Yamaha F250USB Outboard Motor. 30-Inch Shaft DEC (Digital Electronic Control) Electric Start Power Trim & Tilt Gray. The Yamaha F250USB is a premium offshore outboard designed for maximum control, efficiency, and durability. Powered by Yamaha's 4.2L V6 four-stroke engine, this 250-horsepower model delivers exceptional acceleration, midrange punch, and smooth cruising-perfect for heavy offshore boats and long-range fishing trips.. With Digital Electronic Control (DEC), the F250USB offers effortless, precise throttle and shift operation, reducing driver fatigue while improving responsiveness. Its 30-inch shaft is ideal for extra-high transoms and deep offshore hulls, and the Gray marine-grade finish, combined with Yamaha's advanced corrosion protection, ensures years of reliable performance in saltwater conditions.. Key Features:. 250 Horsepower, 4.2L V6 Four-Stroke EngineStrong acceleration, reliable performance, and fuel efficiency.. Digital Electronic Control (DEC)Smooth, precise thro