People give these engines away around here, was offered 4 of them by friends. I could not find any other engine to fit this 'child's' model or whatever it is. So I thought why not go back to the Simplex roots and use a 2cycle. I'm not happy with my latest setup and next I will rotate the engine up 45 deg., will have to fab a new intake to make card level. Just not much room for jackshafts or anything else on this small model. Will add more pics as I go. Oh yeah added a pic of my min-chopper I built.