Mercury 2.5 HP Twostroke

Mercury 2.5 HP Twostroke – Ultimate Portability Compact and lightweight in design, Mercury TwoStroke portables are ideal for inflatables, car toppers and small tinnies.

Calculate your fuel savings

The Mercury Fuel Savings Calculator will allow you to easily calculate the possible fuel savings of a Mercury FourStroke outboard!

Choose how you use your boat, select the TwoStroke and FourStroke horsepower – and our tool will show your potential fuel savings. If you're looking to upgrade or add more power, you can even choose different FourStroke and TwoStroke horsepower options!


Easy to handle with conveniently located carrying handles and grips.


With proven reliability around the world. 

Instant Start.

Easy starting with modular electronic CD ignition. And very simple to maintain too.

HP / kW
  • 2.5 / 1.9
Displacement (CID/CC)
  • 4.6 / 74.6
Cylinder Configuration
  • 1
Full throttle RPM
  • 4200 – 5200
  • Manual
  • Tiller with 360° turning
Shaft length
  • 15″ / 381 mm
Gearcase ratio
  • 1.85 : 1
Dry weight *Lightest model available
  • 13
Emissions Star Rating
  • 0
Bore and stroke
  • 47 x 43
Trim system
  • 4 position
Trim positions
  • 4
Oil Injection
  • Pre-mix

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