Carburetor with replaceable booster venturis

A carburetor for an internal combustion engine, comprising:

• a sidewall having an interior surface defining an air passage for the movement therethrough of air from the atmosphere to an internal combustion engine, and an external surface;
• a fuel inlet port formed in and extending through said sidewall from said external surface to said internal surface;
• a booster venturi mounted to said sidewall, said booster venturi including a venturi ring placed in said air passage, a support conduit having an internal passage extending therethrough and a first end mounted to and in fluid communication with said venturi ring and a second end extending to and in fluid communication with said fuel port and having a conduit connector means at its second end, a positioning means located on and protruding away from said support conduit between said conduit connector means and said venturi ring in engagement with said sidewall;
• an external connector means releasably engaging said sidewall and said conduit connector means and releasably urging said positioning means against said sidewall without blocking the fluid passage of said support conduit;
• so that said venturi ring is in fluid communication with said fuel port and fuel can be drawn from said fuel port to the venturi ring and into the air flowing through the air passage.