Honda 40 HP 4-Stroke Marine Outboard Engine

Honda's 40HP is the right choice for bay boats, pontoons and aluminum fishing boats. You can always depend on an easy start with Honda's exclusive autostart enrichment, while 3 to 3 induction guarantees instant throttle response. And because it's a Honda, you can expect long term durability and clean, quiet operation.

If you're looking for easy starting and a prompt response, Honda's 40HP is your engine.

Honda Advantage - downloadable PDF

Specifications

ENGINE
	Type		4-Stroke OHC 3 Cylinders
	Displacement		808 cc (49.3 cubic inches)
	Bore & Stroke		70 x 70 mm (2.76 x 2.76 inches)
	Full Throttle RPM Range		5000-6000 RPM
	HP Rating @ Propshaft		40HP @ 5500 RPM
	Induction Scavenging		SOHC
	Valves per Cylinder		2
	Fuel Delivery		3 Venturi
	Ignition System		Programmed Ignition System
	Starting System		Electric
	Lubrication		Wet Sump
	Cooling System		Water Cooled
	Alternator		Electric 10 Amps (126 Watts)
	Trim Range		-4° to +12°
	Tilt Range		67°
DRIVE
	Gear Ratio		2.08:1 (26/33 x 14/23)
	Gear Shift		F-N-R
	Propeller		Optional
DIMENSIONS
	Recommended Transom Height		(L) 508 mm/20 inches
	Dry Weight Tiller		(L) 96.5 kg - 212 lbs.
	Dry Weight Tiller (PPT)		(L) 93 kg - 205 lbs.

Features

Packing maximum power and easy handling into a lightweight and compact design, Honda Marine’s BF40 is ideal for pontoon, shallow-draft walleye and bass boats.

The engine’s Auto Start Enrichment System ensures a quick and easy start, while the 3-to-3 induction system affords outstanding fuel economy in all conditions. And an exclusive Non-Linear Mounting system ensures a quiet ride every time.

Learn more about the BF40’s features. To see the fuel-efficient 3-to-3 induction feature, play the video.

To see how the innovative offset crankshaft works, play the ‘offset’ video.

The BF40 from Honda Marine…lightweight power unleashed.

4-Stroke Design World-renowned Honda quality combines proven reliability and superior fuel efficiency, with no oil mixing.

Center Mount Tiller A new ergonomically designed tiller handle is 8" longer and angled 5" higher for improved handling. A front-mounted shift lever, power tilt and trim switch, and engine alert lamps provide added convenience.

Power Trim/Tilt Allows user to trim the unit for maximum performance and handling. Trim Range: - 4° to +12° Tilt Range: 67°

3 to 3 Induction A compact 3-cylinder, 3-carburetor design utilizes one carburetor per cylinder. More responsive than competitive throttle bodies with long intake runners, the design provides smooth, quiet operation, along with instant throttle response and performance.

Offset Crankshaft Design The BF40’s exclusive crankshaft design locates the powerhead directly over the transom pivot point to reduce vibration and improve performance and handling.

PGM Ignition A reliable microprocessor accurately controls ignition timing during start-up and across the entire RPM range, providing optimum overall operation.

Auto Start Enrichment (ASE) Just like a fuel injection system, Auto Start Enrichment automatically adjusts the air-fuel mixture for quick, easy starting and warm-ups.

Non-Linear Mounting System Patented non-linear rubber mounts provide smoother operation at all engine speeds.

Positive Lubrication A crankshaft-driven, automotive-style trochoid oil pump ensures long-term durability of critical engine components.

Engine Alert System Audio and visual cues combine with RPM reduction circuits to alert the operator of overheating, low oil PSI and over-revving to prevent engine damage.

Forced Air Ventilation Unique air intake on the top of the cowl allows cooler air to enter and warmer air to escape. The ventilation system reduces under-the-hood operating temperature, improving performance and long-term durability of the electrical components.

High Output Charging System The BF40’s 10 amp charging system ensures that batteries remain charged.

Corrosion Protection System A patented, "Double Sealed" multi-layered paint process. Sacrificial anodes and stainless steel technology, along with waterproof connectors, all enhance corrosion protection.

Fresh Water Flushport Flushes debris and saltwater out of the engine, extending the life of the outboard.

Easy Maintenance Front-mounted oil filter and oil fillers simplify maintenance, while "screw-type" valve adjusters reduce maintenance costs.

Gas Assist Tilt A gas-filled cylinder makes it easy to tilt the engine for running in shallow water, or to raise it completely out of the water for protection.

Built-In Pitot Tube Built-in pitot tube in the gear case eliminates the need to drill holes in your boat for installation.