Where are the two screws on the carburetor of motorcycle to adjust idle speed?

There are two screws on the carburetor of motorcycle, one for idling and the other for mixing gas. The screw for adjusting the idle speed is located at the cable damper on the carburetor side, and the position is obvious. The screw for adjusting the mixture is located at the longest position on the left side of the carburetor at the top of the cable.

Idle oil holes and idle air holes are set in the idle oil circuit to control the oil quantity and foam the fuel. Idle speed can be adjusted by idle speed screw.

Because the mixture required for idling is small and thick, it is sensitive to the running condition of the engine. In order to realize the idle state with stability and minimum speed, it is necessary to adjust the fuel quantity control and the minimum throttle opening.

The existing carburetor idling device has two adjusting screws to adjust the fuel quantity and throttle opening respectively. At the same time, in order to prevent the engine from running when the ignition switch is turned off, an idle solenoid valve is installed in the idle oil circuit of the carburetor to ensure that the engine can be quickly turned off.

Extended data:

Maintenance of motorcycle carburetor;

1. Carburetor is a key component in the engine, and any slight change may affect the performance of the whole vehicle. Therefore, in the process of disassembling the carburetor, appropriate tools should be used and the force should be moderate to prevent the parts from deforming. The removed parts should be placed neatly to prevent omission or incorrect assembly.

The carburetor should be cleaned in a clean place. Clean the outer surface of the carburetor first, and the inside can be cleaned with special cleaning agent for carburetor or industrial gasoline.

In addition to impurities, attention should also be paid to cleaning the gasoline glue on the surface of parts. Blow the cleaned parts clean with compressed air, and do not wipe them with cloth or paper that will produce burrs to prevent re-pollution.

3. In the process of cleaning the carburetor, if it is found that there are many deposits in the float chamber of the carburetor, it is often caused by the failure of the gasoline filter. At this time, the gasoline filter should be checked. If it is confirmed to be invalid, it needs to be cleaned or replaced with a new gasoline filter.

4. If you don't use the motorcycle for a long time, you need to empty the fuel in the carburetor float chamber to prevent the gasoline colloid from depositing and condensing, which will cause carburetor failure.

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