Mine doing the same thing as yours, but when i take the seat off it runs great until i try to turn. Aft a few seconds after the turn it goes back to running great again (that is with the seat off). I just cant figure why when the seat is on, it runs like crap :dunno:. I have never had this problem before. I have no idea what the little red light on the dash is for, but it has been flashing on mine ever since i have had it (which has been about 5yrs now) and it has never affected the performance of the ski. I've made a post on here about the issues I've had and have had no response yet. If you have any luck with anything you do/or have done....please post it here or email it to me. My email is [email protected].