Yamaha 25hp Precision Blend vs Mariner 25hp International (Yamaha-built 695)
25hp Precision Blend
25hp International (Yamaha-built 695)
| Spec | Yamaha 25hp Precision Blend | Mariner 25hp International (Yamaha-built 695) |
|---|---|---|
| Power & Performance | ||
| Horsepower | 25 HP | 25 HP |
| Displacement | 395 cc | 430 cc ← |
| Configuration | 2 Cyl / Inline-2 | 2 Cyl / Inline |
| Weights & Dimensions | ||
| Dry Weight | 52 kg (115 lbs) | 51 kg (112 lbs) ← |
| Mechanical & Electrical | ||
| Gear Ratio | 2.08 | 1.85 |
| Alternator | 80 W | 84 W ← |
| Fuel Delivery | Carbureted (Oil Injected) | Carbureted |
| Maintenance | ||
| Spark Plug | NGK BR7HS-10 | NGK B8HS-10 |
| Engine Oil | Yamalube 2M | TC-W3 2-Stroke |
Technical Comparison Analysis
Power & Displacement
Comparing the Yamaha 25hp Precision Blend and Mariner 25hp International (Yamaha-built 695) shows a displacement difference of 35cc. The Mariner features a larger 430cc 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 1kg 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 Mariner offers the best charging performance with a 84W 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.