The invention provides a fuel tank venting system for an engine. The fuel tank venting system includes a fuel tank (20), a carburetor (35), and a fuel tank vent passageway (50). The carburetor (35) is coupled to the fuel tank (20). The fuel tank vent passageway (50) is in fluid flow communication with the fuel tank (20) and at least partially disposed inside the carburetor (35). The fuel tank venting system may further include an air filter (30) and a roll-over valve (115). The air filter (30) may include a carbon-impregnated foam element (130).