2004 SR Johnson 2 Stroke 9.9, 15, 25, 30 HP Outboards Service Manual, Page 131Get this manual
IGNITION IGNITION PLATE SERVICING ALL MODELS Clean the crankshaft and flywheel tapers with Cleaning Solvent and let dryThese surfaces must be clean and dry to allow proper locking of the tapers
IGNITION PLATE SERVICING
Removal
Align the flywheel keyway and install flywheelCoat the threads of the flywheel nut with Gasket Sealing CompoundInstall the nut and torque to the correct valueSee chart belowFlywheel Nut Torque Chart Model Ft.lbNm
WARNING
To prevent accidental starting while servicing, twist and remove all spark plug leads