So I let a friend ride my backup 1997 Mountain Max 700, tripple pipes, 151 updated track, runs great. BUT......he rode it with the parking brake on to the point you would have thought it was on fire with all of the burned rubber smell and smoke pouring out of it. Now I went to replace the belt because it is bad and when it accelerated after the burn you almost need to go down hill for it to finally get into powerband then it runs fine but is DEAD SLOW with no power off the line. I pulled the belt and the bottom 3/4 of an inch of the primary clutch is grooved completely flat with a bump (lip) to get over to get the belt to ride up on the sheaves. Unless I am wrong do I need new sheaves or can this be fixed or a new clutch or????