MV Agusta F4

The F4 engine is a liquid cooled inline four cylinder four-stroke with two overhead camshafts (DOHC), 16 radial valves, electronic multipoint injection, induction discharge electronic ignition, with engine displacements of 749.5 cc (45.74 cu in), 998 cc (60.9 cu in), and 1,078 cc (65.8 cu in).