Tohatsu MFS100 (4-2-1 Exhaust) vs Force 90hp (2-Stroke)
MFS100 (4-2-1 Exhaust)
90hp (2-Stroke)
| Spec | Tohatsu MFS100 (4-2-1 Exhaust) | Force 90hp (2-Stroke) |
|---|---|---|
| Power & Performance | ||
| Horsepower | 100 HP | 90 HP |
| Displacement | 1995 cc ← | 1622 cc |
| Configuration | 4 Cyl / Inline | 3 Cyl / Inline |
| Weights & Dimensions | ||
| Dry Weight | 178 kg (392 lbs) | 129 kg (284 lbs) ← |
| Mechanical & Electrical | ||
| Gear Ratio | 2.08:1 | 1.93:1 |
| Alternator | 516 W ← | 192 W |
| Fuel Delivery | EFI | Carbureted |
| Maintenance | ||
| Spark Plug | NGK LFR6A-11 | Champion L76V |
| Engine Oil | Tohatsu 4-Stroke Oil | 50:1 Pre-mix |
Technical Comparison Analysis
Power & Displacement
Comparing the Tohatsu MFS100 (4-2-1 Exhaust) and Force 90hp (2-Stroke) shows a displacement difference of 373cc. The Tohatsu features a larger 1995cc 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 Force is the lighter option at 129kg, offering a weight saving of 49kg 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 Tohatsu offers the best charging performance with a 516W 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.