DAELIM S2 125 Service Manual page 106

FEELER GAUGE
STRAIGHT
EDGE
PISTON
PISTON RING
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
·Any clearance between the cylinder and head due to
damage or warpage will result in compression leaks
and reduced performance.
PISTON / PISTON RING
REMOVAL
·Place a clean shop towel over the crankcase to
prevent the possibility of the clip falling into the
crankcase.
● Remove the piston pin clip using a pair of pliers.
● Press the piston pin out of the piston.
·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.
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.
·Do not damage the piston ring by spreading the ends
too far.
● 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.
CYLINDER/PISTON
10-3