2001 Polaris Sportsman 400-500 DUSE and H.O. Service Manual, Page 135Get this manual

2001 Polaris Sportsman 400-500 DUSE and H.O. Service Manual, Page 135

CYLINDER INSTALLATION
1Place the dowel pins in the crankcase and install new cylinder base gasket2Position the piston support block PN 2870390 (A) beneath the piston skirt to support the piston during cylinder installation3Apply clean engine oil to the ring compressor (Snap On PN RCL30) and install the compressor following manufacturers instructionsCAUTION: Make sure the oil control ring upper rail tab is positioned properly in the notch of the pistonVerify all ring end gaps are correctly locatedA

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