2004 Honda BF40 40HP 4-Stroke Outboard Engine

£2,100.00

Down Payment: £650

Shaft Length: 20” (Long Shaft)

Steering & Control: Multi-Function Tiller Handle

Starting System: Electric Start

Trim & Tilt: Integrated Power Trim and Tilt

Hours: 320 Original Operating Hours

100% Original, Low-Hour Freshwater Gem – Ready to Mount & Run

If you’ve been hunting for a clean, current-generation midrange four-stroke that doesn’t carry a showroom retail price tag, this 2004 Honda BF40 is a rare find. Having logged only 320 original hours of light recreational use, this motor is a complete time capsule. It is 100% original, completely unmodified, and has been meticulously maintained.

Cosmetically, the engine is in near-flawless shape, showing only one minor superficial scratch on top of the upper cowling—otherwise, the original paint and factory decals look absolutely like new.

Mechanically, it is a turn-key machine that is ready to bolt directly to your transom and run today. Configured as a 20” long-shaft model with an ergonomic tiller handle and full electric start, this engine is the ultimate upgrade for heavy-duty aluminum fishing boats, commercial work skiffs, rigid inflatables (RIBs), or pleasure craft.

Key Mechanical & Performance Highlights

  • Legendary Honda 3-Cylinder SOHC Block: Featuring a rock-solid 808 cc displacement architecture, this inline 3-cylinder engine delivers incredibly smooth firing cycles, high low-end torque, and whisper-quiet operation compared to loud 2-stroke platforms.

  • Finger-Tip Power Trim & Tilt: Equipped with a high-performance integrated hydraulic power trim and tilt motor. Adjust your running attitude on the fly from the tiller assembly to optimize hull planing, maximize top-end speed, or lift the leg completely out of the brine when beaching.

  • Turn-Key Electric Start: Features an effortless, high-torque electric starter motor with an automatic enrichment choke system, ensuring instant firing even on freezing mornings.

  • High-Output Charging Alternator: Built with a heavy-duty marine alternator that pumps out charging power to keep your cranking battery completely topped up while simultaneously running fish finders, navigation lights, and livewells.

  • Unmatched Fuel Economy: No oil mixing, no smoke, and no plug-fouling smell. This engine sips standard unleaded fuel efficiently, radically extending your cruising range on a standard portable fuel tank.

Technical Specifications

Feature Factory Specification
Model Generation BF40 Series Four-Stroke
Model Year 2004
Horsepower Output 40 HP @ 5,500 RPM
Engine Architecture 808 cc Inline 3-Cylinder SOHC
Operating Hours 320 Original Hours
Shaft Length 508 mm (20″ Long Shaft)
Control System Ergonomic Tiller Handle with Mounted Controls
Starting System Turn-Key Electric Start
Trim/Tilt Method Hydraulic Power Trim & Tilt
Dry Weight ~98 kg (Extremely Light for a 3-Cylinder 4-Stroke)

Built-In Safety & Diagnostic Arrays

  • Integrated Warning Indicators: Visual oil pressure and engine temperature warning lights are built into the lower fascia to protect your engine block from unexpected drops in pressure or thermal overheating.

  • Through-Hub Propeller Exhaust: Exhaust gases are routed directly through the center of the propeller hub underwater. This buries mechanical noise and redirects engine fumes away from the captain and passengers.

  • Shallow Water Mechanical Protection: The robust midsection casing features rugged rubber shock mounts to isolate vibration, protecting your transom and your hands from operator fatigue during long shifts at the helm.

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2004 Honda BF40 40HP 4-Stroke Outboard Engine

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