1. Check all swinging arm bearings for damage, pitting, and cracks. Replace as necessary.
2. Check the swinging arm for damage. Replace as necessary.
3. Check all bearing seals for damage, splits etc. Replace as necessary.
4. Check the chain for wear, damage, etc. Replace as necessary.
5. Check both sprockets for wear, damage, etc. Replace as necessary.
6. Check the upper drive chain rubbing strip for wear and damage. Replace as necessary.
7. Check the lower drive chain rubbing strip for wear and damage. Replace as necessary.