Selva Oyster 6 vs Mercury 6hp (2-Stroke)
Oyster 6
6hp (2-Stroke)
| Spec | Selva Oyster 6 | Mercury 6hp (2-Stroke) |
|---|---|---|
| Power & Performance | ||
| Horsepower | 6 HP | 6 HP |
| Displacement | 135 cc | 209 cc ← |
| Configuration | 1 Cyl / Inline | 2 Cyl / Inline |
| Weights & Dimensions | ||
| Dry Weight | 27 kg (60 lbs) | 27 kg (60 lbs) |
| Mechanical & Electrical | ||
| Gear Ratio | 2.31 | 2.0 |
| Alternator | 60 W | 60 W |
| Fuel Delivery | Carbureted | Carbureted |
| Maintenance | ||
| Spark Plug | NGK DCPR6E | NGK BP8H-N-10 |
| Engine Oil | 10W-30 FC-W | TC-W3 2-Stroke |
Technical Comparison Analysis
Power & Displacement
Comparing the Selva Oyster 6 and Mercury 6hp (2-Stroke) shows a displacement difference of 74cc. The Mercury features a larger 209cc 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 Mercury is the lighter option at 27kg, offering a weight saving of 0kg 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 Mercury offers the best charging performance with a 60W 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.