Engine TypeInline 4Displacement2.7L (Mechanical) / 2.8L (DEC)Bore x Stroke94 x 96.2 (3.70 x 3.79in) - 96 x 96.2mm (3.78 x 3.79in)Prop Shaft Horsepower150hp 5500 rpmFull Throttle RPM Range5000 ~ 6000 rpmAlternator Output at W.O.T.35 - 50 AmpCompression Ratio9.0:1 & 10.3:1Fuel Induction SystemEFIWeight*20" shaft / 217kg (478 lbs), 25" shaft / 221kg (487 lbs)Recommended FuelOctane 87 & Octane 89Recommended Engine OilYamalube® 4M (See owner's manual)Recommended Fuel FiltrationYamaha 10 Micron Fuel/Water Separating Filter (external)

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