1995 Johnson Evinrude "EO" 9.9 thru 30, 2-Cylinder Service Manual, P/N 503146, Page 123Get this manual
IGNITION OUTPUT TESTSCD II ill plugs installed and torqued in the cylinder headIf necesI.A 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 plugsrt 2t=I 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 surfaceAdjust the gap on the spark tester to
'" To avoid possible shock hazard, do not handle ignition coils or spark tester during cranking tests3If equipped, install the emergency stop switch clip and lanyard assemblyCrank the engineSpark should jump each tester gap alternately If tester shows good output on both cylinders, go to STEPRUNNING OUTPUT TEST Iftester shows good output on one cylinder, go to STEPPOWER PACK OUTPUT TEST If tester shows no output, go to STEPSTOP CIRCUIT TESTIt is possible for the ignition system to have problem but still produce good outputIf the engine "pops" or "backfires" during starting, the ignition may be out of timeCheck the following: Coil primary wire routing Spark plug lead routing Flywheel condition and location Synchronization and linkage adjustments