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by Honda
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Exceptional power & performance

The BF40 is packed with power and exceptional torque. Featuring a unique set of Honda-Exclusive technologies, the BF40 will easily power all of your adventures.

Peace of mind

World's largest engine manufacturer


Honda exclusive technology

Engineered for life

More time on the water

Unmatched performance

Superior power

Lean Burn Control

Honda’s Lean Burn Control technology, ECOmo, permits combustion to operate on a leaner air/fuel ratio. Sensors precisely measure the air/fuel mixture, ensuring best fuel economy in cruising mode. (BF40 - BF250).

Trolling control

Trolling Control is available from BF40 - BF150 & BF200-250 (DBW only). Available on selected Honda outboards, engine speed can be controlled in increments of 50RPM from idle speed to 1000RPM/1100RPM (model dependent). A switch required to activate this feature is available through your authorised Honda Marine dealer as an optional accessory. (BF40 - BF150)

Dry Weight 98kg
Rated Power 40HP @ 5,500 RPM
Engine Type 4-stroke SOHC
Starting System Electric
Exhaust Through prop
Gear Ratio 2.08:1
Displacement 808cc
Cylinders 3
Valves 6
Bore & Stroke (mm) 70 x 70
Full Throttle Range (rpm) 5,000-6,000
Cooling System Water Cooled
Carburation Fuel Injection
Ignition System Transistorised battery ignition