2003 Johnson ST 6/8 HP 4 Stroke Outboards Service Manual, PN 5005471, Page 81Get this manual
IGNITION FLYWHEEL Apply Moly Lube to threads of pressing screw and center hole of crankshaft
Installation
Clean the crankshaft and flywheel tapers with Cleaning Solvent and let dryThese surfaces must be clean and dry to allow proper locking of the tapersInstall the flywheel key with its outer edge parallel to centerline of crankshaft and single upset mark facing downI
Assemble parts from PIN 378103 as follows:
Universal