Honda BF8, BF9.9 and BF10 Outboard Motors Shop Manual., Page 150Get this manual
8Clean off oil or grease from the crankshaft and flywheel mating surfaces (tapered sectionlMake sure that there are no metal objects stuck the magnets of the flywheel eF 111
FLYWHEEL NUT
91 Install the flywheel by aligning the woodruff key on the crankshaft with the key groove of the flywheel taking care not damage the pick-up point of the pulse generator10) Apply oil the thread and seating surface of the fly-
Hold the flywheel using the commercially available flywheel holder and tighten the flywheel nut
[I] FLYWHEEL NUT