Examination
1. The check must be carried out when the engine is cold.
29.3 The choke is located at the top of the carburetor
2. Remove the air filter. The air damper is located on top of the carburetor (29.3).
3. Squeeze out an accelerator pedal to the end. The damper must close completely. When starting the engine, the throttle should open slightly.
4. Start the engine and let it warm up. As the engine warms up, the choke should gradually open and become vertical when the engine is warm.
Cleaning
5. Clean the throttle shaft with a carburetor cleaning spray. Also clean the fast idle cam and linkage.