2025 Honda Marine BF20 S-Type

2025 Honda Marine BF20 S-Type

Swipe to View More

  • Year 2025
  • Make Honda Marine
  • Model BF20
2025 Honda Marine BF20 S-Type

2025 Honda Marine BF20 S-Type

2025 Honda Marine BF20 S-Type

A portable powerhouse.

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.

Features may include:

Quiet & Smooth Performance

Large Displacement - better performance

At 21.4 cubic inches, the BF15 and 20 have one of the largest displacements in its class. Along with the long-stroke design, this provides optimum torque throughout the RPM range.

PGM Ignition

A reliable microprocessor accurately controls ignition timing during start-up and across the entire RPM range, providing optimum overall performance.

Power Thrust for Added Performance

Reverse Exhaust Relief for increased manueverability

The exhaust relief feature creates more power in reverse by minimizing cavitation around the propeller blades. The exhaust relief is located above the cavitation plate, allowing the prop to run in clean, exhaust-free water.

Legendary Reliability

True 5 Warranty

Honda's True 5 Warranty is the best in the business. This transferable, non-declining warranty is the same on the first day as it is on the last.

Engine Alert System - Keeps you informed

The integrated warning system protects the engine from severe damage due to low oil, over-revving and overheating.

Easy Starting

Easy One Hand Starting

A built-in decompression release and digital CDI system set the BF15 and 20’s ignition timing. This reduces the effort required to pull-start the engine by hand by 40%!

Auto Start Enrichment - easy starts

Auto Start Enrichment acts as an automatic choke. Just like a fuel injection system, it automatically adjusts the air/fuel mixture for quick, easy starting and warm-up.

Easy Ownership

Lightweight Design

The lightest 4-stroke model in their class, the BF15 and 20 are easy to transport and convenient to mount.

Integrated Carrying Handle - easier transport

A integrated carrying handle makes transporting the engine a breeze. The convenient, foldaway carry handle is situated at the exact top/bottom balance point of the engine. This means the engine carries more easily in a level position.

Engine

Engine Type 4-Stroke SOHC 2 Cylinder/4 Valves
Engine Power Rated: 20 HP @ @ 5,500 RPM
Displacement 21.4 cubic inches (350 cc)
Throttle Full Range: 5,000-6,000 RPM
Bore 2.3" (59 mm)
Stroke 2.5" (64 mm)
Cooling System Water Cooled
Ignition System: PGM-IG
Starter System: Electric/Recoil
Exhaust Through Hub
Lubrication Wet Sump
Gear Ratio (Primary) 2.08:1
Gear Shifter F-N-R

Electric

Alternator With voltage regulator (Electric Start): 12-Amp (151 watt) | with voltage regulator (Manual Start): 6-Amp (76 watt)

Performance

Propulsion System Propeller: 4-Blade Aluminum

Fuel System

Fuel Type Delivery: 1 Carburetor

Dimensions

Dimensions Diameter x Pitch: 9¼" x 10" | Diameter x Pitch, Power Thrust: 10" x 7"
Overall Width 13.8" (350 mm)
Transom Height 15" (381 mm)

Weights

Dry Weight 104 lbs. (47 kg)

Features

Features Trim Range: 4 Stage 8°-12°-16°-20° | Tilt Range: 72° | Power Tilt: Available | Oil Pressure Alert: Standard | Temperature Alert: Standard | Rev-Limiter: Standard

Product Photography