Mariner 15hp International (Yamaha-built 684) vs Evinrude 15hp (2-Stroke)
15hp International (Yamaha-built 684)
15hp (2-Stroke)
| Spec | Mariner 15hp International (Yamaha-built 684) | Evinrude 15hp (2-Stroke) |
|---|---|---|
| Power & Performance | ||
| Horsepower | 15 HP | 15 HP |
| Displacement | 246 cc | 255 cc ← |
| Configuration | 2 Cyl / Inline | 2 Cyl / Inline |
| Weights & Dimensions | ||
| Dry Weight | 34 kg (75 lbs) ← | 35 kg (77 lbs) |
| Mechanical & Electrical | ||
| Gear Ratio | 2.08 | 2.15:1 |
| Alternator | 80 W | 145 W ← |
| Fuel Delivery | Carbureted | Carbureted |
| Maintenance | ||
| Spark Plug | NGK B7HS | Champion QL77JC4 |
| Engine Oil | TC-W3 2-Stroke | TC-W3 (50:1) |
Technical Comparison Analysis
Power & Displacement
Comparing the Mariner 15hp International (Yamaha-built 684) and Evinrude 15hp (2-Stroke) shows a displacement difference of 9cc. The Evinrude features a larger 255cc 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 34kg, 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 Evinrude offers the best charging performance with a 145W 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.