1995 Johnson/Evinrude Outboards 50 thru 70 3-cylinder Service Manual, Page 132Get this manual
STEPSENSOR COIL TESTQUIKSTART MODELS Ground Test
1Disconnect the 5-pin Amphenol connector between the timer base and power pack
2Set peak-reading voltmeter to "POS" and "5", "SEN" and "5" on Stevens CO-77 meter
3Alternately, connect voltmeter between each timer base terminal and clean engine groundCrank engine and observe meter at each connection Any reading indicates sensor coils or leads are grounded Locate and repair ground, or replace timer base
4If no reading is indicated in Step 3, go to Output TestOutput Test 1Set peak-reading voltmeter to "POS" and "5", "SEN" and "5" on Stevens CO-77 meter2Attach voltmeter black lead to terminal "E"Alternately attach meter red lead to terminals "A", "B", and "C"
3Crank engine and observe meter at each connection If meter shows 1.5 volt or higher, go to Step If meter shows less than 1.5 volt, check condition of wiring and connectors If wiring and connector condition is good, go to Ohmmeter Test