2002 Derbi atlantis bullet engine. 50cc air cooled. Has less than 400 miles on it. Took it off my scooter to repair as it wasn't running but i just don't have the time. Parts to fix are all brand new still in box from Racing planet usa. I will list the parts in this post. Just wasn't getting enough compression to start. Parts were a little over 300$. I'm asking 250$ just to get some money back for the parts as I know it will take somone some time to fix the engine. Please text or call with any questions.