1986+ Mercury 6/8/9.9/10/15HP 2-stroke Factory Service Manual, Page 78Get this manual

1986+ Mercury 6/8/9.9/10/15HP 2-stroke Factory Service Manual, Page 78

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CHARGING AND STARTING SYSTEM
1 Set meter to 2 Connect RED (+) meter lead to RED regulator lead3 Connect BLACK () meter lead to either YELLOW regulator leadTest4 Connect BLACK () meter lead to th