Honda BF15 BF20 Outboards

For smaller 12 to 16 foot boats, the BF15 and BF20 are as convenient as you can get. At just 104 pounds, they are among the lightest in their class. Yet they‘re all Honda DNA: quiet, reliable, fuel efficient, and loaded with features. Like the highest output charging system in their class, giving you plenty of power for all your electronics, even when trolling.

Or large displacement for a powerful performance. Choose the BFP Power Thrust design for even more boost, with 60% more thrust in reverse and 15% more in forward. Add in easy one hand starting, shallow water drive, power tilt, and much more, and you’ve got the ideal combination of power and portability.


BF15 BF20
Type 4-Stroke SOHC 2 Cylinder/4 Valves 4-Stroke SOHC 2 Cylinder/4 Valves
Displacement 350 cc (21.4 cubic inches) 350 cc (21.5 cubic inches)
Bore & Stroke 59 mm x 64 mm (2.3 x 2.5 inches) 59 mm x 64 mm (2.3 x 2.5 inches)
Full Throttle RPM Range 4,500-5,500 RPM 5,000-6,000 RPM
Rated Power 15 HP @ 5,000 RPM 20 HP @ 5,500 RPM
Cooling System Water Cooled Water Cooled
Fuel Delivery 1 Carburetor 1 Carburetor
Ignition System PGM-IG PGM-IG
Starting System Electric/Recoil Electric/Recoil
Exhaust Through Hub Through Hub
Lubrication Wet Sump Wet Sump
Trim Range 4 Stage 8°-12°-16°-20° 4 Stage 8°-12°-16°-20°
Tilt Range 72° 72°


BF15 BF20
Gear Ratio 2.08:1 2.08:1
Gear Shift F-N-R F-N-R


BF15 BF20
Alternator with voltage regulator (Electric Start) 12-Amp (148 watt) 12-Amp (151 watt)
Alternator with voltage regulator (Manual Start) 6-Amp (76 watt) 6-Amp (76 watt)
Propeller 4-Blade Aluminum 4-Blade Aluminum
Diameter x Pitch, Standard 9¼ x 10 inches 9¼ x 10 inches
Diameter x Pitch, Power Thrust 10 x 7⅝ inches 10 x 7⅝ inches
Power Tilt Available Available
Oil Pressure Alert Standard Standard
Temperature Alert Standard Standard
Rev-Limiter Standard Standard


BF15 BF20
Overall Width 350 mm/13.8 inches 350 mm/13.8 inches

Transom Height

BF15 BF20
S Type 381 mm/15 inches 381 mm/15 inches
L Type 508 mm/20 inches 508 mm/20 inches
X Type 635 mm/25 inches NA

Dry Weight

BF15 BF20
S-Type 47 kg/104 lbs. 47 kg/104 lbs.
L-Type 50 kg/110 lbs. 50 kg/110 lbs.
X-Type 52 kg/115 lbs. NA


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