Throttle is a rectangular p shape of carbon steel, cadmium plate; has 2 holes 0.540 in. From each side, 0.440 in. From the side, 1.245, 1.255 in apart, each hole is 0.342, 0.349 inches in diameter; throttle is 2.120 inches long, 1.340 inches high, and 0.500 inches wide