Posted by CALVEN on January 24, 2000 at 18:24:16:
I just put a new muffler on my bike some weeks ago and since then the power in the upper gears seems lessened - in fact more like slipping. Could this be from the muff not being installed right? The clamp around the slip-on to the old pipe is not as tight as it should be, would this cause this slipping feeling?? I did NOT notice this under the old stock muffler.