CYLINDER AND PISTON
Piston and piston ring
Piston pin clip 1
Piston pin 2
Put identification marks on each piston head
for reference during reinstallation.
Before removing each piston pin, deburr the
clip groove and pin hole area. If the piston
pin groove is deburred and the piston pin is
still difficult to remove, use the piston pin
puller set 4.
Piston pin puller set:
Do not use a hammer to drive the piston
Piston ring 1
Spread the end gaps apart while at the same
time lifting the piston ring over the top of the
piston crown, as shown in the illustration.
Cylinder and piston
Cylinder and piston walls
Vertical scratches → Replace cylinder
Measure the cylinder bore "C" with a cylin-
der bore gauge.
Measure the cylinder bore "C" in parallel to
and at right angles to the crankshaft. Then,
find the average of the measurements.
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