Order of execution
1. Loosen the clamp and remove the hose from the thermostatic nozzle. Check damper position. The warm air inlet must be closed.
2. Remove filter from carburetor (cm. subsection 6.1.2).
3. Connect the hose to the carburetor, putting it on the nozzle instead of the hose.
4. Start the engine and let it idle. The damper should turn and allow warm air to enter.
5. Disconnect the hose from the carburetor. The damper should turn and block the access of warm air. If it doesn't, replace the thermostat.
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