my sled started stuttering, and running shitty, sometimes even backfiring and stalling. will start right back up and allow you to cruise up to 30-35 mph , try anything more than that and it usually starts sputtering etc again. we have checked the grounds, the tors, all good. discovered a couple of wires for throttle side hand warmer broken, put tape on them, didnt help. thought it might be fuel related because i live in a remote place with questionably good gas. changed both fuel filters still no improvement. what else should i try, we are still riding for a few more weeks yet?is there a way to check ecu ?