1998 Johnson Evinrude EC 5 thru 15 HP Four Stroke Service Manual, Page 344Get this manual
If electrical parts are replaced or even removed from the motor, check the following: Wire and High Voltage Lead Routing as shown in service manual away from moving parts which could cut wires or wire insulation away from motor cover latches which can catch and cut insulation from High Voltage spark plug leads
Sleeves, Boots, Shields in position (to avoid shock hazard) not torn or cracked Wire ClampsTie Straps position as shown in manuals use only coated clamps
Spark Plug Boots not torn or cracked fully pushed onto spark plug Spark Plugs avoid rough handling that could crack Ceramic part of plug(Sparks may jump across outside of plug