The idle speed adjustment steps of Kato excavator engine are as follows:
The adjustment of the idle speed of the Kato excavator engine should be carried out after the adjustment of ignition timing and other related adjustments and the engine at normal temperature. It is mainly to adjust the carburetor with the electric tachometer and the vacuum meter. The detailed adjustment steps are as follows:
1 in the condition of the air filter, the idling value is adjusted by the carburetor throttle valve limit screw to make it 20 / part higher than the specified speed value (this is the adjustment of the throttle opening degree, the specified speed is given by the manufacturing plant, generally 550~750 rpm, and the vacuum degree is about 400 mm Hg).
2 adjust the idle speed adjusting screw to increase the engine speed slightly (this is to adjust the air-fuel ratio, and the vacuum gauge of the vacuum gauge is improved after the adjustment, so that the pointer is stabilized).
3 adjust the throttle limit screw and reduce the rotation speed to the speed of 1.
4 repeat (2), (3), (3), until the stable operation is obtained (20 RPM higher than normal idle speed), and then adjust the idle adjustment screw to make the mixture dilute, and make the idle speed up to the specified value (up to the standard 20 / sub down).
5 at this point, the idle speed adjustment is completed. But for the sake of prudence, check it again. In order to observe the acceleration, the throttle valve base opening and the stability of the engine running at a certain degree of opening, the throttle valve should be slowly opened up to the high speed, or sharp open and close. In this process, if the realization is not tempered, the fork can operate steadily, can it be considered Qualified.
