2004 SR Johnson 2 Stroke 9.9, 15, 25, 30 HP Outboards Service Manual, Page 122Get this manual
IGNITION IGNITION SYSTEM TESTS Crank engine and observe results at spark tester If there is no spark at one gap, go to Power Pack Cranking Output on p124 If there is no spark at both gaps, go to Charge Coil Test on p122 If the spark jumps alternately at each gap, the problem is in the stop circuitBegin troubleshooting with Ohmmeter Test and follow all steps to locate the faultSTEP Install the emergency stop switch clip and lanyardDisconnect the 5-pin Amphenol connector between the power pack and ignition plateCalibrate ohmmeter on appropriate scaleConnect meter leads between ignition plate end of connector, terminal "E," and clean engine ground Key OFF, meter must show low reading Key ON, meter must show high readingIf key ON reading is low one, disconnect harness blackyellow lead from key switch "M" terminal If meter now shows high reading, replace key switch If meter shows low reading, go to STEP 3STEP Disconnect the key switch 6-pin connector If meter now shows high reading, repair or replace key switch harness If meter shows low reading, go to STEP 4