EXinMB
05-10-2006, 11:49 AM
I got a 2002 400ex that is completely stock as far as engine, carb, exhaust goes. Now this thing backfires after I go from like 5th gear tapped and go into a corner. High rpm to low it backfires. if i keep giving it a bit of gas it won't backfire but as soon as I let go completely, bang. Also it burns a lot of oil too.
so, jetting and needs new piston rings? i have searched the net and cant find answers:confused:
so, jetting and needs new piston rings? i have searched the net and cant find answers:confused: