Patent ID: 8196901

Claim:
A replacement carburetor for an engine configured to combust a first fuel, the engine including an air cleaner, and a first carburetor having a fuel bowl, a first vent passageway having a first flow area, and a first primer passageway that extends between the air cleaner and the fuel bowl, the first vent passageway being blocked to inhibit flow along the first vent passageway, the replacement carburetor configured to be attached to the engine to allow the engine to combust a second fuel, the replacement carburetor comprising: a carburetor body including a first flange, a second flange, and a carburetor throat therebetween; a fuel bowl coupled to the body and configured to contain a volume of fuel; a second vent passageway at least partially defined by the carburetor body and extending between the first flange and the fuel bowl, the second vent passageway defining a second flow area that is smaller than the first flow area; and a second primer passageway configured to provide an uninterrupted flow of air between the air cleaner and the fuel bowl.