For scooters, the accelerator is turned off as soon as it is started in the morning. It takes ten or twenty seconds to add the valve, and it takes some time to start the valve.

After the scooter is started, the fuel door is closed. You can check whether the mixture ratio is lean, whether the electronic control damper is not working well, whether it can not thicken the mixture well, or whether the carburetor itself is aging badly, whether the valve clearance is too small or whether the valve is not closed tightly, carbon deposits are worn and ablated, and the cylinder pressure is low, which may cause this situation. When the cold motorcycle starts, the temperature is low, the mixture is atomized and the combustion is insufficient. It's easy not to add the throttle at this time. Just ride a hot motorcycle for a while. This situation is normal, especially when the temperature is low. But if the situation seriously affects the use, check those aspects mentioned above. The above are the common reasons for this scooter phenomenon.