
Ricomposizione motore
Engine reassembly
15
sezione / section
A
A
B
C
D
E
F
G
Generalità
Description
999RS04
999RS - M.Y. 2004 - edizione/edition 01
Engine
Reference
Technical specifications
Type
4-stroke 90° L twin-cylinder (Otto engine)
Bore
104 mm
Stroke
58.8 mm
Total displacement
999 cu. cm
Compression ratio
15.8
Max. power at crankshaft (95/1/CE)
138.2 kW (188HP)
at
12,500 rpm
Max. torque at crankshaft (95/1/EC)
110 Nm (11.2 kgm)
at
11,000 rpm
Timing system
Reference
Technical specifications
Type
Double overhead camshaft, 4 valves per
cylinder, driven by toothed belt and aluminium
roller. Desmodromic system.
Timing diagram
With belt tension of 280 ± 5 Hz measured along the belt portion between driven
belt rollers with tool CLAVIS BELT TENSION METER with valve clearance = 0 mm
and valve lift = 5 mm
Intake valve opens
20° after TDC
Intake valve closes
29° after BDC
Exhaust valve opens
31° before BDC
Exhaust valve closes
24° before TDC
Valve diameter
Intake valve
43.5 mm
Exhaust valve
35.5 mm
Valve lift
Intake valve
15.25 mm
Exhaust valve
14 mm
Valve clearance
0 mm
Tappet clearances
Upper clearance (opening) - Intake
0.14 ÷ 0.19 mm
(with the engine cold)
Upper clearance (opening) - Exhaust
0.19 ÷ 0.24 mm
Lower clearance (closing) - Intake
0.13 ÷ 0.18 mm
Lower clearance (closing) - Exhaust
0.08 ÷ 0.13 mm
TECHNICAL SPECIFICATIONS
Содержание 2004 999RS04
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Страница 5: ...Generalit Description A B C D E F G...
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Страница 21: ...Interventi raccomandati Maintenance schedule A B C D E F G...
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Страница 59: ...Scomposizione motore Engine disassembly A B C D E F G...
Страница 85: ...Revisione motore Engine overhaul A B C D E F G...
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Страница 121: ...Ricomposizione motore Engine reassembly A B C D E F G...
Страница 182: ...Elettronica e gestione motore Engine managing and electronic systems A B C D E F G...
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