2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 104Get this manual

2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 104

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ENGINE 5 Install the top ring (chrome faced) with the "R" mark facing up and the end gap facing forward (toward the exhaust)Ring Profile 4 Apply clean engine oil to the piston rings, ring lands, pisto