kxr 50 90 Manuel atelier : Page 134

          9. DRIVE AND DRIVEN PULLEYS                                             Mongoose/KXR 90/50


 SERVICE INFORMATION
 GENERAL INSTRUCTIONS
 · The drive pulley, clutch and driven pulley can be serviced with the engine installed in the frame.
 · Avoid getting grease and oil on the drive belt and pulley faces.   Remove any oil or grease from
   them to minimize the slipping of drive belt and drive pulley.

 SPECIFICATIONS (Mongoose/KXR 90)
                   Item                        Standard (mm)          Service Limit (mm)
 Movable drive face bushing I.D.               23.98924.052                  24.06
 Drive face collar O.D.                         23.9623.974                  23.94
 Drive belt width                                    17.5                    16.5
 Clutch lining thickness                             4.5                      2.0
 Clutch outer I.D.                              112.0112.2                   112.5
 Driven face spring free length                     145.5                    137.5
 Driven face O.D.                              33.96533.985                  33.94
 Movable driven face I.D.                      34.00034.025                  34.06
 Weight roller O.D.                             15.9216.08                    15.4



 SPECIFICATIONS (Mongoose/KXR 50)
             Item                              Standard (mm)                 Service Limit (mm)
  Movable drive face bushing                20.03620.085                            20.6
  Drive face collar O.D.                    20.0120.025                            19.98
  Drive belt width                                18                                17.5
  Clutch lining thickness                         3.5                                1.0
  Clutch outer I.D.                           107107.2                             107.5
  Driven face spring free length                 98.1                               92.8
  Driven face O.D.                          33.96533.985                           33.94
  Movable driven face I.D.                   34.034.025                            34.06
  Weight roller O.D.                         15.9216.08                             15.4




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