Suzuki DF25A Portable vs Mariner 25hp International (Yamaha-built 695)
DF25A Portable
25hp International (Yamaha-built 695)
| Spec | Suzuki DF25A Portable | Mariner 25hp International (Yamaha-built 695) |
|---|---|---|
| Power & Performance | ||
| Horsepower | 25 HP | 25 HP |
| Displacement | 489 cc ← | 430 cc |
| Configuration | 2 Cyl / Inline | 2 Cyl / Inline |
| Weights & Dimensions | ||
| Dry Weight | 62 kg (137 lbs) | 51 kg (112 lbs) ← |
| Mechanical & Electrical | ||
| Gear Ratio | 2.09:1 | 1.85 |
| Alternator | 180 W ← | 84 W |
| Fuel Delivery | Sequential EFI | Carbureted |
| Maintenance | ||
| Spark Plug | NGK CPR6EA-9 | NGK B8HS-10 |
| Engine Oil | 10W-40 FC-W | TC-W3 2-Stroke |
Technical Comparison Analysis
Power & Displacement
Comparing the Suzuki DF25A Portable and Mariner 25hp International (Yamaha-built 695) shows a displacement difference of 59cc. The Suzuki features a larger 489cc 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 Mariner is the lighter option at 51kg, offering a weight saving of 11kg 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 Suzuki offers the best charging performance with a 180W 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.