What is one of the key functions of carburetors?

One of the key functions of carburetors is to introduce fuel to the incoming air stream. This process is crucial for the proper operation of internal combustion engines. The carburetor mixes air and fuel in the appropriate ratio, which is essential for efficient combustion within the engine’s cylinders.

As the air flows into the carburetor, it passes through a narrow passage, causing a drop in pressure. This pressure drop draws fuel from the fuel bowl into the airflow, creating a fine mist of fuel that mixes with the incoming air. This mixture is then delivered to the engine for combustion. An optimal air-fuel mixture is vital to ensure the engine runs smoothly, performs well, and produces minimal emissions.

Understanding this function is fundamental for anyone involved in the maintenance and repair of engines equipped with carburetors, as it directly affects the engine’s performance, efficiency, and emissions.