Yamaha Outboards 8HP | F8SMHB
Yamaha F8SMHB 8 HP Four-Stroke Outboard: Powerful, Portable, and Refined
The Yamaha Outboards 8HP | F8SMHB.
Are you seeking a highly capable and exceptionally portable outboard that delivers robust power, smooth operation, and Yamaha’s renowned four-stroke efficiency for your small boat? Do you need a motor that is easy to start, transport, and offers refined features for extended use?
Shop the Yamaha F8SMHB 8HP 4-stroke outboard with 15″ short shaft, manual start, and tiller handle. Features 87lbs twin-cylinder design, integrated/external fuel tank option & on-side storage. Ideal for tenders, jon boats, kickers. Powerful & reliable.
The Yamaha F8SMHB 8 HP Four-Stroke Outboard Motor is an outstanding choice for a diverse range of applications, including larger tenders, small fishing boats, jon boats, and even as a reliable kicker for larger multi-species boats, where a short shaft and a balance of power and convenience are paramount.
Indeed, the F8SMHB stands out as a powerful and user-friendly outboard, providing a robust 8 horsepower from its 212cc two-cylinder engine, all in a convenient 15-inch short shaft configuration. Crucially, it features a simple and reliable manual start, complemented by a newly designed, shorter tiller handle for enhanced comfort and control. Moreover, despite its significant power output, it remains remarkably lightweight at approximately 87 pounds (39 kg), integrating Yamaha’s innovative oil retention system for hassle-free, leak-free on-side storage. Furthermore, it offers the dual advantage of an integrated fuel tank with the option to connect an external one for extended range. Ultimately, the F8SMHB delivers whisper-quiet, smooth, and highly efficient performance, making it a truly versatile and dependable power source for any boater seeking a premium portable experience with extra muscle.
Decoding the F8SMHB Model Code: Power, Portability, and Refinements
The “SMHB” in the Yamaha F8SMHB model designation precisely defines its characteristics:
- S: Short Shaft (typically 15 inches or 435 mm / 17.1 inches). This length is specifically designed for smaller boats with low transoms, ensuring optimal propeller depth and performance.
- M: Manual Start. This signifies that the engine is started using a traditional pull cord.
- H: Tiller Handle. This indicates that the engine is controlled directly via the tiller handle, which integrates throttle and steering functions.
- B: (This suffix often denotes a specific generation or series within the F8 lineup, indicating updates or refinements, such as the new shorter tiller handle design).
Therefore, the F8SMHB is meticulously engineered for boaters who prioritize substantial portable power, straightforward manual operation, and direct, hands-on control of their small craft, benefiting from both integrated convenience and flexible fueling options.
Why the Yamaha F8SMHB Excels: Robust Power and Smart Design
For boaters who require a genuinely portable yet more powerful outboard than the 6 HP models, the Yamaha F8SMHB truly shines.
Powerful and Efficient Engine
Primarily, the F8SMHB is driven by a 212cc SOHC (Single Overhead Camshaft) two-cylinder four-stroke engine. This larger displacement (7.5% more than its previous design) delivers a robust 8 horsepower at the prop shaft, providing significant thrust for better acceleration and faster speeds, even when carrying loads. This makes it ideal for more demanding small boat applications.
Optimal Power-to-Weight Ratio
Crucially, weighing in at just 87 pounds (39 kg), the F8SMHB offers an impressive power-to-weight ratio for an 8 HP outboard. This balance ensures it’s powerful enough to get the job done, yet remains manageable for carrying, mounting, and removing from your boat.
Smart Storage and Portability Features
Moreover, a standout feature carried over from other Yamaha portables is its oil retention system for on-side storage. This ingenious design allows the engine to be laid down on its front, left, or right side without oil leakage, eliminating concerns about messy spills in a car trunk, boat locker, or garage. It also includes newly designed built-in front and rear carry handles and resting pads for enhanced convenience. The new shorter tiller handle also folds back tighter to the cowl for more secure and compact storage.
Flexible Fueling Options for Extended Range
A significant advantage of the F8SMHB is its dual fuel system. It features a convenient built-in 0.29-gallon (1.1-liter) see-through fuel tank, allowing you to easily monitor fuel levels. Crucially, it also includes a switchable connection for an optional external fuel tank (e.g., a 3.1-gallon tank). This provides excellent extended range for longer excursions, eliminating the need for frequent refueling and offering substantial operational flexibility.
Effortless Manual Starting
Despite being a manual start, the F8SMHB features an ergonomic, easy-grip starter handle with a built-in automatic decompression device. This system efficiently releases cylinder pressure during cranking, significantly reducing the effort required for quick and reliable pull starts. An auxiliary prime pump located under the cowling further ensures smooth starts, even after periods of long storage.
User-Friendly Tiller Control with F-N-R and New Design
The F8SMHB is equipped with a comfortable, newly designed shorter tiller handle that includes a twist-grip throttle for precise speed control. This shorter handle makes operation more comfortable and improves storage compactness. Its 43-degree steering angle (from center, either direction) provides exceptional maneuverability, making tight turns and docking simple. It also features a clear Forward-Neutral-Reverse (F-N-R) gear shift, offering precise control and ease of handling.
Clean, Smooth, and Efficient Four-Stroke Power
The F8SMHB features a 212cc two-cylinder, SOHC four-stroke engine. This design ensures exceptionally quiet, smooth, and fuel-efficient operation with ultra-low emissions. It boasts a 3-Star C.A.R.B. (California Air Resources Board) rating, signifying its environmentally friendly performance and compliance with stringent emissions standards in all 50 states. Its streamlined intake and intake silencer contribute to minimum noise and maximum power.
High-Output Alternator (Optional Kit)
The F8SMHB offers a solid 6-amp alternator output, which can power small electronics or charge a battery (requires an optional charging kit). This is a valuable feature for extended use or if you have basic onboard electrical needs.
Legendary Yamaha Durability and Corrosion Protection
Naturally, like all Yamaha outboards, the F8SMHB benefits from Yamaha’s commitment to durability. It features a robust design with superior corrosion protection, including Yamaha’s unique YDC-30 aluminum alloy, a 5-stage Phaze Five™ paint process, zinc coating, and high-quality marine-grade stainless steel components, all designed to withstand harsh marine environments and ensure years of reliable service. Its pressurized oiling system further minimizes engine wear for extended engine life. A freshwater flushing system allows for easy rinsing of salt and dirt without running the engine.
Core Features of Your Yamaha F8SMHB 8 HP Four-Stroke Outboard
8 Horsepower (Prop Shaft)
Delivering a robust 8 horsepower at the prop shaft (at 5500 RPM), the F8SMHB provides significant thrust for propelling larger tenders, small aluminum boats, and even serving as a reliable kicker for bigger multi-species boats.
Manual Start
The engine features a manual pull-start system with an automatic decompression device and auxiliary priming for consistently easy and reliable starting.
Tiller Handle Control (New Shorter Design)
Equipped with a newly designed shorter tiller handle, it offers direct, comfortable control over steering and throttle. It also features a 43-degree steering angle (from center, either direction) for excellent maneuverability and a clear F-N-R (Forward, Neutral, Reverse) gear shift.
Short (15-inch) Shaft
The “S” in F8SMHB signifies a 15-inch (Short Shaft) length (approx. 435 mm / 17.1 inches transom length), ideal for smaller boats with low transoms.
Lightweight & Compact Design
Weighing approximately 87 lbs (39 kg), this is a remarkably lightweight 8 HP outboard for a twin-cylinder model. Its compact size, built-in front and rear carry handles, and resting pads make it incredibly easy to transport, mount, and store.
Oil Retention System for On-Side Storage
Yamaha’s innovative oil retention system prevents oil leakage, allowing the engine to be stored safely on its front, right, or left side without mess or damage to the cowling, enhancing portability and convenience.
Integrated and External Fuel Tank Capability
Features a 0.29-gallon (1.1-liter) internal see-through fuel tank and the option to switch to an external fuel tank (connection tap included) for extended range and convenience.
Smooth 212cc Two-Cylinder SOHC Engine
The 212cc, two-cylinder, SOHC (Single Overhead Camshaft) engine delivers consistent, smooth, and quiet power with minimal vibration for a pleasant boating experience.
Carbureted Fuel Induction with Acceleration Pump
The carbureted fuel induction system provides simple and reliable fuel delivery, and an acceleration pump ensures responsive power when you need it, such as during rapid throttle advance.
Alternator Output (6 Amps)
Capable of producing a solid 6 amps of power for charging batteries or running small electronics, although an optional charging kit is typically required for full utilization.
Manual Trim & Tilt System with Shallow Water Drive
The F8SMHB features a manual trim and tilt system with multiple trim positions and a 71° tilt range, allowing the operator to manually adjust the engine’s angle for optimal performance and lift it for shallow water operation or trailering. Yamaha’s Shallow Water Drive system protects the propeller and lower unit in skinny water.
Legendary Yamaha Reliability and Corrosion Protection
Built with Yamaha’s renowned quality, the F8SMHB features a robust design and superior corrosion protection (YDC-30 alloy, 5-stage Phaze Five™ paint process, zinc coating, stainless steel components) to ensure long-term durability in various marine environments. It also includes a freshwater flushing system.
CARB 3-Star Rating
The F8SMHB holds a 3-Star C.A.R.B. (California Air Resources Board) rating, indicating ultra-low emissions and compliance with stringent environmental standards.
Perfect Applications for Your Yamaha F8SMHB 8 HP Outboard
The Yamaha F8SMHB is an excellent choice for a variety of small to medium-sized craft where substantial portable power, ease of use, and versatility are essential, particularly with a short shaft:
- Larger Tenders and Inflatable Boats: Indeed, its power, portability, and F-N-R shifting make it an ideal primary or auxiliary motor for getting ashore quickly or for longer runs.
- Small to Medium Aluminum Fishing Boats (e.g., Jon Boats, Small V-Hulls): Furthermore, it provides robust and efficient propulsion for fishing in lakes, rivers, and calm bays, offering enough power for faster trolling, getting to distant spots, or handling light currents.
- Multi-species Fishing Boats (as a Kicker): Crucially, the F8SMHB is a very popular choice as a “kicker” motor for larger fishing boats, providing quiet, fuel-efficient trolling power that larger main engines cannot match.
- Small Utility Boats: Moreover, it’s excellent for various light-duty utility tasks on ponds, lakes, or protected waters, where reliable power is needed.
- Canoes and Kayaks (with appropriate transom mounts): For larger, more stable canoes or kayaks that can handle the weight and power, the F8SMHB offers significant thrust.
Yamaha Outboards 8HP | F8SMHB Unwavering Commitment to Quality and Performance
Choosing a Yamaha F8SMHB means more. You’re not just purchasing a portable outboard motor. Instead, you’re investing in a meticulously engineered piece of marine equipment designed for robust power, effortless operation, and long-term reliability. Yamaha’s decades of innovation and craftsmanship are evident in every aspect of the F8SMHB, from its smooth, quiet, twin-cylinder operation to its outstanding fuel economy and renowned durability. Ultimately, the F8SMHB embodies Yamaha’s promise to deliver a superior boating experience, ensuring peace of mind and countless hours of enjoyment on the water.
Technical Specifications Yamaha Outboards 8HP | F8SMHB (Approximate – Always Verify with Official Yamaha Resources for the specific model year)
- Model Name: F8SMHB
- Engine Type: 4-Stroke, SOHC, In-line 2-Cylinder
- Horsepower (Prop Shaft): 8 HP @ 5500 RPM
- Displacement: 212 cc (12.9 ci)
- Bore x Stroke: 56 x 43 mm (2.20 x 1.70 in.)
- Full Throttle RPM Range: 5000 – 6000 RPM
- Fuel Induction System: Carburetor (with acceleration pump)
- Starting System: Manual (with auto decompression)
- Ignition System: CDI Microcomputer
- Alternator Output: 6 Amps
- Lubrication System: Wet Sump (pressurized oil delivery system)
- Engine Oil Capacity: 0.8 L (0.85 qt)
- Gear Ratio: 2.08:1 (27:13)
- Gear Shift: F-N-R (Forward, Neutral, Reverse)
- Shaft Length: 15 inches (Short Shaft) – approx. 435 mm (17.1 in) transom length
- Trim & Tilt System: Manual Tilt (4 positions, 71° tilt range, Shallow Water Drive)
- 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 Propeller (for quiet operation)
- Weight (Dry): Approximately 87 lbs (39 kg)
- Steering: Tiller Handle (New Shorter Design, 43° from center, either direction)
- Standard Features: Integrated 1.1 L (0.29 gal) see-through fuel tank, External fuel tank tap, Oil Retention System for On-Side Storage, Front and Rear Carry Handles, Resting Pads, Automatic Decompression for easy starting, Aluminum Propeller, Freshwater Flushing System.
- Typical Color: Yamaha Gray
Ready to elevate your small boat’s performance with a powerful, versatile, and dependable 8 HP outboard? Invest in the Yamaha F8SMHB 8 HP Four-Stroke Outboard Motor today. Discover the enhanced power. Experience quiet, smooth, and efficient operation with flexible fueling options, all backed by Yamaha’s trusted quality. Ultimately, make your next adventure on the water more capable and enjoyable.






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