Periodic maintenance and adjustment
7-21
7
EAU22762
Drive chain slack
The drive chain slack should be
checked before each ride and adjusted
if necessary.
EAU74251
To check the drive chain slack
1. Place the motorcycle on the side-
stand.
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 drive chain slack will
overload the engine as well as
other vital parts of the motorcy-
cle and can lead to chain slip-
page or breakage. To prevent
this from occurring, keep the
drive chain slack within the
specified limits.
[ECA10572]
EAU40116
To adjust the drive chain slack
Consult a Yamaha dealer before ad-
justing the drive chain slack.
1. Loosen the brake pedal free play
adjusting nut, axle nut, and lock-
nut at each end of the swingarm.
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 slack
Drive chain slack:
40.0–56.0 mm (1.57–2.20 in)
1. Brake pedal free play adjusting nut
2. Locknut
3. Drive chain slack adjusting nut
1. Axle nut
2. Locknut
3. Drive chain slack adjusting nut
UB5186E0.book Page 21 Wednesday, April 22, 2020 9:11 AM
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