Re: Tuning your expansion chamber and Carburetor
The best way is to check the colour of your spark plug. The general rule is that you may have to jet richer. The expansion chamber is likely less restrictive than the stock muffler. When you replace the stock muffler with an xchamber you are creating a leaner condition in most cases.
Not every banana is the same. One is an expansion chamber with no baffles and one has baffles to act a bit like a muffler.
Also, in simple terms, the shorter the header pipe the higher the rpm power band. And, of course, the longer the header pipe the lower the rpm power band.
Just a chimp with a gun and an idea we should be free to ride our machines without gettin hassled by the Man.
Last edited by Chaz; 10-26-2016 at 01:32 PM.