Engine: Bore Stroke: 90.0 mm (3.543 in) x 62.6 mm (2.465 in) , Compression Ratio :11.3 : 1 , Engine: 4-stroke, liquid-cooled, DOHC , Fuel System :MIKUNI BSR36, single , Ignition :Electronic ignition (CDI) , Lubrication: Dry sump , Starter: Electric ,