1998 Johnson Evinrude "EC" 90, 100C, 105C, 115, 150, 150C, 175 60 deg. LV Service Manual, P/N 520210, Page 117Get this manual
[] 8Lift the flywheel cover and tap the throttle shaft out of the throttle arm 9Remove the roller arm shaft and throttle shaft retainersLift the flywheel cover from the powerhead
[] 10Remove the flywheel cover(]] 11Using OMC Flywheel Holder, PIN 771311, or equivalent, remove the five flywheel retaining screwsDiscard the five screws
12Using the two 3a-24x1 inscrews from OMC Flywheel Service Kit, PIN 434649, secure the tool to the flywheelTwo ofthe five holes in the flywheel are tapped for the toolTurn the center screw and draw the flywheel off the crankshaftTo avoid damaging the flywheel magnets, OMC Flywheel Service Kit, PI 434649, should be your only method of removing and installing the flywheel