Popping on deceleration
I've noticed my KLR makes a popping sort of noise on decelleration if I'm engine braking (none if I hold the clutch in). Basically mini-backfiring sort of noises, I'm guessing.
The bike has an FMF exhaust and I was told the carburetor was rejetted when that was installed.
A) is this bad for the bike?
B) does this mean the exhaust is bad?
I've searched a bit, but threads coming back are from pre -07 bikes, mine is an '09.
More puzzlingly, seemed to talk about the carburetor, which I wouldn't think would even be in the equation on deceleration. But on that note, again, my understanding is the carb was rejetted when the FMF exhaust was put on.
If this is the case, would using higher octane gas help? (I'm thinking lean = detonation, which higher octane gas prevents)
Obviously I'm totally unclear what this issue is (if it's even an issue), and how the carburetor would be involved, so ignore my mental wanderings if totally irrelevant or if I'm walking down the wrong train track.
Please advise, thanks!