Hello, I too have found one of these and put on a new engine, and fixed it up. A nice go cart, but can't find anything about it. I did find the manual online, just type Monster TyRod IV in google and look at the first hit. I tried calling the company that made it but there was no answer. I don't know what happened to everything about this go cart. If you don't want them I wouldn't mind taking one off your hands. :) Anyways, what kind of parts and stuff are you looking for?