Hello everyone, My name is Peter, I just finished installing an 80cc engine on my mountain bike. Considering there were no instructions on installation the fact that I got it to work with very little motor knowledge is pretty great. My only problem now is tuning the carborator. I'll put a thread up in the maintenance thread. I've had it out for a couple long rides now and all in all it's the best thing since sliced bread. I enjoy it more than my old dirtbike since I don't have to worry about getting a 250Lbs machine stuck on me in the woods. It works great off road.