Couple on a side facing boat with Honda BF engine in sea location.

Ultimate performance

The BF40 and the BF50 are light, compact 808cc three-cylinder engines, with strong torque and exciting features to suit a variety of boats.

Works hard and plays harder

Both the BF40 and the BF50 are lively and responsive outboards that provide dependable performance for water lovers everywhere.

Range and speed icon
Fine tuned
Power trim and tilt allows you to find the sweet spot and tune the boat for better economy and for a better performance.
Emissions icon
Better fuel economy
Trusted technology goes into the electronic fuel injection system, delivering better economy.
View icon
Top notch performance
The combination of the Boosted Low Speed Torque (BLAST™) and the ECOmo system brings powerful acceleration and great fuel efficiency.

Key specifications

Cylinders

3

Displacement

808 cc

Valves

6

Engine type

OHC

See Full Specs
Couple on a rear facing Highfield boat with BF50 engine in ocean location.

Technologies

Discover the BF40 and BF50 in detail and find out how they provide some of the best boating experiences.

Gentleman on a boat with a B40 engine in coastal location.

Instant Acceleration

Get instant acceleration with Honda BLAST™ hole shot technology. Honda BLAST™ works by using improved ignition timing, so it develops more torque at a lower rpm. This means you can reach cruising speed within seconds.

Gentleman on a boat with a B40 engine in coastal location.

Cruise smarter

Our lean-burn control ECOmo system optimises fuel efficiency by adjusting the fuel-to-air ratio based on load and speed while cruising. When your boat is on plane, the PGM-FI system can make the mixture up to 20% leaner for even better fuel economy.

Gentleman on a boat with a B40 engine in coastal location.

Plug and play electronics

The engines are NMEA2000® compliant, which makes it compatible with all other NMEA2000® compliant electronic devices – like navigation and fishfinder systems. Engine data rpm, temperature and fuel consumption can be displayed through multi-functional gauges.

Gentleman on a boat with a B40 engine in coastal location.

No more worrying

Equipped with advanced protection features, including an overheat alert system and rev-limiter to prevent engine damage during operation, the BF40-50 outboards have you covered. These engines also feature a freshwater flushing port, allowing easy maintenance to keep the motor running smoothly and reliably. With these built-in safety systems, you can explore the water with confidence, knowing your engine is well-protected.

Close up of Honda engines on the backs of boats in water location.

A watertight warranty

Honda Marine offers superior saltwater protection through advanced anti-corrosion technology and expert servicing from our trained technicians. Our Honda warranty ensures your coverage is as strong on the last day as it is on the first.