- Damaged chain rollers.
- Loose chain link pins.
- Dry, rusty, warped or seized links.
- Exceeding wear.
- Missing O-rings.
- Exceedingly worn or damaged sprocket teeth.
Warning!
- If chain rollers are damaged, chain link pins are loose, renew the drive chain and the front and rear sprockets as a set.
- The chain should be lubricated frequently, especially after finding any dry or rusty components.
- Lubricate and repair any warped or seized chain links.
Check the chain tensioner roller (1) for wear.
Lastly, check the slider that protects the swinging arm for wear.