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 Optimisation (ARO) automatically adjusts fuel delivery for up to 10% improvement in cruise-speed fuel efficiency. All of this on regular 91-RON Unleaded fuel, while maintaining a comparable weight to the 250 XS.
Spesifications RATED HORSEPOWER (HP/KW)Â 250/186 BORE & STROKE (IN/MM)Â 3.6 x 3.4/92 x 86 IDLE RPMÂ 600 MAX RPM AT FULL THROTTLEÂ 5800-6200 CYLINDERS/ENGINE CONFIGURATIONÂ V-8 (64 degree) with 32-valve Dual Overhead Cam (DOHC) DISPLACEMENT (LITER/CID)Â 4.6/279 INDUCTION SYSTEMÂ Performance-Tuned Long Runner Intake Manifold FUEL SYSTEMÂ Electronic Fuel Injection (EFI) Computer Controlled with Advanced Range Optimization FUEL REQUIREMENTSÂ Unleaded Regular 87 Octane Minimum (R+M/2) or 90 RON IGNITION SYSTEMÂ SmartCraft PCM 112 Digital Inductive CHARGING SYSTEMÂ 85-amp (1071 Watt) STARTINGÂ Electric Start with SmartStart Protection LUBRICATION SYSTEMÂ Integrated wet sump OIL REQUIREMENTÂ NMMA Certified FCW SAE 10W-30 THROTTLE AND SHIFT CONTROLSÂ Mechanical MIDSECTION DESIGNÂ Tri-Ram Midsection with High-Durometer Elastomer Upper Mount and Solid Lower Mounts SHAFT LENGTH (IN./MM.)Â 20/508 GEARCASEÂ Sport Master GEAR RATIOÂ 1.75:1 WEIGHT (LBS./KGS.)Â 520/236 WARRANTYÂ 3-Year Limited Engine 1 Engine Make Mercury - Visit our website to view more products like this
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