Honda’s BF2.3 is one of the world’s lightest four-stroke outboards, weighing under 30 pounds — light enough to rival two-stroke 2HP engines and electric motors, but without the battery. Despite that light weight, it delivers 15% more power than its predecessor and a 12% larger internal fuel tank, giving about an hour of run time at full throttle. A front-mounted carrying handle, fold-down tiller, and single-unit removable fuel tank make it especially easy to transport and install on small boats, dinghies, and car-toppers.

Controls are designed for precision and comfort, including a twist-grip throttle with tensioner, 360° swivel steering for tight-space maneuverability, adjustable steering friction, and four manual trim settings. A centrifugal clutch smooths out idle and automatically engages the prop above idle speed, functioning like a neutral gear.

On the reliability side, the BF2.3 features a maintenance-free transistor ignition for easy starting, an air-cooled engine that eliminates water pump concerns, and convenient oil fill/drain and carburetor draining for storage. It’s backed by Honda’s transferable, non-declining True 5 Warranty and Honda’s multi-layered corrosion protection system, plus practical touches like dual lockable transom clamps and a built-in keeper for spare cotter and shear pins.

EngineBF2.3
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°
DriveBF2.3
Gear Ratio2.42:1
Steering Angle360° pivot
EquipmentBF2.3
Propeller3-Blade Plastic
Diameter x Pitch7.25 x 4.75 inches
WarrantyBF2.3
Recreational5 years
Commercial/Rental2 years
Optional ExtendedUp to 36 months 
DimensionsBF2.3
Overall Width285 mm / 11.2 in
Transom HeightBF2.3
S Type418 mm / 16.5 in
L Type571 mm / 22.5 in
Dry WeightBF2.3
S-Type13 kg / 29.5 lbs
L-Type14 kg / 31 lbs