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Mercury 2.5 HP 4 Stroke Outboard Motor Mercury 3.5 HP 4 Stroke Outboard Motor Mercury Racing 300R 1.75RH Sportmaster

HP / kW
  • 2.5 / 1.9
Engine type
  • 1 cylinder
Displacement (CID/CC)
  • 5.2 / 85
Full throttle RPM
  • 4500-5500
Fuel induction system
  • 2-valve pushrod (overhead valve)
Recommended fuel
  • 87 octane compatible (up to 10% ethanol)
Recommended oil
  • Mercury FourStroke Oil 10W-30
Engine protection operator warning system
  • Over-rev
Starting
  • Manual
Steering
  • Tiller with 360° turning
Shaft length
  • 15" / 381 mm
Gearcase ratio
  • 2.15:1
Dry weight *Lightest model available
  • 38 lbs / 17 kg
CARB star rating
  • 3
Bore and stroke
  • 2.16 x 1.42" / 55 x 36 mm
Ignition
  • CDI w/electronic spark advance
Fuel system
  • Carbureted
Cooling system
  • Water-cooled with thermostat
Gear shift
  • F-N
Gearcase options
  • Standard
Trim system
  • 4 position
Trim positions
  • 4
Exhaust system
  • Above prop
Shallow water trim range (degrees)
  • 16
Integrated fuel tank (gal / L)
  • 0.3 / 1.1
Color
  • Phantom Black

HP / kW
  • 3.5 / 2.6
Engine type
  • 1 cylinder
Displacement (CID/CC)
  • 5.2 / 85
Full throttle RPM
  • 5000-6000
Fuel induction system
  • 2-valve pushrod (overhead valve)
Recommended fuel
  • 87% octane / up to 10% ethanol
Recommended oil
  • Mercury FourStroke Oil 10W-30
Engine protection operator warning system
  • Over-rev
Starting
  • Manual
Steering
  • Tiller with 360° turning
Shaft length
  • 15" / 381 mm
  • 20" / 508 mm
Gearcase ratio
  • 2.15:1
Dry weight *Lightest model available
  • 38 lbs / 17 kg
CARB star rating
  • 3
Bore and stroke
  • 2.16 x 1.42" / 55 x 36 mm
Ignition
  • CDI w/electronic spark advance
Fuel system
  • Carbureted
Cooling system
  • Water-cooled with thermostat
Gear shift
  • F-N
Gearcase options
  • Standard
Trim system
  • 4 position
Trim positions
  • 4
Exhaust system
  • Above prop
Shallow water trim range (degrees)
  • 16
Integrated fuel tank (gal / L)
  • 0.3 / 1.1
Color
  • Phantom Black

The 300R FourStroke is the highest performing engine in its class. The naturally aspirated 4.6L V-8 provides an astounding 44% in increased displacement and up to 40% higher overall bottom end torque than the legacy two-stroke 300XS it replaces. Custom Racing intake cam profiles and short intake manifold runners maximize power throughout the rated speed range. An integrated oil cooler keeps oil temps down throughout the Racing exclusive 5800-6400 rpm operating range.

Transient spark calibration boosts torque by 7% for unmatched acceleration. Advanced Range Optimization automatically adjusts fuel delivery for up to 10% improvement in cruise-speed fuel efficiency.

All of this on 87-octane (90 RON) pump fuel while maintaining a comparable weight as it’s legacy two-stroke cousin. Best of all, the 300R is backed by a three-year factory warranty.

Due to the many options and configurations that the new 300R can be ordered, please call Fallon Marine and speak to one of our product specialists so we can match your needs to your new power. For Specs, Pricing, and Availability 928.302.4447