1998 Johnson Evinrude "EC" 90, 100C, 105C, 115, 150, 150C, 175 60 deg. LV Service Manual, P/N 520210, Page 139Get this manual
STEPPOWER COIL TEST
Ground Test
1Disconnect the starboard side Packard connector between stator and power pack2Attach test adapter to stator connector V4Use test adapter from Kit, PI 437270 V6Use test adapter from Kit, PI 434017 3Set peak-reading voltmeter to "POS" and" 500"
4Connect the meter black lead to clean engine groundAlternately connect meter red lead between orange, orangeblack stator leadsCrank engine and observe meter at each connection: Any reading indicates power coil is grounded Locate and repair ground, or replace stator assembly5If no reading is indicated in Step 4, go to Output TestOutput Test 1Set peak-reading voltmeter to "POS" and" 500"
rn 2Attach meter black lead to orange stator lead Attach meter red lead to orangeblack stator lead3Crank engine and observe meter: If meter shows 50 volts or higher, proceed to next step indicated in Troubleshooting Sequence Chart, Page 3-24 If meter shows less than 50 volts, check condition of wiring and connectors If wiring and connector condition is good, go to Ohmmeter TestOhmmeter Test