1999 Mercruiser HI-Performance GM 377 EFI Engine Service Manual, Page 227Get this manual

1999 Mercruiser HI-Performance GM 377 EFI Engine Service Manual, Page 227

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CHARGING SYSTEM

- Excitation Lead -(PURPLE)Sensing Lead(REDPURPLE)Ground Lead(BLACK)Output Lead(ORANGE)

4 Connect negative battery cable to battery
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