service YAMAHA WARRIOR 350 2001 User Guide

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Brake fluid replacement
1. Complete fluid replacement should be
done only by trained Yamaha service per-
sonnel.
2. Have a Yamaha dealer replace the follow-
ing components during periodic mainte-
nance or when they are damaged or
leaking.
a. Replace all rubber seals every two years.
b. Replace all hoses every four years.

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Front brake lever free play adjustment
The front brake lever free play should be 4 ~
8 mm. If the free play is incorrect, adjust it as
follows.
1. Loosen the locknut.
2. Turn the adjusting bolt so that the brake
lever movement is 4 ~ 8 mm before the
adjusting bolt contacts the master cylin-
der piston.
3. Tighten the locknut.
WARNING
Operating with improperly serviced or adjust-
ed brakes could cause loss of braking ability,
which could lead to an accident.
After servicing:l
Make sure the brakes operate smoothly
and that the free play is correct.
l
Make sure the brakes do not drag.
l
Make sure the brakes are not spongy. All
air must be bled from the brake system.
Replacement of brake components requires
professional knowledge. These procedures
should be performed by a Yamaha dealer.
1. Locknut 2. Adjusting bolt a. 4 ~ 8 mm
1. Contre-écrou 2. Boulon de réglage
1. Contratuerca 2. Perno de ajuste

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a. 10 mm
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Rear brake adjustmentNOTE:Adjust the rear brake before inspecting the rearbrake pads.
Pedal height adjustment
The top of the brake pedal should be posi-
tioned 10 mm below the top of the footrest. If
not, ask a Yamaha dealer to adjust it.
WARNING
Operating with improperly serviced or adjust-
ed brakes could cause loss of braking ability,
which could lead to an accident.
After servicing:l
Make sure the brakes operate smoothly
and that the free play is correct.
l
Make sure the brakes do not drag.
l
Make sure the brakes are not spongy. All
air must be bled from the brake system.
Replacement of brake components requires
professional knowledge. These procedures
should be performed by a Yamaha dealer.

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Troubleshooting
Although Yamaha machines receive a rigid in-
spection before shipment from the factory,
trouble may occur during operation.
Any problem in the fuel, compression, or igni-
tion systems can cause poor starting and loss
of power. The troubleshooting chart describes
a quick, easy procedure for making checks. If
your machine requires any repair, take it to a
Yamaha dealer.
The skilled technicians at a Yamaha dealership
have the tools, experience, and know-how to
properly service your machine. Use only genu-
ine Yamaha parts on your machine. Imitation
parts may look like Yamaha parts, but they are
often inferior. Consequently, they have a short-
er service life and can lead to expensive repair
bills.
WARNING
Do not smoke when checking the fuel system.
Fuel can ignite or explode, causing severe inju-
ry or property damage. Make sure there are no
open flames or sparks in the area, including pi-lot lights from water heaters or furnaces.

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Engine oil:
Type
-20°
-10°0°10°20°30°40°
50°C
5W/30
10W/30
10W/40
20W/5020W/4015W/40

Recommended engine oil classification: API Service SE, SF, SG type or higherMODEL YFM350X
CAUTION
:
Be sure to use motor oils that do not contain anti-
friction modifiers. Passenger car motor oils (often
labeled “Energy Conserving”) contain anti-friction
additives which will cause clutch and/or starter
clutch slippage, resulting in reduced componentlife and poor engine performance.

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Huile de moteur:
Type
-20°
-10°0°10°20°30°40°
50°C
5W/30
10W/30
10W/40
20W/5020W/4015W/40

Classification d’huile de moteur recommandée: API Service de type SE, SF, SG ou supérieurModèle YFM350X
ATTENTION:
Veiller à ce que l’huile de moteur utilisée ne contienne pas
d’additifs antifriction. Les huiles pour automobiles (por-
tant souvent la désignation “ENERGY CONSERVING”)
contiennent des additifs antifriction. Ceux-ci feront pati-
ner l’embrayage et/ou l’embrayage de démarreur, ce qui
provoquera une réduction de la durabilité des organes etdu rendement.