Cylinder/Piston
Cylinder
Removal
● Remove the cylinder head. (⇨ 9-5)
● Remove the cam chain guide from the cylinder.
● Remove the cylinder.
● Remove the gasket and dowel pin. Remove the
gasket residues attached to the cylinder.
NOTE
Inspection
● Measure, and record, the cylinder inner diameter
from the 6 top, middle and bottom places in the
piston direction and the perpendicular axial
(X and Y direction) direction.
● The maximum value shall be the cylinder inner
diameter.
Service limit: 56.100mm(2.2087in)
● Measure the piston outer diameter.
● Subtract the piston outer diameter value from the
cylinder inner diameter value, and measure the
clearance between the cylinder and piston.
Service limit: 0.340mm(0.0134in)
● Based on each measured value, calculate the out
of roundness (difference between X direction and
Y direction) and cylindericality (Difference of top,
middle and bottem inner diameter in the
direction of X or Y).
Service limit: Out of roundness 0.005mm(0.0002in)
Cylindricality 0.05mm(0.002in)
10-2
Take precautions not to damage the gasket.
Cam chain guide
Gasket
Cylinder gauge
Top
Middle
Bottom
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