Re: OK very overwhelming, quick question ....
I am currently mounting a Sachs 50 cc engine on a Huffey frame. The engine includes an Auto drive ( no clutch required), and has an output sprocket the same as the China engines. This engine has been around for a long time and is a proven reliable 2 cycle. The hardest part will be making the mounts and making sure everything lines up. I paid 100.00 for the engine used and in like new.