warning YAMAHA WARRIOR 350 2001 Workshop Manual

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PERIODIC MAINTENANCE AND
ADJUSTMENT
Periodic inspection, adjustment and lubrica-
tion will keep your machine in the safest and
most efficient condition possible. Safety is an
obligation of the machine owner. The most im-
portant points of machine inspection, adjust-
ment and lubrication are explained on the
following pages.
WARNING

Never service an engine while it is running.
Moving parts can catch clothing or parts of the
body, causing injury. Electrical components
can cause shocks or can start fires. Turn off the
engine when performing maintenance unless
otherwise specified. Have a Yamaha dealer
perform service if you are not familiar with
machine service.

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WARNING

Never modify this ATV through improper in-
stallation or use of accessories. Improper in-
stallation of accessories or modification of this
vehicle may cause changes in handling which
in some situations could lead to an accident.
All parts and accessories added to this vehicle
should be genuine Yamaha or equivalent com-
ponents designed for use on this ATV and
should be installed and used according to in-
structions. If you have questions, consult an
authorized Yamaha ATV dealer.

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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

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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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a. Cable length (46 ~ 50 mm)
a. Longueur de câble (46 à 50 mm)
a. Longitud del cable (46 ~ 50 mm)
4. Turn the adjusting bolt on the lever holder
so that cable length a is 46 ~ 50 mm.
5. Tighten the locknut on the lever holder.
WARNING
Operating with improperly adjusted brakes
could cause the brakes to malfunction result-
ing in reduced braking performance. This
could increase the chance of a collision or acci-
dent. After adjusting the parking brake, block
the rear of the machine off the ground and
spin the rear wheels. Check to make sure there
is no brake drag. If brake drag is noticed, per-form the adjustment again.

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Cable inspection and lubrication
WARNING
Inspect cables frequently and replace if dam-
aged. Corrosion can result when the outer
covering of control cables becomes damaged.
Cables can also become frayed or kinked. Op-
eration of controls could be restricted, whichcould cause an accident or injury.
Lubricate the inner cables and the cable ends.
If the cables do not operate smoothly, ask a
Yamaha dealer to replace them.
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Brake and shift pedal/brake and clutch lever
lubrication
Lubricate the pivoting parts of each lever and
pedal.Recommended lubricant:
Engine oil
Recommended lubricant:
Lithium-soap-based grease
(all-purpose grease)

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WARNING
Battery electrolyte is poisonous and danger-
ous, causing severe burns, etc. It contains sul-
furic acid. Avoid contact with skin, eyes or
clothing.
Antidote:
EXTERNAL: Flush with water.
INTERNAL: Drink large quantities of water or
milk. Follow with milk of magnesia, beaten
egg or vegetable oil. Call a physician immedi-
ately.
EYES: Flush with water for 15 minutes and get
prompt medical attention. Batteries produce
explosive gases. Keep sparks, flame, ciga-
rettes or other sources of ignition away. Venti-
late when charging or using in an enclosed
space. Always shield your eyes when working
near batteries. KEEP OUT OF REACH OF CHIL-DREN.

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Fuse replacement
1. The fuse case is located below the fender.
2. If the fuse is blown, turn off the main
switch and install a new fuse of the speci-
fied amperage. Then turn on the switches,
if the fuse immediately blows again, con-
sult a Yamaha dealer.
WARNING
Always use a fuse of the specified rating. Nev-
er use a material in place of the proper fuse. An
improper fuse can cause damage to the elec-trical system which could lead to a fire.CAUTION:To prevent accidental short-circuiting, turn off
the main switch when checking or replacing afuse.Specified fuse: 15 A
1. Main fuse 2. Spare fuse
1. Fusible principal 2. Fusible de rechange
1. Fusible principal 2. Fusible de repuesto

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5. Remove the bulb holder cover.
6. Turn the bulb holder counterclockwise
and remove the defective bulb.
WARNING
The headlight bulb is hot when it is on and im-
mediately after it is turned off. Wait for the
bulb to cool before touching or removing it.
You can be burned, or a fire could start if thebulb touches something flammable.
1. Bulb holder cover
1. Cache de la fixation d’ampoule
1. Cubierta del portabombillas1. Defective bulb
1. Ampoule défectueuse
1. Lámpara defectuosa