Mercury FourStroke 2.5 HP Outboard Motor 2024

Mercury 2.5 HP FourStroke 2024: Amazing Power in the Palm of Your Hand

The 2024 Mercury 2.5 HP FourStroke weighs in at just 38 lbs, making it a superb grab-and-go choice for aluminum tiller boats, inflatable soft hulls, jons, utility boats, and sailboats. Its 85cc (5.2 cu in) OHV single runs a 4,500–5,500 rpm WOT range with CDI ignition and electronic spark advance for reliable starting and instant throttle response. The F-N shift pairs with full 360° tiller steering for reverse maneuvering, the integral fuel tank keeps rigging simple, and a 2.15:1 gear ratio swings an efficient prop. A confident entry to the 2.5HP outboard class.

Key Features (2024)

• 38 lbs — genuinely one-hand portable
• 85cc OHV single — quick acceleration, low vibration
• CDI ignition with electronic spark advance
• F-N shift + 360° tiller steering; integral fuel tank

Specifications

• Engine: 1-cylinder OHV four stroke, 85cc (5.2 cu in)
• Horsepower: 2.5 HP (WOT 4,500–5,500 rpm)
• Starting: Manual
• Steering: Tiller, 360°
• Gearshift: F-N; ratio 2.15:1
• Fuel: Integral tank, 87 octane
• Shaft: 15″ (S)
• Weight: 38 lbs

Benefits & Applications

Light enough for anyone to carry, simple enough for anyone to run — for dinghies, tenders, canoes, jons, and sailboat auxiliary duty. Rivals: Yamaha F2.5 2024, Honda BF2.3 2024. More power: Mercury 3.5 HP 2024.

Compare Model Years

See the 2.5 HP 2025 and 2.5 HP 2026, all Mercury Outboards, or the Mercury brand guide.

Frequently Asked Questions

How heavy is the Mercury 2.5 FourStroke?

Just 38 lbs — among the lightest in the class.

Does it have reverse?

No reverse gear — the 360° tiller steering rotates the engine for full reverse thrust.

What fuel does it use?

Regular 87-octane gasoline (up to 10% ethanol) from its integral tank.