Yamaha F2.5 Portable vs Honda BF2.3 Portable
F2.5 Portable
BF2.3 Portable
| Spec | Yamaha F2.5 Portable | Honda BF2.3 Portable |
|---|---|---|
| Power & Performance | ||
| Horsepower | 2.5 HP | 2.3 HP |
| Displacement | 72 cc ← | 57 cc |
| Configuration | 1 Cyl / Inline | 1 Cyl / Inline |
| Weights & Dimensions | ||
| Dry Weight | 17 kg (37 lbs) | 13 kg (29 lbs) ← |
| Mechanical & Electrical | ||
| Gear Ratio | 2.01:1 | 2.42:1 |
| Alternator | 0 W | 0 W |
| Fuel Delivery | Carbureted | Carbureted |
| Maintenance | ||
| Spark Plug | NGK BR6HS | NGK LR4C-E |
| Engine Oil | 10W-30 FC-W | 10W-30 FC-W |
Technical Comparison Analysis
Power & Displacement
Comparing the Yamaha F2.5 Portable and Honda BF2.3 Portable shows a displacement difference of 15cc. The Yamaha features a larger 72cc block, which typically provides superior low-end torque and better hole-shot performance when pushing heavy loads or reaching planning speeds.
Weight & Rigging
In terms of transom weight, the Honda is the lighter option at 13kg, offering a weight saving of 4kg over its competitor. This weight reduction is critical for smaller hulls or boats with limited transom capacity where every kilogram affects the center of gravity and drainage efficiency.
Electrical & Features
For boats equipped with modern electronics, sonar, and shallow-water anchors, the Honda offers the best charging performance with a 0W alternator. Choosing the right power-to-weight profile between these two 4-stroke engines depends heavily on your specific boat's displacement and daily power requirements.