KYMCO DINK 125 Service Manual page 159

7
. CYLINDER/PISTON
Remove the piston rings and insert each
piston ring into the cylinder bottom.
＊
Use the piston head to push each piston
ring into the cylinder.
Measure the piston ring end gap.
Service Limit: Top: 0.5mm replace if over
2nd: 0.65mm replace if over
Oil ring: 0.9mm replace if over
Measure the piston pin hole I.D.
Service Limit: 13.04mm replace if over
Measure the piston pin O.D.
Service Limit: 12.96mm replace if below
20mm
DINK50/ 125
7-14