Yamaha T155 2021 Owner's Manual page 65

4. If the drive chain slack is incorrect,
adjust it as follows. NOTICE: Im-
proper drive chain slack will
overload the engine as well as
other vital parts of the motorcy-
cle and can lead to chain slip-
page or breakage. To prevent
this from occurring, keep the
drive chain slack within the
specified limits.
[ECA10572]
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 and the brake caliper
bracket bolt.
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.
Periodic maintenance and adjustment
TIP
Using the alignment marks on each
drive chain puller, make sure that both
chain pullers are in the same position
for proper wheel alignment.
EAU66612
1 2
1 2
1. Locknut
2. Drive chain slack adjusting nut
3. Axle nut
7-24
1. Brake caliper bracket
2. Brake caliper bracket bolt
3
(b)
(a)
ZAUN0630
1. Washer
2. Alignment marks
3. Drive chain slack adjusting nut
3. Tighten the axle nut, the brake cal-
3
1
2
iper bracket bolt, and then tighten
the locknuts to the specified
torques.
1 2
7