movie 125 euro 3 Workshop-manual : Page 76

          7. CYLINDER HEAD/VALVES                                                       MOVIE SYSTEM


 SERVICE INFORMATION
 GENERAL INSTRUCTIONS
 · The cylinder head can be serviced with the engine installed in the frame.
 · When assembling, apply molybdenum disulfide grease or engine oil to the valve guide movable
   parts, valve arm and camshaft sliding surfaces for initial lubrication.
 · The camshaft is lubricated by engine oil through the cylinder head engine oil passages. Clean and
   unclog the oil passages before assembling the cylinder head.
 · After disassembly, clean the removed parts and dry them with compressed air before inspection.
 · After removal, mark and arrange the removed parts in order. When assembling, install them in
   the reverse order of removal.
 SPECIFICATIONS
                 Item                        Standard (mm)           Service Limit (mm)
                             IN                   0.12                       
 Valve clearance (cold)
                             EX                   0.12                       
 Cylinder head compression pressure             13kg/cm
 Cylinder head warpage                             
                             IN                  29.803                     29.40
 Camshaft cam height
                             EX                  29.5637                    29.16
 Valve rocker arm I.D.       IN              10.00010.015                   10.10
                             EX              10.00010.015                   10.10
 Valve rocker arm shaft      IN               9.9729.987                     9.91
 O.D.                        EX               9.9729.987                     9.91
 Valve seat width            IN                    1.0                        1.8
                             EX                    1.0                        1.8
 Valve stem O.D.             IN               4.9754.990                     4.90
                             EX               4.9554.970                     4.90
 Valve guide I.D.            IN               5.0005.012                     5.03
                             EX               5.0005.012                     5.03
 Valve stem-to-guide         IN               0.0100.037                     0.08
 clearance                   EX               0.0300.057                     0.10




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