7. CYLINDER/PISTON                                                                       K-XCT 125i



 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 or uneven
 compression                                         Excessive smoke from exhaust muffler
  Worn or damaged cylinder and piston rings           Worn or damaged piston rings
  Worn, stuck or broken piston rings                  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
                                                      Incorrectly installed piston




7-3