Thermostat Removal
- Drain the coolant (See Coolant Change in the Periodic Maintenance chapter).
- Remove the left front frame cover (See Front Frame Cover Removal in the Frame chapter).
- Disconnect the horn leads [A].
Remove:
- Horn Bolt [B]
- Horn [C]
![](https://motoinstruction.ru/img/kawasaki/23/128426.jpg)
Remove:
- Radiator Hose [A]
- Thermostat Housing Bolts [B]
- Thermostat Housing [C]
![](https://motoinstruction.ru/img/kawasaki/23/128427.jpg)
- Pull the thermostat [A] out of the cylinder head.
![](https://motoinstruction.ru/img/kawasaki/23/128428.jpg)
Thermostat Installation
- Install the thermostat [A] in the cylinder head so that the air bleeder hole [B] is on top.
![](https://motoinstruction.ru/img/kawasaki/23/128429.jpg)
- Install a new O-ring [A] into the housing and apply grease it.
Tighten:
Torque - Thermostat Housing Bolts: 9.8 N·m (1.0 kgf·m, 87 in·lb)
![](https://motoinstruction.ru/img/kawasaki/23/128430.jpg)
- Align the line [A] of the thermostat housing and the red mark [B] of the radiator hose [C].
- Install the radiator hose clamp [D] as shown.
Tighten:
Torque - Radiator Hose Clamp Screws: 2.0 N·m (0.20 kgf·m, 18 in·lb)
- Fill the radiator with coolant (See Coolant Change in the Periodic Maintenance chapter).
![](https://motoinstruction.ru/img/kawasaki/23/128431.jpg)
Thermostat Inspection
- Remove the thermostat (See Thermostat Removal), and inspect the thermostat valve [A] at room temperature.
If the valve is open, replace the thermostat with a new one.
![](https://motoinstruction.ru/img/kawasaki/23/128432.jpg)
- 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
80.5-83.5°C (177-182°F)
![](https://motoinstruction.ru/img/kawasaki/23/128433.jpg)