1991 Johnson/Evinrude EI Outboards 2.3 thru 8 Service Manual, Page 123Get 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 systematically 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 cover
clip to clean engine ground