Engine and transmission Displacement 670.0 ccm (40.88 cubic inches) Engine type Twin, four-stroke Compression 10.7:1 Bore x stroke 73.0 x 80.0 mm (2.9 x 3.1 inches) Valves per cylinder 4 Fuel system Injection. PGM-FI with 36mm throttle body Fuel control Single Overhead Cams (SOHC) Ignition Digital transistorized with electronic advance Cooling system Liquid Gearbox 6-speed Transmission type Chain (final drive) Fuel consumption 3.86 litres/100 km (25.9 km/l or 60.94 mpg) Greenhouse gases 89.6 CO2 g/km. (CO2 - Carbon dioxide emission)