Honda BF20DK2 – 20 HP 4-Stroke Outboard Motor, Lightweight and Powerful

The Honda BF20DK2 is a portable 20 HP outboard engine that offers an outstanding balance of power and weight. With a twin-cylinder 350 cc motor, it delivers smooth and quiet operation – ideal for small to mid-sized boats. Weighing in at about 47 kg (short shaft), the BF20DK2 is easy to carry and install, making it perfect for boats that are trailered or frequently launched and retrieved from the water.

Despite its compact size, the BF20 comes loaded with premium Honda features. The engine boasts the highest output charging system in its class – a 12A alternator on electric-start versions (and 6A on pull-start models). This provides plenty of power to charge a battery and run onboard electronics like fish finders, lights, and more, even during extended low-speed trolling.

Starting the BF20 is effortless and dependable. A built-in decompression mechanism allows for easy rope starts with minimal effort, often achievable with a single hand. On models with electric start, the engine fires up instantly at the turn of a key. The BF20 also features a shallow-water drive setting – useful for navigating in shoal areas or approaching the shore – along with a 5-position tilt that makes it easy to lift the motor out of the water and operate at various depths.

Like all Honda 4-stroke outboards, the BF20DK2 runs quietly and efficiently. Low noise and vibration levels are the result of its refined twin-cylinder design and efficient exhaust system. Fuel consumption is impressively low for an engine of this output, yet the sizable 350 cc displacement provides excellent torque even when carrying heavier loads or multiple passengers.

With its 20 horsepower, this engine is extremely versatile – ideal as the main powerplant for inflatable RIB boats around 12–15 ft (3.5–4.5 m) in length, small fishing skiffs and jon boats, and also as an auxiliary “kicker” motor for mid-sized sailboats (~20–23 ft). The BF20DK2 delivers reliable thrust to get a small boat on plane quickly and maintain cruising speeds. Thanks to its ease of use, fuel economy, and Honda’s renowned reliability, it’s a top choice for both avid anglers and family boaters.

Recommended Applications:

• Recommended boat length: ~12 – 15 ft (3.5 – 4.5 m) as a primary engine
• Ideal for: small RIB inflatables, aluminum fishing boats, and as an auxiliary motor for sailing yachts
• Highly portable and quick to set up – perfect for trailerable boats or those frequently moved between waters