Hey Dirt, TGISunday. It was a good idea, well a idea anyhow, my neighbor gave me a engine just like yours but I haven't tried to run it. The grandson and I started a mb project last spring but it got put on hold because of all the honey do jobs. We are making a adjustable frame with a motor in mind. For the front half we copied the OC Chopper but for the back everything including the seat post can be moved forward or back and the bottom tube can be dropped down. The seat, front neck, down tube, top tube ,pedals and angle of the front neck all stay in the same location but everything connecting them can be moved around. We ruined the first frame by welding it with stainless steel (lots of big holes). Some lawn mowers have a angle gear box that might work, I have a Treadmill electric motor that runs ok on 30 volts but its really long, wish I could mount it longways on the bike with a angle gear box. Don't give up on putting something on a bike, its something that you will never forget. The first m bike that I ever rode was one that I made myself over 50 years ago.