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Scarab wiring

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Old 06-27-2007, 08:56 PM
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Join Date: Oct 2006
Location: Willis, Texas
My Boats: 1990 Scarab Nova ST
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Scarab wiring

I recently changed all the guages in our 91 twin 454 Nova ST.
There is a white wire that is in the harness and it obviously is not hooked to anything. There was another white wire jumpered to the blue panel light wiring. Anyone know what a white wir is used for in a scarab harness? Thanks
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Old 06-28-2007, 02:41 PM
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in my scarab it is the anchor light circuit; however if it is jumpered to to yourblue wire instrument panel lighting is may be for compass light or the trim/drive indicator panel light. hope this helps. jeff
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Old 06-28-2007, 04:09 PM
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Do a site search for Mercruser wiring.. there has been the whole color coded diagrams posted in the tech section..they are all pretty standard...
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Old 06-28-2007, 04:48 PM
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white is usually panel lighting for guages!
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Old 06-29-2007, 02:42 PM
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Scarab used white for docking lights. Should be a 14 or 12 gauge (slightly thicker than the rest)
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