I have a '09 Ruff-N-Tuff Hunter 4x4 48 volt cart that suddenly lost speed. I have run this thing hard daily and had no problems untill now. I started with a full charge, ran around the ranch for about 9 miles, stopped for an hour or so for lunch, got back on the buggy, things started fine and then suddenly lost speed while moving and now can go no more than 10mph. This unit has always gone 22-25 mph with no problems, now when you reach 10 mph it tops out. All batteries read a full charge, all accessories work fine including the shift on the fly 4wd. It will still run 40 miles on a charge, just no faster than 10 mph. Is there any way the governor could have suddenly reset itself from 25 mph to 10mph? or is there some kind of reset on the controller?