1989 Honda FL400R Pilot Service Manual, Page 71Get this manual
CYLINDER HEADCYLINDERPISTON CYLINDERPISTON INSPECTION Check the cylinder suriace for warpage with straight edge and feeler gauge as shownSERVICE LIMIT: 0.05 mm (0.002 in)
Inspect the cylinder walls for scratches and wearMeasure and record the cylinder IDat three levels in both an and axisTake the maximum reading to determine the cylinder wearSERVICE LIMIT:A: 80.016 mm (3.1502 in) B: 80.022 mm (3.1505 in) C: 80.028 mm (3.1507 in) Calculate the piston-to-cylinder clearanceTake the maximum
reading to determine the clearanceSERVICE LIMIT: 0.150 mm (0.0059 in) Calculate the cylinder for taper at three levels in and axisTake the maximum reading to determine the taperSERVICE LIMIT: 0.010 mm (0.0004 in)
Calculate the cylinder for out-af-round at three levels in and YaxisTake the maximum reading to determine the outof-roundSERVICE LIMIT: 0.010 mm (0.0004 in) The cylinder must be rebored and oversize piston fitted if