jimk80

Carbs have been apart (a lot) tried 240, 280, and 340 main jet. I will try the plug wires since it runs about the same on all those jet sizes.

i have a 2000 banshee, cool head, fmf pipes/silencers, all else stock. It runs great from idle to half throttle but when i hold her open and go through the gears it sounds like the left side quits and it's only running on the right cylinder. motor has 150+ compression on both sides and was rebuilt last year. i'm using stock carbs with 340 main jets. i'm looking for any ideas on what would cause it to do this. thanks in advance!