backfiring problem


Well-Known Member
My 4 stroke 49.5cc manual trans backfires when I release the throttle. I'll shift normally through to 4th gear, then when I need to slow down, I release or back off the throttle and WHACK! a nice big fat pop. No other backfiring except when I back off the throttle. The only way to avoid it seems to be if I engage the clutch immediately as I'm backing off the throttle. I've played with the mixture a bit, but that doesn't seem to help. Any advice???
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Nope, everything is stock. I have 3700 miles on it. I'm not much of a mechanic, but I can find my way around the bike. It's a baby-softail, looks like Harley.