Thanks for the help guys! I went over and spent the afternoon trying to tune there engines, I noticed alot of smoke from the pipe, and oil was dripping out the back of the pipe, so I started leaning the motor out. I leaned out the motor by a half of turn and now it runs fine, only it wont idle now?

I agree with you guys this pipe is a piece of junk, I dont know why everyone calls it the "HOT" pipe for the Revo.