Yamaha R15 YZF155 2018 Owner's Manual page 70

Periodic maintenance and adjustment
1
1. Axle nut
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
7
each side of the swingarm in di-
rection (b), and then push the rear
wheel forward. NOTICE: Improp-
er drive chain slack will over-
load the engine as well as other
vital parts of the motorcycle and
can lead to chain slippage or
breakage. To prevent this from
occurring, keep the drive chain
slack within the specified limits.
[ECA10572]
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.
2
1
(b)
(a)
3
1. Locknut
2. Drive chain slack adjusting bolt
3. Alignment marks
3. Tighten the axle nut, then the lock-
nuts to their specified torques.
Tightening torques:
Axle nut:
59 N·m (5.9 kgf·m, 44 lb·ft)
Locknut:
16 N·m (1.6 kgf·m, 12 lb·ft)
7-24
4. Make sure that the drive chain
pullers are in the same position,
the drive chain slack is correct,
and the drive chain
smoothly.
moves