Perio
d
ic maintenance an
d
a
d
justment
7-23
7
EAU22762
Drive chain slack
The drive chain slack should be
checked before each ride and adjusted
if necessary.
EAU73530
To check the
d
rive chain slack
1. Place the motorcycle on the cen-
terstand.
2. Shift the transmission into the
neutral position.
3. Measure the drive chain slack as
shown.
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]
EAU63122
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.
1. Drive chain slack
Drive chain slack:
35.0–45.0 mm (1.38–1.77 in)
1
1. Axle nut
2. Locknut
2
1
UB5C10E0.book Page 23 Tuesday, April 3, 2018 10:03 AM