everything else seemed to work but now the left carb has started to backfire. the engine is running fine except for that. Now what do i do? is there a way to stop the left carb from doing this, please help i am a new bike owner, but i do know about mechanics i work on gas turbine engines for the air force but i cant figure out a motorcycle engine :dunno: any one who can help i will send them a beer :cheers: so can anyone help me please