The camshaft is attached to the clutch arm and is installed into the sprocket cover on a 2 stroke engine. It rotates and pushes in the bucking bar. Wear will occur over time where the flat spot on the camshaft touches the bucking bar.

* Orders received Monday - Friday by 3:3:00 PMST are eligible for
Same Day Shipping! Except for USPS which ships the next business day.

Our gasoline operated products are NOT compliant with Environmental Protection Agency ( E.P.A. ) or California Air Resources Board (C.A.R.B) for the use on/off Public roads. Upon purchase, the buyer agrees to use products for racing (closed-course competition) only and NOT for on/off public roads.

If you need help with installation or troubleshooting, kindly use our Builder Locator to find builders near you. Builders are experts with motorized bicycles.