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, and fuel-efficient cruising—ideal for large offshore center consoles, sportfishing boats, and multi-engine yachts.

Featuring Digital Electronic Control (DEC), the LF250USB4 delivers smooth, precise throttle and shift response in all conditions. Its counter-rotation configuration is designed to pair with a standard-rotation F250USB4, balancing steering forces, improving tracking, and enhancing stability in rough seas. The 30-inch shaft provides optimal propeller depth for tall offshore transoms, ensuring maximum efficiency and control.

⚠️ Important: This is a Digital Electronic Control (DEC) engine and must be installed by an authorized Yamaha dealer. Both the outboard and the DEC control system require flashing and configuration with Yamaha diagnostic tools during installation. DIY installation is not supported.

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Key Features:

• 250 Horsepower, 4.2L V6 Four-Stroke Engine
  Offshore-grade power with exceptional reliability.
• Classic White Finish
  Timeless aesthetic with Yamaha’s marine-grade corrosion resistance.
• Counter-Rotation
  Improves steering balance, tracking, and control in twin setups.
• Digital Electronic Control (DEC)
  Smooth, accurate throttle and shift operation for superior handling.
• 30-Inch Shaft Length
  Designed for tall transoms and deep-water performance.
• Electric Start
  Push-button ignition for quick and dependable starting.
• Power Trim & Tilt
  Adjust motor angle for performance, efficiency, or shallow-water clearance.
• Electronic Fuel Injection (EFI)
  Maximizes fuel efficiency, responsiveness, and overall dependability.

Need help choosing your engine? Check out our Yamaha engine guide.

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Frequently Asked Questions

Q: What does “B4” indicate?
A: It identifies the latest version featuring the Classic White finish and updated rigging compatibility.

Q: Can this engine be used in saltwater?
A: Absolutely—Yamaha’s corrosion protection system ensures long-term durability in harsh marine environments.

Q: Can it be paired with a standard rotation motor?
A: Yes—this counter-rotation model is specifically designed to match with a standard-rotation F250USB4.