Sym Joyride 125 Service Manual page 146

Place piston rings respective into cylinder below
20 mm of cylinder top. In order to keep the piston
rings in horizontal level in cylinder, push the rings
with piston.
Service Limit: Top ring: 0.50 mm
nd
2
Measure the outer diameter of piston pin.
Service Limit: 14.93 mm
Measure the inner diameter of connecting rod
small end.
Service Limit: 15.06 mm
Measure the inner diameter of piston pin hole.
Service Limit: 15.04 mm
Calculate clearance between piston pin and its
hole.
Service Limit: 0.02 mm
To this chapter contents
ring: 0.65 mm
8. Cylinder / Piston
8-5