Yamaha Outboards 40HP | F40JEHA

 

Yamaha F40JEHA 40 HP Four-Stroke Jet Drive Outboard: Electric Start, Long Shaft, Tiller Control for Ultimate Shallow Water Access

The Yamaha Outboards 40HP | F40JEHA.

Are you in search of an outboard motor that can conquer extreme shallow water, rocky rivers, and tricky shoals where propeller-driven boats dare not go? Specifically, do you need an engine that combines robust 40 horsepower (30 HP at the jet pump) with effortless electric starting, precise tiller control, and the incredible maneuverability of a jet drive?

Shop the Yamaha F40JEHA 40HP (30HP Jet) 4-stroke jet drive outboard with 20″ long shaft, electric start, tiller control, & EFI. Features 103kg three-cylinder design, Nitro-Assist Tilt. Ideal for shallow water, rivers, rocky areas. Powerful & efficient.

The Yamaha F40JEHA 40 HP Four-Stroke Jet Drive Outboard Motor is the perfect choice for adventurous boaters. It demands reliable, fuel-efficient, and responsive performance from a streamlined, long-shaft package, coupled with the convenience of electric start and direct tiller operation.

Indeed, the F40JEHA is designed for specialized applications where propeller obstruction is a concern. While rated at 40 horsepower at the powerhead, it produces approximately 30 HP at the jet pump, which is the usable thrust. It features a critical 20-inch long shaft (508 mm or 20 inches). Consequently, this ensures optimal intake depth for the jet pump, particularly on vessels with higher transoms, such as flat-bottom river boats, jon boats, or airboat-style hulls. Crucially, it comes equipped with a smooth electric start system, which makes starting effortless.

Additionally, it boasts a versatile tiller handle for intuitive, direct command, often including Yamaha’s Variable Trolling RPM Switch (VTS). Moreover, weighing around 103 kg (227 lbs), it offers a strong power-to-weight ratio for a jet drive. Furthermore, this model integrates Electronic Fuel Injection (EFI) for quick starts and superior fuel efficiency. Ultimately, the F40JEHA ensures a smooth, quiet, and highly efficient boating experience, making it a truly dependable and adaptable power source for those needing to navigate the most challenging, shallow waterways with electric start and tiller control convenience.

---

Decoding the F40JEHA Model Code

The “JEHA” in the Yamaha F40JEHA model designation precisely defines its characteristics.

Jet Drive (“J”)

Specifically, the “J” signifies that this is a Jet Drive outboard. This is the most crucial distinction, meaning it has no external propeller or lower unit. Instead, it propels the boat by expelling a high-velocity stream of water.

Electric Start (“E”)

Next, the “E” stands for Electric Start. This indicates that the engine starts effortlessly using an electric starter motor, typically with a key switch or push-button.

Tiller Handle (“H”)

Furthermore, the “H” denotes a Tiller Handle. This means the engine is controlled directly via the tiller handle. This ergonomic handle integrates throttle, steering, and often additional features like the Variable Trolling RPM Switch (VTS).

Model Series (“A”)

Finally, the “A” suffix often indicates a specific generation or series within the F40 Jet Drive lineup, signifying updates or refinements.

Therefore, the F40JEHA is meticulously engineered for boaters. It prioritizes shallow water access, significant portable power, the convenience of electric starting, and direct, hands-on tiller control of their craft in challenging environments.

---

Why the Yamaha F40JEHA Excels: Key Advantages

For boaters requiring a genuinely powerful yet lightweight outboard with the critical advantage of navigating extremely shallow waters, the luxury of electric start, tiller control, and advanced features, the Yamaha F40JEHA truly stands out.

Unparalleled Shallow Water Performance (Jet Drive)

Primarily, the defining feature of the F40JEHA is its Jet Drive lower unit. Consequently, with no propeller or skeg extending below the hull, this outboard can operate in incredibly shallow water (often just inches deep) without fear of striking rocks, logs, or other submerged obstructions. This makes it ideal for navigating rocky rivers, whitewater rapids, shoals, and skinny water flats that would be impassable for conventional prop-driven outboards. Thus, it provides exceptional freedom to explore previously inaccessible areas.

Responsive and Efficient Three-Cylinder Engine

Indeed, the F40JEHA is driven by a 747cc SOHC (Single Overhead Camshaft) three-cylinder four-stroke engine. As a result, this large displacement boasts excellent low-down torque and robust mid-range power. While rated at 40 HP at the powerhead, it produces approximately 30 HP at the jet pump (at 5500 RPM). Moreover, this provides significant thrust for quick hole shots, better acceleration, and efficient operation for jet-specific applications.

Electronic Fuel Injection (EFI) for Superior Performance

A key enhancement in the F40JEHA is its Electronic Fuel Injection (EFI) system. As a result, this multi-point EFI system, controlled by an Engine Control Module (ECM), precisely meters fuel to each cylinder. Consequently, this leads to dependable, “first-time, every-time” hot and cold starts. Furthermore, it ensures improved fuel efficiency, smoother acceleration, and excellent throttle response across the entire RPM range, crucial for navigating dynamic river conditions.

Long Shaft for Optimal Water Depth

Crucially, the 20-inch long shaft is a defining feature. It ensures the jet pump intake is adequately submerged to prevent cavitation, especially on boats with higher transoms designed for jet drives.

Optimal Power-to-Weight Ratio and Portability

Furthermore, weighing approximately 103 kg (227 lbs), the F40JEHA strikes an excellent balance between power and portability for a 40 HP electric start long-shaft jet outboard with EFI. This ensures it’s powerful enough for diverse uses, yet remains manageable for mounting and removal, offering a solid weight advantage in its class.

Effortless Electric Start and Nitro-Assist Tilt

Moreover, the electric start system provides unparalleled convenience. Simply put, manual pull-starting is completely eliminated; a simple turn of a key or push of a button brings the engine to life. As a result, this makes operation much easier, especially in unpredictable conditions. Additionally, the Nitro-Assist Tilt system makes manually tilting the motor almost effortless, improving ease of use for launching, beaching, or navigating extremely shallow spots where the jet may need to be raised.

Advanced Tiller Control with VTS

The F40JEHA is equipped with Yamaha’s optional, award-winning Multi-Function Tiller handle. This features a twist-grip throttle for precise speed control. Furthermore, it integrates the Variable Trolling RPM Switch (VTS), allowing for precision trolling speed adjustments in 50-RPM increments (from 650-900 RPM) directly from the tiller. Moreover, its wide steering angle provides exceptional maneuverability, allowing for nimble navigation in tight waterways. Likewise, it features a clear Forward-Neutral-Reverse (F-N-R) gear shift, offering precise control and ease of handling, crucial for river operations.

Clean, Smooth, and Quiet Four-Stroke Power

The F40JEHA features a 747cc three-cylinder, SOHC four-stroke engine. As a result, this design ensures exceptionally quiet, smooth, and fuel-efficient operation with ultra-low emissions. In addition, it boasts a CARB 3-Star Rating, signifying its environmentally responsible performance. Ultimately, features like its single throttle valve, long-track induction system, and through-jet nozzle exhaust contribute to its remarkably quiet operation.

High-Output Alternator for Onboard Power

Significantly, the F40JEHA offers a robust 16-17 amp alternator output (12V – 17A), which is ample for powering onboard electronics and reliably charging your battery (with an included rectifier/regulator). This is a crucial feature for electric start models, ensuring your battery is always ready.

Legendary Yamaha Durability and Corrosion Protection

Naturally, like all Yamaha outboards, the F40JEHA benefits from Yamaha’s commitment to durability. Indeed, it features a robust design with superior corrosion protection. This includes Yamaha’s unique YDC-30 aluminum alloy, a 5-stage Phaze Five™ anti-corrosive paint system, multiple sacrificial anodes, zinc coating, and high-quality marine-grade stainless steel components. All these elements are designed to withstand harsh marine environments and ensure years of reliable service. Furthermore, its pressurized oiling system minimizes engine wear for extended engine life. Plus, a freshwater flushing system allows for easy rinsing of salt and dirt without running the engine, vital for jet drives used in silty or sandy conditions.

---

Core Features of Your Yamaha F40JEHA 40 HP Four-Stroke Jet Drive Outboard

Here’s a breakdown of the key features that make the Yamaha F40JEHA an outstanding choice:

Engine Performance and Technology

• 40 Horsepower (Powerhead) / 30 HP (Jet Pump): While rated at 40 HP, the 30 HP at the jet pump delivers effective thrust for shallow-water applications, providing strong performance where it matters most.
• Smooth 747cc Three-Cylinder SOHC Engine: The 747cc, three-cylinder, SOHC (Single Overhead Camshaft) engine provides a compact, lightweight design that delivers consistent, smooth, and quiet power with minimal vibration.
• Electronic Fuel Injection (EFI): The multi-point EFI system ensures dependable “turn-key” starting, enhanced fuel efficiency, and excellent throttle response in all conditions.
• Variable Trolling RPM Switch (VTS) Compatibility: The F40JEHA offers the option of variable trolling via an optional Multi-Function Tiller handle, allowing fine-tuning of trolling speeds in 50-RPM increments.

Jet Drive Specifics

• Prop-Free Operation: No propeller or lower unit extending below the hull, allowing access to extremely shallow waters (rocky rivers, shoals, rapids).
• Enhanced Maneuverability: Jet drives offer exceptional maneuverability, allowing for tighter turns and precise control, particularly in challenging river currents.

Starting and Control Systems

• Electric Start: The engine features a convenient and reliable electric start system. This eliminates manual pull-starting and makes operation effortless.
• Tiller Handle Control: Equipped with Yamaha’s award-winning tiller handle, it offers direct control over steering and throttle. It also includes the Variable Trolling RPM Switch (VTS) for precise trolling speed adjustments and a clear F-N-R (Forward, Neutral, Reverse) gear shift.
• Nitro-Assist Tilt System: This feature makes tilting the outboard up or down almost effortless, improving ease of use for navigating very shallow water or trailering.

Shaft Length and Weight

• Long (20-inch) Shaft: The “L” in F40JEHA signifies a 20-inch (Long Shaft) length (approx. 508 mm transom length). This is essential for proper jet pump depth on boats with higher transoms.
• Lightweight and Compact Design: Weighing approximately 103 kg (227 lbs), this is a very competitive weight for a 40 HP (30HP jet) electric start, EFI, three-cylinder, long-shaft model with tiller control, offering an excellent power-to-weight ratio.

Electrical and Charging Capabilities

• High-Output Alternator (16-17 Amps): The F40JEHA features a powerful 16-17 amp alternator output (12V – 17A) with a rectifier/regulator. This ensures reliable battery charging and ample power for onboard electronics, even at lower RPMs.

Durability and Environmental Compliance

• Legendary Yamaha Reliability and Corrosion Protection: Built with Yamaha’s renowned quality, the F40JEHA features a robust design and superior corrosion protection (YDC-30 alloy, 5-stage Phaze Five™ paint process, multiple sacrificial anodes, stainless steel components) to ensure long-term durability in various marine environments. It also includes a freshwater flushing system for easy rinsing, particularly beneficial for jet pumps that ingest more sediment.
• CARB 3-Star Rating: The F40JEHA holds a 3-Star C.A.R.B. (California Air Resources Board) rating, indicating ultra-low emissions and compliance with stringent environmental standards.

---

Ideal Applications for Your Yamaha F40JEHA 40 HP Jet Drive Outboard

The Yamaha F40JEHA is a specialized and excellent choice for a specific range of craft designed for extreme shallow water operation.

River Boats and Jon Boats (Especially for Rocky/Shallow Rivers)

Specifically, this is the quintessential engine for navigating shallow, rocky, or whitewater rivers. Indeed, its prop-free design eliminates the risk of propeller damage from submerged obstacles, allowing access to prime fishing and hunting grounds typically unreachable by conventional outboards.

Flat-Bottom Skiffs and Flats Boats

Likewise, for anglers targeting skinny water fisheries where even a few inches can make a difference, the F40JEHA allows them to run across extremely shallow flats and get to fish others can’t.

Rescue and Utility Boats (for Flood/Shallow Water)

Furthermore, its ability to operate in minimal depths makes it invaluable for search and rescue operations, survey work, or utility transport in flooded areas or very shallow waterways.

Small Houseboats / Utility Boats (River Use)

Additionally, for compact houseboats or utility boats used on shallow rivers, the F40JEHA offers reliable and efficient power with straightforward tiller operation.

---

Yamaha’s Unwavering Commitment to Quality and Performance

Choosing a Yamaha F40JEHA means more. You’re not just purchasing a powerful, versatile outboard motor. Instead, you’re investing in a meticulously engineered piece of marine equipment. It’s designed for robust power, effortless electric start operation, precise tiller control, and long-term reliability, specifically tailored for the most challenging shallow water environments. Yamaha’s decades of innovation and craftsmanship are evident in every aspect of the F40JEHA. This ranges from its smooth, quiet, three-cylinder operation to its outstanding fuel economy and renowned durability. Ultimately, the F40JEHA embodies Yamaha’s promise. It delivers a superior boating experience. It ensures peace of mind and countless hours of exploration in areas previously inaccessible.

---

Technical Specifications (Approximate – Always Verify with Official Yamaha Resources for the specific model year)

• Model Name: F40JEHA
• Engine Type: 4-Stroke, SOHC, In-line 3-Cylinder
• Horsepower (Powerhead): 40 HP
• Horsepower (Jet Pump): 30 HP @ 5500 RPM
• Displacement: 747 cc (45.6 ci)
• Bore x Stroke: 65 x 75 mm (2.56 x 2.95 in.)
• Full Throttle RPM Range: 5000 – 6000 RPM
• Fuel Induction System: Electronic Fuel Injection (EFI)
• Starting System: Electric
• Ignition System: CDI Microcomputer (or TCI Microcomputer)
• Alternator Output: 16-17 Amps (12V – 17A, with rectifier/regulator)
• Lubrication System: Wet Sump (pressurized oil delivery system)
• Engine Oil Capacity: 1.7 L (1.8 qt)
• Gear Ratio: Direct Drive (Jet Pump)
• Gear Shift: F-N-R (Forward, Neutral, Reverse)
• Shaft Length: 20 inches (Long Shaft) – approx. 508 mm (20 in) transom length
• Trim & Tilt System: Nitro-Assist Tilt (manual with assist)
• Recommended Fuel: Regular Unleaded (Minimum Pump Octane 87)
• Recommended Fuel Filtration: Yamaha 10-Micron Fuel/Water Separating Filter (external, recommended for extended use)
• C.A.R.B. Rating: 3-Star (Ultra Low Emission)
• Exhaust: Through Jet Nozzle (for quiet operation)
• Weight (Dry): Approximately 103 kg (227 lbs)
• Steering: Tiller Handle (40-45° from center, either direction)
• Standard Features: Electric Start, Nitro-Assist Tilt, Multi-Function Tiller Handle (with optional VTS), EFI, Freshwater Flushing System, Robust Corrosion Protection.
• Typical Color: Yamaha Gray

---

Ready to explore waters others can’t with a powerful, versatile, and dependable 40 HP (30 HP Jet) outboard? It comes with the convenience of electric start and a long shaft, all controlled by a responsive tiller. Invest in the Yamaha F40JEHA 40 HP Four-Stroke Jet Drive Outboard Motor today. Discover the enhanced freedom. Experience quiet, smooth, and efficient operation, all backed by Yamaha’s trusted quality. Ultimately, make your next adventure on the water truly limitless.