Yamaha F6LMHA Outboard Motor. 20-Inch Shaft Tiller Handle Manual Start Manual Tilt Gray. The Yamaha F6LMHA Outboard Motor offers quiet, fuel-efficient performance in a portable 4-stroke platform with a longer 20-inch shaft-ideal for sailboats, small skiffs, and vessels with deeper transoms. With 6 horsepower and Yamaha's signature reliability, this engine delivers smooth, controllable power for boaters who demand lightweight maneuverability without sacrificing capability.. Its twist-grip throttl