2006 Arctic Cat ATVs factory service and repair manual, Page 389Get this manual

2006 Arctic Cat ATVs factory service and repair manual, Page 389

D.If the thermostat does not open, it must be replaced3Inspect all coolant hoses, connections, and clamps for deterioration,
the following procedure? inspect the thermostat for proper operationASuspend the thermostat in container filled with water
BHeat the water and monitor the temperature with thermometerCThe thermostat should start to open at 69.5-72.5OC (157-162OF)DIf
the thermostat does not open, it must be replaced3Inspect all coolant hoses, connections7 and clamps for deterioration7cracks,
and wearW NOTE: All coolant hoses and clamps should be replaced every four years or 4000 miles INSTALLING REMOVING Place
the thermostat and seal into the thermostat housing; then finger-tighten the thermostat housing to the mounting bracket with
the two cap screwsInstall the remaining two cap screws; then tighten the four cap screws to specificationsFill the cooling
system with the recommended amount of antifreezeCheck for leakageInstall the center splash shield; then install the fenders
and front rack Remove the front rack and fenders; then remove the center splash shieldDrain the cooling system down approximately