Voltage bounce

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Jul 29, 2010 | 09:01 PM

eraser5

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Voltage bounce

My ammeter is bouncing. I know it is a voltage spiking because the lights are dimming in concert with the ammeter bounce.

So do I look at the alt or the regulator? I am leaning towards the regulator. Does the regulator have a separate ground wire? I have some rotten ground wires that I am not sure where they are supposed to go. Maybe this is my problem.

Jul 29, 2010 | 09:10 PM

Blueovals&Blacksmoke

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From: Troy MT

does the RPM have any effect on what its doing? if so its the alt. if not it might be the regulator.

Jul 29, 2010 | 11:18 PM

LCAM-01XA

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The VR grounds through its base, but it grounds to a metal plate that's bolted to a plastic inner fender - there is a ground wire from that plate to the outer fender (steel), and yes you need it to be there.