Yamaha Outboards 250HP | F250ECB2: Commanding Power and Integrated Digital Electric Steering for Extra-Long Transoms

Experience unparalleled power and control with the Yamaha F250ECB2 outboard motor. This robust 250HP V6 4-stroke engine is meticulously engineered for the largest, heaviest boats with specific transom requirements. This often includes very large offshore center consoles, dual consoles, and custom applications. It proudly features the 35-inch (extra-long) shaft length and standard (clockwise) rotation. This shaft length ensures optimal propeller depth and performance on vessels designed for it.

The F250ECB2 boasts a fresh, new cowling design. Crucially, it incorporates innovative integrated Digital Electric Steering (DES) built directly into the engine. This significantly streamlines your transom. It delivers exhilarating power with exceptionally precise control. This motor integrates seamlessly with Yamaha’s comprehensive Helm Master EX® system. You’ll enjoy intuitive “drive-by-wire” throttle and shift. Furthermore, advanced boat control features, including joystick maneuverability and intelligent autopilot, are fully accessible. For the discerning boater seeking uncompromising power, pinpoint handling, and a sleek, modern aesthetic for a large-transom vessel, the F250ECB2 is an outstanding choice.

---

Why the Yamaha F250ECB2 Excels on the Water

The Yamaha F250ECB2 truly represents a significant leap in marine propulsion. Firstly, it is precisely tailored for the largest vessels, thanks to its 35-inch shaft length. This makes it an ideal fit for specific hull designs requiring this extended length. Secondly, the groundbreaking integrated Digital Electric Steering (DES) is a core feature. This system eliminates external hydraulic components. Therefore, you gain a remarkably clean transom. You also get incredibly smooth, precise, and responsive steering directly from the engine.

This level of integration, combined with the proven 4.2L V6 platform and full Helm Master EX® compatibility, completely transforms your boating experience. Navigating busy waterways, holding position over a prime fishing spot, or docking a large vessel becomes remarkably effortless. Ultimately, the F250ECB2’s powerful performance, refined operation, and refreshed styling enhance every moment on the water.

---

Key Features & Benefits: Power, Pinpoint Control, and Uncluttered Design

Let’s delve into the cutting-edge technologies and robust engineering that position the F250ECB2 as a premier choice for high-performance, single or multi-outboard installations on larger vessels.

Integrated Digital Electric Steering (DES) for Ultimate Control

The defining innovation of the F250ECB2 is its integrated Digital Electric Steering (DES). This state-of-the-art system is built directly into the outboard. It eliminates external steering cylinders, pumps, and hydraulic lines. This design offers significant advantages:

• Clean Transom & Bilge: You will notice no exposed steering components. This creates a vastly cleaner and more spacious boat stern. It also simplifies maintenance.
• Precise & Responsive Steering: Enjoy fingertip control. You get instant, silky-smooth steering response. This enhances maneuverability at all speeds.
• Reduced Power Draw: DES only draws power when actively steering. Therefore, it is highly efficient.
• Simplified Rigging: Installation is cleaner. Also, there are fewer potential points of failure. This is especially beneficial for complex multi-engine setups.

Seamless Helm Master EX® System Integration

The F250ECB2 is designed for full compatibility with Yamaha’s modular Helm Master EX® boat control system. With integrated DES, you unlock every Helm Master EX capability. No additional steering components are needed.

• Joystick Control: Experience intuitive, 360-degree boat maneuverability. Docking is effortless. You can make tight turns and precise low-speed maneuvers.
• Autopilot Functionality: Features like Course Hold, Heading Hold, and Track Point enable relaxed, hands-free navigation.
• SetPoint™ Modes: StayPoint™, FishPoint™, and DriftPoint™ automatically maintain your boat’s position or heading. These modes revolutionize fishing or holding steady in current.
• Pattern Steer: Pre-programmed fishing patterns help with precise lure presentation and efficient searching.

Potent 4.2L Big-Bore V6 for Exhilarating Power

At the core of the F250ECB2 is a formidable 4.2L (4169cc) 60-degree V6 engine. This “big-bore” displacement comes from an advanced plasma fusion process. This process applies to the cylinder walls. It eliminates conventional steel cylinder sleeves. Instead, cylinder walls become 60% harder than steel. Consequently, this allows for larger cylinder bores. This results in significantly more power and torque without increasing outer engine dimensions. This design also contributes to lighter weight, superior cooling, and reduced internal friction. Ultimately, these factors boost both performance and long-term reliability. Expect immediate, exhilarating power delivery when you demand it.

Optimal 35-inch Shaft Length for Extra-Long Transoms

The 35-inch (889mm) shaft length of the F250ECB2 is specifically designed for vessels requiring an extra-long transom height. This “extra-long” shaft ensures optimal propeller depth. It maintains efficient power transfer across diverse boating conditions. This length is particularly beneficial for very large offshore boats, custom builds, or specific multi-engine applications, providing ample clearance.

Standard Rotation for Flexible Rigging

The “F” designation signifies standard, or clockwise, rotation. This is crucial for single-engine applications, providing straightforward forward thrust. When used in multi-engine setups, it pairs perfectly with a counter-rotating (L) outboard. Thus, it balances propeller torque and enhances tracking.

Enhanced Aesthetics and Features with “CB2” Designation

The “CB2” suffix signifies that this F250 has received recent updates. These include a fresh, new cowling design. This provides a more modern and streamlined look. It also offers the option of a pearlescent white color alongside the traditional Yamaha gray. Additionally, if rigged with Helm Master EX, it can feature engine-mounted Propeller Indicator Lights, enhancing functionality and style.

Exceptional Fuel Efficiency for Extended Range

The F250ECB2 delivers commanding power, yet it boasts outstanding fuel efficiency. Its Precision Multi-Point Electronic Fuel Injection (EFI) system ensures precise fuel metering. It optimizes combustion for excellent economy. This intelligent system, combined with friction-reducing micro-textured cylinder walls, provides superb fuel economy. You’ll extend your cruising range. Therefore, you spend more time enjoying the water and less time at the fuel dock.

High-Output Charging for Extensive Electronics

Modern, well-equipped boats demand substantial electrical power. The F250ECB2 impressively produces up to 70 gross amps of charging power (55A battery charging). This ample output reliably powers your growing array of onboard electronics. This includes multiple fish finders and sophisticated navigation systems. It ensures all critical systems remain fully operational throughout your longest trips.

Smooth, Quiet, and Refined Operation

Yamaha engineers meticulously refined the F250ECB2 for impressively smooth and quiet operation. Engine exhaust gases route through a labyrinth of passages. They exit via an idle exhaust relief outlet, greatly reducing sound. The design minimizes vibration and noise. This creates a more comfortable and enjoyable time on the water, even during extended journeys. The new cowling design further dampens sound.

Built for Unwavering Durability and Smart Maintenance

The F250ECB2 is inherently built tough. It withstands the rigors of heavy use and harsh marine environments. Its advanced cowling drain system efficiently drains any water. This protects crucial internal components. Incoming air routes through a labyrinth of passages. These effectively trap and drain water, ensuring maximum reliability. Additionally, the outboard features Thrust Enhancing Reverse Exhaust (TERE). This innovative system keeps exhaust bubbles away from the propeller below 2500 RPM and in reverse. This means the prop bites only clean water. It results in outstanding reverse thrust and control. This is especially helpful when backing down on fish or maneuvering around docks.

For ultimate convenience, the F250ECB2 includes Yamaha’s exclusive TotalTilt™ Feature. A swift double-tap of the trim button performs a full tilt up or down. This makes trailering quick and easy. This feature is also handy for propeller changes or docking.

---

Technical Specifications (Yamaha F250ECB2 – 35-inch Shaft, Standard Rotation, Integrated DES):

• Engine Type: 4-Stroke, 24-Valve, DOHC with VCT, 60-degree V6
• Prop Shaft Horsepower: 250 hp (183.8 kW) @ 5500 RPM
• Displacement: 4169 cm³ (4.2L)
• Bore x Stroke: 96.0 x 96.0 mm
• Full Throttle Operating Range: 5000-6000 r/min
• Fuel Induction System: Electronic Fuel Injection (EFI)
• Lubrication System: Wet Sump
• Engine Oil Capacity: 6.3 L (with filter)
• Alternator Output: 70 A (gross, 55A battery charging)
• Starting System: Electric Starter
• Steering: Integrated Digital Electric Steering (DES)
• Trim Control System: Power Trim and Tilt with TotalTilt™
• Gear Ratio: 1.75:1
• Shaft Length: E: 889 mm (35.0 inch)
• Dry Weight: Approximately 277 kg (611 lbs) – Weight with integrated DES. Weight is approximate and depends on specific configuration.
• Propeller Rotation: Clockwise (Standard)
• Ignition System: TCI Micro-computer
• Recommended Fuel: Unleaded gasoline (minimum 87 octane)
• Cooling System: Raw-water, thermostatically controlled
• Exhaust System: Through propeller hub (with Thrust Enhancing Reverse Exhaust)
• Controls: Digital Electronic Controls (DEC) – Required for full functionality and Helm Master EX compatibility.
• Cowling Design: New, modern design, available in Yamaha gray or pearlescent white.

---

Optimize Your Rig with Genuine Yamaha Accessories:

To fully unlock your F250ECB2’s potential, consider integrating these genuine Yamaha accessories:

• Yamaha Helm Master EX® System Components: With integrated DES, you are ready for the complete suite of Helm Master EX joystick control, autopilot, and SetPoint™ features.
• Yamaha CL5 or CL7 Digital Displays: These touchscreen displays provide comprehensive engine data and seamless control for Helm Master EX features.
• Saltwater Series II™ HP Propellers: These high-performance propellers complement Yamaha’s V6 Offshore outboards. They offer excellent performance. Plus, they feature the Shift Dampener System (SDS®) for smoother, quieter shifting. Ensure you select the correct pitch and diameter for your specific boat.
• Yamaha 10-Micron Water Separating Fuel Filter: This external filter provides superior protection against water and contaminants. It enhances reliability and extends engine longevity.

---

Power Your Journey: The Yamaha F250ECB2 Advantage

The Yamaha F250ECB2 is more than just a powerful outboard. Indeed, it is a meticulously engineered system. It delivers the pinnacle of marine performance and control. This outboard embodies Yamaha’s legacy of uncompromising quality, advanced engineering, and unwavering reliability. With its potent 250HP, groundbreaking integrated Digital Electric Steering, versatile 35-inch shaft, and seamless Helm Master EX® compatibility, it offers unmatched precision and convenience. It’s the ideal choice for boaters. They demand cutting-edge technology, a clean and uncluttered transom, and Yamaha’s legendary performance for their offshore fishing, cruising, and recreational adventures.

Ready to experience the confident power and transformative control of the Yamaha F250ECB2? Contact us today. Discuss your specific boating requirements. Discover how this advanced outboard can elevate your time on the water. Get a personalized quote. Or, explore our full selection of Yamaha outboards. Our dedicated team is here to help you find the ideal power solution for your next marine adventure!