quannon 125 Workshop-manual : Page 64

          6. CYLINDER HEAD/VALVES                                                  QUANNON 125


 CYLINDER HEAD ASSEMBLY
 Install the valve spring seats and valve stem
 seals.
 Be sure to install new valve stem seals.
 Apply engine oil to the inside of the valve
 stem seals and insert the valves into the
 valve guides.


 Install the valve springs and retainers.
 Compress the valve springs using the valve
 spring compressor, then install the valve
 cotters.
 · When assembling, a valve spring
     compressor must be used.
   · Install the cotters with the pointed ends
     facing down from the upper side of the
     cylinder head.

  Special Tool
 Valve Spring Compressor      E040
                                                         Valve Spring Compressor
                                                 Plastic Hammer
 Tap the valve stems gently with a plastic
 hammer to firmly seat the cotters.

 Be careful not to damage the valves.




                                                                Cylinder Head
                                                   Dowel Pins
 CYLINDER HEAD INSTALLATION
 Install the cam chain guide.
 Install the dowel pins and a new cylinder
 head gasket.




                                                 Cam Chain Guide            Gasket

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