The most technologically-advanced, lightweight, quietest 4-Stroke 40HP outboard engine the world has ever seen.

COMPACT INNOVATION

Not only is the design of Honda's BF40 supremely elegant, but it's also the lightest engine available in its class.

Perfect for aluminium boats and inflatables, it combines class-leading lightweight, compact packaging, enhanced with PGM-FI electronic fuel injection delivering the precise amount of fuel/air to each cylinder. The result is easy starts and instant throttle response with superior fuel efficiency.

Throw in Honda's original Boosted Low Speed Torque (BLAST™) air/fuel ratio and ignition-timing technology, and lean burn control, and your 'hole shot' is vastly improved as more horsepower gets the hull up on plane faster.

ECOMO

Along with Honda’s Programmed Fuel Injection, the BF40 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).

NMEA2000 COMPATIBLE

The BF40 can communicate with onboard electronics to deliver a wide-range of information to head-unit displays.

When networked with a Lowrance HDS unit, for example, engine data such as speed, revs, temperature, fuel usage and other data can be displayed on the unit’s screen.

The BF40's Engine Alert System also uses visual, audio and RPM reduction circuits to alert the operator of overheating, low oil PSI and over-revving, preventing engine damage.

PERFECT FOR A DAY OUT ON THE WATER

Honda’s BF40 engine features the lightweight Mikuni long tube intake track system, which helps build low-end torque.

Another great advantage for anglers, Honda engineers reduced the trolling speed of the BF40 from 950RPM to 800RPM.

Finally, there's always plenty of electric power with the BF40. Honda’s innovative technology enables this engine to output nearly twice as many charging amps as its competitors.


SPECIFICATIONS

ENGINE

TYPE4-stroke SOHC 3-cylinders / 6-valves
DISPLACEMENT808cc
BORE & STROKE70 x 70 mm
FULL THROTTLE RPM RANGE5,000-6,000 RPM
RATED POWER40HP @ 5,500 RPM
COOLING SYSTEMWater Cooled
INDUCTIONProgrammed Fuel Injection (PGM-FI)
IGNITION SYSTEMTransistorised battery ignition
STARTING SYSTEMElectric
EXHAUSTThrough prop
ALTERNATOR17-Amp
POWER TRIM & TILTAvailable
GAS-ASSISTED TILTAvailable
TRIM RANGE-4° to +16°
TILT RANGE63°


SAFETY FEATURES

EMERGENCY STOP SWITCH  Standard
OIL PRESSURE ALERT  Standard
TEMPERATURE ALERT  Standard
REV-LIMITER  Standard
SPEEDOMETER PICKUP  Standard


DRIVE

GEAR RATIO  2.08:1
GEAR SHIFT  F-N-R
PROPELLER  3-blade aluminium
DIAMETER X PITCH (S-TYPE)  n/a
DIAMETER X PITCH (L-TYPE)  11-1/4 x 13 Inches
DIAMETER X PITCH (X-TYPE)  n/a


DIMENSIONS

OVERALL LENGTH WITH
TILLER HANDLE
  794mm
OVERALL LENGTH WITH R/C   694mm
OVERALL WIDTH   372mm
OVERALL HEIGHT (S-TYPE)   n/a
OVERALL HEIGHT (L-TYPE)   1,365mm
OVERALL HEIGHT (X-TYPE)   n/a
TRANSOM HEIGHT (S-TYPE)   n/a
TRANSOM HEIGHT (L-TYPE)   521mm
TRANSOM HEIGHT (X-TYPE)   n/a
DRY WEIGHTS (L-TYPE)   98kg
DRY WEIGHTS (X-TYPE)   n/a