What is the primary function of the carburetor in a four-stroke engine?

The primary function of the carburetor in a four-stroke engine is to mix fuel with air before it enters the cylinder. This is critical for the engine's operation because the correct air-fuel mixture ensures efficient combustion. The carburetor uses various components, such as jets and vents, to atomize the fuel and blend it with incoming air, creating a combustible mixture that is delivered to the combustion chamber during the intake stroke.

This mixing process is vital for the engine to run smoothly and efficiently. The performance of the engine, including its power output and fuel efficiency, heavily depends on the quality of this air-fuel mixture, illustrating why the carburetor plays such an essential role in engine operation.