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Yamaha - 4 Stroke Engine - F425A

At 425 horsepower, the F425A is the most powerful motor in Yamaha’s 4-stroke outboard lineup and the first 4-stroke model in the industry to feature gasoline direct injection as well as an integrated electric steering system. Yamaha engineered the design to maximize the advantages of its power, focusing on the smallest details for everything from the top case to the propeller. Besides performance, the serviceability of the unit has also been improved for greater user convenience. Lastly, Yamaha aimed to create a beautiful exterior design worthy of the ultimate outboard and Yamaha’s flagship model.

Engine 32-valve, DOHC with VCT, 60 deg. V8
Fuel Supply Direct Fuel Injection
Displacement 5559 cc
Output kW/rpm 316.9 (425)/5500
Recommended Max RPM
Starter System Electric Starter
Operation Method Digital Electronic Contro
Lubrication Wet sump
Trim & Tilt Power Trim & Tilt
Dry Weight 442-463 kg
Height X: 640(25.2), U: 767(30.2
Fuel Tank Capacity