2007-2008 Yamaha YFM700 Grizzly Factory Service Manual, Page 267Get this manual
THERMOSTAT EBS00132
CHECKING THE THERMOSTAT 1Check: thermostat Does not open at 5054 (122129.2 F) ReplaceMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
aSuspend the thermostat in container filled with waterbSlowly heat the watercPlace thermometer in the waterdWhile stirring the water, observe the thermostat and thermometer's indicated temperatureLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
1 Thermometer Water Thermostat Container Fully closed Fully open