APRILIA V990 Manual page 55

V990 engine
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Carefully read 0.5.1 (PRECAUTIONS AND GENERAL
INFORMATIONS).
NOTE
The following operations can be performed with-
out removing the engine from the frame.
NOTE
The driving shaft must be retained at TDC, see
3.4 (DISASSEMBLING FRONT CYLINDER, HEAD AND
PISTON).
N
Unscrew and remove the six M6 T.E. screws (1).
N
Remove the washer (2), clutch springs (3) and support
plate (4).
N
Remove the complete clutch disengaging shaft (5).
NOTE Have the appropriate special tool m to hand:
– aprilia part# 8140185 (clutch disc extraction hook le-
ver) (9).
NOTE
The lower clutch discs can only be removed in-
dividually with the aid of the appropriate hook levers (9).
N
Remove the lined discs (6) and steel discs (7) from the
clutch housing (8).
NOTE Have the appropriate special tool m to hand:
– aprilia part# 0277881 (clutch blocking tool) (10).
N
Insert the clutch blocking tool (10) in the clutch housing
(8) and on the clutch hub (11).
a
CAUTION
Insert the clutch blocking tool all the way into the
clutch drum so as not to damage the basket when
loosening the hex-head nut.
N
Unscrew and remove the M24x1.5 T.E. nut (12).
N
Remove the clutch blocking tool (10), spring washer
(13) and clutch hub (11).
N
Take the thrust ring (14).
NOTE
See 4.19 (DISASSEMBLING THE PRIMARY
TRANSMISSION) for instructions on disassembling the
primary transmission.
Release 01/2001-10
DISASSEMBLING THE ENGINE
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