i was wondering if an any one knew how to clean a piston properly. im getting a new powercore 2 scilencer for my blaster, and figured while im at it, mays well take off the entire exhaust system and clean it, than go another step foward, andc take off the head of the engine and clean that and the piston. can i do that while the engiine is still in the bike, or do i have to take it out. and also how do u clean a piston properly? it probs have never been done before, so i was expecting it to b really oilly.