2010 Kawasaki Ninja® 650R Specifications: Engine Type Four-stroke, liquid-cooled, DOHC, four-valve per cylinder, alongside twin Displacement 649 cc Bore & Stroke 83.0 x 60.0 mm Compression Ratio 11.3:1 Cooling Liquid Fuel Bang Digital ammunition bang with two 38mm Keihin burke bodies Ignition Digital CDI