Does any body know how to determine how much a clutch weight weighs? I have a 85 600 and the clutch has not been working properly. There is one letter and 1 number on each weight they are M 1. Have no clue what this means. Also how do you take a clutch apart. And What is P-85 meen I have seen this I think it is the type of clutch for polaris. I also have a 97 XC 440 does it have P-85 as well as the 85 600?