Honda MBX50 Workshop Manual page 62

CYLINDER HEAD/CYLINDER/PISTON
Inspect the cylinder bores for wear at three levels
in X and Y directions. Take the minimum figure
measured to determine the cylinder wear. Avoid the
port area.
SERVICE LIMIT:
MBX50
39.062 mm (1.5379 in)
MBX80 49.572 mm (1.9516 in)
Measure the 0.D. of the piston at a point 10 mm
in) from the end of the skirt.
(3/8
LIMIT:
SERVICE
MBX50 38.920 mm (1.5323 in)
MBX80 · 49.420 mm (1.9457 in)
Calculated the piston-to-cylinder clearance.
SERVICE LIMIT: 0.090 mm (0.0035 in)
Measure the 1.0. of the piston pin bore.
LIMIT:
SERVICE 12.030
Measure the 0.0. of the piston pin.
LIMIT:
SERVICE 11.980 mm (0.4717
Calculate the piston pin-to-piston clearance.
UMIT:
SERVICE 0.040 mm (0.0016 in)
6-7
mm
(0.4736 in)
in)
(1) PISTON PIN BORE 1.D.
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� MBX50· MBXSO
y
(2) PISTON PIN 0.0.