1993 Johnson Evinrude "ET" 2 thru 8 Service Manual, P/N 508281, Page 110Get this manual
ill plugs installed and torqued in the cylinder headIf necessary to remove the spark plugs, be sure to keep the spark tester away from spark plug holesproblem area in the ignition systemTo reduce your troubleshooting time and to avoid incomplete results, perform these steps in the order written I:A All cranking output tests must be performed with spark
f'N=J The following series of steps will systematically isolate a
STEPTOTAL OUTPUT TEST
'1l1Twist and remove the spark plug leads from both spark LJ plugs2Adjust the gap on the spark tester to V2 in(12 mm)Connect tester leads to the spark plug leadsSecure tester clip to clean engine groundTo prevent possible arcing of high voltage, route tester leads at least in(51 mm) from any metal surface
"" To avoid possible shock hazard, do not handle ignition coils or spark tester during cranking tests