2023 Yamaha F9.9SMHB VS 2025 Mercury 9.9 FourStroke
Detailed side-by-side comparison of the 2023 Yamaha F9.9SMHB and 2025 Mercury 9.9 FourStroke outboard motors.
| Specification | 2023 Yamaha F9.9SMHB | 2025 Mercury 9.9 FourStroke |
|---|---|---|
| Manufacturer | Yamaha | Mercury |
| Model | F9.9SMHB | 9.9 FourStroke |
| Year | 2023 | 2025 |
| Horsepower | 10 HP | 10 HP |
| Engine Type | 4-stroke | 4-stroke |
| Cylinders | 2 | 2 |
| Displacement | 218 cc | 218 cc |
| Bore × Stroke | 51.8 × 51.8 mm | 52.6 × 50.1 mm |
| RPM Range | 5,100–5,900 RPM | 5,000–5,900 RPM |
| Fuel System | EFI | EFI |
| Fuel Type | Regular | Regular |
| Weight | 42 kg (92 lbs) | 43 kg (94 lbs) |
| Starting System | Electric/Manual | Electric/Manual |
| Steering | Both | Both |
| Shaft Lengths | S/L | S/L |
| Gear Ratio | 2.08:1 | 2.15:1 |
| Alternator | 10 A | 6 A |
| Trim & Tilt | Manual | Manual |
| Prop Output | 6.41 kW | 6.26 kW |
| Recommended Boat | 10–15 ft | 10–15 ft |
| MSRP | $2,940 | $3,380 |
Better / Advantage
Lower / Disadvantage
Equal / Neutral
2023 Yamaha F9.9SMHB vs 2025 Mercury 9.9 FourStroke — Which Is Better?
Choosing between the 2023 Yamaha F9.9SMHB and the 2025 Mercury 9.9 FourStroke comes down to your specific boating needs and priorities.
The 2023 Yamaha F9.9SMHB (2023) is a 10hp 4-stroke outboard from Yamaha, weighing 42 kg (92 lbs). Its electronic fuel injection delivers reliable starts and improved fuel economy compared to carbureted alternatives.
The 2025 Mercury 9.9 FourStroke offers 10hp with 4-stroke technology, tipping the scales at 43 kg (94 lbs).
Both motors are solid choices in the 9.9 HP class. Your final decision should factor in your boat size, typical use conditions, dealer availability in your area, and budget.