Honda BF8, BF9.9 and BF10 Outboard Motors Shop Manual., Page 187Get this manual
cINSPECTION
CYLINDER
7Check the cylinder wall for scratches and wear
2) Measure and record the cylinder I.Dat three levels in both the and axisTake the maximum reading to determine the cylinder 1.0,
Standard 58.00058.015 mm G!.28352.284, in)
Service limit
58.055 mrn (2.2856 in)
PISTONS
11 Inspect the piston for cracks or other damageInspect the ring grooves for excessive wear and carbon buildup2) Measure and record the piston O.D Take measurements I0 mm (0.4 in) from the bottom, and 90' to the piston pin hole