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.

VTEC®

• Honda’s Variable Valve Timing & Lift Electronic Control (VTEC®) system® provides power where and when you need it. VTEC® gives you a broader, flatter torque curve and smooth power delivery throughout the engine’s operating range. The result is a superior combination of power, torque and fuel economy. VTEC® is the modern replacement for displacement.

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.

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.

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 2,354 cc (144 cubic inches), the BF115 iST® 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.

New Intuitive Drive-by-Wire System

• The Honda iST® command and control system provides superb control and plug-and-play installation. The system offers all of the features boaters are looking for, including control of multiple engines and two control stations; effortless shift and throttle control; fine tuning of throttle settings at any speed; virtual positioning and anchoring, enhanced docking and slow speed control; return-to-port capability; and simple, easy-to-understand user interface.

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.

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, which 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.