kpw 50 Workshop-manual : Page 73

          7. CYLINDER/PISTON                                                       K-PIPE 50

                                                                    Guide Roller Bolt
 CYLINDER REMOVAL
 Remove the cylinder head.
 Remove the cam chain guide roller.
 Remove the cylinder by removing the
 cylinder bolt.
 Remove all gasket material from the cylinder
 surface.



                                                   Guide Roller        Cylinder Bolt

                                                       Dowel Pins             Gasket
 Remove the gasket and dowel pins.




 CYLINDER INSPECTION
 Inspect the cylinder bore for wear or damage.
 Measure the cylinder I.D. at three levels of
 top, middle and bottom at 90 to the piston
 pin (in both X and Y directions).
 Service Limit: 52.4mm repair or replace if
                 over
 52.4mm repair or replace if below
 Measure the cylinder-to-piston clearance.
 Service Limit: 0.35mm repair or replace if
                over

 The true roundness is the difference between            Top
 the values measured in X and Y directions.
 The cylindricity (difference between the
 values measured at the three levels) is subject
 to the maximum value calculated.                      Middle
 Service Limits:
 True Roundness: 0.05mm repair or replace
   if over                                             Bottom
 Cylindricity: 0.05mm repair or replace if over



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