2010 Polaris Sportsman 850 Service Manual, Page 187Get this manual
CLUTCHING (PVT) PVT Assembly (TOURING Models)
1Inspect the inner PVT coverReplace if cracked or damagedThe mating surface must be clean to ensure adhesion of new silicone sealantBe sure to "flame treat" the inner PVT cover prior to applying silicone to ensure good adhesionPass the flame of propane torch back and forth quickly over the area where the silicone is to be applied (2-3 inches from the flame tip is recommended)Do not hold the torch too close to the surfaceKeep the torch moving to prevent damageApply RTV silicone sealant to the outside edge of the inner PVT cover to ensure water tight fit between the cover and the transmission8Install the driven clutch, cup washer, lock washer, and retaining boltTorque retaining bolt to specification
Driven Clutch Retaining Bolt: 13 ftlbs(18 Nm) 9Clean end of taper on crankshaft and the taper bore inside drive clutch using tapered reamer3