I need help guys. I got this 04 660 and it dont run right. I had it idling good before. But then I was screwing around with the 2 fuel air screws on the bottoms of the carbs. I set them at 2 and 1/2 turns out. It idles low now so im going to put then back at the 3 and 1/2 turns out tomorrow. I got 145 and 150 jets in it right now. Cant remember the other jet sizes off hand. It'll idle but as soon as I touch the throttle it bogs and dies. If I feather it i'll finally get a backfire out of it and a flame out of the pipe about 3 inches long. It revs up easier with the choke on. So thats why im thinking its in the carb. The reverse sensor green with white strip wire has been cut and grounded to the battery and the parking brake green with yellow wire has been cut and taped off by its self. Both were cut a few inches from the ecu to rule out a broke or bare wire. Neither made a difference. It has a hfm slip on which doesnt fit up right. Stock air box with lid. When I redid the clutch (thanks to the brother) I put a 102mm cylinder with new piston and rings. I replaced the 2 exhaust valves while I was in there because it was having problems before the rebuild where the brother would go about a mile and the wheeler start backfiring and loose power untill it slowed down for a while. Then go about another mile and samething. Thought maybe one of the valves wasnt sealing. I had the carb rebuilt and that never made a difference. I tried cleaning the jets and thats hasnt helped either.