Removing The Cylinder And Piston - Yamaha YW125Y 2009 Service Manual

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CYLINDER AND PISTON
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EAS00253

REMOVING THE CYLINDER AND PISTON

1. Remove:
8 piston pin clip 1
8 piston pin 2
8 piston 3
NOTICE
Do not use a hammer to drive the piston pin
out.
TIP
8 Before removing the piston pin clip, cover
the crankcase opening with a clean rag to
prevent the piston pin clip from falling into
the crankcase.
8 Before removing the piston pin, deburr the
piston pin clip's groove and the piston's pin
bore area.
8 If both areas are deburred and the piston
pin is still difficult to remove, remove it with
the piston pin puller set 4.
Piston pin puller set
90890-01304 (YU-01304)
2. Remove:
8 top ring
8 2nd ring
8 oil ring
TIP
When removing a piston ring, open the end gap
with your fingers and lift the other side of the
ring over the piston crown.
ENG