2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 70Get this manual

2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 70

ENGINE Oil Flow The following chart describes the flow of oil through the engineBeginning at the oil tank, the oil flows
to the sumpThe other oil path from the filter leads through delivery pipe to the crankcase main oil gallery, which leads
to the stator plate oil passageHere it passes through the slotted friction bearing (located in the stator plate) into the
crankshaftAn oil seal on the stator plate prevents oil from entering the statorflywheel areaOil travels through the crankshaft
to the crank pin, lubricating the connecting rod large end bearing directlyOil also passes through an oil jet (drilled orifice)
in the end of the crank pin to the PTO end main bearings and counterbalancer gearsResidual oil from the lubrication of the
crankshaft and connecting rod indirectly lubricates the cylinder wall, piston, rings, connecting rod small end bearing, piston
pin, oilwater pump drive gears, cam chain and drive sprocket, and Magneto end crankshaft main bearingThe one-way valve is