Remove the air filter from the carburetor.
Slowly press the gas pedal once, choke (top choke in carburetor) must be fully open.
Start the engine.
Give it a little gas so that the limit screw does not press against the stepped washer.
Depending on the outside temperature, the air damper should open after about 5 minutes. Otherwise, check the integrity of the bimetallic spring or check the power supply of the engine start automation system.
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