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04-20-2019, 10:16 AM
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#1 |
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Not Yet Wild
Join Date: Mar 2019
Location: CT
Posts: 22
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G9 project, getting 17.5V at the battery
I have wrapped up a complete engine rebuild on a G9 cart I acquired over the winter. Cart is pretty much stock, runs great everything seems good. I checked the voltage at the battery when cart was in neutral and I'm getting 17.5v to at the battery. In my experience with carts, I've never seen a voltage regulator fail on the high side of things, only fail and not work. Just looking for some input on this! Thank you for your time.
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04-20-2019, 09:08 PM
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#2 |
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Not Yet Wild
Join Date: Apr 2012
Posts: 49
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Re: G9 project, getting 17.5V at the battery
I have a G22. Output is usually >16 volts. I think the theory is if used on a golf course, there isn’t much charging time because of start/stop. I would think it would be extremely hard on batteries used for non golf use....but I guess time will tell.
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04-21-2019, 09:36 AM
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#3 |
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Gone Wild
Join Date: May 2011
Location: Pittsburgh
Posts: 2,953
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Re: G9 project, getting 17.5V at the battery
17.5 is high and I have seen some voltage regulators fail high like that. I would get another one.
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04-21-2019, 07:11 PM
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#4 |
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Not Yet Wild
Join Date: Mar 2019
Location: CT
Posts: 22
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Re: G9 project, getting 17.5V at the battery
I ordered a new one. Come to find out, the current voltage regulator is from a G1, so it was "modified" when installed to fit properly. Gonna go with the new one and re-evaluate. Thanks Folks!
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04-21-2019, 07:28 PM
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#5 |
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Gone Wild
Join Date: May 2015
Location: Central Florida
Posts: 2,114
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Re: G9 project, getting 17.5V at the battery
Yamahas are prone to this issue, even on the drive model. You can modify the wiring so it charges at 14.5 volts, but see if the voltage regulator fixes it.
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04-25-2019, 08:39 AM
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#6 |
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Not Yet Wild
Join Date: Mar 2019
Location: CT
Posts: 22
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Re: G9 project, getting 17.5V at the battery
So when I plug in the new voltage regulator the 10A fuse blows. I haven't had time to troubleshoot yet, was playing with it before work this morning, sounds like a clear wiring issue to me, so I'll have to chase that down. This sound like a familiar issue with G9's?
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04-25-2019, 08:43 AM
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#7 | |
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Gone Wild
Join Date: Jun 2015
Location: Philippines
Posts: 570
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Re: G9 project, getting 17.5V at the battery
Quote:
I guess the answer... |
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04-25-2019, 08:53 AM
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#8 | |
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Nincompoop village idiot
 Join Date: Apr 2018
Location: Michigan
Posts: 9,690
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Re: G9 project, getting 17.5V at the battery
Quote:
This is a familiar issue with the cheap $20 amazon/ebay voltage regulators. |
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04-25-2019, 09:43 AM
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#9 |
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Not Yet Wild
Join Date: Mar 2019
Location: CT
Posts: 22
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Re: G9 project, getting 17.5V at the battery
Aftermarket, I have a spare OEM part I am going to try later today, and if that works then I've learned my lesson.........
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04-25-2019, 10:12 AM
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#10 |
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Not Yet Wild
Join Date: Mar 2019
Location: CT
Posts: 22
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Re: G9 project, getting 17.5V at the battery
Where is the best place to procure said VR?
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