2006 Johnson SD 30 HP 4 Stroke Outboards Service Manual, PN 5006592, Page 92Get this manual
ELECTRICAL STARTER MOTOR Method Disconnect all cables and lead wires from the starter motor relayMeasure the continuity between the relay terminalsConnect the yellowgreen wire to the positive (+) battery terminal and the black wire to the negative (-) battery terminalConnect the test probe between the relay terminalsThen disconnect the wiring leads from the battery
STARTER MOTOR
Removal
Disconnect the battery cables at the batteryRemove three (3) bolts and the flywheel cover