Stator Numbers


Information and questions on GL1000 Goldwings (1975-1979)
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phoenixtubs
Posts: 28
Joined: Mon Jun 01, 2015 2:56 pm
Location: Chicago, IL
Motorcycle: 1985 Interstate
1987 VT700C Shadow
1978 GL 1000

Stator Numbers

Post by phoenixtubs » Tue May 15, 2018 8:12 pm



HI, 78 GL1000. I did some research in the forums, and I'd like to run these numbers by you and see what it tells you about the status of my charging system.

At idle, 1100 rpm, I'm showing 14.6 volts at battery.
At 3000 rpm I'm showing 15.10 volts.
If I test the black regulator to positive battery terminal I get .55 volts.
I did not test a red wire on "diode" because I'm not sure what that is.

Anyway, what do you think?

Thanks!
Ed



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Fred Camper
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Location: Metro Detroit, MI
Motorcycle: 1977 GL1000, 1976 LTD GL1000

Re: Stator Numbers

Post by Fred Camper » Tue May 15, 2018 9:04 pm

14.6 at 1100 rpm seems good, and 15 at 3000 just a touch high. The output will drop off when the Stator is hot. So best to check it after a long ride.

DaveO430
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Location: Amity. Ar
Motorcycle: 2010 GL1800
2004 Suzuki DR200

Re: Stator Numbers

Post by DaveO430 » Tue May 15, 2018 9:57 pm

phoenixtubs wrote:
Tue May 15, 2018 8:12 pm
HI, 78 GL1000. I did some research in the forums, and I'd like to run these numbers by you and see what it tells you about the status of my charging system.

At idle, 1100 rpm, I'm showing 14.6 volts at battery.
At 3000 rpm I'm showing 15.10 volts.
If I test the black regulator to positive battery terminal I get .55 volts.
I did not test a red wire on "diode" because I'm not sure what that is.

Anyway, what do you think?

Thanks!
Ed
That .55 volts is the key. The regulator thinks the battery is at 14.05 when it's actually 14.6.

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virgilmobile
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Motorcycle: 1988 GL1500 I
Previously owned
78 GL1000
81 GL1100
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83 GL1100 I
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84 GL 1200 I

Re: Stator Numbers

Post by virgilmobile » Wed May 16, 2018 8:01 am

To get the battery voltage back down at a high rpm and avoid boiling the battery...
Add a simple relay "fix" to the black wire feeding the regulator.
Cut this wire a few inches from the connector.
Use the harness side to operate the relay...It will need a ground.
Attach a fused (5 amp) #18 wire from the battery positive post and tie it to the switch part of the relay..the other half of the switch part of the relay feeds to the module side of of that black wire.
When the bike is running,the relay contacts will provide the module a accurate battery voltage and not the bikes voltage drop in that wire.

phoenixtubs
Posts: 28
Joined: Mon Jun 01, 2015 2:56 pm
Location: Chicago, IL
Motorcycle: 1985 Interstate
1987 VT700C Shadow
1978 GL 1000

Re: Stator Numbers

Post by phoenixtubs » Wed May 16, 2018 8:17 am

virgilmobile wrote:
Wed May 16, 2018 8:01 am
To get the battery voltage back down at a high rpm and avoid boiling the battery...
Add a simple relay "fix" to the black wire feeding the regulator.
Cut this wire a few inches from the connector.
Use the harness side to operate the relay...It will need a ground.
Attach a fused (5 amp) #18 wire from the battery positive post and tie it to the switch part of the relay..the other half of the switch part of the relay feeds to the module side of of that black wire.
When the bike is running,the relay contacts will provide the module a accurate battery voltage and not the bikes voltage drop in that wire.
OK, thank you I think I'm going to do that. I saw in an earlier thread that you posted a wiring diagram on how to do this, hopefully I can follow along. Remedial level electric skills I'm afraid...

Ed

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virgilmobile
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Previously owned
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82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: Stator Numbers

Post by virgilmobile » Wed May 16, 2018 10:59 am

Just pay attention to the relay terminals.
There's either gonna be 4 or 5 depending on what relay you have.Theres plenty of documentation for them.

phoenixtubs
Posts: 28
Joined: Mon Jun 01, 2015 2:56 pm
Location: Chicago, IL
Motorcycle: 1985 Interstate
1987 VT700C Shadow
1978 GL 1000

Re: Stator Numbers

Post by phoenixtubs » Wed May 16, 2018 4:08 pm

One question - if I want to test it first by jumping a wire from the black wire at the regulator to the positive terminal at the battery, can I just stick the test wire in the back side of the regulator plug, or do I need to cut the existing black wire and splice my test wire to that?

Thanks,
Ed

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virgilmobile
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Previously owned
78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: Stator Numbers

Post by virgilmobile » Wed May 16, 2018 5:07 pm

Go ahead..just put a fuse in that wire at the battery.If you leave it connected you won't be able to shut off the bike.

phoenixtubs
Posts: 28
Joined: Mon Jun 01, 2015 2:56 pm
Location: Chicago, IL
Motorcycle: 1985 Interstate
1987 VT700C Shadow
1978 GL 1000

Re: Stator Numbers

Post by phoenixtubs » Sat May 19, 2018 10:51 am

I just want to say thank you to virgil, and everyone else who chimed in to help. This is my first GL1000, and last year it wasn't even running. Now, it's ready to be my companion as often as I can get out on the road. I did all the work myself thanks to people like you who populate this forum. That makes my GL1000 that much sweeter to ride. Thanks to all of you.

I managed to install my relay by following excellent instructions here and on older threads. Now I'm getting voltage readings in the mid 14's instead of over 15. I never woould've even thought to check this if it weren't for forums like this.

I'm not near a Guru, but I did take some pictures and I hope that these will contribute to helping others down the line.

I pulled the male and female blades out of the regulator's plastic connector:


I ran a test wire first, along with an inline 5 amp fuse per virgil:


Here's my wire from the + battery to the relay, with the inline fuse:


All done except for insulating:
Attachments



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virgilmobile
Posts: 8362
Joined: Sun Sep 19, 2010 5:39 pm
Location: Denham Springs,La.
Motorcycle: 1988 GL1500 I
Previously owned
78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: Stator Numbers

Post by virgilmobile » Sat May 19, 2018 11:53 am

Looks good.Im not crazy about the glass fuse holder but if kept clean there fine.Ive had my share of corrosion on the contact area.
Do check the battery level every few months if it's that type.(flooded cell)...
Happy riding



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