Long story short, this is my son's, and now its at my house. I know no history on it, other than the old guy the bought it from ripped them off. The carb was in horrible shape, rebuilt that today, new plugs, new battery, I have it starting and running perfect. Once you put it in gear, it just wants to jump, a foot or two at at time. It will run in reverse OK up to half throttle, forward just aint happening. Does it have trans fluid in it? If so, I can't find it anywhere. I hope I explained that the way it sounded in my head.