Yamaha

Engine Type : Inline 4 Displacement : 1.8L Bore x Stroke : 81 x 88.9mm (3.19 x 3.5 in) Prop Shaft Horsepower : 90hp @ 5500 rpm Full Throttle RPM Range : 5000 ~ 6000 Alternator Output at W.O.T. : 35 Amp Compression Ratio : 10.0:1 Fuel Induction System : EFI Weight* : 160kg (353 lbs) - 164kg (362 lbs) Recommended Fuel : Octane 87 Recommended Engine Oil : Yamalube® 4M (See owner's manual) Recommended Fuel Filtration : Yamaha 10-Micron Fuel/Water Separating Filter (external)