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How Carburetors Work

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Carburetion would not be possible if not for the venturi effect. As air travels through a carburetor, it speeds up in the section where the venturi necks down in diameter. This creates a low-pressure area, which allows fuel to be drawn into the carburetor.
How Carburetors Work - Carbin' It Easy

 Carburetion would not be possible if not for the venturi effect. As air travels through a carburetor, it speeds up in the section where the venturi necks down in diameter. This creates a low-pressure area, which allows fuel to be drawn into the carburetor.  View Related Article

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