1989 Johnson Evinrude "CE" 9.9 thru 30 Service Manual, P/N 507754, Page 121Get this manual
IGNITION OUTPUT TESTS i plugs installed and torqued in the cylinder headIf necesAll 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 system To reduce your troubleshooting time and to avoid incomplete results, perform these steps in the order written
DR2560 _-J
STEPTOTAL OUTPUT TEST
r:jl 1Twist and remove the spark plug leads L!J plugs
from both spark
2Adjust the gap on the spark tester to 112 in(12 mm)Connect 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