Honda Hawk GT NT650 1988 Service Manual page 127

Inspect the cylinders for transverse warpage across the top.
NOTE
Measure warpage using a straight edge and feeler gauge as
shown.
SERVICE LIMIT: 0.10 mm (0.004 in)
PISTON
REMOVAL
Place a shop towel into the crankcase and remove the piston
pin clips.
NOTE
• Do not let the clips fall into the crankcase.
Push the piston pin out and remove the piston.
INSPECTION
Clean the piston domes, ring lands and skirts.
Measure the piston ring-to-groove clearance.
SERVICE LIMITS:
Top: 0.11 mm (0.004 in)
Second: 0.10 mm (0.004 in)
If clearance is excessive, replace the piston ring.
Remove the piston rings and mark them to indicate the correct
cylinder and piston position for reassembly.
NOTE
• Do not damage the piston rings when removing them.
CYLINDER/PISTON
10-3