Re: Muffler broke while riding
I assume you are talking about a China Doll 2 stroke. As long as the studs going into the engine are fine, you should be able to put a new muffler exhaust pipe on. If the tube coming out of the engine is fine and only the muffler itself broke, I can't imagine that would hurt the engine.
It almost sounds like the engine is 4 stroking. Look it up on youtube so you can hear an engine 4 stroking and let us know if that is what it is doing.