A carburetor is a device in an engine that mixes air and fuel to create a combustible mixture. It plays a crucial role in how well an engine runs, especially in older vehicles. By controlling the amount of air and fuel that enters the engine, the carburetor helps ensure that the engine operates efficiently and smoothly. In modern cars, many have replaced carburetors with fuel injectors, which are more efficient. However, carburetors are still found in some motorcycles, lawnmowers, and classic cars. Understanding how a carburetor works can help with maintenance and repairs for these types of engines.