Removing
1. Drain the coolant (see "Coolant - replacement").
2. Remove the air filter (see "Air filter - removal and installation").
3. Using a Phillips screwdriver, loosen the four hose clamps of the thermostat hoses.
4. Disconnect the hoses from the thermostat nozzles and remove the thermostat.
Recommendation: You can check the functionality of the thermostat by lowering it into a container of water heated to a temperature close to the boiling point. The main thermostat valve should open.
Installation
1. Install the thermostat in reverse order.
2. Fill the system with coolant (see "Coolant - replacement").
3. We make sure that there is no leakage of liquid at the junctions of the hoses with the thermostat. Tighten the hose clamps if necessary.