2008 Polaris ATV Sportsman 300 400 H.O. Service Manual, Page 56Get this manual
ENGINE (300) Oil Flow Diagram
Rocker Arm Rocker Shaft Valve Springs
ES300PFE012
Chain Room
Cylinder Head (RH Cam Journal) Connecting Rod Small End Piston SkirtRings Nozzle
Camshaft SprocketChain
Right Rear Cylinder Bolt Crankshaft
Counter Balance Gear Connecting Rod Big End
Main Bearing
MAG SIDE
Starting Clutch One Way Clutch Crankcase