AS the title says, im stuck with a 49cc china girl and i dont have much cash. Should i get a new head, intake, and pipe now or wait a long while to get a 66cc and break it in first?
A good exhaust pipe is going to cost almost as much, or sometimes more, than an entire new engine kit, unless you have the capacity to weld sheet metal yourself, in which case you can do it pretty cheap. Also why do you want a new intake? I've never had any trouble with the stock one.