Honda 20 HP 4-Stroke Marine Outboard Engine

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.

If you're looking for the best of class, with proven durability, Honda's 20HP is your engine.

Honda Advantage - downloadable PDF

Specifications

ENGINE
	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°
DRIVE
	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
DIMENSIONS
	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.

Features

Weighing in at a mere 101 pounds, Honda Marine’s BF15 and BF20 are the first four-stroke outboards of their kind to weigh less than most comparable 9.9hp engines on the market.

The BF20’s light weight, combined with PowerThrust, an Integrated Carrying Handle and exceptional quietness at cruise, make it the perfect choice for pontoons and inflatable yacht tenders, or as a “kicker” on a larger fishing boat.

Learn more about the BF20’s features. To see how quick and easy it is to get this engine going, play the ‘one-hand starting’ video.

The BF20 from Honda Marine…make a quiet entrance.

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.