1998 Johnson Evinrude "EC" 90, 115 SPL Service Manual, P/N 520209, Page 109Get this manual
Power Pack Removal
1Separate the power pack connector(s)Twist and remove the primary lead covers from the ignition coils
2Notice the fastener, washer, wire, and clamp locations before removing any screws3Remove the power pack mounting screws and remove the power pack and washersPower Pack Installation
1Clean the power pack mounting bosses to provide clean engine ground
2Assemble the correct sequence of washers and locate the power pack on the powerhead or ignition bracket3Carefully install the power pack ground lead where indicated and install the retaining screwsTighten the screws to torque of 60-84 inIbs(7-9 Nm)4Apply isopropyl alcohol to the Amphenol connectorsAlign flat areas and carefully plug togetherSecure with wire retainer where used5Lightly coat the openings of the primary lead covers and install them on ignition coil terminalsObserve proper wire routing and ignition timingrefer to Ignition Coil Installation