2005 Polaris Sportsman 400/500 Service Manual, Page 66Get this manual
RECOMMENDED COOLANT Use only high quality antifreezecoolant mixed with distilled water in 5050 or 6040 ratio, depending on freeze protection required in your areaCAUTION: Using tap water in the cooling system will lead to buildup of deposits which may restrict coolant flow and reduce heat dissipation, resulting in possible engine damagePolaris Premium 6040 AntifreezeCoolant is recommended for use in all cooling systems, and comes pre-mixed and ready to use
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ACCESSIBLE COMPONENTS
The following components can be serviced or removed with the engine installed in the frame: Flywheel AlternatorStator Starter MotorStarter Drive Cylinder Head Cylinder PistonRings Camshaft Rocker Arms Cam Chain and Sprockets Water PumpWater Pump Mechanical Seal The following components require engine removal for service: Oil pumpOil Pump Drive Gear Counterbalance Shaft or Bearing(s) Connecting Rod Crankshaft