Honda Marine Outboards
Honda BF 20
It's all about power and at 21.4 cubic inches, the Honda BF20 is the power king, with the largest displacement of any 20-horsepower outboard in the industry — and it’s also the lightest engine in its class.
The high-torque 20-horsepower engine also features a 12 AMP alternator to keep the battery charged at any speed. And it’s one of the most convenient outboards on the market, with EZ steer friction control that lets you adjust steering tension for comfort and better handling. And the convenience doesn’t stop there.
| ENGINE SPECIFICATIONS | ![]() |
| 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 SPECIFICATIONS | |
| Gear Ratio | 2.08:1 (13/27) |
| Gear Shift | F-N-R |
| Propeller BF | 4 Blade Aluminum 91/4 x 10 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. |



