mxer mxu 150 Workshop-manual : Page 120

          8. CYLINDER/PISTON                                                                ATV 150/125

 SPECIFICATIONS                                                                      mm (in)
                  ATV 150                                  Standard           Service Limit
                I.D.                            62.0362.045                   62.1 (2.484)
                                                (2.48122.4818)
 Cylinder       Warpage                                                       0.05 (0.002)
                Cylindricity                                                  0.05 (0.002)
                True roundness                                                0.05 (0.002)
                                  Top           0.0150.055                    0.09 (0.0036)
                Ring-to-groove                  (0.0060.0022)
                clearance                       0.0150.055
                                  Second                                      0.09 (0.0036)
                                                (0.0060.0022)
                                  Top           0.10.25 (0.0040.01)           0.5 (0.02)
  Piston,       Ring end gap      Second        0.10.25 (0.0040.01)           0.5 (0.02)
  piston ring                     Oil side rail 0.20.7 (0.0080.028)                  
                Piston O.D.                     61.9662 (2.47842.48)          61.9 (2.476)
                Piston O.D. measuring position 5 (0.2) from bottom of skirt          
 .              Piston-to-cylinder clearance    0.010.04 (0.00040.0016)       0.1 (0.004)
                                                15.00215.008
                Piston pin hole I.D.                                          15.04 (0.6016)
                                                (0.600080.30016)
  Piston pin O.D                                14.99415 (0.599760.6)         14.96 (0.5984)
                                                0.0020.014
  Piston-to-piston pin clearance                                              0.02 (0.008)
                                                (0.000080.00056)
                                                15.01615.034
  Connecting rod small end I.D. bore                                          15.06 (0.6024)
                                                (0.600640.60136)




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