GS500 Charging Issue

[pphillips]

Hi there, not sure what to think but I need some advice .

The problem for a while now is that my lights flicker and the light panel lights are dim.  The battery is pretty new, so pretty sure it's not the battery.

At idle, the battery remains at 12.5 volts and even when increasing the revs, there is no difference.  My son just got a GS500F 2007 and his battery goes up to 14 ish.

We replaced the voltage reg between both bikes, same problem, his bike is also still continues to charge.

I tested the pins from stator resistance, all coming back at 1 ohms between 3 pins.  I also checked the AC current out of the pins while engine running, 7.5 ish on each pin. 

I disconnected the connector from stator while engine running, each pin producing around 30v when reving.

Here is the strange thing (with the stator connected back up), when reving, the voltage drops (from 7 to 3 or 4),  I would though this would increase like my son's bike does.

Is this an issue with Stator?

Thanks
Paul.

[The Buddha]

You seem to be flipping back and forth between voltage and current. You check AC current and get 7.5 on each pin ? Is that 7.5 amps ? What's the resistance you're using ? How are you measuring this ? With an amp clamp ?
If using an amp clamp you're better off leaving it connected and checking it 1 wire at a time - sort of separate the 3 wires, get the 2 you're not measuring and use the amp clamp on 1 wire at a time.

Then you disconnected the stator while running and get 30V ?
Then With it connected back you're dropping from 7 to 3 or 4 when revving ? Is that voltage or amperage ?
You may have a bad stator - what is the resistance between the 3 pins on your son's bike ? Weirdly you can have partially burnt stator coils that will raise the resistance, and partial shorts in the coils lowering the resistance you'd read. If those 2 are close enough you can have a stator that can read perfectly fine but make nearly no voltage/current atleast till it really fries - which it will eventually.
My guess is you've got a stator that's going. open the left side and look at it. If you see it with lots of black and crusty spots that = dying stator. Remember stators are mechanical as much as electrical items. They dont die instantly like electronics. They can take 1000's of miles to actually die.

Cool.
Buddha.