Description by ManufacturerEngine TypeInline 4Displacement1.8LBore x Stroke81 x 88.9mm (3.19 x 3.5 in)Prop Shaft Horsepower90hp 5500 rpmFull Throttle RPM Range5000 ~ 6000Alternator Output at W.O.T.35 AmpCompression Ratio10.0:1Fuel Induction SystemEFIWeight †160kg (353 lbs) - 164kg (362 lbs)Recommended FuelOctane 87Recommended Engine OilYamalube® 4M (See owner's manual)Recommended Fuel FiltrationYamaha 10-Micron Fuel/Water Separating Filter (external)C.A.R.B. Rating3-StarExhaustThrough PropellerIntake16IgnitionTCI MicrocomputerSpark PlugLFR6A-11Alternator Output35 AmpStarting SystemElectricLubricationWet SumpEngine Oil Capacity3.2/3.0LRecommended CoolingThermostatic ControlEthanol Blend Limit10% MaximumGear Ratio2.15:1Gear ShiftForward, Neutral, ReverseShaft Length20" - 25"Degree of Tilt70Degree of Trim-4° through +66°Dry Weight20" shaft / 160kg (353 lbs), 25" shaft / 164kg (363 lbs)Mounting Centers26"Steering Angle (maximum)35° from center, either directionWarrantyLimited 3-year Pleasure, 3-year Government, 1-Year Commercial