2006 Ducati Superbike 749 Dark Owners Manual - Page 183

E Engine Twin cylinder, four-stroke, 90° "L" type, longitudinal. Bore mm: 90 (749/749S/749Dark). Stroke mm: 58.8 (749/749S/749Dark). Total displacement cm3: 748 (749/749S/749Dark). Compression ratio: 11,7±0,5:1 (749/749Dark); 12,3±0,5:1(749S). Max power at crankshaft (95/1/EC), kW/HP: 76/103 at 10,000 rpm (749/749Dark); 81/110 at 10,500 rpm (749S); Max torque at crankshaft (95/1/EC): 77 Nm at 8,500 rpm (749/749Dark); 78 Nm at 8,500 rpm (749S); Max rotation speed, rpm. 11.200 Important Do not exceed specified rpm limits in 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. 82) 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. 6 1 2 3 7 5 4 fig. 82 86