Patent ID: 8453998

Claim:
A carburetor, including: an air passage and a fuel and air mixing passage; a throttle valve disposed in communication with the fuel and air mixing passage and movable between an idle position and an open position permitting an at least somewhat less restricted fluid flow therethrough than when the throttle valve is in the idle position; an air valve disposed in communication with the air passage, and movable between closed and fully open positions to control air flow through the air passage; a lost motion coupler interconnecting the air valve and the throttle valve and constructed to provide a limited opening movement of the throttle valve away from its idle position without a corresponding opening movement of the air valve, and provide opening movement of the air valve along with further opening movement of the throttle valve after said limited movement of the throttle valve and until the air valve is fully open with the throttle valve only partially open, and to provide substantial further opening movement of the throttle valve to its wide open position after the air valve is fully open.