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.
EAU2277G
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. 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]
EAU53052
To a
d
just the
d
rive chain slack
Consult a Yamaha dealer before ad-
justing the drive chain slack.
1. Loosen the brake pedal free play
adjusting nut.
2. Loosen the axle nut.
3. Loosen the drive chain puller lock-
nut at each end of the swingarm.
4. 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.
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.
1. Drive chain slack
Drive chain slack:
20.0–30.0 mm (0.79–1.18 in)
1. Brake pedal free play adjusting nut
U46B1BE0.book Page 25 Monday, July 8, 2019 11:51 AM
