Honda C8R600F4 Service Manual page 131

Remove the thermostat.
INSPECTION
• Wear insulated gloves and adequate eye protec-
tion.
• Keep flammable materials away from the
electric heating element.
Visually inspect the thermostat for damage.
Replace the thermostat if the valve stays open at
room temperature.
Heat the water with an electric heating element to
operating temperature for 5 minutes.
Suspend the thermostat in heated water to check
its operation.
NOTE:
Do not let the thermometer or thermostat touch the
pan, or you will get false readings.
THERMOSTAT BEGINS TO OPEN:
73-77 °C (163-171 °F)
VALVE LIFT:
8 mm (0.3 in) minimum at 90 °C (194 °F)
Replace the thermostat if the valve responds at
temperature other than those specified.
INSTALLATION
Install a new seal rubber over the thermostat tlange.
Apply coolant to the seal rubber and install the
thermostat into the housing with its hole facing
rearward.
CAUTION:
Do not allow the seal rubber to turn inside out. It
will cause the coolant to leak.
COOLING SYSTEM
THERMOSTAT
6-7