wheel torque YAMAHA YFM660R 2003 Owners Manual

8-75
5. Screw in the adjusting bolt at the rear brake
caliper by hand until it feels tight, then screw it
out 1/8 turn. Tighten the locknut to the speci-
fied 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)
U5LP62.book Page 75 Wednesday, May 8, 2002 11:24 AM

8-83 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) 2. Adjusting bolt (× 2)
3. Alignment marks
1. Contre-écrou (× 2) 2. Boulon de réglage (× 2)
3. Repères d’alignement
1. Contratuerca (× 2) 2. Perno de ajuste (× 2)
3. Marcas de alineación
EBU01194
Drive chain slack adjustment
1. Loosen the rear wheel hub upper and lower
nuts.
2. Loosen the locknuts on each side of the swin-
garm. To tighten the drive chain, turn the ad-
justing bolts in direction
a. To loosen the
drive chain, turn the adjusting bolts in direc-
tion
b and push the wheels forward. Turn
each adjusting bolt exactly the same amount
to maintain correct axle alignment.NOTE:_ There are alignment marks on each side of the
swingarm and on the hub. Use them to check for
proper wheel axle alignment. _3. After adjusting, tighten the locknuts and the
wheel hub nuts to the specified torques.
Tightening torques:
Locknut:
16 Nm (1.6 m·kgf)
Upper wheel hub nut:
90 Nm (9.0 m·kgf)
Lower wheel hub nut:
90 Nm (9.0 m·kgf)
U5LP62.book Page 83 Wednesday, May 8, 2002 11:24 AM

8-99 1. Arrow mark
1. Flèche
1. Flecha
Front
Avant
Delantera1.“SIDE FACING OUTWARDS”
1. Inscription “SIDE FACING OUTWARDS”
1.“SIDE FACING OUTWARDS”Rear
Arrière
Trasera
EBU00782
Wheel installation
When installing a wheel, reverse the removal pro-
cedure.NOTE:

When installing a front wheel, the arrow mark
on the tire must point toward the rotating
direction of the wheel.


When installing a rear wheel, the wording on
the tire “SIDE FACING OUTWARDS” must be
facing outwards.
Tighten the wheel nuts to the specified torque.
Wheel nut torque:
Front: 45 Nm (4.5 m·kgf)
Rear: 45 Nm (4.5 m·kgf)
U5LP62.book Page 99 Wednesday, May 8, 2002 11:24 AM