UXPW 125 ENGINE SERVICE MANUAL AND EFI DIAGNOSTIC
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4.4.3.3. The completed cylinder head assembly shall be
subject to air tightness test. Next operation shall not be
done unless the cylinder head assembly is confirmed
air-tight.
4.4.3.4. Assembly positioning pins and a new cylinder
head sealing gasket.
4.4.3.5 Install the completed cylinder head assembly.
4.4.3.6. Fastening two connecting bolts