Periodic Maintenance
Drive Chain Slack Adjustment
In this manual: Periodic Maintenance
~1min read
- Remove the cotter pin [A], and loosen the rear axle nut [B].
- Loosen the both chain adjuster locknuts [C].
If the chain is too loose, turn out the left and right chain adjusters [D] evenly.
If the chain is too tight, turn in the left and right chain adjusters evenly, and kick the wheel forward.
- Turn both chain adjusters evenly until the drive chain has the correct amount of slack. To keep the chain and wheel properly aligned, the notch [E] on the left wheel alignment indicator [F] should align with the same swingarm mark or position [G] that the right indicator notch aligns with.

WARNING
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 the both chain adjuster locknuts securely.
- Tighten the rear axle nut.
Torque - Rear Axle Nut: 127 NВ·m (13.0 kgfВ·m, 94 ftВ·lb)
- Turn the wheel, measure the chain slack again at the tightest position, and readjust if necessary.
- Insert a new cotter pin [A].
NOTE
- 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 [B].
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.

Test yourself
A quick Kawasaki Ninja ZX-10R quiz: every answer comes with an explanation and a link to the manual page.
Was this page helpful?