How to adjust the idle speed of the classic Bluebird 4th generation?

Adjust the throttle screw of carburetor to make the engine speed slightly higher than the normal idle speed.

1. First, adjust the throttle screw of the carburetor to make the engine speed slightly higher than the normal idle speed, and then turn the idle engine oil concentration adjustment screw left and right to find out the maximum engine speed at this throttle position.

2. Adjust the throttle screw slightly counterclockwise to reduce the engine speed. Then adjust the idle oil concentration adjustment screw to find a higher engine speed. This is repeated several times according to the mode of throttle down+idle oil, until the maximum speed of the throttle valve is equal to the standard idle speed of the whole vehicle when it is adjusted to a certain position.

3. Generally, the idle speed is adjusted to 1200 rpm, that is, listening to the exhaust sound is ten times that ordinary people can barely hear every second. Sometimes, after the best adjustment, the concentration of CO is still high. At this time, Paris adjustment method or lean oil adjustment method can be adopted appropriately.

The idle speed of a car refers to a working condition. When the engine is idling, it is called idling, that is, the gear of the car is neutral. The engine speed at idle speed is called idle speed. Idle speed can be adjusted by adjusting the size of air door. Idle speed means that the engine is not working.