I have searched have not found anything about my problem! I just rebuilt my shee to .030 over and now she won't idle. It has stock bottom end. Wiseco Pistons. Stock carbs with 280 main jets and 25 needle jets. Air screw 1.5 turns out. Needle on the fourth clip. Carbs are synced and floats are in correct position! This was my setup for stock at 6500ft. not sure if I need bigger needle or main jets? I tried to raise my float's so it would idle and that don't work! when I give it gas it's real throaty, as soon as I let off throttle it dies! Has new Plugs ,Oil , Gas "40-1" Ratio , and New Clutch.. Bike was running great when I tore it down just figured after 2.5 years it was time.. When I tore it down I found my pistons moved in cylinders so that's why I bored them over. Nothing else was wrong with it.