Air intake refers to the process by which an engine draws in air to mix with fuel for combustion. This is a crucial step in the operation of internal combustion engines, such as those found in cars and motorcycles. The air intake system typically includes components like the air filter, intake manifold, and throttle body, which work together to ensure that clean air enters the engine efficiently. Proper air intake is essential for optimal engine performance and fuel efficiency. If the air intake system is blocked or malfunctioning, it can lead to reduced power output, increased emissions, and poor fuel economy. Regular maintenance of the air intake components, including replacing the air filter, can help keep the engine running smoothly.