Back to the original question. Is there the possibility of an exhaust leak with out any tell tale signs of exhaust residue (soot) or feel any sort of exhaust while it is running around the connections???
I have decel pop I have been unable to eliminate and was thinking I may have an exhaust leak, but I can find no signs of one and I don't want to take the exhaust apart and replace the gaskets for nothing.
Against my better judgment I tried the incense stick, no offense to the poster, but unless you can get a substantial amount of smoke and pressurize it, you are not going to see crap.
CB