ok, i guess i will keep fiddling with it. Are these engines nortoursly hard to tune. Everone else seems to have a really good time with the nitro sport except me. The hobby guy said that that was probably the best that i would be able get it running. so far it's slogan : Fast, easy , fun has been a complete lie, expecially the "fun", and "easy" part. Well im really sick of it, and im about ready to give up. its never run right.