Specification2023 Mercury 100 FourStroke2023 Yamaha F100FEHA
ManufacturerMercuryYamaha
Model100 FourStrokeF100FEHA
Year20232023
Horsepower100 HP100 HP
Engine Type4-stroke4-stroke
Cylinders44
Displacement1,660 cc1,564 cc
Bore × Stroke82.2 × 78.3 mm80.0 × 77.7 mm
RPM Range5,200–5,900 RPM5,300–6,300 RPM
Fuel SystemEFIEFI
Fuel TypeRegularRegular
Weight168 kg (370 lbs)158 kg (349 lbs)
Starting SystemElectricElectric
SteeringRemoteRemote
Shaft LengthsL/XLL/XL
Gear Ratio2.33:12.00:1
Alternator37 A34 A
Trim & TiltPower Trim/TiltPower Trim/Tilt
Prop Output67.11 kW63.38 kW
Recommended Boat17–24 ft17–24 ft
MSRP$14,140$14,040
Better / Advantage Lower / Disadvantage Equal / Neutral

2023 Mercury 100 FourStroke vs 2023 Yamaha F100FEHA — Which Is Better?

Choosing between the 2023 Mercury 100 FourStroke and the 2023 Yamaha F100FEHA comes down to your specific boating needs and priorities.

The 2023 Mercury 100 FourStroke (2023) is a 100hp 4-stroke outboard from Mercury, weighing 168 kg (370 lbs). Its electronic fuel injection delivers reliable starts and improved fuel economy compared to carbureted alternatives. Power trim and tilt makes it easy to adjust on the water.

The 2023 Yamaha F100FEHA offers 100hp with 4-stroke technology, tipping the scales at 158 kg (349 lbs). Its more compact 1,564 cc displacement keeps weight down while maintaining efficiency.

At 158 kg (349 lbs), the 2023 Yamaha F100FEHA is the lighter option — an important consideration for smaller boats, portability, and overall fuel efficiency.

Both motors are solid choices in the 100 HP class. Your final decision should factor in your boat size, typical use conditions, dealer availability in your area, and budget.