vitality 50 2t 4t Workshop-manual : Page 132

          9. KICK STARTER/DRIVE PULLEY/
  CLUTCH/DRIVEN PULLEY                                                          VITALITY 50


 SERVICE INFORMATION
 GENERAL INSTRUCTIONS
 · Avoid getting grease and oil on the drive belt and pulley faces.


 SPECIFICATIONS                                                VITALITY 50
                Item                           Standard (mm)                 Service Limit (mm)
 Drive pulley collar O.D.                    19.9619.974                          19.94
 Movable drive face I.D.                    20.01120.052                           20.6
 Weight roller O.D.                          15.9216.08                            15.4
 Clutch outer I.D.                            107107.2                            107.5
 Driven face spring free length              87.9 (2-stroke)                  82.6 (2-stroke)
 Driven face spring free length               95 (4-stroke)                    90 (4-stroke)
 Driven face O.D.                            33.96533.985                         33.94
 Movable driven face I.D.                     34.034.25                           34.06
 Drive belt width                                  18                               17


 TORQUE VALUES
 Drive face nut             3.54.0kg-m
 Clutch outer nut           3.54.5kg-m
 Clutch drive plate nut     5.06.0kg-m


 SPECIAL TOOLS
 Universal holder                 E017
 Clutch spring compressor         E034




 TROUBLESHOOTING
                                                        Poor performance at high speed or
 Engine starts but motorcycle won`t move                lack of power
 · Worn drive belt                                      · Worn drive belt
 · Broken ramp plate                                    · Weak driven face spring
 · Worn or damaged clutch lining                        · Worn weight roller
                                                        · Faulty driven face

 Engine stalls or motorcycle creeps
 · Broken clutch weight spring




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