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Honda Marine Engines: Model Overview
Honda continually improves its marine engine line by incorporating technologies from its highly advanced automotive and racing heritage. In order to maximize power output and durability, many Honda Marine outboards include exclusive technological features found in the company's most popular automobile engines, including the Honda Accord, Fit, Pilot, Ridgeline, Odyssey, CR-V, and Civic.
Engineers work to ensure that every Honda Marine outboard model – ranging from 2 to 250 horsepower – sets the standard for fuel efficiency and ease of operation while staying true to the core Honda attributes of durability, quality, reliability and quiet operation.
Honda Marine Engine Models: Comprehensive Lineup
Honda BF2: A Mini Powerhouse
Weighing only 27 pounds, Honda Marine's BF2 is the lightest four-stroke outboard motor in America. The single-cylinder, 57cc engine incorporates a number of innovative features, including Shallow Water Drive, Twist Grip Throttle, Front-Mount Carrying Handle, and 4-Front Corrosion Protection.
The Centrifugal Clutch on the BF2 maintains a smooth idle for easy trolling, automatically engaging the propeller when the throttle is advanced. The engine also incorporates a Full Swivel Bracket designed to enhance overall durability by reducing vibration to the tiller handle. And since the BF2 is air-cooled, boaters no longer need to worry about debris being sucked into the power head.
Honda BF5: Portable Power
Honda Marine's 60-pound BF5 is lightweight, compact and outfitted with a front-mount carrying handle for easy transport. Its 127cc engine features a water-cooled, single-cylinder design for excellent low- to mid-range power, while a Digital CD Ignition delivers high-energy output for quick and easy starts.
A Twist Grip Throttle allows for precise throttle control, and driver fatigue is minimized by a unique Throttle Tensioner. The BF5 also incorporates full Forward-Neutral-Reverse (F-N-R) Shifting with neutral-in-start protection, as well as a Full Swivel Bracket designed to enhance overall durability by reducing vibration to the tiller handle.
Honda BF8 and BF9.9: Lightweight, Dependable Power
Honda Marine's BF8 and BF9.9 outboard engines offer boaters dependable performance in portable packages, while their lightweight profile and innovative features make the motors simple to transport and use.
Auto-Start Enrichment and PGM Ignition ensure quick starts, while tilt control and engine alert indicators are located at the operator's fingertips for quick, comfortable adjustment.
Available Power Thrust Design enhances performance and maneuverability as a 2.33:1 gear ratio and 4-blade Power Thrust propeller combine to produce additional thrust in forward and reverse. An exhaust outlet above the anti-ventilation plate allows the propeller to run in undisturbed water while in reverse, resulting in greater thrust.
Honda BF15 and BF20: The Ideal Combination of Power and Portability
At 103 pounds, Honda Marine's BF15 and BF20 weigh less than some 9.9 horsepower motors on the market. The engines' long-stroke design and 350cc displacement provide optimum torque throughout the rpm range. Additionally, an integrated carrying handle and programmed ignition are offered as standard features.
Both also are available with Power Thrust design for enhanced performance and maneuverability. A low 2.33:1 gear ratio and 4-blade Power Thrust propeller combine to produce more thrust in forward and reverse, while an exhaust outlet above the anti-ventilation plate allows the propeller to run in undisturbed water while in reverse, resulting in greater thrust.
Honda BF25 and BF30: Superior Performance in a Compact Package
Honda Marine's BF25 and BF30 combine world-renowned reliability with responsive performance in lightweight, compact packages. At just 159 pounds, the BF30 is by far the lightest engine in its class.
Honda's innovative Auto-Start Enrichment and PGM Ignition ensure quick, reliable starts, while a 3-to-3 Induction System (one carburetor per cylinder) provides instant throttle response and outstanding fuel efficiency.
Tiller throttle friction control, power tilt/trim control and engine alert indicators are located at the operator's fingertips for quick, comfortable adjustment at a glance, and a generous -4 to +12-degree trim angle provides maximum performance and handling.
Honda BF40 and BF50 EFI: Redefining Mid-Range Four-Stroke Performance
Honda Marine's BF40 and BF50 EFI provide the perfect balance of powerful acceleration and best-in-class fuel efficiency for fresh and salt water applications.
The duo's in-line 3-cylinder engine features Electronic Fuel Injection as well as several Honda-exclusive technologies. Honda's patented Boosted Low Speed Torque (BLAST) system advances ignition timing for explosive ‘hammer-down' acceleration, while Lean Burn Control adjusts the air/fuel mixture for maximum fuel efficiency at cruise.
The lightest engines in their class, the 214-pound BF40 and BF50 EFI feature a lightweight, 22-amp alternator that offers best-in-class 17-amp charging capacity for multiple electronic accessories.
Honda BF60 EFI: Performance, Technology and Fuel Efficiency
The Honda Marine BF60 EFI provides the perfect blend of powerful acceleration and best-in-class fuel efficiency for fresh and salt water boating applications.
One of the lightest engines in its class, the 239-pound BF60's 998cc, in-line 3-cylinder engine features Electronic Fuel Injection as well as several Honda-exclusive technologies. Honda's patented Boosted Low Speed Torque (BLAST) system advances ignition timing for explosive ‘hammer-down' acceleration, while Lean Burn Control adjusts the air/fuel mixture for maximum fuel efficiency at cruise.
Perfect for pontoon applications, the Power Thrust BFP60 EFI features a lightweight, 27-amp alternator with best-in-class 22-amp charging capacity for multiple electronic accessories.
Honda BF75 and BF90: Lightweight Powerhouses
The Honda Marine BF75 and BF90 outboard engines provide powerful acceleration and best-in-class fuel efficiency in both fresh and salt water.
Inspired by the engine architecture of Honda's Fit automobile, the duo's 1.5-liter, 16-valve, in-line 4-cylinder engine features Electronic Fuel Injection for easy starting and exceptional fuel economy.
Honda's patented Boosted Low Speed Torque (BLAST) system advances ignition timing during ‘hammer-down' acceleration for explosive holeshots, while a Lean Burn Control system adjusts the air/fuel mixture for maximum fuel efficiency at cruise. A 3-Way Cooling System also keeps cylinders slightly cooler than the engine block to promote long-term durability of critical components.
Performance is further improved with Honda's exclusive Variable Valve Timing and Lift Electronic Control® (VTEC® – BF90), which provides outstanding torque and power at higher rpm.
Honda BF115: Unparalleled Fuel Efficiency and Reliability
The new BF115 outboard engine, available in both 20- and 25-inch shaft models, allows boaters excellent fuel efficiency, low emissions and quiet operation via Honda's legendary four-stroke outboard engine technology.
The BF115 is derived from the inline 4-cylinder 2.4 liter dual overhead camshaft (DOHC) engine platform used in Honda's award-winning and popular Accord automobile – the largest displacement engine in its class. As a result of the outstanding performance of this engine, coupled with the advanced technologies it incorporates, the BF115 is able to produce class-leading performance with outstanding fuel efficiency and reliability.
Holeshot and acceleration are dramatically improved via the use of Honda Marine's exclusive BLAST™ system, which advances ignition spark timing to within one degree of the knock limit during ‘hammer down' acceleration. At that point, the Engine Control Module (ECM) steps in to increase injector timing, creating a more potent air/fuel mixture. In fact, the ECM receives constant input from 18 different sensors to deliver instant starts, smooth operation, strong performance and excellent fuel efficiency. Specifically, the BF115 reduces fuel consumption by 19 percent over the previous model, per Honda R&D internal testing data.
The resulting boost in available torque at low rpm contributes to a strong holeshot to get the boat up on plane quickly. The ignition spark timing is appropriately adjusted under slower throttle advancement, resulting in a leaner air/fuel mix and class-leading fuel efficiency.
Honda BF135 and BF150: Exclusive Designs and Advanced Technology
Based on the engine architecture of the incomparable Honda Accord and CR-V, Honda Marine's BF135 and BF150 offer some of the most innovative, efficient, and reliable outboard engine technology available.
The 2.4-liter, 4-cylinder engines boast Honda's exclusive Variable Valve Timing and Lift Electronic Control® (VTEC® - BF150) for impressive mid-range acceleration, and a 3-Way Cooling System keeps cylinders slightly cooler than the engine block to promote long-term durability of critical components.
Lean Burn Control adjusts the air/fuel mix to maximize power and improve fuel economy at cruise, while an on-demand 51-amp alternator keeps battery banks charged all day, even when running multiple accessories.
Honda BF200 and BF225: Superior Power and Reliable Performance
Honda Marine sets the industry standard for performance, durability, and reliability with its powerful outboard engines, the BF200 and BF225.
The 3.5-liter, 6-cylinder engines feature Variable Valve Timing and Lift Electronic Control (VTEC® - BF225) for outstanding torque at any speed, while Honda's patented Boosted Low Speed Torque (BLAST) system contributes to explosive holeshots.
Lean Burn Control automatically adjusts the air/fuel mix to maximize power and improve fuel economy at cruise, while a best-in-class on-demand 90-amp alternator keeps battery banks charged all day, even when running multiple accessories.
Honda BF250: New Flagship Engine, Advanced Technology
In 2011, Honda Marine introduces the all-new BF250 four-stroke engine, the most powerful outboard to join the Honda Marine lineup – and now the company's flagship model.
The Honda Marine BF250 incorporates a number of advanced technological innovations that contribute to the engine's high fuel economy and superior performance. The 3.6 liter VTEC® (Variable Valve Timing and Lift Electronic Control®) engine is equipped with an all-new gear case, incorporates the world's first marine direct air dual circuit induction system of its type on a production outboard (providing for cooler, denser air for better combustion than conventional under-cowl induction systems), and has a full-throttle RPM range of 5300-6300.
The design of the variable air intake system on the Honda BF250 also includes a large air-intake silencer that reduces noise. The silencing effect results from a chamber being added to the intake passage – causing sound waves to interfere with one another – creating a side branch effect that quiets noise.
Honda Marine, a division of American Honda Motor Co., Inc., markets a complete range of outboard marine engines. Its comprehensive product line is powered exclusively by four-stroke engines.
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Updated October 2011