Specification2023 Yamaha F4SMHA2024 Mercury 4 FourStroke
ManufacturerYamahaMercury
ModelF4SMHA4 FourStroke
Year20232024
Horsepower4 HP4 HP
Engine Type4-stroke4-stroke
Cylinders11
Displacement125 cc127 cc
Bore × Stroke56.3 × 50.2 mm55.7 × 52.1 mm
RPM Range4,700–5,500 RPM4,600–5,800 RPM
Fuel SystemCarburetedCarbureted
Fuel TypeRegularRegular
Weight27 kg (58 lbs)29 kg (64 lbs)
Starting SystemElectric/ManualElectric/Manual
SteeringTillerTiller
Shaft LengthsSS
Gear Ratio2.15:12.15:1
AlternatorN/AN/A
Trim & TiltManualManual
Prop Output2.57 kW2.39 kW
Recommended Boat8–12 ft8–12 ft
MSRP$1,640$1,710
Better / Advantage Lower / Disadvantage Equal / Neutral

2023 Yamaha F4SMHA vs 2024 Mercury 4 FourStroke — Which Is Better?

Choosing between the 2023 Yamaha F4SMHA and the 2024 Mercury 4 FourStroke comes down to your specific boating needs and priorities.

The 2023 Yamaha F4SMHA (2023) is a 4hp 4-stroke outboard from Yamaha, weighing 27 kg (58 lbs).

The 2024 Mercury 4 FourStroke offers 4hp with 4-stroke technology, tipping the scales at 29 kg (64 lbs). With a larger displacement of 127 cc, it can deliver more torque at lower RPMs.

Both motors are solid choices in the 4 HP class. Your final decision should factor in your boat size, typical use conditions, dealer availability in your area, and budget.