2003 YAMAHA WARRIOR 350 torque

4-33 A. Spring length
A. Longueur du ressort
A. Longitud del muelle
3. The length of the spring (installed) changes
1 mm per turn of the adjusting ring.CAUTION:_ Never attempt to turn the adjusting ring be-
yond the maximum or minimum settings. _4. Tighten the locknut to the specified torque.Measurement
A:
Installed length:
Standard:
228.5 mm
Minimum (Hard):
220.5 mm
Maximum (Soft):
235.5 mm
Tightening torque:
51 Nm (5.1 m·kgf)
U5NF61.book Page 33 Wednesday, June 13, 2001 5:18 PM

4-35 1. Damping force adjusting screw
a. To increase b. To decrease
1. Vis de réglage de la force d’amortissement
a. Pour diminuer. b. Pour augmenter.
1. Tornillo de ajuste de la fuerza de amortiguación
a. Para disminuya b. Para aumenta
CAUTION:_ Always tighten the locknut against the spring
adjusting ring, and then torque it to specifica-
tions. _Adjust damping force as follows:
Turn the adjusting screw in direction
a to increase
damping force and in direction
b to decrease
damping force.CAUTION:_ Never attempt to turn an adjusting mechanism
beyond the maximum or minimum settings. _
Standard: 15 clicks out*
Minimum (Soft): 20 clicks out*
Maximum (Hard): Fully turned-in position
*From the fully turned-in position
U5NF61.book Page 35 Wednesday, June 13, 2001 5:18 PM

5-17
EBU00151
Throttle lever
Check to see that the throttle lever operates cor-
rectly. It must open smoothly and spring back to
idle position when released. Repair as necessary
for proper operation.
EBU00152
Fittings and Fasteners
Always check the tightness of chassis fittings and
fasteners before a ride. Take the machine to a
Yamaha dealer or refer to the Service Manual for
correct tightening torque.
EBU00803*
Lights
Check the headlights and tail/brake light to make
sure they are in working condition. Repair as nec-
essary for proper operation.
EBU00912
Switches
Check the operation of the light switch, engine
stop switch and any other switches. Repair as nec-
essary for proper operation.
U5NF61.book Page 17 Wednesday, June 13, 2001 5:18 PM

8-3 1. Owner’s manual
2. Low-pressure tire gauge
3. Owner’s tool kit
1. Manuel du propriétaire
2. Manomètre basse pression pour pneus
3. Trousse à outils
1. Manual del usuario
2. Manómetro de baja presión
3. Equipo de herramientas
EBU00258
Owner’s manual and tool kit
You are recommended to put this owner’s manual
and low-pressure tire gauge in the vinyl bag and
always carry them along with the owner’s tool kit
under the seat. The service information included in
this manual is intended to provide you, the owner,
with the necessary information for completing your
own preventive maintenance and minor repairs.
The tools provided in the Owner’s tool kit are suffi-
cient for this purpose, except that a torque wrench
is also necessary to properly tighten nuts and
bolts.NOTE:If you do not have a torque wrench available dur-
ing a service operation requiring one, take your
machine to a Yamaha dealer to check the torque
settings and adjust them as necessary.
U5NF61.book Page 3 Wednesday, June 13, 2001 5:18 PM

8-19 1. Oil filter cover 2. Bolt (× 3)
3. Oil filter 4. O-ring
1. Couvercle du filtre à huile 2. Boulon (× 3)
3. Filtre à huile 4. Joint torique
1. Tapa del filtro de aceite 2. Perno (× 3)
3. Filtro de aceite 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
damaged.
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
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. _11. Fill the engine with oil, and then install the
dipstick. Tightening torques:
Drain bolt (engine):
32 Nm (3.2 m·kgf)
Filter cover bolt:
10 Nm (1.0 m·kgf)
U5NF61.book Page 19 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

8-27 a. Spark plug gap
a.Écartement des électrodes
a. Separación entre electrodos de la bujía
Before installing the spark plug, measure the elec-
trode gap with a feeler gauge and adjust to speci-
fication.
When installing the spark plug, always clean the
gasket surface and use a new gasket. Wipe off
any grime from the threads and tighten to the
specified torque.Spark plug gap:
0.6 ~ 0.7 mm
Tightening torque:
Spark plug:
17.5 Nm (1.75 m·kgf)
U5NF61.book Page 27 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