kymco mo bw250 Manuale Di Servizio

Remove any gasket material from the

crankcase surface.

Install the piston, piston pin and a new

piston pin clip.

Install the dowel pins and a new cylinder

gasket on the crankcase.

Coat the cylinder bore, piston and piston

rings with clean engine oil.

Carefully lower the cylinder over the piston

by compressing the piston rings.

Gasket

Cylinder

Dowel Pin

• Be careful not to drop foreign matters

into the crankcase.

＊

•

Position the piston “IN” mark

on the intake valve side.

•

Place a clean shop towel in the

crankcase to keep the piston pin clip

from falling into the crankcase.

＊

•

Be careful not to damage or break

the piston rings.

•

The piston ring end gaps should

not be parallel with or at 90° to the

piston pin.

＊

Piston

Piston  Pin  Clip

Piston  Pin