1998 Johnson Evinrude "EC" 125C, 130, 200, 225, 250 90 deg LV Service Manual, P/N 520212, Page 174Get this manual
Output Tests -
cranking output tests must be performed with spark 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 holes
STEPTOTAL OUTPUT TEST
rn 1Twist and remove all spark plug leadsrn 2Adjust leadsgapthe sparkspark leadsSecure tester clip to the on the tester to in(11 mm)Connect tester to plug
clean engine ground
INote To
prevent possible arcing of high voltage, route tester leads at least in(51 mm) from any metal surface
11 To avoid possible shock hazard, do not handle ignition coils
or spark tester during cranking tests