Apparatus for supplying starting-fuel for a carburetor

A carburetor comprising, a body, a mixing passage through said body having an air inlet and a fuel and air mixture outlet, a throttle valve in said mixing passage between said inlet and said outlet and mounted on a throttle shaft carried by said body, a fuel chamber carried by said body, a main metering jet communicating with said mixing passage upstream of said throttle valve and with said fuel chamber, a mixing chamber carried by said body, a fuel intake passage communicating with said mixing chamber and said fuel chamber, an air intake passage communicating with said mixing chamber and said mixing passage upstream of said throttle valve for supplying air to mix with fuel in said mixing chamber, an outlet passage communicating with said mixing chamber and said mixing passage downstream of said throttle valve for supplying a mixture of fuel and air from said mixing chamber to said mixing passage downstream of said throttle valve, a control valve carried by said body, communicating with said outlet passage, and having a plunger movable to a closed position and an open position of said control valve to control the flow of an air and fuel mixture from the mixing chamber to the mixing passage, an actuator shaft carried by said body and operably connected with said plunger to move said plunger to open and closed positions of said control valve in response to rotary movement of said actuator shaft, and a mechanical mechanism operably associated with said actuator shaft and said throttle shaft for releasably retaining said actuator shaft in the open position of said control valve and releasing and rotating the actuator shaft to the closed position of said control valve in response to rotary movement of the throttle shaft to move the throttle valve from an idle position toward a full open position of said throttle valve.