Join Date: Apr 2002
Location: Dandridge (Near Knoxville), TN, USA
Loosen the nuts holding the exhaust header into the head so that it can be dropped slightly, then try to rotate all four of the flanges on the ends of the pipes. My bet is that you have one or more broken loose from the pipe.
I had the same thing once, found the front two broken. Removed the exhaust system and re-welded it, noise gone. This has been a somewhat common failure. Easily re-welded though, just find a good welding shop. Mine were re-welded on the outside of the flange where the pipe enters it as well as re-doing the original weld inside.
I don't want to achieve immortality through my work...I want to achieve it through not dying.
EX: '01 Black LT, BAT BYKE (Totaled at 110,000 miles)
IBA SS, BB, BBG, 10/10ths.
No bike now, but maybe in the future.