1998 Johnson Evinrude "EC" 90, 115 SPL Service Manual, P/N 520209, Page 171Get this manual
7Remove the screws, stern bracket to trim manifold, and remove the trim and tilt unitAssembly
Before proceeding, be sure all components have been thoroughly cleanedReplace any seals that have been removedInspect all thrust washers and bushings for evidence of deterioration
[] 1Install an upper steering shaft bushing, lower seal, and upper seal in the swivel bracketBoth seal lips face out Coat seals' outside diameter with OMC Gasket Sealing Compound Coat the bushing and seal lips with OMC Triple-Guard grease2Install the trim and tilt unitApply OMC Locquic Primer and OMC Nut Lock to the threads of screws, stern bracket to trim manifoldInstall them loosely[] 3Coat two tilt tube bushings grease and install in swivel bracket