2008 Polaris ATV Predator 50, Sportsman Outlaw 90 Service Manual, Page 140Get this manual
CVT SYSTEM CVT SYSTEM
WARNING
All CVT maintenance or repairs should be performed only by certified Polaris Master Service Dealer (MSD) technician who has received the proper training and understands the procedures outlined in this manualBecause of the critical nature and precision balance incorporated into the CVT components, it is absolutely essential that no disassembly or repair be made without factory authorized special tools and service proceduresThe Polaris Variable Transmission (CVT) consists of three major assemblies: 1) The Drive Clutch; 2) The Driven Clutch; and 3) The Drive BeltThe internal components of the drive clutch and driven clutch control engagement (initial vehicle movement), clutch upshift and backshiftDuring the development of Polaris ATV, the CVT system is matched first to the engine power curve; then to average riding conditions and the vehicle's intended usageTherefore, modifications or variations of components at random are never recommendedProper clutch setup and careful inspection of existing components must be the primary objective when troubleshooting and tuning