mxu 50 Manuel atelier : Page 177

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          12. CRANKCASE/CRANKSHAFT                                            ATV 50


 Measure the crankshaft runout.

               Service Limit
          A                       B
  0.15 mm (0.006 in)      0.1 mm (0.004 in)
    replace if over         replace if over




 Check the crankshaft bearings for excessive
 play. The bearings must be replaced if they
 are noisy or have excessive play.             Play              Play




                                                Axial   Radial




 CRANKSHAFT INSTALLATION
 Wash the crankshaft in cleaning solvent and
 then check for cracks or other faults.
 · After check, apply clean engine oil to
     all moving and sliding parts.
   · Remove all gasket material from the
     crankcase mating surfaces. Dress any
     roughness or irregularities with an oil
     stone.




12-5