The newly redesigned BF40 are compact and full of advanced features, offering the lightest weight and highest speed in their class
40hp – 4 stroke engine
3 cylinders – 808cm³
Short or Long Shaft
Short shaft: 416mm
Long shaft: 521mm
From 96 kg
The BF40 are technologically advanced lightweight outboard engines with excellent power-to-weight ratio, powerful acceleration and impressive fuel-efficiency.
Honda BLAST™ hole shot technology with PGM-Fi electronic fuel injection delivers instant acceleration to get you up on to the plane as quickly as possible. It does this by using improved accurate ignition timing, which develops more torque at low rpm so you can rapidly reach cruising speed.
Our unique lean-burn control ECOmo system adjusts the fuel to air ratio depending on load and speed to improve your fuel consumption when cruising. When your boat is up on the plane and cruising (in the green area illustrated above ) the PGM-FI system can adjust the air/fuel ratio up to 20% by making the mixture leaner.
Wearing a new design, the new BF40 and BF50 have been developed for performance. The gear case is extremely hydrodynamic to reduce water resistance and take the advantage of all the engine power.
The High Output alternator delivers a solid 22 amps, which will keep a battery with a 17 amp charging capacity in top condition; and it’ll keep all your on board electronic equipment powered up too.
The gear case is extremely hydrodynamic and super sleek. The gears within are machined to fine tolerances, reducing friction and contributing to the overall performance and superb fuel economy at high speeds.
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.
Honda outboard alert systems monitor critical engine functions including engine temperature, oil pressure, fuel injection and charging, and will alert the boat user to abnormal operating conditions.
The BF40 and the BF50 are light, compact 808cc three-cylinder engines, with strong torque and exciting performance.
How do we do it? By giving them PGM-Fi electronic fuel injection for easy start up, powerful acceleration and outstanding fuel economy. The long, slim inlet manifold and miniaturised electronic components save weight and space, contributing to the compact slim design.
Better performance: Add to that our unique Boosted Low Speed Torque (BLAST™) and the super efficient lean burn control of the ECOmo system, and you’ve got a very impressive combination indeed.
Both the BF40 and the BF50 are lively and responsive outboards that will provide dependable performance for water lovers whichever water they ply. Both are NMEA2000® compliant, electronic fuel injected engines with optional Trolling Control – no differences there – this outstanding range of 4 stoke engines feature a host of innovative Honda technology, in a fully new design.
| NMEA 2000 | Y |
| BLAST | Y |
| ECOmo | Y |
| Trolling Control | Y |
| Engine Type | 4st Water Cooled |
| Valves | OHC 3-Cyl. |
| Displacement (cc) | 808 |
| Bore X Stroke (mm) | 70 x 70 |
| Full Throttle Range (RPM) | 5,000-6,000 |
| Rated Power (kW (PS)) | 29.8 (40) |
| Cooling System | Water Cooled (with Thermostat) |
| Fuel Delivery | Programmed Fuel Injection |
| Ignition System | Electronic PGM-IG |
| Starting System | Electric starter |
| Exhaust System | Propeller boss |
| Gear Ratio | 2.08 |
| Propeller Rotation | Standard |
| Engine Trim and Tilt | Power Trim & Tilt or Gas Assisted |
| Electric Starter | Y |
| Alternator Output (AMP.) | 22A |
| Battery Charging Capacity (AMP.) | 17A |
| Transom Height (mm) | 521 |
| Dry Weight (kg) | 98 |
| Overall Length (mm) | 694 |
| Overall Width (mm) | 372 |
| Overall Height (mm) | 1364 |
| LRTU | With a 521mm shaft, 17A battery charge and power trim and tilt. |
| SRTU | With a 416mm shaft, 17A battery charge and power trim and tilt. |
If you’re looking to purchase any of these products your local dealer would love to hear from you. Visit our dealer locator below to find your closest dealership.
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