The air filter replacement tutorial is as follows:
1. Tool materials: a Phillips screwdriver, a 5.5MM socket, and a 6MM Allen wrench. Method steps Abao purchases an air filter element and an air conditioner filter element. The price varies, it is recommended to choose by yourself;
2. First replace the air filter element. Open the engine cover;
3. On the right side of the engine, find the black stuff, remove these screws, the air filter element is exposed;
4. Remove the old dirty air filter element, which is a little dusty underneath, and wipe it clean with a towel. Replace with a new air filter element, compare the old and new air filter elements;
5. Screw in the screws and you're done.

The role of air filter:
1. The air filter is a device mainly responsible for removing particulate impurities in the air; When piston mechanical internal combustion engines and reciprocating compressors are working, if the inhaled air contains dust and other impurities, it will aggravate the wear of the parts, so an air filter must be installed;
2. The air filter consists of two parts: a filter element and a shell;
3. The main requirements of the air filter are high filtration efficiency, low flow resistance, and continuous use for a long time without maintenance.