A professional who analyzes defects, and adjusts or repairs electrical and mechanical systems of outboard motors. Respnsibilities include:

• Disassembles and inspects motor for defective parts, using mechanic's handtools and gauges.
• Replaces parts, such as gears, magneto points, piston rings, and spark plugs, and reassembles engine.
• Adjusts carburetor mixture and electrical point settings while motor is running in water-filled test tank.
• May change propeller to increase motor efficiency, based on size and shape of boat hull.
• May install or repair steering and throttle controls.