2003 Johnson ST 6/8 HP 4 Stroke Outboards Service Manual, PN 5005471, Page 68Get this manual
IGNITION SAFETY INFORMATION
SAFETY INFORMATION
Before working on any part of the outboard, first read the SAFETY section at the end of this manual
WARNING
Use caution when conducting tests on running enginesDo not wear jewelry or loose clothingBefore working on or removing any electrical parts, disconnect the battery cables at the battery to prevent electrical sparksTwist and remove all spark plug leads to avoid accidental startingMake sure ignition and electrical wires are routed and clamped in original position, away from rotating parts, which could cut or abrade wire insulationKeep all electrical connections clean, tight, and insulated to prevent shorting or arcing and causing an explosion