Checking the fuel level in the float chamber

1. One of the reasons for the violation of the stability of the engine speed may be the incorrect setting of the fuel level in the carburetor float chamber.

2. Remove the air cleaner (see Section Air cleaner assembly service).

3. Remove the screws (with cross slots) fastening the carburetor cover to its body.



4. Make sure that the fuel level in the float chamber is 8.5÷10.5 mm below the mating surface of the carburetor body.



5. If the level differs from the specified value, turn the carburetor cap so that it assumes the position shown in the illustration and measure the distance between the bottom of the float and the plane of the cap (nominal value is 28÷30 mm).

Note. During measurement, the ball of the needle valve must not be pressed by the shoulder of the float.

6. The possibility of adjusting the position of the float is not provided, and any changes in it can only be associated with a violation of the tightness of the assembly.

7. When installing the carburetor cover on the body, do not forget to replace the sealing gasket.