Perio
d
ic maintenance an
d
a
d
justment
7-25
7
EAU22762
Drive chain slack
The drive chain slack should be
checked before each ride and adjusted
if necessary.
EAU60046
To check the
d
rive chain slack
1. Place the motorcycle on the side-
stand.
TIP
When checking and adjusting the drive
chain slack, there should be no weight
on the motorcycle.
2. Shift the transmission into the
neutral position.
3. Push down on the drive chain un-
der the end of the drive chain
guard.
4. Measure distance A between the
drive chain guard and the center
of the chain as shown.
5. If distance A is incorrect, adjust it
as follows.
NOTICE:
Improper
d
rive chain slack will overloa
d
the en
g
ine as well as other vital
parts of the motorcycle an
d
can
lea
d
to chain slippa
g
e or
b
reak-
a
g
e. If
d
istance A is more than
55.0 mm (2.16 in), the chain can
d
ama
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.
[ECA23070]
EAU59921
To a
d
just the
d
rive 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.
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.
1. Drive chain guide
2. Distance A
Distance A:
43.0–48.0 mm (1.69–1.89 in)
1
2
1. Locknut
2. Axle nut
2
1
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