mxer mxu 150 Workshop-manual : Page 121

          8. CYLINDER/PISTON                                                                   ATV 150/125

 SPECIFICATIONS                                                                         mm (in)
                   ATV 125                                Standard              Service Limit
 Cylinder       I.D.                            56.5356.545                   56.6 (2.264)
                                                (2.26122.2618)
                Warpage                                                       0.05 (0.002)
                Cylindricity                                                  0.05 (0.002)
                True roundness                                                0.05 (0.002)
                Ring-to-groove Top              0.0150.055                    0.09 (0.0036)
                                                (0.0060.0022)
                clearance         Second        0.0150.055                    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.                     56.4656.5                     56.4 (2.256)
                                                (2.25842.26)
                Piston O.D. measuring position 5 (0.2) from bottom of skirt           
 .              Piston-to-cylinder clearance    0.010.04 (0.0004              0.1 (0.004)
                                                0.0016)
                Piston pin hole I.D.            15.00215.008                  15.04 (0.6016)
                                                (0.600080.30016)
  Piston pin O.D                                14.99415 (0.599760.6)         14.96 (0.5984)
  Piston-to-piston pin clearance                0.0020.014                    0.02 (0.008)
                                                (0.000080.00056)
  Connecting rod small end I.D. bore            15.01615.034                  15.06 (0.6024)
                                                (0.600640.60136)




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