Honda's 20HP is an outstanding choice for aluminum fishing boats, inflatables, sailboats, or as a "kicker" for larger fishing boats. Outstanding, because it has the largest displacement in it's class, as well as the strongest torque and highest battery charging power. And because it's a Honda, you can expect long term durability and clean, quiet operation.

Type 4-Stroke OHC Twin Cylinders
Displacement 350 cc (21.4 cubic inches)
Bore & Stroke 59 x 64 mm (2.30 x 2.51 inches)
Full Throttle RPM Range 5000-6600 RPM
HP Rating @ Propshaft 20HP @ 5500 RPM
Induction Scavenging SOHC
Valves per Cylinder 2
Fuel Delivery Single Venturi
Ignition System Programmed Ignition System
Starting System Manual/Electric
Lubrication Wet Sump
Cooling System Water Cooled
Alternator Electric 12 Amps (148 Watts) Manual 6 Amps (76 Watts)
Trim Range 4 Stage 8°-12°-16°-20°
Tilt Range 72°
Gear Ratio 2.08:1 (13/27)
Gear Shift F-N-R
Propeller BF 4 Blade Aluminum 9 1/4 x 8 inches
Propeller BFP 4 Blade Aluminum 10 x 7 5/8 inches
Recommended Transom Height (S) 381 mm/15 inches
(L) 508 mm/20 inches
Dry Weight Tiller(Man) (S/L) 46/49 kg - 101/108 lbs.
Dry Weight Tiller (Elec) (S/L) 49.5/52.5 kg - 109/116 lbs.
Dry Weight(Power Tilt) (S/L) 58/59.5 kg - 128/131 lbs.


4-Stroke Design
World-renowned Honda quality combines proven reliability and superior fuel efficiency, with no oil mixing.
Power Thrust Design (BFP)
The 10" x 7 5/8" Power Thrust 4-blade propeller creates 60% more thrust in reverse and 15% more in forward. The result-improved maneuverability and performance.
Reverse Exhaust Relief
Additional exhaust relief above the cavitation plate produces more thrust by allowing the prop to run in clean, exhaust-free water.
Large Displacement
At 21.4 cubic inches the 20HP has the largest displacement in its class! Along with the long-stroke design, this provides optimum torque throughout the RPM range.
Lightweight Design
The lightest 4-stroke model in its class, the BF20 is easy to transport and convenient to mount.
Easy One Hand Starting
Working together, a built-in decompression release and digital CDI system set the ignition timing during start-up. Greatly reduces the effort required to pull-start the engine by hand!
Power Tilt  
Conveniently allows user to tilt the unit out of the water. At low speeds acts like a power shallow-water-drive device, permitting access to the shallow water areas
High Output Charging
The BF20 provides 2 Amps at 1000 RPM and an amazing 12 amps at only 3000 RPM to maintain the battery charge or keep electronics going even at trolling speeds.
Auto Start Enrichment (ASE)
Standard on electric start models, Auto Start Enrichment automatically adjusts the air/fuel mixture for quick and easy starts and warm-up.
Pendulum Mount System
Honda's exclusive triangulated rubber mount system absorbs vibration and provides unbelievably smooth operation.
Integrated Carrying Handle
Situated at the exact top/bottom balance point of the engine, the BF20’s integrated carrying handle make transporting it a breeze.
3 Stage Carburetion
While conventional 2-circuit carburetors go directly from a lean mixture at idle to a rich setting at full throttle, the BF15/20 adds a third stage for better economy and smoother operation.
PGM Ignition
A reliable microprocessor accurately controls ignition timing during start-up and across the entire RPM range, providing optimum overall operation.
Engine Alert System
The integrated warning system protects the engine from severe damage due to low oil, over-revving and overheating.
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.
Longer Tiller Handle
Made of a new lightweight composite, the BF20’s longer tiller handle improves control while reducing steering effort.
Up Front Tiller Controls
A convenient front-mounted shift lever allows fingertip shifting while a Twist Grip Throttle & Tensioner minimize driver fatigue.
EZ Steer Friction Control
Unique lever design allows operator to precisely adjust steering tension for improved control and comfort.
Shallow Water Drive
Allows you to run in shallow water and greatly reduces the risk of engine damage.
Positive Lubrication
A crankshaft-driven, automotive-style trochoid oil pump ensures long-term durability of critical engine components.
Ultra Low 3 Star Carb Emissions
Environmentally friendly technology.

(619) 384-2733 / Fax: (619) 649-4300
3302 Kurtz Street, where I-5 and I-8 meet, San Diego, CA 92110