What are the symptoms of Magotan's dirty throttle?

What is the phenomenon of dirty magotan throttle? Magotan's dirty throttle has the following manifestations: 1. When the car refuels, the throttle will feel heavy and the speed will be slow. When idling, the speed will rise slowly and the response will be insensitive. When the throttle is released, the speed will slow down immediately. 2. An unclean throttle will affect the intake accuracy and smoothness of the engine. The most obvious performance is jitter or vibration when idling, which may even lead to flameout, and refueling may not be smooth. 3. The dirty throttle valve is mainly due to factors such as the bad environment in the car, the bad state of the air intake filter, the dust in the surrounding environment, the poor quality of the engine oil and the excessive evaporation of the engine oil, which will all lead to the steam and impurities of the engine oil in the crankcase, and finally lead to the dirty throttle valve. After the flameout, the throttle cannot be sealed. If not cleaned, the accumulated dust will damage the chip.