Yamaha Harmo Outboard 9.9HP | H3.1BSPX

Yamaha HARMO H3.1BSPX 9.9 HP Electric Outboard Motor: The Smart Choice for Standard Transoms

The Yamaha Harmo Outboard 9.9HP | H3.1BSPX .

Are you, by any chance, searching for a state-of-the-art electric outboard motor that offers exceptional quietness and precise control for boats with standard transoms? One that delivers the equivalent power of a 9.9 horsepower gasoline outboard, coupled with advanced digital steering and full integration with sophisticated boat control systems?

Shop the Yamaha HARMO H3.1BSPX electric outboard. 9.9HP equivalent, 20″ shaft, silent, zero emissions, and integrated with Helm Master EX for ultimate control. Perfect for pontoons & fishing boats. Order now!

The Yamaha HARMO H3.1BSPX Electric Outboard Motor is your prime solution. This particular model, indeed, is a key component within Yamaha’s groundbreaking HARMO electric propulsion lineup, specifically optimized for widespread compatibility with various vessels. Furthermore, it provides robust static thrust (227 lbs), efficient electric power (3.7 kW), and seamlessly integrates with Yamaha’s cutting-edge Helm Master® EX boat control system.

Consequently, the H3.1BSPX makes an exceptional power plant for a wide array of pontoon boats, smaller to mid-sized fishing boats, and tenders, especially those operating in noise-sensitive or environmentally restricted areas. Crucially, the H3.1BSPX combines superior performance and refined control with Yamaha’s unwavering commitment to sustainability and quiet operation. Ultimately, it promises an entirely new level of silent, efficient, and effortlessly controlled boating.

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Why the HARMO H3.1BSPX Excels: Standard Compatibility, Precise Maneuvering, and Eco-Friendly Operation

For boaters who prioritize a tranquil, eco-friendly, and highly controllable experience on vessels with standard transoms, the Yamaha HARMO H3.1BSPX, in fact, stands out as a true game-changer. Primarily, its 20-inch standard shaft length ensures optimal compatibility and propeller submersion for a broad range of common boat designs. Therefore, it delivers consistent thrust and efficiency across various water conditions.

Moreover, the innovative rim-drive electric motor design, unique to HARMO, positions the motor around the outside of the impeller. As a result, this allows for a larger, more efficient impeller, generating significant static thrust (227 lbs / 102 kgf) with minimal cavitation. In addition, the full integration with Helm Master® EX, including joystick control and Digital Electric Steering (DES), offers an impressive 140-degree steering angle. This, consequently, provides incredibly crisp and precise maneuvering, even allowing lateral movement in twin configurations.

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Why the HARMO H3.1BSPX Excels (Continued)

Beyond that, the H3.1BSPX operates on a 48-volt system, compatible with dedicated Yamaha lithium-ion batteries or approved conventional 12-volt batteries (configured for 48V). Furthermore, its inherent electric nature means zero exhaust emissions and virtually no noise or vibration. Naturally, this makes it perfect for peaceful cruising and stealthy fishing. Therefore, the HARMO H3.1BSPX consistently delivers powerful, precise, and remarkably quiet performance, while being an environmentally responsible choice for modern boating, ensuring a superior experience every time.

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Core Features of Your Yamaha HARMO H3.1BSPX Electric Outboard

Fully Electric Propulsion

The H3.1BSPX is a fully electric propulsion unit. This means, for instance, it produces zero emissions at the point of use and operates with near-silent efficiency. Consequently, it allows boaters to fully appreciate the sounds of nature, from wildlife to gentle waves, without the disturbance of engine noise.

Innovative Rim-Drive Technology

At the core of the H3.1BSPX is its unique rim-drive electric motor. This design, for example, mounts the motor around the impeller’s outer edge. Therefore, it maximizes thrust and minimizes drag, leading to superior pushing power and efficiency compared to traditional propeller designs.

Equivalent to 9.9 Horsepower

The H3.1BSPX system delivers 3.7 kilowatts of power, which translates to the equivalent of a 9.9 horsepower gasoline outboard. As a result, it provides ample static thrust (227 lbs / 102 kgf) for a variety of small to mid-sized boats, ensuring responsive acceleration and reliable performance.

Standard (20-inch) Shaft

The “BS” in H3.1BSPX signifies a standard 20-inch shaft length. This makes it ideal for the majority of vessels with common transom heights, including many pontoon boats, fishing boats, and tenders. Ultimately, it ensures the impeller remains properly submerged for optimal performance.

Advanced Control with Helm Master® EX Integration

The H3.1BSPX is fully integrated with Yamaha’s cutting-edge Helm Master® EX boat control system. This integration, for instance, offers advanced features like intuitive joystick control, SetPoint™ positioning, and Autopilot™ capabilities. Therefore, it provides unparalleled precision for docking, holding position, and automated navigation, greatly enhancing overall convenience and confidence on the water.

Digital Electric Steering (DES)

The H3.1BSPX features Digital Electric Steering (DES), providing an immediate and precise response to boater inputs. This technology, for example, enables a wide steering angle (up to 140 degrees), allowing for incredibly sharp handling, including rotating a single-engine boat within its length and true lateral movement in twin configurations.

Flexible Battery Solutions

The HARMO system operates on a 48-volt power supply. Moreover, it offers flexibility in battery choice, supporting dedicated Yamaha lithium-ion batteries or configurations using Yamaha-approved traditional 12-volt batteries. Consequently, boaters can choose the power solution that best fits their needs and budget, along with a convenient Stage of Charge (SoC) battery status display.

Standard Conventional Mounting

The H3.1BSPX is designed with a standard, conventional mounting bracket. This practical design, for instance, ensures ease of installation on a wide variety of transoms and pontoons. Furthermore, it simplifies conversion for existing boats looking to transition to electric propulsion.

Automatic Tilt

The HARMO system features automatic tilt during operation. This means, the motor can automatically tilt up or down as needed. Consequently, it enhances ease of use and helps protect the impeller, especially in varying water depths.

Extremely Low Vibration and Noise

Due to its electric nature and rim-drive design, the H3.1BSPX produces extremely low vibration and noise levels. This makes it ideal for peaceful cruising and quiet fishing, allowing users to fully appreciate the marine environment without distractions.

Environmentally Friendly

As an electric outboard, the H3.1BSPX produces zero water pollution and zero exhaust gas odor. Consequently, it’s an excellent choice for environmentally conscious boaters and for use on waterways with internal combustion engine restrictions.

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Perfect Applications for Your Yamaha HARMO H3.1BSPX Outboard

The Yamaha HARMO H3.1BSPX Electric Outboard Motor is engineered for a diverse range of marine applications where quiet operation, precise control, and compatibility with standard transoms are paramount:

• Pontoon Boats (Small to Mid-size): Indeed, it’s an excellent choice for pontoon boats, delivering smooth, quiet cruising and enhanced maneuverability, particularly for those with standard transom heights.
• Fishing Boats (Sensitive Waterways/Stealth Angling): Furthermore, its near-silent operation makes it ideal for stealthy angling, especially in areas where internal combustion engines are restricted or undesirable.
• Tenders and Dinghies: Moreover, it offers silent and clean propulsion for tenders, providing a quiet ride to and from larger vessels, and easily fitting standard transom heights.
• Rental Fleets and Sightseeing Boats: Naturally, the H3.1BSPX is a great option for commercial operations due to its ease of use, low maintenance, and environmental benefits, allowing quiet tours.
• Lakes and Restricted Waterways: Crucially, the H3.1BSPX is perfectly suited for use on lakes and rivers with noise or emission regulations, ensuring compliance and an undisturbed experience.

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Yamaha’s Unwavering Commitment to Innovation and Sustainability

Choosing a Yamaha HARMO electric outboard means more than just purchasing a motor. You’re investing in the future of marine propulsion. Instead, you’re embracing a product backed by Yamaha’s decades of engineering excellence, now applied to sustainable technology. The HARMO H3.1BSPX system truly embodies Yamaha’s dedication to innovation, environmental stewardship, and enhancing the boating experience. Indeed, it’s a key component of Yamaha’s multi-technology approach to carbon neutrality in the marine industry. Ultimately, HARMO redefines what’s possible in electric boating, delivering a sophisticated blend of performance, convenience, and eco-consciousness.

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Technical Specifications (Approximate – Always Verify with Official Yamaha Resources)

• Motor Type: Electric, Rim-Drive Propulsion System
• Motor Power: 3.7 kW
• Equivalent Horsepower: 9.9 HP (gasoline-powered equivalent)
• Static Thrust: 227 lbs (102 kgf)
• Configuration: Single or Twin
• Control System: Helm Master® EX, including joystick, remote control, and Digital Electric Steering (DES)
• Steering Angle (Max): 140 degrees
• Nominal Voltage: 48V DC
• Shaft Length: 20 inches (Standard Long Shaft)
• Weight (Motor Unit): Approximately 121 lbs (55 kg) (Original HARMO) or 141 lbs (64kg) (Newer HARMO 2.0). Please verify with the latest Yamaha specs as weights can vary by generation.
• Battery Compatibility: Yamaha Lithium-Ion 48V batteries or Yamaha-approved traditional 12V batteries (configured for 48V)
• Features: Integrated Digital Electric Steering, Helm Master® EX compatibility, Conventional mounting bracket, Low-profile rigging tube, Automatic tilt during operation, Self-sacrificing anodes, Variable motor RPM control, Fail-safe system, Extremely low vibration and noise, Zero water pollution, Zero exhaust gas odor, Low power consumption, Easy serviceability.
• Expected Availability: Early 2025 (for newer HARMO generation, potentially including this exact model code)

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Ready to experience the tranquility and precision of electric boating on your standard transom vessel? Invest in the Yamaha HARMO H3.1BSPX Electric Outboard Motor today. Discover the difference. Experience silent operation, powerful thrust, and intuitive control, all while contributing to a cleaner marine environment. Ultimately, make your next time on the water an unforgettable, harmonious journey.