Honda BF8, BF9.9 and BF10 Outboard Motors Shop Manual., Page 172Get this manual
6CYLINDER HEAD ASSEMBLY 1) Clean the cylinder head with solvent and blow through
I1 IOIL SEAL
all oil passages with compressed air2) Install new O-ring onto the thermo sensor
3) Apply liquid sealant (Three bond #1201, #I215 or equivalent) to the thread of the thermo sensorThen install the thermo sensor and tighten it to the specified torqueTORQUE: 18 N-m(1.8 kerf-in, 13 lbf-ft
4) Install new oil seal, then apply grease to the lip of the oil seat
5) Install the valve spring seats and new stem seals-
131 PAINT MARK
VALVE SPRING