agility 50 3 Workshop-manual : Page 82

          7. CYLINDER HEAD/VALVES                                           FILLY LX 50
                                                            Valve Spring Compressor
 CYLINDER HEAD DISASSEMBLY
 Remove the valve spring cotters, retainers,
 springs, spring seats and valve stem seals
 using a valve spring compressor.
 · Be sure to compress the valve springs
      with a valve spring compressor.
    · Mark all disassembled parts to ensure
      correct reassembly.

  Special
 Valve Spring Compressor
                                                  Valve Spring Compressor Attachment
 Valve Spring Compressor Attachment


 Remove carbon deposits from the combustion
 chamber.
 Clean off any gasket material from the
 cylinder head mating surface.
 Be careful not to damage the cylinder
    head mating surface.




 INSPECTION
 CYLINDER HEAD
 Check the spark plug hole and valve areas for
 cracks.
 Check the cylinder head for warpage with a
 straight edge and feeler gauge.
 Service Limit: 0.05mm repair or replace if
                 over




 VALVE SPRING FREE LENGTH
 Measure the free length of the inner and outer
 valve springs.
 Service Limits:
     Inner : 30.1mm replace if below
     Outer : 33.3mm replace if below




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