the round perfarated thingy inside the muffler broke and was rattleing around in side so i took it out and its alittle louder but doesnt seem to afect the way it runs is it ok to leave it like that or should i buy a new one
I ran a 2 stroke for around a year with just the shell. Completely open at the end like a horn (but was louder then one, snork) I thought that the curve in the pipe before the muffler gave it enough back pressure, but am no expert.