Thermostat removal
Drain:
- Coolant (about 200 mL)
Remove:
- Seat (see Seat removal in the Frame chapter)
- Fuel Tank (see Fuel tank removal in the Fuel System (DFI) chapter)
- Reserve Tank Hose [A]
- Radiator Hose Clamp [B] (Loosen)
- Water Temperature Connector [C]
- Bolt [D]
Remove:
- Thermostat Housing Cover Bolts [A]
- Thermostat Housing Cover
- Thermostat
Thermostat installation
Install a new O-ring [A] into the housing cover.
Install:
- Thermostat
- Thermostat Housing Cover
Tighten:
- Torque-Thermostat Housing Cover Bolts: 4.9 №m (0.50 kgf·m, 43 in·lb)
Fill the radiator with coolant (see Coolant change in the Periodic Maintenance chapter).
Thermostat inspection
Remove the thermostat, and inspect the thermostat valve [A] at room temperature.
★ If the valve is open, replace the thermostat with a new one.
To check valve opening temperature, suspend the thermostat [A] in a container of water and raise the temperature of the water.
The thermostat must be completely submerged and must not touch the container sides or bottom. Suspend an accurate thermometer [B] in the water so that the heat sensitive portions [C] are located in almost the same depth. It must not touch the container, either.
★ If the measurement is out of the specified range, replace the thermostat with a new one.
- Thermostat Valve Opening Temperature 58-62°C (136-144°F)