2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 64Get this manual

2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 64

ENGINE Cooling System FLOW Radiator Radiator and Coolant Flow Thermostat Water Pump Cylinder Head Cylinder WARNING Never
kpa)The system must retain 10 lbs of pressure for five minutes or longerIf pressure loss is evident within five minutes,
check radiator, all cooling system hoses and clamps, or water pump sealRadiator Cap Pressure Test 1Remove radiator cap and
test using cap tester (commercially available)2The radiator cap relief pressure is 13 lbs (89.6 kpa)RECOMMENDED COOLANT Use
only high quality antifreezecoolant mixed with distilled water in 5050 or 6040 ratio, depending on freeze protection required