Ducati 999 User Manual

87
E
6
1 2 3
7
5 4
fig. 80
Engine
Twin cylinder, four-stroke, 90° “L” type, longitudinal.
Bore:
100 mm (999/999S)
Stroke:
63.5 mm (999/999S)
Total displacement:
998 cu.cm. (999/999S)
Compression ratio:
1:11.4±0.5 (999/999S)
Max. power at crankshaft (95/1/EC):
91 kW - 124 HP at 9500 rpm (999)
100 kW - 136 HP at 9750 rpm (999S)
Max torque at crankshaft (95/1/EC):
102 Nm at 8000 rpm (999)
106 Nm at 8000 rpm (999S)
Max. rotation speed:
11500 rpm (999/999S)
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. 80)
1) Opening (or upper) rocker.
2) Opening rocker shim.
3) Closing (or lower) rocker shim.
4) Return spring for lower rocker.
5) Closing (or lower) rocker.
6) Camshaft.
7) Valve.

Ducati 999 Specifications

General

Compression Ratio	11.4:1
Transmission	6-speed
Fuel Tank Capacity	15.5 l (4.1 US gal)
Rear Suspension	Progressive linkage with fully adjustable Showa monoshock
Front Brakes	2 x 320 mm discs, 4-piston calipers
Rear Brakes	240 mm disc, 2-piston caliper
Tire Front	120/70 ZR 17
Tire Rear	190/50 ZR 17
Engine Type	L-Twin cylinder, 4 valves per cylinder Desmodromic
Bore x Stroke	100 mm x 63.5 mm
Power	104 kW (141 hp) @ 9750 rpm
Torque	110 Nm (81.4 lb-ft) @ 8000 rpm
Front Suspension	Showa 43 mm upside-down fork, fully adjustable