like 50 2T 1 Werkstatthandbuch : Seite 107

          10. CRANKCASE/CRANKSHAFT                                                      LIKE 50 2T


 SERVICE INFORMATION

 GENERAL INSTRUCTIONS
 · This section covers crankcase separation to service the crankshaft.
 · The following parts must be removed before separating the crankcase.
   Engine ( Section 5)                  Driven pulley ( Section 9)
   Carburetor ( Section 11)             A.C. generator ( Section 7)
   Oil pump ( Section 4)                Cylinder head/cylinder ( Section 6)
   Reed valve ( Section 11)
 · When the left crankcase must be replaced, remove the following part in addition to the above.
   Final reduction removal
 · Special tools must be used for crankshaft and crankcase assembly. When separating the
   crankcase, the bearing will remain in the crankcase and it should be removed. When, assembling,
   drive a new bearing into the crankcase and install a new oil seal.


 SPECIFICATIONS
                                                          LIKE 50 2T

             Item                         Standard (mm)                  Service Limit (mm)
 Connecting rod big end side
 clearance                                                                     0.60
 Connecting rod big end radial
 clearance                                                                     0.04

 Crankshaft runout A/B                                                       0.15/0.10


 SPECIAL TOOLS
 Crankcase puller                                Bearing outer driver handle A
 Universal bearing puller                        Bearing outer driver, 42x47mm
 Crankcase assembly collar                       Bearing driver pilot, 20mm
 Crankcase assembly tool                         Bearing outer driver, 37x40mm
                                                 Bearing driver pilot, 17mm


 TROUBLESHOOTING
 Abnormal engine noise
 · Excessive crank journal bearing play
 · Excessive crankpin bearing play
 · Excessive transmission bearing play




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