Coolant : Drain about 200 mL
Fuel Tank (see Fuel System chapter)
Four Water Hoses [A]
Bracket Bolts [B]
Water Temperature Sensor Connector [C]
Remove the thermostat housing [D] along with the
Remove the screws [A], take off the cap [B], and take out
Install the thermostat [A] in the housing so that the air
bleeder hole [B] is on top.
Install a new O-ring into the housing.
Fill the radiator with coolant (see Coolant Change in the
Periodic Maintenance chapter).
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 ther-
mostat [A] and an accurate thermometer [B] in a container
of water with the heat-sensitive portions [C] in almost the
The thermostat must be completely submerged and the
thermostat and thermometer must not touch the con-
tainer sides or bottom.
Gradually raise the temperature of the water while stirring
the water gently for even temperature.
If the measurement is out of the range, replace the ther-
Thermostat Valve Opening Temperature
COOLING SYSTEM 4-17