A carburetor is a mechanical device that mixes air and fuel for an internal combustion engine. The air-fuel mixture enters the engine through the carburetor, where it is ignited by a spark plug.
The carburetor has a float chamber that regulates the level of fuel in the mixture. The mixture should be about half gas and half air. If the mixture is too rich (too much gas), it will cause the engine to run too lean (not enough power) and may damage the engine. If the mixture is too lean (not enough gas), it will cause the engine to run too rich (too much power) and may also damage the engine.