2009 Polaris Sportsman 850 XP EFI EPS Service Manual, Page 118Get this manual

2009 Polaris Sportsman 850 XP EFI EPS Service Manual, Page 118

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ENGINE ENGINE DISASSEMBLY AND INSPECTION
1 Rotate engine in direction of rotation until pin (A) is facing UPRotate cam another 60 to the 10:00 position to relieve valve spring pressure from cams