2002 Yamaha YFM660 Grizzly factory service and repair manual, Page 246Get this manual

2002 Yamaha YFM660 Grizzly factory service and repair manual, Page 246

THERMOSTAT

CHECKING THE THERMOSTAT 1.Check: Thermostat Does not open at 5054 (122158 F) Replace Checking steps: Suspend the thermostat in container filled with waterSlowly heat the waterPlace thermometer in the waterWhile stirring the water, observe the thermostat and thermometer's indicated temperature
1 Thermostat Thermometer Water Container Fully closed Fully open

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