1993 Johnson Evinrude "ET" 9.9 thru 30 Service Manual, P/N 508282, Page 127Get this manual
IGNITION OUTPUT TESTSCD II i 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 open 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
[!] 1Twist and remove the leads from both spark plugst3.J 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 surfacer:;l 2Adjust the gap on the spark tester to