1998 Johnson Evinrude "EC" 90, 115 SPL Service Manual, P/N 520209, Page 99Get this manual
Installation
1Install the flywheel key centerline of crankshaft
its outer edge parallel to
2Clean the crankshaft and flywheel tapers with ONIC Cleaning Solvent and let dryThese surfaces must be clean and dry to allow proper locking of the tapers[] 3Align the flywheel keyway and install flywheelCoat the threads of the flywheel nut with ONIC Gasket Sealing CompoundInstall the nut and torque to the correct valueSee chart belowFlywheel Nut Torque Chart Model