Periodic Maintenance Procedures
Drive Chain Slack Adjustment
Loosen the left and right chain adjuster locknuts [A].
Remove the cotter pin [B] and loosen the rear axle nut [C].
If the chain is too tight, back out the left and right chain
adjusting bolts [D] evenly, and push the wheel forward
until the chain is too loose.
If the chain is too loose, turn both chain adjusting bolts
evenly until the drive chain has the correct amount of
slack. To keep the chain and wheel properly aligned, the
notch on the left chain adjuster should align with the same
swingarm mark [E] as the right chain adjuster notch [F].
Check the wheel alignment (see Wheel Alignment Inspec-
tion in the Final Drive chapter).
Misalignment of the wheel will result in abnormal
wear and may result in an unsafe riding condition.
Be sure the wheel is properly aligned.
Tighten both chain adjuster locknuts securely.
Torque - Rear Axle Nut: 108 N·m (11.0 kgf·m, 79.7 ft·lb)
Rotate the wheel, measure the chain slack again at the
tightest position, and readjust if necessary.
Insert a new cotter pin [A].
When inserting the cotter pin, if the slots in the nut do
not align with the cotter pin hole in the axle, tighten the
nut clockwise [B] up to next alignment.
It should be within 30 degrees.
Loosen once and tighten again when the slot goes past
the nearest hole.
Bend the cotter pin [A] over the nut.
A loose axle nut can lead to an accident resulting in
serious injury or death. Tighten the axle nut to the
proper torque and install a new cotter pin.
Check the rear brake effectiveness.
In wet and muddy conditions, mud sticks to the chain
and sprockets resulting in an overly tight chain, and the
chain may break. To prevent this, adjust the chain to 58
68 mm (2.3
2.7 in.) of slack whenever necessary.
PERIODIC MAINTENANCE 2-35