Ducati 749R User Manual

E
82
Engine
Twin cylinder, four-stroke, 90° “L” type, longitudinal.
Bore:
94
Stroke:
54
Total displacement:
749
Compression ratio:
12,7±0,5:1
Max power at crankshaft (95/1/EC):
86,5 kW - 118 CV a 10.250 min
-1
Max torque at crankshaft (95/1/EC):
81,5 Nm a 8.250 min
-1
Max rotation speed:
11.500
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) 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.
6
1 2 3
7
5 4
fig. 81

Ducati 749R Specifications

General

Bore x Stroke	94 mm x 54 mm
Transmission	6-speed
Frame	Tubular steel trellis frame
Exhaust	2-1-2 system with catalytic converter and lambda probe
Final Drive	Chain; front sprocket 15; rear sprocket 39
Front Wheel Travel	120 mm
Front Brakes	2 x 320 mm semi-floating discs, 4-piston calipers
Rear Brakes	245 mm disc, 2-piston caliper
Front Tyre	120/70 ZR17
Rear Tyre	180/55 ZR17
Engine Type	L-Twin cylinder, 4 valve per cylinder desmodromic
Power	89 kW (121 hp) @ 10, 250 rpm
Torque	84 Nm (62 lb-ft) @ 8, 500 rpm
Fuel Injection	Electronic fuel injection, 54 mm throttle bodies
Front Suspension	43 mm upside-down fork
Rear Suspension	Fully adjustable monoshock
Rear Wheel Travel	128 mm
Wheelbase	1, 420 mm
Fuel Capacity	15.5 L (including 3.5 L reserve)