF63.book Page 31 Wednesday, March 12, 2003 10:06 AM

10-3
Quantity:
Periodic oil change
With oil filter replacement
Total amount2.4 L
2.5 L
3.2 L
Air filter: Wet element
Fuel:
Type
Tank capacity
Reserve amountFor Europe: Regular unleaded gasoline only with a
research octane number of 91 or higher
For Australia: Unleaded gasoline only
9.0 L
1.9 L
Carburetor:
Type
× quantity
ManufacturerBTM36SH
× 1
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 (3.076)
Constant mesh, 6-speed forward, 1-speed reverse
Left foot operation MODEL YFM350X
U5NF63.book Page 3 Wednesday, March 12, 2003 10:06 AM