1995 Johnson/Evinrude Outboards 9.9, 15 four-stroke Service Manual, Page 214Get 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 ave shock hazard) not torn or cracke Wire ClampsTie Straps position as shown in me 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