lock YAMAHA WARRIOR 350 2003 User Guide

7-53
WARNING
_ Use proper gear and maintain steady speed
when climbing a hill. If you lose all forward
speed:

Keep weight uphill.


Apply the brakes.


Lock the parking brake, after you are
stopped.
If you begin rolling backwards:


Keep weight uphill.


Never apply the rear brake while rolling
backwards. Apply the front brake. When
fully stopped, apply the rear brake as well,
and then lock the parking brake.
Dismount on uphill side or to a side if pointed
straight uphill. Turn the ATV around and re-
mount, following the procedure described in
the Owner’s Manual.
_
U5NF61.book Page 53 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

8-37 1. Locknut 2. Adjusting bolt a. 3 ~ 5 mm
1. Contre-écrou 2. Boulon de réglage
1. Contratuerca 2. Perno de ajuste
EBU00307
Throttle lever adjustmentNOTE:Adjust the engine idling speed before adjusting the
throttle lever free play.1. Loosen the locknut.
2. Turn the adjusting bolt until the throttle lever
free play is 3 ~ 5 mm.
3. Tighten the locknut.
EBU00303
Valve clearance adjustment
The correct valve clearance changes with use, re-
sulting in improper fuel/air supply or engine noise.
To prevent this, the valve clearance must be ad-
justed regularly. This adjustment however, should
be left to a professional Yamaha service techni-
cian.
U5NF61.book Page 37 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

8-51 1. Locknut 2. Adjusting bolt
1. Contre-écrou 2. Boulon de réglage
1. Contratuerca 2. Perno de ajuste
1. Locknut 2. Adjusting bolt
1. Contre-écrou 2. Boulon de réglage
1. Contratuerca 2. Perno de ajuste
EBU00953
Parking brake adjustment
Parking brake adjustment may be required if the
parking brake does not hold properly.
1. Fully loosen the parking brake cable adjust-
ing bolt locknut and the adjusting bolt on the
clutch lever.
2. Loosen the adjusting bolt locknut and the ad-
justing bolt on the rear brake caliper.
3. Turn the adjusting bolt on the clutch lever so
that cable length
a is 46 ~ 50 mm.NOTE:If the cable cannot be adjusted to specification,
consult a Yamaha dealer. _
U5NF61.book Page 51 Wednesday, June 13, 2001 5:18 PM

8-53 a. Cable length (46 ~ 50 mm)
a. Longueur de câble (46 à 50 mm)
a. Longitud del cable (46 ~ 50 mm)
4. Tighten the adjusting bolt locknut on the
clutch lever.
5. Screw in the adjusting bolt on the brake cali-
per by hand until it feels tight, then screw it
out 1/8 turn. Tighten the adjusting bolt locknut
to the specified torque.CAUTION:_ When tightening the locknut, hold the adjust-
ing bolt with a wrench so that the adjusting
bolt does not turn together with the locknut. _
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 ac-
cident. 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, perform
the adjustment again. _
Tightening torque:
Locknut:
16 Nm (1.6 m·kgf)
U5NF61.book Page 53 Wednesday, June 13, 2001 5:18 PM

8-57 1. Locknut 2. Adjusting bolt A. 5 ~ 10 mm
1. Contre-écrou 2. Boulon de réglage
1. Contratuerca 2. Perno de ajuste
1. Locknut 2. Adjusting nut
1. Contre-écrou 2.Écrou de réglage
1. Contratuerca 2. Tuerca de ajuste
EBU00741
Clutch lever free play adjustment
The clutch lever free play should be adjusted to 5 ~
10 mm.
1. Loosen the locknut at the clutch lever.
2. Turn the adjusting bolt at the clutch lever in
direction
a to increase the free play or in di-
rection
b to decrease the free play.
3. Tighten the locknut at the clutch lever.NOTE:If the specified free play cannot be obtained, pro-
ceed with the following steps.4. Loosen the locknut at the clutch lever.
5. Turn the adjusting bolt at the clutch lever in
direction
a to loosen the cable.
6. Loosen the locknut at the crankcase side.
7. Turn the adjusting nut at the crankcase in di-
rection
a to increase the free play or in direc-
tion
b to decrease the free play.
8. Tighten the locknut at the crankcase and the
clutch lever.
U5NF61.book Page 57 Wednesday, June 13, 2001 5:18 PM

8-61 1. Upper wheel hub nut 2. Lower wheel hub nut
1.Écrou supérieur de moyeu de roue
2.Écrou inférieur de moyeu de roue
1. Tuerca superior del cubo de la rueda
2. Tuerca inferior del cubo de la rueda
1. Locknut 2. Adjusting bolt 3. Alignment marks
1. Contre-écrou 2. Boulon de réglage
3. Repères d’alignement
1. Contratuerca 2. Perno de ajuste
3. Marcas de alineación
EBU00917
Drive chain slack adjustment
1. Loosen the rear wheel hub upper and lower
nuts.
2. Loosen the adjusting bolt locknuts on each
side of the swingarm. To tighten the drive
chain, turn the adjusting bolts in direction
a.
To loosen the drive chain, turn the adjusting
bolts in direction
b and push the wheels for-
ward. Turn each adjusting bolt exactly the
same amount to maintain correct axle align-
ment. There are alignment marks on each
side of the swingarm and on the hub. Use
them to check for proper wheel axle align-
ment.
3. After adjusting, tighten the adjusting bolt lock-
nuts and the wheel hub nuts to the specified
torques.
Tightening torque:
Locknut:
16 Nm (1,6 m·kgf)
Upper wheel hub nut:
120 Nm (12.0 m·kgf)
Lower wheel hub nut:
60 Nm (6.0 m·kgf)
U5NF61.book Page 61 Wednesday, June 13, 2001 5:18 PM

8-89 1. Headlight bulb holder cover
1. Cache de la fixation d’ampoule
1. Cubierta del portabombillas del faro
1. Headlight bulb holder
1. Fixation d’ampoule
1. Portabombillas del faro
5. Remove the headlight bulb holder cover.
6. Turn the headlight bulb holder counterclock-
wise 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 the bulb
touches something flammable. _
U5NF61.book Page 89 Wednesday, June 13, 2001 5:18 PM

8-93 1. Vertical adjusting screw (× 2)
1. Vis de réglage vertical (× 2)
1. Tornillo de ajuste vertical (× 2)
EBU00409
Headlight beam adjustmentCAUTION:
It is advisable to have a Yamaha dealer make
this adjustment.1. Vertical adjustment:
To raise the beam, turn the adjusting screw
clockwise.
To lower the beam, turn the screw counter-
clockwise.
U5NF61.book Page 93 Wednesday, June 13, 2001 5:18 PM