If you're repairing or rebuilding the clutch in your 2-stroke bike engine, it's important to keep one of these Round Column Bolts in hand. This 2-Stroke Motorized Bicycle Round Column Bolt is located in the crankcase of the motor and holds the small bevel gear on most 48cc and 66/80cc 2-stroke motorized bike engine kits, which in turn helps engage and disengage your motor.
The installation will require some experience and special tools like a power drill and a machine press, but it is vital that you have this bolt installed in your engine. Without this Round Column Bolt your 2-stroke motorized build will halt in its tracks, so make sure your parts box and ready for your next rebuild.

Part #3 on the Crankcase Diagram

Package includes

Round Column Bolt Part Number (See Parts Manual): 2-3