1979 Evinrude 4 HP Outboards Service Manual, PN 5424, Page 40Get this manual
IGNITION SYSTEM TESTS USING C.DVOLTMETER TESTER
1 1NOTE Before conducting these tests be sure to do the Spark Test, and the Ohmmeter Tests starting on page 4-
Crank engine and observe meter readingRemove lead from cavity "A" and insert into cavity "D Crank engine and observe meterAny reading on either test means charge coil is shorted to ground Locate short and repair or replace charge coilTo check charge coil output, remove black lead from armature plate and insert probe into cavity "A" of connectorSee Figure 4-24Crank engine and observe meter readingaIf meter reads 230 or higher go to Sensor Coil Output TestbIf meter reads below 230 replace charge coil