Specifications
2
13
DISASSEMBLING THE ENGINE
CYLINDER
Remove  the  rubber  tube  that  connects  the 
cylinder to the water pump after having loo-
sened the clamp; turn the motor shaft until 
the  piston  lies  in  the  top  dead  centre  and 
loosen the four bolts A that fasten the cylin-
der to the base unit. Then gently remove the 
cylinder by pulling it upwards.
Note: Should the  cylinder be stuck to the 
base  unit,  gently  strike  the  cylinder  in  va-
rious points with a rubber mallet.
PISTON
Place  a  clean  cloth  in  the  area  below  the 
piston, between the two casings, in order to 
prevent any foreign objects or solid residues 
from  falling  into  the  base  unit.  Then  use  a 
suitable  tool  to  remove the  piston pin lock 
ring  A.  Working  from  the  other  side,  unth-
read  piston  pin  B as much  as is needed  to 
release  the  piston  assembly  from  the  con-
necting rod. Remove the bearings assembly 
C from the connecting rod.
2.1.2
2.1.3
Disassembling the cylinder.
Disassembling snap ring A.
Complete  piston:  A)  piston  pin  lock  ring;  B)  piston 
pin; C) bearings assembly; D) piston.
C
B
A
A
A
D










