update on this....after installing the honda gx engine and having the ratio 7-1 the bike would barely move...yesterday we added a jackshaft with 10 into 30 to that...so I guess 21-1? its hard to keep the front wheel on the ground now....tons of umph!
its got a jackshaft plate on a honda gx engine.....off that another 10t driving the 70 at the axle.......having probs with these uploads again for pics