Oww i never thought of doing a jackshaft to a 3/4" shaft with a clutch. Great idea. Thats a good idea if u want to run a victa as well. Then u dont need a 60 dollar shaft adaptor, just weld a sprocket onto the shaft and run it to a jackshaft. Thanks a lot for that, now i no i can make something outta my 167cc victa i got sitting in my shed without spending much. Victa minibike coming up XD.