Force 25hp (2-Stroke) vs Mariner 25hp International (Yamaha-built 695)
25hp (2-Stroke)
25hp International (Yamaha-built 695)
| Spec | Force 25hp (2-Stroke) | Mariner 25hp International (Yamaha-built 695) |
|---|---|---|
| Power & Performance | ||
| Horsepower | 25 HP | 25 HP |
| Displacement | 496 cc ← | 430 cc |
| Configuration | 2 Cyl / Inline | 2 Cyl / Inline |
| Weights & Dimensions | ||
| Dry Weight | 44 kg (97 lbs) ← | 51 kg (112 lbs) |
| Mechanical & Electrical | ||
| Gear Ratio | 1.92 | 1.85 |
| Alternator | 100 W ← | 84 W |
| Fuel Delivery | Carbureted | Carbureted |
| Maintenance | ||
| Spark Plug | Champion QL82C | NGK B8HS-10 |
| Engine Oil | TC-W3 2-Stroke | TC-W3 2-Stroke |
Technical Comparison Analysis
Power & Displacement
Comparing the Force 25hp (2-Stroke) and Mariner 25hp International (Yamaha-built 695) shows a displacement difference of 66cc. The Force features a larger 496cc 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 Force is the lighter option at 44kg, offering a weight saving of 7kg 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 Force offers the best charging performance with a 100W alternator. Choosing the right power-to-weight profile between these two 2-stroke engines depends heavily on your specific boat's displacement and daily power requirements.