2002 Ducati SuperSport 900 Owners Manual - Page 131

Engine Twin cylinder, four-stroke, 90° "L" type, longitudinal. Bore: 88 mm (750/750Sport); 92 mm (900/900Sport). Stroke: 61.5 mm (750/750Sport); 68 mm (900/900Sport). Total displacement: 748 c.c. (750/750Sport); 904 c.c. (900/900Sport). Compression ratio: 9.0±0.5:1 (750/750Sport); 9.2±0.5:1 (900/900Sport). Max. power at crankshaft (95/1/CE): 47 kW - 64 HP at 8250 rpm (750/750Sport); 59 kW - 80 HP at 7500 rpm (900/900Sport). Max torque at crankshaft (95/1/CE): 60 Nm at 6000 rpm (750/750Sport); 79 Nm at 6500 rpm (900/900Sport). Max. rotation speed 9000 rpm Important Do not exceed specified rotation speed limits under any running condition. Timing system Desmodromic (type) with two valves per cylinder, operated by four rockers (2 opening rockers and 2 closing rockers) and an overhead camshaft. It is operated by the crankshaft through spur gears, belt rollers and toothed belts. Desmodromic timing system (fig. 76) 1) Opening (or upper) rocker. 2) Opening rocker shim. 3) Split rings. 4) Closing (or lower) rocker shim. 5) Return spring for lower rocker. 6) Closing (or lower) rocker. 7) Camshaft. 8) Valve. 1 E 5 2 3 4 6 7 8 fig. 76 61