1993 Johnson Evinrude "ET" 2 thru 8 Service Manual, P/N 508281, Page 132Get this manual
IGNITION OUTPUT TESTS3, 4
ill plugs installed and torqued in the cylinder headIf neces-
All cranking output tests must be performed with spark
sary to remove the spark plugs, be sure to keep the spark tester away from spark plug holesThe following series of steps will systematical!y isolate problem area in the ignition systemTo reduce your troubleshooting time and to avoid incomplete results, perform these steps in the order written
STEPTOTAL OUTPUT TEST
1Remove the spark plug leads from both spark plugsTo prevent damage to the spring terminal on the spark plug lead, twist and pull the coverf112Adjust the spark gap on the spark tester to 38 in(0,9 mm)L!J Connect the tester leads to the spark plug leadsSecure tester clip to clean engine groundTo prevent possible arcing of high voltage, position the tester leads at least in(51 mm) from any metal surface