Patent ID: 6848405

Claim:
A self-relieving choke starting system of a carburetor for a combustion engine comprising: a body of the carburetor; an elongated fuel-and-air mixing passage defined by the body; a choke valve having a rotating shaft extending laterally through the fuel-and-air mixing passage and through the body, and a latch projecting radially outward from the choke shaft; wherein the choke shaft rotates between an open position, an intermediate position, and a closed position; a throttle valve having a rotating shaft extending laterally through the fuel-and-air mixing passage and through the body and a follower arm projecting radially outward from the throttle shaft; wherein the throttle shaft rotates between a full throttle state, a fast idle state and a slow idle state; a throttle spring operably connected to the throttle valve and biasing the throttle valve toward the slow idle state; the latch carrying a cam end; the follower arm having a first indent and a second indent disposed radially inward from the first indent with respect to the throttle shaft; and wherein the cam end is located in the first indent when the choke valve is in the intermediate position and the throttle valve is in the fast idle state, and wherein the cam end is located in the second indent when the choke valve is in the closed position and the throttle valve is in the fast idle state.