hey guys! ok so i have a pair of 2000 gtx millennium edition 951 cc skis. My friends and I were riding yesterday and I noticed very soon that my ski was not accelerating near as fast as it normally does. It takes like a mile or so to get to full speed. The ski just sounds and feels like its bogging down when I mash the throttle. And to make matters worse, if you let the throttle go completly, the engine will shut off. It has no idle whatsoever. I have to keep a steady push on the throttle just to keep the machine alive... I'm thinking the idle screw has been tampered but I don't know where it is to fix the problem... any help would be greatly appreciated