Specification 2025 Mercury 25 FourStroke 2025 Yamaha F25SMHA
Manufacturer Mercury Yamaha
Model 25 FourStroke F25SMHA
Year 2025 2025
Horsepower 25 HP 25 HP
Engine Type 4-stroke 4-stroke
Cylinders 2 2
Displacement 473 cc 518 cc
Bore × Stroke 69.0 × 63.3 mm 70.2 × 66.9 mm
RPM Range 5,100–5,900 RPM 5,200–5,800 RPM
Fuel System EFI EFI
Fuel Type Regular Regular
Weight 67 kg (147 lbs) 61 kg (134 lbs)
Starting System Electric/Manual Electric/Manual
Steering Both Both
Shaft Lengths S/L S/L
Gear Ratio 2.00:1 1.92:1
Alternator 16 A 16 A
Trim & Tilt Manual Power Tilt
Prop Output 15.47 kW 16.03 kW
Recommended Boat 12–17 ft 12–17 ft
MSRP $5,520 $5,320
Better / Advantage Lower / Disadvantage Equal / Neutral

2025 Mercury 25 FourStroke vs 2025 Yamaha F25SMHA — Which Is Better?

Choosing between the 2025 Mercury 25 FourStroke and the 2025 Yamaha F25SMHA comes down to your specific boating needs and priorities.

The 2025 Mercury 25 FourStroke (2025) is a 25hp 4-stroke outboard from Mercury, weighing 67 kg (147 lbs). Its electronic fuel injection delivers reliable starts and improved fuel economy compared to carbureted alternatives.

The 2025 Yamaha F25SMHA offers 25hp with 4-stroke technology, tipping the scales at 61 kg (134 lbs). With a larger displacement of 518 cc, it can deliver more torque at lower RPMs.

At 61 kg (134 lbs), the 2025 Yamaha F25SMHA is the lighter option — an important consideration for smaller boats, portability, and overall fuel efficiency.

Both motors are solid choices in the 25 HP class. Your final decision should factor in your boat size, typical use conditions, dealer availability in your area, and budget.