Yamaha F8LMHB Outboard Motor. 20-Inch Shaft Tiller Handle Manual Start Manual Tilt Gray. The Yamaha F8LMHB Outboard Motor offers portable power with a longer reach. Designed for boats with deeper transoms-such as sailboats or taller skiffs-this 20-inch shaft model delivers smooth 8-horsepower performance in a lightweight 4-stroke platform. Known for its quiet operation, fuel efficiency, and easy handling, the F8LMHB is ideal for cruising, trolling, or serving as a reliable auxiliary engine.. It