Yamaha MTM690 2022 Owner's Manual page 72

Periodic maintenance and adjustment
To adjust the drive chain slack
Consult a Yamaha dealer before ad-
justing the drive chain slack.
1. Loosen the locknut at each end of
the swingarm, and then loosen the
axle nut.
1 1
7
1. Axle nut
2. Locknut
2. To tighten the drive chain, turn the
drive chain slack adjusting nut at
each end of the swingarm in direc-
tion (a). To loosen the drive chain,
turn the adjusting nut at each end
of the swingarm in direction (b),
and then push the rear wheel for-
ward.
EAU59921
2 2
1. Drive chain slack adjusting nut
TIP
Using the alignment marks on each
side of the swingarm, make sure that
both drive chain slack adjusting plates
are in the same position for proper
wheel alignment.
1 1
1. Alignment marks
2. Drive chain slack adjusting plate
3. Tighten the axle nut, and then
(a) (a) (a)
1 1
(b) (b) (b)
4. Make sure that the drive chain
2 2
7-24
tighten the locknuts to the speci-
fied torques.
Tightening torques:
Axle nut:
105 N·m (10.5 kgf·m, 77 lb·ft)
Locknut:
16 N·m (1.6 kgf·m, 12 lb·ft)
slack adjusting plates are in the
same position, the drive chain
slack is correct, and the drive
chain moves smoothly.