what to adjust? exhaust valve clearance? i'm already using a leo vince pipe.
btw it also backfires a few secs after turnning the engine off.
I was reading a lot of different manuals today. I don't recall which one I read this from, sorry, but, it may apply to any model. Anyway, for what it's worth it said possible causes for:
Backfiring at deceleration
>Lean mixture in idle system
>Improper air cut off valve operation
Don't know if that has anything to do with TPS, though. (What's a TPS? LOL)