2003 ST 4 Stroke 9.9/15HP Johnson outboards Service Repair Manual P/N 5005714, Page 67Get this manual
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IGNITION AND ELECTRICAL TESTING IGNITION SYSTEM I UNI IIGNIION
REMOVAL Oisconnect:
2 connecto (Condenser charge coil wires (RW and BR)
Pulser coil wire (WG) Oil pressure switc