2001 Polaris Sportsman 400-500 DUSE and H.O. Service Manual, Page 136Get this manual
CYLINDER INSTALLATION, CONT7Apply light film of oil to the threads and flange surface of the cylinder mounting bolts8Install all four bolts finger tightRotate the engine and position the piston at BDCNOTE: If cam chain is installed, hold it up while rotating the engine to avoid damage to the chain, drive sprocket teeth, or tensioner blade9Tighten the cylinder bolts in three steps in criss cross pattern and torque to specifications10Install the two 6mm bolts
Cylinder Bolt Torque: 10mm46 ftlbs(6.348 kg-m) 6mmftlbs(.828 kg-m)
CYLINDER HEAD INSTALLATION