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3-10 COOLING SYSTEM
Thermostat
Removal
.Remove the fairing and the side cover assembly.
.Drain coolant (cylinder head, cylinder).
.Remove the following.
Carburetor (see Fuel System chapter)
Hose (Thermostat Housing)
Mounting Bolts
Water Temperature Sensor Connector
.Remove the thermostat housir,g on the cylinder.
.Remove the thermostat from the housing.
1 .Thermostat
2. Thermometer
*If the measurement is out of the specified range, replace
the thermostat.
Thermostat Valve Opening Temperature
80 -84°C (176 -183°F)
A. Housing
B. Mounting Bolt
I nsta!lation
.Install the thermostat noting the following.
.Install the thermostat so that the stay faces outside.
.Be sure to install the O-ring on the housing.
.Add coolant (see Coolant Filling).
Inspection
.Remove the thermostat and inspect the thermostat
valve at room temperature.
*If the valve is open, replace the valve with a new one.
.To check valve opening temperature, suspend the
thermostat in a container of water and raise the
temperature of the water.