people 125 Werkstatthandbuch : Seite 87

          8. CYLINDER/PISTON                                                             PEOPLE 125/150


 SERVICE INFORMATION

 GENERAL INSTRUCTIONS

 · The cylinder and piston can be serviced with the engine installed in the frame.

 · After disassembly, clean the removed parts and dry them with compressed air before inspection.




 TROUBLESHOOTING

 · When hard starting or poor performance at low speed occurs, check the crankcase breather for

  white smoke.     If white smoke is found, it means that the piston rings are worn, stuck or broken.

 Compression too low                                  White smoke from exhaust muffler

 · Worn, stuck or broken piston rings                 · Worn or damaged piston rings

 · Worn or damaged cylinder and piston                · Worn or damaged cylinder and piston



 Compression too high                                 Abnormal noisy piston

 · Excessive carbon build-up in combustion            · Worn cylinder, piston and piston rings

  chamber or on piston head                           · Worn piston pin hole and piston pin




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