Yamaha LF250USB4 Outboard Motor. 30-Inch Shaft Counter Rotation DEC (Digital Electronic Control) Electric Start Power Trim & Tilt Classic White. The Yamaha LF250USB4 combines Yamaha's trusted offshore power with the refined look of a Classic White finish, making it a premium choice for twin-engine vessels that require precise handling and exceptional durability. Built on Yamaha's proven 4.2L V6 four-stroke platform, it produces 250 horsepower with excellent midrange torque, quick acceleration, a