Moped Army

mostly it kills reliablity if you don't rejet. it does hurt reliability some if you kit and do it perfectly. but weren't the 2 bikes that went to south America kitted? so it hurts reliablity in theory but not really enuf to notice. just keep a closer watch on sounds coming out of the tranny ,oil, and junk like that. piped and carbed if you rejet and it blows up it was about to blow up before you put the pipe on.