UXPW 125 ENGINE SERVICE MANUAL AND EFI DIAGNOSTIC
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5.4.4.8. Check gap of piston ring.
Install piston ring into cylinder block, and press
them down with piston. Check gap of each piston
ring with feeler gauge.
5.4.4.9. Check for clearance between piston ring and ring
groove
5.4.4.10. Assembly schematic diagram of piston rings