OK. Just got a Rustler in the mail I got off E-Bay. I picked it up for 95 dollars because the seller listed it as "Engine won`t run." So I put everything back to the factory settings, slap the EZ Start from my old sport on it (Came with pull start) And guess what? Fired right up. Runs better than the two .15s I have. Lesson? Whenever you think it "must be broken" go back to the basics. I now have a nitro Rustler(running perfectly) with the radio and some hop ups from the original owner for 95 dollars.