Zontes ZT310M 2022, Maintenance Manual

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Five, The piston
Disassemble
1. After the cylinder is removed, use needle-nose pliers to remove the piston pin retaining ring, push the piston pin out
of the piston and connecting rod, and then remove the piston.
Remarks:
①
Do not scratch the piston and piston ring when removing the piston pin retaining ring.
②
Block the opening of the crankshaft case with cloth or other objects to prevent the piston pin retaining ring from
falling into the case during disassembly
2. Remove the piston rings by pulling them apart and lifting them up against the gap and use a used piston ring or
other suitable object to remove the carbon build-up from the piston ring grooves.
Piston
Needle
nose pliers
Piston pin
retaining ring
Connecting rod
small head
Piston pin
Piston ring
Piston ring recesses