250R Racing Outboard
Mercury
The 250R FourStroke pumps out 250 propshaft horsepower. The stout V-8 powerhead provides an astounding 53% increased displacement and up to 40% higher overall bottom-end torque than the legacy two-stroke 250XS it replaces.
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 to the 250 XS.
Best of all, the new 250R are backed by a three-year factory warranty.
SPECIFICATIONS:
- RATED HORSEPOWER (HP/KW) 250/186
- BORE & STROKE (IN/MM) 3.6 X 3.4/92 X 86
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IDLE RPM 600
- MAX RPM AT FULL THROTTLE 5800-6200
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CYLINDERS/ENGINE CONFIGURATION V-8 (64 Degree) With 32-Valve Dual Overhead Cam (DOHC)
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DISPLACEMENT (LITER/CID) 4.6/279
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INDUCTION SYSTEM Performance-Tuned Long Runner Intake Manifold
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FUEL SYSTEM Electronic Fuel Injection (EFI) Computer Controlled With Advanced Range Optimization
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FUEL REQUIREMENTS Unleaded Regular 87 Octane Minimum (R+M/2) Or 90 RON
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IGNITION SYSTEM SmartCraft PCM 112 Digital Inductive
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CHARGING SYSTEM 85-Amp (1071 Watt)
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STARTING Electric Start With SmartStart Protection
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LUBRICATION SYSTEM Integrated Wet Sump
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OIL REQUIREMENT NMMA Certified FCW SAE 10W-30
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THROTTLE AND SHIFT CONTROLS Mechanical
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MIDSECTION DESIGN Tri-Ram Midsection With High-Durometer Elastomer Upper Mount And Solid Lower Mounts
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SHAFT LENGTH (IN./MM.) 20/508
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GEARCASE Sport Master
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GEAR RATIO 1.75:1
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WEIGHT (LBS./KGS.) 520/236
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WARRANTY 3-Year Limited