3. Measure the drive chain slack as
shown.
4. If the drive chain slack is inco-
rrect, adjust it as follows.
TIP
When checking the drive chain slack,
the chain tensioner should not be tou-
ching the drive chain.
EAU22922
To adjust the drive chain slack
Consult a Yamaha dealer before
adjusting the drive chain slack.
1. Remove the cotter pin from the
axle nut, and then loosen the axle
nut.
2. Loosen the chain puller locknut
at each end of the swingarm.
3. To tighten the drive chain, turn
the drive chain slack adjusting
nut at each end of the swingarm
in direction (a). To loosen the dri-
ve chain, turn the adjusting nut at
each end of the swingarm in
direction (b), and then push the
rear wheel forward.
NOTICE:
Improper drive chain slack will
overload 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 wit-
hin the specified limits.
[ECA10571]
TIP
Using the alignment marks on each
side of the swingarm, make sure that
both adjusting nuts are in the same
position for proper wheel alignment.
1. Drive chain slack adjusting bolt
2. Drive chain puller locknut
3. Alignment marks
4. Tighten the locknuts, and then
tighten the axle nut to the speci-
fied torque.
5. Insert a new cotter pin into the
axle nut, and then bend its ends
as shown.
WARNING! Always
use a new cotter pin for the
axle nut.
[EWA10701]
1. Axle nut cotter pin
2. Axle nut
3. Drive chain puller locknut
4. Drive chain slack adjusting bolt
5. Alignment marks
Tightening torque:
Axle nut:
90 Nm (9.0 m•kgf, 65.1 ft•lbf)
Drive chain slack:
20.0–25.0 mm (0.79–0.98 in)
PERIODIC MAINTENANCE AND ADJUSTMENT
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