Periodic maintenance and adjustment
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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]
EAU74390
To adjust the drive chain slack
Consult a Yamaha dealer before ad-
justing the drive chain slack.
1. Loosen the axle nut.
2. To tighten the drive chain, turn the
drive chain adjusting plate on each
side of the swingarm in direction
(a). To loosen the drive chain, turn
the adjusting plate on each side of
the swingarm in direction (b), and
then push the rear wheel forward.
Make sure that both adjusting plates
are in the same position for proper
wheel alignment.
3. Tighten the axle nut to the speci-
fied torque.
4. Make sure that the adjusting plates
are in the same position, the drive
chain slack is correct, and the
drive chain moves smoothly.
1. Drive chain slack
Drive chain slack:
40.0–50.0 mm (1.57–1.97 in)
1. Stopper
2. Drive chain adjusting plate
3. Axle nut
Tightening torque:
Axle nut:
85 N·m (8.5 kgf·m, 63 lb·ft)
B1U-9-13_1.book 26 ページ ２０２２年４月７日 木曜日 午後３時１４分
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