The consequence of not replacing the air filter for a long time is to cause dust and other particles to enter the engine, causing wear of the cylinders and parts in the engine.
1. If the engine cannot operate normally, the car air filter may be blocked without replacing the car air filter. Replacing a clean air filter can improve the efficiency of the engine by more than 10%. In summer, please check, clean and replace the air filter element to ensure the normal operation of the engine;
2. The engine needs to suck in a lot of air during the working process. If the air is not filtered, the dust suspended in the air is sucked into the cylinder, which will accelerate the wear of the piston group and the cylinder;
3. Larger particles enter between the piston and the cylinder, which will cause a serious "cylinder pulling" phenomenon, which is especially serious in a dry and sandy working environment. The air filter is installed in front of the carburetor or the intake pipe to filter out dust and sand particles in the air, so as to ensure sufficient and clean air into the cylinder.

Air filter replacement tutorial:
1. Use the prepared tool to open the cover on the air filter box. After opening the cover, we can see the air filter box;
2. Open the air filter box cover to see the old air filter;
3. Then you can take out the filter element to check the situation, if it is too dirty, it needs to be replaced entirely;
4. If the air filter element is not too dirty, you don't need to replace it, just blow the dust out with an air gun. The filter element is a consumable item and loses its effectiveness when it is too dirty, so it needs to be replaced when it is too dirty.