Caratteristiche tecniche
Specifications
sezione / section
C 1.1
12
A
B
C
D
E
F
G
H
L
M
N
P
749/749 DARK/749S Aggiornamento/Update - M.Y. 2006 - edizione/edition 00
Timing system/valves
Cylinder/Piston
Reference Assembly value Max. permissible value
Timing diagram With 1 mm valve clearance
(749/749 DARK) Intake Opening 15° B.T.D.C.
Closing 46° A.B.D.C
Exhaust Opening 53° B.B.D.C.
Closing 11° A.T.D.C.
Intake valve diameter
Exhaust valve diameter
37 mm
30.5 mm
(749S) Intake Opening 21° B.T.D.C.
Closing 57° A.B.D.C
Exhaust Opening 66° B.B.D.C.
Closing 20° A.T.D.C.
Intake valve diameter
Exhaust valve diameter
38 mm
30.5 mm
Valve lift (749/749 DARK) With 0 mm valve clearance Intake 10.2 mm
Exhaust 9.1 mm
Opening rocker arm - intake 0.18 ± 0.23 mm. 0.10 ± 0.25 mm.
Opening rocker arm - exhaust 0.13 ± 0.18 mm. 0.10 ± 0.25 mm.
Closing rocker arm - intake 0.18 ± 0.23 mm. 0.10 ± 0.25 mm.
Closing rocker arm - exhaust 0.13 ± 0.18 mm. 0.10 ± 0.25 mm.
Belt tensioning DDS 110 Hz (horizontal)
110 Hz (vertical)
110 Hz (horizontal)
110 Hz (vertical)
Valve lift (749S) With 0 mm valve clearance Intake 11.4 mm
Exhaust 10.2 mm
Opening rocker arm - intake 0.18 ± 0.23 mm. 0.10 ± 0.25 mm.
Opening rocker arm - exhaust 0.13 ± 0.18 mm. 0.10 ± 0.25 mm.
Closing rocker arm - intake 0.18 ± 0.23 mm. 0.10 ± 0.25 mm.
Closing rocker arm - exhaust 0.13 ± 0.18 mm. 0.10 ± 0.25 mm.
Belt tensioning DDS 110 Hz (horizontal)
110 Hz (vertical)
110 Hz (horizontal)
110 Hz (vertical)
Reference Standard value Max. permissible value
Cylinder Max. out of round 0.03 mm
Max. taper 0.03 mm
Diameter
Class A
Class B
Class C
90.000 mm
90.010 mm
90.020 mm
0 – 0.01 mm.
0 – 0.01 mm.
0 – 0.01 mm.
Piston Diameter
Class A
Class B
Class C
89.940 mm
89.950 mm
89.960 mm
± 0.0005 mm
± 0.0005 mm
± 0.0005 mm
Piston outer diameter
measured at 6.0 mm
from piston base
0 - 0,010 mm
Connecting rod Big-end bore diameter A 45.025
B 45.013
Gudgeon pin–piston
clearance
0.010 - 0.018 mm 0.035 mm
Piston clearance in cylinder
bore
0.055 – 0.075 mm 0.12 mm
To Next Page
Loading...
