Mariner 4hp (2-Stroke) vs Yamaha 4hp (2-Stroke)
4hp (2-Stroke)
4hp (2-Stroke)
| Spec | Mariner 4hp (2-Stroke) | Yamaha 4hp (2-Stroke) |
|---|---|---|
| Power & Performance | ||
| Horsepower | 4 HP | 4 HP |
| Displacement | 83 cc | 83 cc |
| Configuration | 1 Cyl / Inline | 1 Cyl / Inline |
| Weights & Dimensions | ||
| Dry Weight | 20 kg (44 lbs) ← | 21 kg (46 lbs) |
| Mechanical & Electrical | ||
| Gear Ratio | 2.0 | 2.08 |
| Alternator | 0 W | 0 W |
| Fuel Delivery | Carbureted | Carbureted |
| Maintenance | ||
| Spark Plug | NGK B7HS | NGK BR7HS |
| Engine Oil | TC-W3 2-Stroke | Yamalube 2-M |
Technical Comparison Analysis
Power & Displacement
Comparing the Mariner 4hp (2-Stroke) and Yamaha 4hp (2-Stroke) shows a displacement difference of 0cc. The Yamaha features a larger 83cc 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 20kg, 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 Yamaha offers the best charging performance with a 0W 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.