Honda Outboard BF40 LRTU (EFI) 40Hp Long Shaft Electric Start Power Tilt with Remotes (105150)

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Honda 40hp Outboard

The new BF40 outboard engine retains it's class-leading lightweight, compact packaging, enhanced with PGM-FI electronic fuel injection, Honda’s original BLAST (Boosted Low Speed Torque) air/fuel ratio and ignition-timing technology, and lean-burn control to deliver powerful startup and acceleration together with outstanding fuel economy during cruising.

BLAST, along with a newly designed gear case and other improvements, contributes to improved acceleration and a higher top speed, while lean-burn control results in a 22% improvement in fuel economy over the previous model during cruising. Battery charging capacity has also been increased to 17 amperes—over 1.7 times that of the previous model—to achieve class-topping charging performance.

PGM-FI (Programmed Fuel Injection) is a registered Honda trademark.

BLAST (Boosted Low Speed Torque) was first employed in the BF90 (90HP), released in November 2006. Particularly during acceleration, it effectively boosts performance by adjusting the air/fuel ratio for maximum torque while advancing ignition timing to its maximum pre-knock level to increase torque under full-load conditions.

Fuel economy as measured at 80% of rated engine rpm and 57% of rated output in EPA emissions mode (Honda calculations)

BF40 Key Features

Lightweight and compact
A reduction gear is employed to achieve compact engine layout by offsetting the in-line 3-cylinder engine forward, while a long-branch plastic inlet manifold and miniaturized electronic components further contribute to the class-topping lightweight, compact design.
Fuel economy · The PGM-FI electronic fuel injection system and lean-burn control during cruising (sustained operation at engine speeds of approx. 3,000~4,500rpm) contribute to around a 22% improvement over the previous model in fuel economy while cruising. The mode in which lean-burn control is used during cruising to achieve higher fuel economy is referred to as ECOmo (Economy COntrolled Motor) mode.
Operational performance · The new engines employ BLAST (Boosted Low Speed Torque) air/fuel ratio and ignition-timing technology, in which a computer selects the optimum ignition timing for the air/fuel ratio, resulting in improved acceleration.
A new streamlined gear case for reduced hydrodynamic drag, compact engine layout, and other lightweight technologies contribute to maximum speeds at the top of their class for small-displacement engines.
A large splash plate helps reduce water splash during operation.
Environmental performance · Noise levels have been reduced by 1.0dB over the previous model through such improvements as a longer exhaust pipe and an optimized rib design inside the upper portion of the extension case, for improved rigidity.
The new BF40 exhibits outstanding environmental performance, exceeding 2008 CARB (U.S. California Air Resources Board) emissions standards—the most stringent in the world. It also significantly exceeds both U.S. EPA (Environmental Protection Agency) standards for 2006 and domestic Japanese voluntary regulations.
The new model is 93.6% recyclable (Honda calculations).
Durability and reliability · A set of four warning lamps alerts the operator in the event of low oil pressure, overheating, charging malfunction, or PGM-FI electronic fuel injection system malfunction.
Waterproofing of the gear case has been enhanced with an optimized shift rod seal and other improvements.
Battery charging capacity · The new alternator is fitted with a multi-polar ACG featuring more generating coils than the previous model to achieve a 17-ampere battery charging capacity—at the top of its class for outboard engines with the same output.
Easy to install and maintain · As with the previous models, the new BF40 can be mated to a wide range of boat types due to it's lightweight, compact design.
The new model is compatible with Honda’s latest general purpose engine diagnostic systems.
A new one-touch plastic cap permits easy inspection of anode wear inside the engine, for significantly improved ease of maintenance.
Design · Like Honda’s larger outboard engines, the BF40 now features a striking ‘wing form’ design,emphasizing the design concept of slimness and strength.

Technical

Type of 4-stroke: OHC 3 Cylinders
Rated power hp (kW): 40 (29.4)
Full Throttle RPM Range: 5000-6000
Carburation: PGM-FI Fuel Injection
Controls: Remote control
Starting System: Electric plus Electronic Ignition
Dimensions (l,w - mm): 694,372
Transom Height (mm): 521
Dry Weight (kg): 98
6 Year Domestic Warranty: Standard*

*Domestic use only, subject to following the maintenance schedule.