Features Specifications: New Yamaha YZF R1 Motorcycle  Engine type  Liquid-cooled, 4-stroke, forward inclined parallel 4-cylinder, 4-valve, DOHC   Displacement  998 cc  Bore & Stroke  77.0 x 53.6 mm  Compression ratio  12.7:1  Maximum power  132.4 kW (180 PS) @ 12,500 rpm*  139.0 kW (189 PS) @ 12,500 rpm**  Maximum torque  112.7 Nm (11.5 kg-m) @ 10,000 rpm*  118.3 Nm (12.1 kg-m) @ 10,000 rpm**  Starting system  Electric  Lubrication  wet sump  Carburettor/Fuel supply  Fuel injection  Clutch type  Wet multiple-disc coil spring  Ignition system  T.C.I  Primary / Secondary reduction ratio  3.042 / 3.000  Transmission type  Constant mesh, 6-speed  Final transmission  Chain