2005 Ducati Superbike 749R Owners Manual - Page 176

Engine Twin cylinder, four-stroke, 90° "L" type, longitudinal. Bore, mm: 94 Stroke, mm: 54 Total displacement, cm3: 749 Compression ratio: 12.7±0.5:1 Max power at crankshaft (95/1/EC): 86.5 kW -117.6 HP at 10,250 rpm Max torque at crankshaft (95/1/EC): 81.5 Nm at 8,250 rpm Max rotation speed, rpm : 11.300 Important Do not exceed specified rotation speed limits under any running condition. Timing system Desmodromic (type) with four valves per cylinder, operated by eight rocker arms (4 opening rockers and 4 closing rockers) and two overhead camshafts. It is operated by the crankshaft through spur gears, belt rollers and toothed belts. Desmodromic timing system (fig. 81) 1) 2) 3) 4) 5) 6) 7) Opening (or upper) rocker; Opening rocker shim; Closing (or lower) rocker shim; Return spring for lower rocker; Closing (or lower) rocker; Camshaft; Valve. E 6 1 2 3 7 5 4 fig. 81 83