26" mtb 50 cc engine i worked the head port and polished the head i took the small exhaust port out past the standard 80cc and it runs great i also polished the inside of the head and sanded the 2mm lip down to raise the copression i also matched the exhaust and inlet gaskets im running the new red speed carb and at the moment a 44 tooth sprocket with the clamp setup because the 6 bolt sprocket woulndt line up with the frame and also the front mount and bolts have been tig welded and u clamped on...
My next built will be a worked 66cc with a shift ket a new carby and im going to work it further i wil post pics
My next built will be a worked 66cc with a shift ket a new carby and im going to work it further i wil post pics