How to tell if the air filter is dirty

Methods to determine if the air filter is dirty:

1. Look at the engine running status. If the air filter is dirty, the air intake will be insufficient and the fuel will not be burned fully, resulting in the engine not working properly. Stable, the engine sounds muffled when the accelerator pedal is continuously stepped on, the acceleration response is slow, and the exhaust gas is thick and black;

2. Look at the surface color of the air filter element. If the filter paper is still gray-black after cleaning the dust on the surface of the air filter element, Indicates that the filter paper can no longer be used and should be replaced immediately. The car air filter is installed in front of the carburetor or intake pipe to filter the air entering the engine. The engine inhales a large amount of air during operation. The air contains a lot of dust particles. If it is not filtered by the air filter, it will It will cause accelerated wear of the piston group and the cylinder. If larger particles enter between the piston and the cylinder, it will cause cylinder pulling.