42 / 71
Fig. 94
19
Remove the following parts: Retainer (2 pcs) [1],
Compression spring 12 (2 pcs) [2], Exhaust valve
[3], Intake valve [4].
Tips
If Valve is contaminated, clean it up with a
carbon remover.
Rocker arm cannot be removed from Cylinder
block because Rocker shaft is press-fitted into
Cylinder block [5]. If it is broken, replace
Cylinder block [5] with a new one.
Fig. 95
20
From Piston, remove Top ring [1], Second ring [2],
Oil ring [3].
21
From Crankshaft, remove the following parts:
Oil seal 15 [4]: Two different ones are used and the
one on Key installation side has a larger outer
diameter.
Flat washer 35 [5].
Fig. 96
22
Piston [3] can be separated from Crankshaft [2]
first by removing one of the two Ring springs 11
from Piston, then by pushing out Piston pin 11 [1]
from the other side.
Fig. 97
Tips
Remove Ring spring 11 [4] by inserting a small
slotted screwdriver or the like into the notch of
Piston.
[4]
[1]
[2]
[3]
[1]
[2]
[4]
[5]
[3]
[4]
[1]
[2]
[3]
[4]
[5]
