McCulloch 25hp Custom vs Mariner 25hp International (Yamaha-built 695)
25hp Custom
25hp International (Yamaha-built 695)
| Spec | McCulloch 25hp Custom | Mariner 25hp International (Yamaha-built 695) |
|---|---|---|
| Power & Performance | ||
| Horsepower | 25 HP | 25 HP |
| Displacement | 491 cc ← | 430 cc |
| Configuration | 2 Cyl / Inline-2 | 2 Cyl / Inline |
| Weights & Dimensions | ||
| Dry Weight | 43 kg (95 lbs) ← | 51 kg (112 lbs) |
| Mechanical & Electrical | ||
| Gear Ratio | 1.85 | 1.85 |
| Alternator | 126 W ← | 84 W |
| Fuel Delivery | Carbureted | Carbureted |
| Maintenance | ||
| Spark Plug | Champion J6C | NGK B8HS-10 |
| Engine Oil | TC-W3 2-Stroke | |
Technical Comparison Analysis
Power & Displacement
Comparing the McCulloch 25hp Custom and Mariner 25hp International (Yamaha-built 695) shows a displacement difference of 61cc. The McCulloch features a larger 491cc 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 McCulloch is the lighter option at 43kg, offering a weight saving of 8kg 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 McCulloch 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.