Post by ilovenxstage on Jun 15, 2013 21:20:58 GMT -5
I swapped my all steel exhaust for a GY6 stock aluminum exhaust, and it runs good, despite a small leak, but when I let off the throttle, it backfires really loud. I had a friend driving behind me and he said visible flame was shooting out my exhaust. I set the A/F screw properly, and I don't think it's running lean, but I'll do a plug chop tomorrow just to be sure. Is there any other cause besides running too lean that can cause backfiring on deceleration, and am I in danger of turning my piston into a melted glob?
