Perio
d
ic maintenance an
d
a
d
justment
7-25
7
4. If the drive chain slack is incorrect,
adjust it as follows.
NOTICE:
Im-
proper
d
rive chain slack will
overloa
d
the en
g
ine as well as
other vital parts of the motorcy-
cle an
d
can lea
d
to chain slip-
pa
g
e or
b
reaka
g
e. If the
d
rive
chain slack is more than 50.0
mm (1.97 in), the chain can
d
am-
a
g
e the frame, swin
g
arm, an
d
other parts. To prevent this from
occurrin
g
, keep the
d
rive chain
slack within the specifie
d
limits.
[ECA17791]
EAU49314
To a
d
just the
d
rive chain slack
Consult a Yamaha dealer before ad-
justing the drive chain slack.
1. Take the motorcycle off the cen-
terstand, and then put the side-
stand down.
2. Loosen the axle nut and the lock-
nut on each side of the swingarm.
3. Place the motorcycle on the cen-
terstand.
4. 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
each side of the swingarm in di-
rection (b), and then push the rear
wheel forward.
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.
5. Take the motorcycle off the cen-
terstand, and then put the side-
stand down.
6. Tighten the axle nut, then the lock-
nuts to the specified torques.
7. Make sure that the drive chain
pullers are in the same position,
the drive chain slack is correct,
and the drive chain moves
smoothly.
1. Axle nut
2. Locknut
2
1
1. Drive chain slack adjusting bolt
2. Drive chain puller
3. Alignment mark
Ti
g
htenin
g
torques:
Axle nut:
150 N·m (15 kgf·m, 111 lb·ft)
Locknut:
16 N·m (1.6 kgf·m, 12 lb·ft)
(a)
(b)
1
2
3
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