Yamaha F250ECB Outboard Motor. 35-Inch Shaft DEC (Digital Electronic Control) Electric Start Power Trim & Tilt Gray. The Yamaha F250ECB is engineered for maximum control, efficiency, and performance in demanding offshore conditions. Built on Yamaha's proven 4.2L V6 four-stroke platform, this 250-horsepower outboard delivers impressive acceleration, powerful midrange torque, and smooth, fuel-efficient cruising-making it a top choice for large offshore fishing boats, deep-V hulls, and multi-engine