2004 340 classic drive clutch wont engage until about 5000 RPM.... Motor will kill before sled moves. Started it up with no belt clutch would not engage until about 5k. Put the belt on with sled on jackstand it will engage about 5k and spin the track but with weight on track the motor will kill. Sled only has 850 miles on it clutch doesn't look dirty or like there is any unusual wear. Friend of mine wants to buy it. I would like to fix it before selling it. Also any idea of a fair price fixed or unfixed. Super clean sled never been rolled or crashed.