Honda GP160H Manual page 104

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PISTON SKIRT O.D.
Measure and record the piston skirt O.D. at a point 10
mm (0.4 in) from the bottom of the skirt and 90° to the
piston pin bore.
STANDARD:
GP160: 67.965 – 67.985 mm (2.6758 – 2.6766 in)
GP200: 67.965 – 67.982 mm (2.6758 – 2.6765 in)
SERVICE LIMIT: 67.845 mm (2.6711 in)
If the measurement is less than the service limit,
replace the piston.
Inspect the cylinder sleeve I.D. (page 13-6).
PISTON-TO-CYLINDER CLEARANCE
Subtract the piston skirt O.D. from the cylinder sleeve
I.D. to obtain the piston-to-cylinder clearance.
STANDARD:
GP160: 0.015 – 0.055 mm (0.0006 – 0.0022 in)
GP200: 0.018 – 0.055 mm (0.0007 – 0.0022 in)
SERVICE LIMIT: 0.12 mm (0.005 in)
If the calculated clearance is more than the service
limit, replace the piston and recheck the clearance.
If the clearance is still more than the service limit with a
new piston, replace the cylinder barrel.
PISTON PIN BORE I.D.
Measure and record the piston pin bore I.D. of the
piston.
STANDARD: 18.002 – 18.008 mm (0.7087 – 0.7090 in)
SERVICE LIMIT: 18.048 mm (0.7105 in)
If the measurement is more than the service limit,
replace the piston.
Inspect the piston pin O.D. (page 13-8).
CRANKCASE
90°
10 mm
(0.4 in)
13-7