How to adjust the idle speed of EFI scooter

The specific adjustment method is as follows:

Step one, prepare. When the throttle knob is completely loosened, there should be a certain free clearance, an air filter should be installed, and the performance of other components should be confirmed to be good, and the oil products meet the standards. Then, start the engine to warm up and completely open the choke valve;

The second step is pre-adjustment. Adjust the throttle screw to ensure that the engine can run at a certain speed without stalling when the throttle knob is completely loosened;

The third step, a high. Adjust the air conditioning screw to increase the engine speed as much as possible;

The fourth step, one low. Adjust the throttle screw to reduce the engine speed as much as possible (125 displacement1400r/m; 100 displacement 1500 rpm). The adjustment parameters of mixed gas are not mechanical, even if it is the same batch and model, there will be differences. The screw of this car's mixture is screwed in to make it thinner, and drawn out to make it thicker. As long as the adjusted engine runs smoothly, starts smoothly, accelerates smoothly, and the fuel consumption is normal, the color of the spark plug can also help to judge whether the concentration of the mixture is appropriate. Under normal circumstances, the color of the spark plug should be brown. It is abnormal to be too black or too white, but the most common one is too black.