Mercury 2.5 HP FourStroke 2025: The 38-Pound Adventure Starter
The 2025 Mercury 2.5 HP FourStroke keeps its winning brief: 38 lbs of 85cc OHV four stroke with CDI ignition and electronic spark advance, F-N shift with 360° tiller steering, integral fuel tank, and a 4,500–5,500 rpm WOT range. Reliable starting, low vibration, and instant throttle response define the value end of the 2.5HP outboard class.
Key Features (2025)
- 38 lbs — effortless portability
- 85cc OHV single; CDI with electronic spark advance
- F-N shift + 360° steering; integral tank
- 2.15:1 gear ratio
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
For dinghies, tenders, canoes, jons, utility boats, and sailboat kickers. Rivals: Suzuki DF2.5 2025, Honda BF2.3 2025. Step up: Mercury 3.5 HP 2025.
Compare Model Years
See the 2.5 HP 2024 and 2.5 HP 2026, all Mercury Outboards, or the Mercury brand guide.
Frequently Asked Questions
What does the 2025 model cost?
$1,220, in stock.
What’s the WOT range?
4,500–5,500 rpm.
Best boats?
Dinghies, inflatables, canoes, jon and utility boats, and sailboats.


