hello i just got this sled. i took it out yesterday sometimes it runs great then other times you have to feather the throttle. i was wondering if this machine had the tors on it? its the f/c 485 with 2 butterfly carbs but one works most of the stuff on the second carb and only one carb has wires running to it .was wondering if that was the tors? cause it sure acts like it. thanks to anyone that can help jim