Specification2025 Mercury 25 FourStroke2025 Yamaha F25SMHA
ManufacturerMercuryYamaha
Model25 FourStrokeF25SMHA
Year20252025
Horsepower25 HP25 HP
Engine Type4-stroke4-stroke
Cylinders22
Displacement473 cc518 cc
Bore × Stroke69.0 × 63.3 mm70.2 × 66.9 mm
RPM Range5,100–5,900 RPM5,200–5,800 RPM
Fuel SystemEFIEFI
Fuel TypeRegularRegular
Weight67 kg (147 lbs)61 kg (134 lbs)
Starting SystemElectric/ManualElectric/Manual
SteeringBothBoth
Shaft LengthsS/LS/L
Gear Ratio2.00:11.92:1
Alternator16 A16 A
Trim & TiltManualPower Tilt
Prop Output15.47 kW16.03 kW
Recommended Boat12–17 ft12–17 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.