zing 125 qe Workshop-manual : Page 56

          6. CYLINDER HEAD/VALVES                                                    ZING II 125


 CAMSHAFT HOLDER INSPECTION
 Inspect the camshaft holder, valve rocker
 arms and rocker arm shafts for wear or
 damage.
 If the valve rocker arm contact surface is
    worn, check each cam lobe for wear or
    damage.



                                                       Rocker Arm Shafts
 Measure the I.D. of each valve rocker arm.
 Service Limits:
 IN   12.10mm replace if over
 EX 12.10mm replace if over

 Measure each rocker arm shaft O.D.
 Service Limits:
 IN   11.90mm replace if below
 EX 11.90mm replace if below



                                                    Cam Chain Tensioner Slipper



 CYLINDER HEAD REMOVAL
 Remove the camshaft. ( 6-4)
 Remove the carburetor and intake manifold.
 Remove two bolts on the cylinder head.
 Remove the cylinder head.




                                                  Bolts               Cam Chain
                                                      Cylinder Head Gasket


 Remove the dowel pins and cylinder head
 gasket.
 Remove the cam chain guide.
 Remove all gasket material from the cylinder
 head mating surface.
 Be     careful not to drop any gasket
    material into the engine.

                                                Cylinder      Cam Chain Guide

                                                                                  6-6