2.3 HP


The best things come in small packages.

And that’s especially true with Honda’s BF2.3, one of the world’s lightest four-stroke outboards. The BF2.3 is so light, it rivals many two-stroke 2HP engines and electric motors, without the battery!

But just because it’s lightweight doesn’t mean we cut back on the power. The BF2.3 features 15% more power over its predecessor. Plus we added a 12% larger internal gas tank, which provides for about one hour of operation at wide open throttle. It’s a technologically advanced design that gives you power and performance – without sacrificing portability.

Reliable, efficient 4-stroke design

World-renowned Honda quality combines proven reliability and superior fuel efficiency, with no oil mixing.

More power - without sacrificing portability

With 15% more horsepower over its predecessor, this ultra light weight powerhouse produces surprising speed and maneuverability.

Lightweight and compact

The BF2.3 is incredibly light and easy to transport. Weighing less than 30 pounds, it's the ideal engine for dinghys, car-toppers and other types of small boats.

Precise Throttle Control

A twist grip throttle allows for precise throttle control. The throttle tensioner minimizes driver fatigue.

Forced air cooled engine - no water pump worries

The air-cooled block eliminates concern over clogged water pumps and debris being sucked into the powerhead, as well as reducing maintenance.

Ultra low 3 star CARB emissions - Environmentally concious technology

Environmentally conscious technology. All Honda Marine engines exceed the highest CARB 3-Star rating to meet the rigorous California Air Resource Board's standards.

True 5 Warranty - unmatched peace of mind

Honda's True 5 Warranty is the best in the business. This transferable, non-declining warranty is the same on the first day as it is on the last.

Easy starting, maintenance free transistor ignition

Maintenance-free, high-energy output for quick and easy starts.

Easy to carry and install

A front mounted carrying handle provides superior portability and ease of installation.

360° swivel steering - added manueverability

Provides excellent maneuverability in tight areas as well as full thrust in reverse (at 180°).

Centrifugal clutch - better performance

The centrifugal clutch maintains a smooth idle and when advanced, automatically engages the prop above idle speed. It's like having a neutral position.

Convenient fold down tiller

The BF2.3's tiller folds up or down for easy stowing.

4-Front Corrosion Protection System - Fights the elements

A patented, "Double Sealed" multi-layered paint process, sacrificial anodes, stainless steel technology, and waterproof connectors enhance corrosion protection.

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Internal fuel tank - easier portability

With 12% more capacity over its predecessor, the BF2.3 now runs up to 60 minutes at full throttle on a tank of fuel. The internal tank facilitates easy removal and portability as a single unit.

Easy maintenance

Convenient oil fill and drain.

Steering friction adjustment

Allows you to adjust steering tension for ease in maneuverability.

Adjustable trim

Four manual settings ensure proper trim angle for maximum performance.

Shallow Water Drive

Allows you to run in shallow water and greatly reduces the risk of engine damage.

Propeller included

A shock resistant plastic propeller comes standard.

Carburetor drain screw for easy storage prep

Allows quick and easy draining of the carburetor's float bowl for extended storage periods.

Dual lockable transom clamps

Provides extra security when mounted to the transom.

Sheer and cotter pin keeper

The self-contained keeper stores two extra sets of cotter and sheer pins close at hand, so you'll be prepared if and when you need them.

15 and 20 inch configurations

Available in 15" or 20" configurations to meet your specific application.


Type4-Stroke OHV, 1 Cylinder/2 Valves
Displacement57.2 cc (3.49 cubic in)
Bore & Stroke45 mm x 36 mm (1.8 x 1.4 inches)
Full Throttle RPM Range5,000-6,000 RPM
Rated Power2.3HP (1.7 kW)
Cooling SystemForced Air
Ignition SystemTransistorized
CARB Rating (California)3-STAR, ultra low emission
FuelUnleaded 86 octane
Fuel Tank Capacity.29 US gal (1.1L)
Starting SystemRecoil
ExhaustUnder Water, Above Propeller
LubricationOil Slinger System
Trim Range4-Stage: 5°, 10°,15°, 20°
Tilt Range75°


Gear Ratio2.42:1
Steering Angle360° pivot
Propeller3-Blade Plastic
Diameter x Pitch7.25 x 4.75 inches


Overall Width285 mm / 11.2 in

Transom Height

S Type418 mm / 16.5 in
L Type571 mm / 22.5 in

Dry Weight

S-Type13 kg / 29.5 lbs
L-Type14 kg / 31 lbs
WARNING: California Prop 65 Information

Owner's Manuals