u/Eussou_

Hey everyone,

I have a Delkevic full exhaust system on my KLR 650 and I've been getting decel popping when letting off the throttle.

I wanted to check if the header was leaking at the cylinder head. I didn't feel any air coming out when the engine was running, but visually it looks like the flange is not sitting flat against the head — there seems to be a gap.

Could this be the cause of my decel popping ? Anyone had the same issue ?