Honda Marine BF4 Outboard Motor
The Honda BF4 is a lightweight, fuel-efficient 4 HP four-stroke outboard designed for reliability, quiet operation, and easy portability. Whether you’re powering a dinghy, inflatable boat, skiff, or small fishing boat, the BF4 delivers smooth performance backed by Honda’s legendary engineering.
Key Features
Powerful & Efficient Performance
- Reliable 4 HP Honda four-stroke engine
- Large 127 cc single-cylinder engine for excellent low and mid-range torque
- Lightweight design at just 27 kg (59.5 lbs)
- Smooth acceleration with excellent fuel economy
- Maintenance-free Digital CDI ignition for fast, reliable starts
Built for Reliability
- Oil Alert® System protects the engine from low oil conditions
- Water-cooled engine with thermostat for consistent performance
- Fresh-water flush port helps extend engine life
- Sacrificial anode provides corrosion protection
- Shallow-water drive minimizes the risk of lower unit damage
- Backed by Honda’s 3-Year Parts & Labour Warranty
Easy to Use
- Large ergonomic carrying handle for effortless transport
- Fold-down tiller handle for compact storage
- Twist-grip throttle with adjustable friction control
- Neutral-start safety system
- One-push engine stop switch with safety lanyard
- Integrated fuel tank for convenient portability
- Available in 15″ (Short Shaft) and 20″ (Long Shaft) models
- Optional 6 Amp / 12V charging system for onboard electronics
Quiet & Comfortable
- Redesigned rubber engine mounts reduce vibration
- Exceptionally quiet operation throughout the RPM range
- Comfortable handling with reduced operator fatigue
Specifications
| Specification | Details |
|---|---|
| Engine Type | 4-Stroke OHV, 1 Cylinder, Water Cooled |
| Displacement | 127 cc |
| Horsepower | 4 HP @ 5,000 RPM |
| Full Throttle Range | 4,500–5,500 RPM |
| Cooling System | Water Cooled with Thermostat |
| Fuel System | Carburetor |
| Fuel Tank Capacity | 1.5 L |
| Starting System | Manual Recoil |
| Ignition | Digital CDI |
| Fuel | Unleaded Gasoline (Minimum 86 Octane) |
| Recommended Oil | SAE 10W-30 FC-W® or API SJ or Later |
| Oil Capacity | 0.55 L |
| Gear Ratio | 2.08:1 |
| Gear Shift | Forward • Neutral • Reverse |
| Steering | 45° Left / Right |
Dimensions
| Item | Measurement |
|---|---|
| Overall Length | 524 mm (20.6″) |
| Overall Width | 347 mm (13.7″) |
| Overall Height | 1020 mm (Short Shaft) / 1147 mm (Long Shaft) |
| Transom Height (Short Shaft) | 434 mm (17.1″) |
| Transom Height (Long Shaft) | 561 mm (22.1″) |
Propeller
- Type: 3-Blade Aluminum
- Standard Size: 200 × 150 mm (7-7/8 × 5-7/8 in.)
Weight
| Model | Weight |
|---|---|
| Short Shaft (S-Type) | 27 kg (59.5 lbs) |
| Long Shaft (L-Type) | 27.5 kg (60.6 lbs) |
Ideal For
- Inflatable boats
- Dinghies
- Tenders
- Skiffs
- Small fishing boats
- Utility boats
- Sailboats
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