agility city 125 Workshop-manual : Page 81

          7. CYLINDER HEAD/VALVES                               AGILITY CITY 125
                                                  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


 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 : 32.3mm replace if below
     Outer : 35.0mm replace if below




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