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2018 Honda Marine BF115 25 in Outboard Motor

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Product Description

2018 Honda Marine BF115 25 in Outboard Motor


The BF115 does not come with a propeller. Please consult with your Honda Dealer for propeller application assistance.

Performance and Efficiency

Stroke design, based on the Honda Accord: Based on the Honda Accord engine platform, the BF115 benefits from years of proven Honda engineering and reliability.

Dual Overhead CAM (DOHC): A powerful, compact 16-valve DOHC design creates more valve lift to pull in more air for increased horsepower. Low-maintenance design allows easy adjustment of the rocker arms. No multiple shims or trial-and-error adjusting needed.

BLAST® System: Boosted Low Speed Torque, or BLAST®, improves acceleration at low speeds. A quick movement of the throttle control activates the BLAST® system, advancing the ignition curve aggressively. "Hole Shot" is vastly improved as more horsepower gets the hull up on plane quicker.

Multi-Port Programmed Fuel Injection (PGM-FI®): Programmed Fuel Injection delivers the precise amount of fuel/air to each cylinder. The result is easy starts and instant throttle response with superior fuel efficiency.

Lean Burn Control®: Lean Burn Control® increases fuel efficiency by allowing combustion to operate on a leaner air/fuel mixture. At cruising speed, this engine runs on up to 19% less fuel* than its predecessor. (*Based on EPA Specific Fuel Consumption Mode.)

Largest Displacement Engine: At 2354 cc (144 cubic inches), the BF115 has 21% more displacement than any competitor in it's class. The long-stroke design increases torque to deliver outstanding performance and efficiency.

Balanced Engine: Twin counter-rotating balancing shafts help minimize internal engine vibrations, thus providing smooth operation throughout the entire rpm range.

LAF & Knock Sensors: Linear Air Fuel (LAF) and knock sensors help determine correct fuel flow and ignition curve to maximize performance and fuel efficiency.

Engine Command System: The Engine Command Module receives constant input from 18 sensors located throughout the engine. It determines the correct fuel flow and ignition curve, providing optimum performance.

Reliability and Durability

3-Way Cooling System: Three separate cooling systems keep the cylinder heads running cooler for long-term durability.

Engine Alert System: Uses visual, audio and rpm reduction circuits to alert the operator of overheating, low oil PSI, over-revving, water in fuel, battery condition, and critical engine functions.

Four-Front Corrosion Protection: A patented, "Double Sealed" multi-layered paint process. Sacrificial anodes and stainless steel technology, along with waterproof connectors and painted interior cooling passages, all enhance corrosion protection.

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

Stainless Steel (Steering Arm, Tilt Tube and All Shafts): Stainless steel components provide durability with long-term corrosion resistance.

Ultra Low 3-Star CARB Emissions: Environmentally conscious technology. All Honda Marine engines exceed the highest CARB 3-Star rating to meet the rigorous California Air Resource Board's standards.

Warranty: As a testament to their quality and reliability, all Honda engines come with a three-year, non-declining, non-commercial warranty or a one-year commercial warranty.

Convenience and Ease of Use

NMEA 2000 Protocols: NMEA 2000 protocols allow engine data to be interfaced with on-board systems and systems displays, such as sonar or GPS.

High-Output Charging: The system develops 55 total amps, which after self consumption, delivers 40 “charging” amps. 30 amps at 1000 rpm and 40 amps above 2000 rpm.

Variable Speed Trolling: Another great advantage for fisherman is the 115’s optional push-button variable speed trolling control. Simply push up or down in 50 rpm increments from 650 rpm to 900 rpm.

Easy Maintenance: An easy "screw-type" valve adjuster system requires no shims and reduces maintenance costs. Front-mounted oil filter and oil filler make for easy maintenance.

Built-in Pitot Tube (optional built-in Pitot Tube kit required): Built-in pitot tube in the gear case eliminates the need to drill holes in your boat for installation.


Type: 4-Stroke DOHC; 4 Cylinder / 16 Valves

Displacement: 2,354 cc / 144 cu.in.

Bore & Stroke: 87 x 99 mm (3.43 x 3.89 in.)

Full Throttle RPM Range: 4,500-6,000 rpm

Propshaft Rated Horsepower (HP): 115 hp @ 5,250 rpm

Cooling System: Water Cooled

Fuel Delivery: Programmed Electronic Fuel Injection (PGM-FI)

Recommended Fuel: Unleaded Gas. (Min. Pump Octane 86)

Ignition System: MicroComputer Programmed

Starting System: Electric

Exhaust: Through Prop Hub

Lubrication: Wet Sump

Recommended Oil: Honda 10W30 FC-W™ outboard motor oil

Oil Capacity: 6.70 L(5.90 Imp. qt.) with oil filter repl.

Trim Range: -4 deg. to +16 deg.

Tilt Range: 68 deg.

Steering Angle: 30 deg.


Gear Ratio: 2.14:1

Gear Shift: F-N-R


Alternator (Electric Start): 55 amp

Battery Charging Power: 40 amp

Power Trim & Tilt: Standard

Oil Pressure Alert: Standard

Over Rev-Limiter: Standard

Temperature Alert: Standard

Water in Fuel Alert: Standard

Battery Condition Alert: Standard

Speedometer Pickup: Standard (Optional built-in Pitot tube kit required.)

Variable Speed Trolling Kit: Optional

Tilt limit Kit: Optional


Overall Width: 580 mm/22.8 in.

Transom Height (X-Type): 635 mm / 25 in.


Propeller Type: Optional

Dry Weight

X-Type: 220 kg / 485 lb.



2018 Honda Marine BF115 25 in Outboard Motor



Engine Type

4-Stroke DOHC; 4 Cylinder / 16 Valves

Bore x Stroke

87 x 99 mm (3.43 x 3.89 in.)


2,354 cc (144 cu.in.)




Shaft Length

635 mm (25 in.)


220 kg (485 lb.)


Trim Method

Power Trim & Tilt

Propshaft Horsepower

115 hp @ 5,250 rpm

Full Throttle Operating Range

4,500-6,000 rpm

Gear Ratio / Shift

2.14:1 / F-N-R

Fuel Induction

Programmed Electronic Fuel Injection (PGM-FI)


55 amp


Water Cooled




36 months non-commercial use; 12 months commercial use



2018 Honda Marine BF115 25 in Outboard Motor

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