Honda BF75, BF100, BF8A Outboard Motors Shop Manual, Page 73Get this manual
DISASSEMBLY AND SERVICE INSPECTION VALVE STEM O.DSTANDARD IN 5.4685.480 mm (0.2150.216 in) EX 5.4355.450 mm (0.2140.2145 in) SERVICE LIMIT 5.08 mm (0.2 in) min4.75 mm (0.187 in) min
VALVE GUIDE I.DSTANDARD 5.5005.512 mm (0.21650.2170 in) SERVICE LIMIT 5.54 mm (0.218 in) max