Mercury 650 Outboard Information

Founded in 1939, Mercury Marine is a manufacturer of various marine engines. The Mercury model 650, also known as the Merc 650, was last sold under this model name in 1976.

  1. Performance

    • Under wide open throttle, the Mercury 650 outboard had a maximum optimal speed range between 29 and 33 mph and a minimum optimal speed range between 15 and 18 mph. The motor created 65 hp, and had a maximum wide open throttle rpm of 5,300 and a minimum of 4,800 rpm.

    Features

    • The Mercury 650 featured a two-stroke, three-cylinder outboard engine that had a gear ratio of 2.30-to-1. The spline count for the engine featured 13 teeth connecting the hub to the shaft.

    Propeller

    • The propeller for the Mercury 650 was made of three blades and had a diameter that ranged from 10.2 to 12.25 inches. The propeller pitch ranged from 9 to 17 degrees.