‌The function of a motorcycle air filter is to filter impurities in the air and ensure that the engine gets clean air. Filter impurities: The air filter can effectively filter dust, sand, pollen, metal particles and other impurities in the air entering the engine. If these impurities enter the engine, they will aggravate the wear of components such as pistons, cylinder walls, valves, and shorten the service life of the engine. For example, when driving in a dusty road environment, if there is no air filter to filter, a large amount of dust will enter the engine with the air, accelerating the wear of the parts and causing the engine performance to decline. Ensure combustion quality: Clean air helps the fuel burn fully. The air filter ensures that the air entering the engine is pure. Regular inspection and replacement of air filters is essential to maintaining motorcycle performance.