Yamaha Outboard - F9.9SMHB. Yamaha F9.9SMHB Outboard Motor. 15-Inch Shaft Tiller Handle Manual Start Manual Tilt Gray. The Yamaha F9.9SMHB Outboard Motor delivers smooth, fuel-efficient performance in a lightweight and portable design. With 9.9 horsepower and a compact 4-stroke platform, this motor is an excellent choice for small boats, jon boats, inflatables, and as a kicker for larger vessels. It's engineered for responsive control, quiet operation, and maximum reliability-hallmarks of Yamaha