I have a 99 XC 700 i am so frustrated with, I get the thing running but it will not move.... The track is in decent shape but just spins when i hit the gas and sinks into the ground. Its like there isnt enough weight on the back of the sled to get it to push the front. Its sad when I have to snowblow a path for a snowmobile and even then it still wont move. I have a Polaris Sportsman 600 4x4 that is towing this snowmobile around. the track is even picked. Its on the slightest incline and will not move. Do I really need to town this thing around to a decline to get it to move... The track has probably 3/4-1inch of tread on it with picks.