On foggy and snowy days, scooters are easy to stall and accelerate smoothly. When returning to the throttle valve, the speed decreases instead of increasing, and the engine sound is stuffy and sudden.

High temperature in rainy, snowy or foggy days, such as air filter or carburetor being wet. You can check whether the air filter and air inlet are easy to get wet and whether they will leak into the carburetor along the throttle line or the tank cover. You can cut the waste oil pipe under the carburetor and the vent pipe above it into a long oblique mouth, and aim the nozzle in the direction of the dryer in the frame. On rainy days, the air capacity is humid, and the moisture in the air inhaled by the air filter is also large, which will affect the quality of the mixture.

In addition, in this weather, it is possible to make the electric door lock, igniter, high-voltage bag, spark plug cap and the wiring between them get wet with water, which will affect the ignition quality, and there will be cases where the throttle cannot be added, which is not easy to avoid. We can only try to prevent the car from getting wet for a long time, and pay attention to the exposed parts related to electrical components not to get wet.