The BF90 offers PGM-FI for instant throttle response and optimized fuel consumption. It also features Honda exclusives like BLAST™ for strong acceleration, Lean Burn Control for superior fuel efficiency and a 3-Way Cooling System for long-lasting, durable performance.
Add it all together and you have an engine that is economical, efficient and durable — which means maximum quality time for you on the water.
Developed for Honda’s high-performance F1 sport cars, VTEC varies the lift and duration of the intake valves to provide optimum performance both at low and high rpm.
VTEC delivers at low speeds, smooth stable idling with reduction in fuel consumption, while the increased valve lift at higher speeds broadens the torque curve and top end power.
Honda’s revolutionary Boosted Low Speed Torque (BLAST™) technology boosts engine torque at low RPM under rapid acceleration.
BLAST™ traces the air/fuel ratio that results in the maximum torque for each engine revolution, while simultaneously tracing the maximum knock limit ignition timing that can be obtained using a rich air/fuel ratio in the full throttle zone and advances the ignition timing to the limit, in order to produce greater torque.
This boost in horsepower and torque at low rpm contributes to strong hole shot performance to get the hull up on plane quickly!
Along with Honda’s Programmed Fuel Injection, the BF90 incorporates Lean Burn Control technology, which allows combustion to operate on a leaner air/fuel ratio than stoichiometric air/fuel.
An O2 sensor, together with the ECM, precisely controls the air/fuel mixture for the best fuel economy at cruise setting. The mode in which lean burn control is used during cruising to achieve higher fuel economy is referred to as ECOmo (Economy Controlled Motor).
The BF90 has the best in class charging performance with a 44-amp alternator. This means your outboard is now able to charge the battery faster and power more accessories, so that you can now run that little bit of extra tech on the boat to help find the perfect catch.
Honda is wired for the future; this is why the new outboards come standard with NMEA2000 connectivity. Equipment designed to the NMEA2000 standard has the ability to share and display data, including commands and status with other compatible equipment over a single channel.
With an upgraded ECU the BF90 has the latest in Electronic Fuel Injection (EFI) technology. This ensures that fuel is delivered to the engine in a highly efficient and precisely measured manner. Meaning that the exact amount of fuel is delivered at the perfect time; this guarantees that the engine will run smoother at peak performance while also burning significantly less fuel.
|TYPE||Four-stroke SOHC 4 Cylinders|
|BORE & STROKE||73 x 89 mm|
|FULL THROTTLE RPM RANGE||5,300-6,300 RPM|
|RATED POWER||90HP @ 5,800 RPM|
|COOLING SYSTEM||Water Cooled|
|INDUCTION||Programmed Fuel Injection|
|IGNITION SYSTEM||Full Transistorised Battery Ignition|
|POWER TRIM & TILT||Standard|
|TRIM RANGE||-4° to +16°|
|EMERGENCY STOP SWITCH||Standard|
|OIL PRESSURE ALERT||Standard|
|OVERALL HEIGHT (L-TYPE)||1,566mm|
|OVERALL HEIGHT (X-TYPE)||1,693mm|
|OVERALL HEIGHT (XXL-TYPE)||n/a|
|TRANSOM HEIGHT (L-TYPE)||537mm|
|TRANSOM HEIGHT (X-TYPE)||664mm|
|TRANSOM HEIGHT (XXL-TYPE)||n/a|
|Engine Make||Honda Marine|