Yamaha F130 EFI vs Johnson 120hp Looper V4
F130 EFI
120hp Looper V4
| Spec | Yamaha F130 EFI | Johnson 120hp Looper V4 |
|---|---|---|
| Power & Performance | ||
| Horsepower | 130 HP | 120 HP |
| Displacement | 1832 cc | 2000 cc ← |
| Configuration | 4 Cyl / Inline | 4 Cyl / V4 90° |
| Weights & Dimensions | ||
| Dry Weight | 172 kg (379 lbs) | 168 kg (370 lbs) ← |
| Mechanical & Electrical | ||
| Gear Ratio | 2.15:1 | 2.25 |
| Alternator | 420 W ← | 201 W |
| Fuel Delivery | EFI | Carbureted |
| Maintenance | ||
| Spark Plug | NGK LFR6A-11 | Champion QL77JC4 |
| Engine Oil | 10W-30 FC-W | VRO Injection |
Technical Comparison Analysis
Power & Displacement
Comparing the Yamaha F130 EFI and Johnson 120hp Looper V4 shows a displacement difference of 168cc. The Johnson features a larger 2000cc 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 168kg, offering a weight saving of 4kg 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 420W 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.