Yamaha 150hp V6 Saltwater Series II vs Johnson 135hp Crossflow V4
150hp V6 Saltwater Series II
135hp Crossflow V4
| Spec | Yamaha 150hp V6 Saltwater Series II | Johnson 135hp Crossflow V4 |
|---|---|---|
| Power & Performance | ||
| Horsepower | 150 HP | 135 HP |
| Displacement | 2596 cc ← | 1600 cc |
| Configuration | 6 Cyl / V6 90° | 4 Cyl / V4 90° |
| Weights & Dimensions | ||
| Dry Weight | 190 kg (419 lbs) | 142 kg (313 lbs) ← |
| Mechanical & Electrical | ||
| Gear Ratio | 1.86:1 | 1.86 |
| Alternator | 504 W ← | 126 W |
| Fuel Delivery | Triple Carbureted | Twin Carbureted |
| Maintenance | ||
| Spark Plug | NGK BR8HS-10 | Champion QL77JC4 |
| Engine Oil | Precision Blend Injection | TC-W3 2-Stroke |
Technical Comparison Analysis
Power & Displacement
Comparing the Yamaha 150hp V6 Saltwater Series II and Johnson 135hp Crossflow V4 shows a displacement difference of 996cc. The Yamaha features a larger 2596cc 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 Johnson is the lighter option at 142kg, offering a weight saving of 48kg 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 504W 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.