100 HP

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More power, from initial blast to top end speed.

Honda’s BF100 raises the bar as to what boaters can expect of mid-size engines. More power, lighter weight, and remarkable fuel economy.

Add in Honda’s best technology, and you’ve got a winning combination. Honda’s exclusive VTEC provides a superior blend of power, torque, and fuel efficiency at any speed. It’s the same Honda exclusive feature used on Honda cars, a premium innovation put to good use on our outboards.

Not to mention Multi-port Electronic Fuel Injection, BLAST, Lean Burn Control, and a 3 Way Cooling system. It’s the features you want in the perfect size.

Proven 4-stroke design

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

Legendary Honda Reliability

The technology we applied to our 100hp outboard engine is the very same that powers one of the most popular cars in the world, the Honda Fit.

True 5 Warranty

Honda's True 5 Warranty is the best in the business. This transferable, non-declining warranty is the same on the last day as it is on the first.

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VTEC® - Smooth acceleration and power

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.

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Programmed Fuel Injection - Powerful performance

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® - Superior fuel efficiency

Lean Burn Control® increases fuel efficiency by allowing combustion to operate on a leaner air/fuel mixture. At cruising speed, the BF100 runs on up to 20% less fuel* than others in its class.
*Based on EPA Specific Fuel Consumption Mode.

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BLAST® System - improves acceleration at low speeds

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.

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Meets NMEA 2000 standards - on-board connectivity

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

Fisherman Friendly Variable Speed Trolling

Another great advantage for fishermen is the BF100’s push button troll speed. Simply push up or down in 50 RPM increments from 650rpm to 1000 rpm. It’s standard on the tiller and optional on the remote.

Engine Alert System - Keeps you informed

The Engine Alert System uses visual, audio and RPM reduction circuits to alert the operator of over-heating, low oil PSI and over-revving, preventing engine damage.

4-Front Corrosion Protection System - Fights the elements

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

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High Performance Gearcase - gets you going faster

Designed to get you going faster, the high performance gearcase reduces drag, greatly reduces hull porpoise and minimizes spray, thus increasing acceleration and top speed.
A longer anti-ventilation plate helps trap water flowing to the propeller to minimize porpoising, while a streamlined front and longer bullet reduce drag for enhanced acceleration and fuel efficiency. A front splash plate reduces spray from the hull bottom, maintaining a dry deck above, and a 2.33:1 gear ratio affords the use of 13- to 14-inch diameter propellers for heavier loads.

Superior Battery Charging - More usable power

There's always plenty of electric power with Honda's exclusive neodymium magnet flywheel. The alternator develops 44 amps in total and 35 amps of charging amps, it's twice the output of some competitors. It provides high output and keeps battery banks charged all day, even when running multiple accessories.

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Center Mount Tiller - Easier control

The ergonomically designed tiller handle is longer for improved handling. Adjustments for throttle and steering friction allow easier control. Up front shift lever, PTT switch, and engine alert lamps provide added convenience.

Lightweight

Weighing in at only 366 lbs, the BF100 is among the lightest engines in its class.

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.

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.

Torsion Dampener - improved handling.

Sometimes called a flywheel, it is located near the base of the powerhead. This design lowers the center of gravity for improved handling.

SOHC 4 Valve/Cyl. Design - max power

The powerful 1.5L, 4-cylinder design utilizes a single overhead cam, and two intake valves to deliver maximum torque and power.

3-Way Cooling System - Cool running durability

Three separate cooling systems keep the cylinder heads running cooler for long-term durability.

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Top Mounted Electronics

The alternators, ignition and other critical electrical components are mounted near the top of the powerhead to stay cool and dry. The result? Dependable performance.

Fresh Water Flushport

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

3 Position Tiller Handle

The 3 Position Tiller Handle adjusts to your comfort for easiest hull maneuverability.

Built-In Pitot Tube

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

Non-Linear Mounting System - Smoother operation

Patented non-linear rubber mounts provide smoother operation at all engine speeds.

Sealed Starter - Protection for long life

The starter motor is inverted into a sealed chamber that protects the starter drive from the elements.

Positive Lubrication

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

Available in 20 and 25 inch shaft configurations

Engine

Type4-Stroke SOHC 4 Cylinder/16 Valves
Displacement1,496 cc (91.4 cubic inches)
Bore & Stroke73 mm x 89.4 mm (3.0 x 3.5 inches)
Full Throttle RPM Range5,500-6,300 RPM
Rated Power100 HP @ 5,900 RPM
Cooling SystemWater Cooled
FuelUnleaded Gas (93 Octane)
Fuel DeliveryProgrammed Fuel Injection
Ignition SystemMicroComputer Programmed
Starting SystemElectric
ExhaustThrough Hub
LubricationWet Sump
Trim Range-4° to +16°
Tilt Range68°

Drive

Gear Ratio2.33:1
Gear ShiftF-N-R
Alternator (Electric Start)44 Amp
Battery Charging Power35 Amp
PropellerOptional
Power TiltNA
Power Trim & TiltStandard
Gas Assisted TiltNA
Oil Pressure AlertStandard
Temperature AlertStandard
Rev-LimiterStandard
Speedometer PickupStandard

Dimensions

Overall Width480 mm/18.9 inches

Transom Height

L Type508 mm/20 inches
X Type635 mm/25 inches

Dry Weight

L-Type163 kg/359 lbs.
X-Type166 kg/365 lbs.
Transom Ht.20"
Remote ModelX
Tiller Included
iST- Electronic Shift & Throttle
Electric StartX
Charging System33A
Prop Included
Power Thrust
Power Tilt & TrimX
Gas Assist
Transom Ht.25"
Remote ModelX
Tiller Included
iST- Electronic Shift & Throttle
Electric StartX
Charging System33A
Prop Included
Power Thrust
Power Tilt & TrimX
Gas Assist

Owner's Manuals

BF100

Manuals by Serial Range