10-3
CYLINDER/PISTON
·Any clearance between the cylinder and head due to
damage or warpage will result in compression leaks
and reduced performance.
·Place a clean shop towel over the crankcase to
prevent the possibility of the clip falling into the
crankcase.
WARPAGE INSPECTION
● Check the cylinder for warpage by placing a straight
edge and feeler gauge across the stud holes. Replace
the cylinder if the service limit is exceeded.
SERVICE LIMIT : 0.02 mm
·Do not damage or scratch the piston.
·Do not apply side force to the connecting rod.
·Do not let the clip fall into the crankcase.
● Remove the piston pin clip using a pair of pliers.
● Press the piston pin out of the piston.
INSPECTION
● Clean carbon deposits from the piston.
● Inspect the piston rings for movement by pressing the
rings. The rings should be able to move in its groove
without catching.
● Spread each piston ring and remove it by lifting it up at
a point just opposite the gap.
● Measure the clearance between the piston ring and
piston grooves.
SERVICE LIMIT : TOP : 0.110 mm
SECOND : 0.080 mm
OIL RING : 0.280 mm
● Inspect the piston for wear or damage.
PISTON / PISTON RING
REMOVAL
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