2003 YAMAHA WARRIOR 350 check oil

8-21
CAUTION:
Be sure no foreign material enters the crank-
case. 12. Warm up the engine for several minutes at
idle speed. Check for oil leakage while warm-
ing 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:
2.4 L
With oil filter replacement:
2.5 L
Total amount:
3.2 L
U5NF61.book Page 21 Wednesday, June 13, 2001 5:18 PM

8-23 1. Oil gallery bolt
1. Boulon de rampe de graissage
1. Perno del conducto de aceite
Oil pressure check
1. Put a cloth around the cylinder.
2. Slightly loosen the oil gallery bolt in the cylin-
der head.
3. Start the engine and keep it idling until oil be-
gins to seep from the oil gallery. If no oil
comes out after one minute, turn the engine
off so it will not seize and find the cause.
4. Start the engine, and then check the oil pres-
sure.
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·kgf)
U5NF61.book Page 23 Wednesday, June 13, 2001 5:18 PM

8-31 1. Unlock
1. Déverrouiller
1. Levántelo
1. Element retaining plate 2. Guide
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. Guía
3. Elemento del filtro de air
6. Inspect the air filter element. If damaged, re-
place it.
7. Apply SAE 10W30 motor oil to the air filter el-
ement.NOTE:_ The element should be wet but not dripping. _8. Apply all-purpose grease to the air filter ele-
ment seat.
9. Install the air filter element on the guide.
10. Install the air filter element assembly and
parts removed for access.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 air 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 manifold fittings for an airtight
seal. Tighten all fittings securely to avoid the pos-
sibility of unfiltered air entering the engine.
U5NF61.book Page 31 Wednesday, June 13, 2001 5:18 PM

8-43

Refill with the same type of brake fluid. Mixing
fluids may result in a harmful chemical reaction
and lead to poor brake performance.


Be careful that water does not enter the master
cylinder when refilling. Water will significantly
lower the boiling point of the fluid and may re-
sult in vapor lock.


Brake fluid may deteriorate painted surfaces or
plastic parts. Always clean up spilled fluid im-
mediately.


Have a Yamaha dealer check the cause if the
brake fluid level goes down.
U5NF61.book Page 43 Wednesday, June 13, 2001 5:18 PM