2003 Arctic Cat ATVs from 250cc to 500cc Service Manual, Page 392Get this manual

2003 Arctic Cat ATVs from 250cc to 500cc Service Manual, Page 392

4Install the front bumper and grille assembly (see Section 8)5Install the front rack (see Section 8)6Pill the cooling system
water pump housing and to the radiator; then remove the lower hose BHeat the water and monitor the temperature with thermometerCThe
thermostat should start to 48.5-51.5C (1l9.3-124P) DIf the thermostat does not open, it must be replaced3Inspect all coolant
hoses, connections, and clamps for deterioration, cracks, and wear NOTE: All coolant hoses and clamps should be replaced
every four years or 4000 milesINSTALLING 3Remove the clamps securing the upper coolant hose to the thermostat housing and
to the radiator; then remove the upper hose 1Place the thermostat and O-ring into the thermostat housing; then secure the
thermostat housing to the cylinder head with the two cap screws2Install the crossover coolant hose onto the water pump and