I found a way to tighten up my Bi Turbo muffler on my '98 Tomos Targa LX. I tightened up were the muffler meets the engine as tight as possible and it is much more quite. I can still feel a little bit, not as much as I had before, coming out between the engine and muffler. My friend, supposedly, said that his does the same thing. So this might be normal? Please post if yours runs with a little leak. I'm interested in how other people have theirs set up. Thanks.
I'm gonna try installing the 27 tooth sprocket tonight if I get some extra time.