Patent ID: 7152580

Claim:
An internal combustion engine, comprising: an engine housing; a crankshaft rotatably supported within said engine housing; a carburetor including an intake passage with a throttle valve, said throttle valve positionable between a substantially closed position, a substantially open position, and a fully open position; a primary speed control mechanism including a first operator control element connected to said throttle valve via mechanical linkage, said first operator control element rotatable about an axis to selectively position said throttle valve between said substantially closed and said substantially open positions; and a manually-actuable secondary speed control mechanism including a second operator control element rotatable about said axis, said second operator control element movable into and out of engagement with at least one of said first operator control element and said mechanical linkage to selectively position said throttle valve between said substantially open and said fully open positions, wherein said secondary speed control mechanism further comprises a trigger mechanism mechanically linked to said throttle valve by linkage which includes at least a cable.