Hello so the other day i was riding at my cabin up in the moutons (about 7000 feet above sea level). As i was riding my atv it all of a sudden had NO power, i was pinning the throttle and topping out at 5mph. I thought it was the carb flooding at first but after removing the carb and draining the gas it would still run like crap. I've heard that the cams on the bikes usually go bad but i suppose that is not the problem here. Please help