2
23
ENGI
N
E DIS
A
S
SEM
BL
Y
1
3
4
5
B
A
2
2.1.5 DISASSEMBLING CYLIN-
DER AND PISTON
Lift up the cylinder
1
a few centimetres, remo-
ve the two centring bushes
2
(both located on
the chain side) to prevent them from falling
inside the crankcases and continue on remo-
ving the cylinder. Remove the cylinder gasket
3
.
Place a clean cloth between the piston and
the crankcase to keep foreign objects or sim-
ple residue from falling inside the base. Using
a suitable tool to insert the specific seat
A
,
remove the elastic ring
4
on the right hand
side* of the piston
5
.
ATTENTION:
be careful not to drop the elastic
ring inside the engine.
From the left hand side of the piston, push the
pin bolt with an aluminium cylinder
B
(or the
likes), until the pin bolt is freed from the foot
of the connecting rod.
Remove the piston.
ATTENTION:
Try pulling out the pin bolt by
hand first of all. If it is too tight, hit the pin
lightly with a rubber hammer, at the same
time holding the piston with your hand in or-
der not to stress the connecting rod.
Cylinder removal.
Removal of elastic ring 4 from right hand side of pi-
ston.
Pin bolt removal.
