7. Cylinder / Piston
7-3
Cylinder / Piston Removal
Remove cylinder head (refer to chapter 6).
Remove coolant hose from cylinder.
Remove cylinder.
Cover the holes of crankcase and cam chain with
a piece of cloth.
Remove piston pin clip, and then remove piston
pin and piston.
Remove cylinder gasket and dowel pin.
Clean up all residues or foreign materials from the
two matching surfaces of cylinder and crankcase.
Caution
y Soap the residues into solvent so that the
residues can be removed more easily.
Inspection
Check if the inner diameter of cylinder is wear out
or damaged.
In the 3 positions, top, center and bottom, of
cylinder, measure the X and Y values respective in
the cylinder.
Service limit:
LM25W5: 71.100 mm
LM30W: 73.100 mm
Coolant hose
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