Yamaha YZF-R3 2020 Owner's Manual page 71

Periodic maintenance and adjustment
To adjust the drive chain slack
Consult a Yamaha dealer before ad-
justing the drive chain slack.
1. Remove the drive chain puller cap,
and then loosen the axle nut and
the locknut on each side of the
swingarm.
1. Locknut
2. Drive chain puller cap
2. To tighten the drive chain, turn the
drive chain slack adjusting nut on
each side of the swingarm in di-
rection (a). To loosen the drive
chain, turn the adjusting nut on
each side of the swingarm in di-
rection (b), and then push the rear
wheel forward.
1. Drive chain slack adjusting nut
EAU62983
TIP
Using the alignment marks on each
side of the swingarm, make sure that
both drive chain pullers are in the same
position for proper wheel alignment.
1
2
1. Alignment marks
2. Drive chain puller
1
(a)
(b)
7-25
3. Tighten the axle nut, then the lock-
nuts to their specified torques.
Tightening torques:
Axle nut:
57 N·m (5.7 kgf·m, 42 lb·ft)
Locknut:
16 N·m (1.6 kgf·m, 12 lb·ft)
4. Make sure that the drive chain
pullers are in the same position,
the drive chain slack is correct,
and the drive
smoothly.
5. Install the drive chain puller caps.
2
1
7
chain moves