kpw 125 Manuale-dofficina : Pagina 70

          7. CYLINDER/PISTON                                                                    K-PIPE 125

CYLINDER REMOVAL                                                                       Guide Roller
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.




Remove the gasket and dowel pins.                                                      Guide Roller Bolt

                                                                         Dowel Pins       Gasket




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

Measure the cylinder-to-piston clearance.
Service Limit: 0.35mm repair or replace if over

The true roundness is the difference between 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.
                                                                Top
Service Limits:
True Roundness: 0.05mm repair or replace if over

Cylindricity: 0.05mm repair or replace if over                  Middle



                                                                Bottom




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