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

ENGINE 5Install the top ring (chrome faced) with the "R" mark facing up and the end gap facing forward (toward the exhaust)Ring
all traces of old gasket material2Make sure the cylinder mounting bolt holes are clean and free of debris3Install new circlip
on one side of the piston with the end gap facing up or down, and tang outwardTang Outward 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 installation CAUTION Circlips become deformed during the removal processDo
not re-use old circlipsDo not compress the new clip more than necessary upon installation to prevent loss of radial tensionSevere
engine damage may result if circlips are re-used or deformed during installation 3Apply clean engine oil to the ring compressor
and install the compressor following manufacturer's instructionsCAUTION: Make sure the oil control ring upper rail tab is