My 500 Sportsman is primarily used as a snow plow but I do occasionally take it off road. I have about 3600 miles on it. While snow plowing recently, I had trouble with the clutch releasing the belt. I bought a kit which included a spring and weights for the primary and a spring for the secondary. I removed both clutches and installed the parts. I also cleaned both clutches and then installed a new Polaris belt. The clutch still seems like it is not releasing. When I put the transmission in forward high or low the bike begins to move without any throttle, when I brake it dies. Same thing in reverse. I can not take it out of forward or reverse when I am moving to put it in neutral. Does anyone have a clue as to what is wrong? I do not want to mess up the transmission.