kellyk

you might try gpracingsuspension.com . he did a great job on mine and very reasonable.

we tried new plugs in winchester bay, same thing. we did find one of the plug caps was a little loose got another turn on it , but we havent tried it yet.

the machine seems to idle fine and run fine just under hard pull or load it has a backfire sound or miss out of the exhaust.

yes we have ran that before we even dropped it to a 320 , 330 , still same thing. I ran 340s in mine all week with no problems.

my brothers banshee has a popping sound or miss when ever it is under a hard pull. jetting seems fine. was wondering if it may be a coil or something. my brother says he cant hardly hear it or feel it when riding it. we just came back from winchester bay this week every time he would climb a hill it would sound as if it were backfiring out of the exhaust. it has toomey pipes, ported cylinders stock carbs, k&n pod filters. he was running 340 mains. thanks