2
49
E
N
G
IN
E ASS
E
M
B
LY AN
D CO
NTRO
LS
Make sure the piston oil jets
7
are positio-
ned correctly and free of obstructions.
Make sure the O-rings
8
are positioned
correctly, checking their status. Should the
O-rings have cracks or deformations, they
must be replaced.
Piston oil jet O-ring and detail of passage hole.
9
8
Elements present on outside left crankcase half.
EXTERNAL LEFT SIDE
Make sure the calibrated screw
1
and the jet
2
are not obstructed. Should they have been repla-
ced, couple them to the crankcase using a small
amount of medium strength threadlocker, being
careful that the threadlocker does not block the
holes. Then tighten them all the way.
Make sure that the oil passage
A
is cleaned
well. Make sure that the countershaft bearing
retaining plate
3
is not deformed. If it is, re-
place it.
The table below carries the indications for ap-
plication of the screw for the plate
3
.
The crankcase half will definitely have to be
replaced if the oil pump crankcase
B
has deep
scratches or signs of meshing
Screw number
Screw dimensions
Threadlocker
application
Tightening torque
[Nm]
Threading
diameter
Threading length
4
M5
10
Loctite 243/
Sichel 100M
6
2
4
1
A
B
3
2
.1
.3
6Nm