Mercury Mariner 8/9.9HP 4-Stroke Factory Service Manual, Page 65Get this manual

Mercury Mariner 8/9.9HP 4-Stroke Factory Service Manual, Page 65

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TEST 2 No voltage reading; proceed to TEST 3aDisconnect BLACK ground wire(s) from Test Point 2bConnect voltmeter between common engine ground and Test Point 2cTurn ignition key to "Start" position

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