Suzuki 2002-2005 DF4/DF5/DF6 4-Stroke Outboards Service Manual, Page 89Get this manual
6-22 POWER UNIT Cylinder bore wear (difference) Using the cylinder bore gauge, measure the cylinder bore in the thrust and axial directions at the two positions and B09900-20530Cylinder gauge set Check for the followings Difference between the measurements at the two positions (taper) Difference between the thrust and axial measurements (outof-round)Cylinder bore wear (difference)Service limit0.100 mm (0.0039 in) If the wear (difference) exceeds the service limit, rebore or replace the cylinder
A 35 mm (1.4 in) 60 mm (2.4 in)