gearhead437
Well-Known Member
- Local time
- 8:00 AM
- Joined
- Jan 11, 2020
- Messages
- 249
Dear OP-I had several problems with my drivetrain until I moved up to a heavier duty chain (410, I think) and installed a lever type spring operated tensioner. Be sure to buy one that has ball bearings in the idler wheel. I have put over 800 miles on my 49cc Grubbee GT-4B with NO chain adjustment needed-HTH-Gearhead