125 how to adjust and tighten the carburetor of motorcycle? Rich or Greek?

125 Tighten the adjusting screw of the mixer of motorcycle carburetor, and the mixer will be diluted. The mixing adjustment is to compensate the proportion of gasoline in the fuel through the bypass channel. After tightening the screw, the bypass channel is closed and the compensation fuel is completely cut off. Naturally, the mixture was diluted. The specific operation steps of correctly adjusting the mixing screw are as follows:

1. Press the electric start key to start the vehicle.

2. Turn the idle screw clockwise to keep the vehicle idle.

3. Take out a word screwdriver.

4. Turn the mixture screw at the bottom of the carburetor.

5. After the engine idle speed rises, adjust the idle screw to reduce the idle speed to 1000 rpm, and complete the adjustment of the mixing ratio.