I'm working on a polaris outlaw 50. I took the carb apart , ran it thru my commercial ultrasonic cleaner then I put it together with a rebuild kit. After I got back on it will idle but when giving throttle it backfires and bog down. I took it back apart clean it again still nothing so I checked the valves they was both at 0.02 and I check the ohms of the coil which read good. Compression is 150psi. Any ideas what else it could be ?