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3-48 ENGINE
CYLINDER
CRANKCASE SERVICING (3-51)
CYLINDER DISTORTION
• Check the gasketed surface of the cylinder for distortion with
a straightedge and thickness gauge, taking a clearance read-
ing at several places as indicated.
• If the largest reading at any position of the straightedge
exceeds the limit, replace the crankcase set.
Cylinder distortion:
Service Limit: 0.02 mm (0.008 in)
09900-20803: Thickness gauge
CYLINDER BORE
• Inspect the cylinder wall for any scratches, nicks or other
damage.
• Measure the cylinder bore diameter at six places.
Cylinder bore:
Standard: 67.000 – 67.015 mm (2.6378 – 2.6384 in)
09900-20508: Cylinder gauge set