2001 Polaris Sportsman 400-500 DUSE and H.O. Service Manual, Page 132Get this manual

2001 Polaris Sportsman 400-500 DUSE and H.O. Service Manual, Page 132

ONE WAY VALVE INSTALLATION
Install the one way valve plunger, spring, and plug using new sealing washer
One Way Valve Plug Torque: 16 ftlbs(2.2 kg-m)

CAM CHAIN DRIVE SPROCKET INSTALLATION
1Install the Woodruff key, drive sprocket, and slotted nutTighten the nut to the specified torqueB A