Yamaha 425 HP Outboard Motor

^{Engine Type}	^{V8 / DOHC / 32 valves / 4 Valves per Cylinder}
^Displacement	^5.6L
^{Bore x Stroke}	^{96 x 96 mm (3.78 x 3.78 in)}
^{Prop Shaft Horsepower}	^{425hp at 5500 RPM}
^{Full Throttle RPM Range}	^{5000 – 6000 RPM}
^{Alternator Output at W.O.T.}	^{90 Amp Gross, Max}
^{Compression Ratio}	^12.2:1
^{Fuel Induction System}	^{Direct Injection / Up to 2900 PSI}
^Weight*	^{432 kg (952 lbs) / 443 kg (977 lbs) / 453 kg (999 lbs)}
^{Recommended Fuel}	^{Octane 89}
^{Recommended Engine Oil}	^{Yamalube® 4M (See owner’s manual)}
^{Recommended Fuel Filtration}	^{Yamaha 10-Micron Fuel / Water Separating Filter (external)}
^{C.A.R.B. Rating}	^3-Star
^Exhaust	^{Through Propeller (Except in Reverse Under 2500 RPM)}
^Intake	³²
^Ignition	^{TCI Microcomputer}
^{Spark Plug}	^{ILMAR7E-9 / Iridium}
^{Alternator Output}	^{90 Amps Gross, Max}
^{Starting System}	^{Electric w/ PTT}
^Lubrication	^{Wet Sump}
^{Engine Oil Capacity}	^{7.8L / 8.2 Quarts \| 7.5L / 7.9 Quarts}
^{Recommended Cooling}	^{Thermostatic Control}
^{Ethanol Blend Limit}	^{10% Maximum}
^{Gear Ratio}	^{(25/14) 1.79}
^{Gear Shift}	^{Forward, Neutral, Reverse}
^{Shaft Length}	^{25″ – 30″ – 35″}
^{Degree of Tilt}	^{-4° through +73°}
^{Degree of Trim}	^{-4° through +16°}
^{Dry Weight}	^{25″ shaft / 432 kg (952 lbs) ; 30″ shaft / 443 kg (977 lbs; 35″ shaft / 453 kg (999 lbs)}
^{Mounting Centers}	^28.5″
^Steering	^{Integrated, Electric Actuation}
^{Steering Angle (maximum)}	^{31° from center, either direction}
^Warranty	^{Limited 5-Year Pleasure, 3-Year Government, 1-Year Commercial}

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