Mariner 20hp International (Yamaha-built 653) vs Chrysler 20hp (2-Stroke)
20hp International (Yamaha-built 653)
20hp (2-Stroke)
| Spec | Mariner 20hp International (Yamaha-built 653) | Chrysler 20hp (2-Stroke) |
|---|---|---|
| Power & Performance | ||
| Horsepower | 20 HP | 20 HP |
| Displacement | 395 cc ← | 327 cc |
| Configuration | 2 Cyl / Inline | 2 Cyl / Inline |
| Weights & Dimensions | ||
| Dry Weight | 48 kg (106 lbs) ← | 59 kg (130 lbs) |
| Mechanical & Electrical | ||
| Gear Ratio | 2.08 | 2.0 |
| Alternator | 126 W ← | 113 W |
| Fuel Delivery | Carbureted | Carbureted |
| Maintenance | ||
| Spark Plug | NGK B7HS | Champion L77JC4 |
| Engine Oil | TC-W3 2-Stroke | TC-W3 2-Stroke |
Technical Comparison Analysis
Power & Displacement
Comparing the Mariner 20hp International (Yamaha-built 653) and Chrysler 20hp (2-Stroke) shows a displacement difference of 68cc. The Mariner features a larger 395cc 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 48kg, offering a weight saving of 11kg 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 126W 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.