1979 V6 150-235 HP Johnson Outboards Service Repair Manual P/N JM-7910, Page 157Get this manual

1979 V6 150-235 HP Johnson Outboards Service Repair Manual P/N JM-7910, Page 157

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ELECTRICAL CHECKS Before disconnecting battery, test electrical accessory plug controlWith key switch in position, insert red voltmeter lead into "" terminal and insert black lead into "" terminal See