Yamaha YZ85 Owner's Manual page 67

Periodic maintenance and adjustment
To adjust the drive chain slack
Consult a Yamaha dealer before ad-
justing the drive chain slack.
1. Loosen the axle nut and the lock-
nut on each side of the swingarm.
2. To tighten the drive chain, turn the
drive chain slack adjusting bolt on
each side of the swingarm in di-
rection (a). To loosen the drive
chain, turn the adjusting bolt on
each side of the swingarm in di-
rection (b), and then push the rear
wheel forward.
TIP
Using the alignment marks on each
drive chain puller, make sure that both
drive chain pullers are in the same po-
sition for proper wheel alignment.
5
1. Axle nut
2. Drive chain puller
3. Locknut
4. Drive chain slack adjusting bolt
5. Alignment marks
3. Tighten both locknuts and the axle
nut to the specified torques.
Tightening torques:
Locknut:
14 N·m (1.4 kgf·m, 10 lb·ft)
Axle nut:
90 N·m (9.0 kgf·m, 65 lb·ft)
EAU41485
2 3
4
7-22
4. Make sure that the drive chain
pullers are in the same position,
the drive chain slack is correct,
and the drive
smoothly.
chain moves
7