Modular side-draft carburetor

摘要

A carburetor comprising a combined float bowl and venturi section including an air passage with a venturi, a rotatably supported throttle valve plate located in the air passage, and a float chamber adapted to contain fuel, and a separate metering section mounted on the float bowl and venturi section, the metering section being molded of plastic and including a fuel passage communicating between the float chamber and the air passage, a needle valve seat within the fuel passage, an internally threaded bore having therein threads molded integrally with the metering section, and an externally threaded needle valve threadedly received in the bore and being movable into and out of engagement with the valve seat for controlling fuel flow through the fuel passage.