1993 Johnson Evinrude "ET" 60 thru 70 Service Manual, P/N 508284, Page 121Get this manual
IGNITION OUTPl)T TESTS
ill plugs installed and torqued in the cylinder headIf necessary to remove the spark plugs, be sure to keep the spark tester away from open spark plug holesThe following series of steps will systematically isolate problem area in the ignition systemTo reduce your trou bleshooting time and to avoid incomplete results, perform these steps in the order written
All cranking output tests must be performed with spark
STEPTOTAL OUTPUT TEST
I] 1Twist and remove the spark plug leads from all spark plugsf21 2Adjust the gap on the spark tester to 12 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
i or spark tester during cranking tests