ENGINE/ TOP END
80
X
6. Measure the clearance (X) between piston ring (1) and
piston ring groove (2) with an spacer gauge.
Allowable limit: Top ring: 0.09 mm
Second ring: 0.09 mm
7. Measure the bore diameter (X) of the connecting rod small
end inner diameter with an subito.
Allowable limit: 15.06 mm
PISTON INSTALLATION
1. Put some oil on each piston ring and the piston.
2. Install the piston ring by aligning it with the guide pin (1) on
the piston.
(2): Top ring
(3): Second ring
NOTE
The piston should not be scratched and the piston ring should not
be broken.
The piston ring should be assembled with its marked side up-
ward.
3. Install according to the arrow mark (4) on the piston top.
!
WARNING
The retaining ring should not fall into the crankcase.
X
2
1
1
3
2
4
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