Volt meter on my 85 Aspencade - Steve Saunders Goldwing Forums

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post #1 of 56 (permalink) Old 09-16-2019, 07:40 PM Thread Starter
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Volt meter on my 85 Aspencade

When I am riding down the road volt meter reads all most 16volts. I have led lights on the wing for the most part but head light and tail and brake and turn's are still incandescent bulbs. Is these something to be worried about ? Or is the volt meter just off a few volts now when I am seating at a red light the volt meter drops to be low 12volts about 11 on the meter.
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post #2 of 56 (permalink) Old 09-16-2019, 08:36 PM
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No way to know what's going on without a reliable volt/ohm meter. And, with a OEM regulator the voltage shouldn't drop like that...unless those LEDs are causing problems.

Why ain't we ridin'?
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post #3 of 56 (permalink) Old 09-16-2019, 08:39 PM
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IMO,
replacing the incandescant bulbs with LEDs unloaded the charging system too much, and the Reg/Rec is not able to control the over-voltage at high RPMs.

Stators put out Full Maximum current at the RPM they are turning at, higher the RPMs, the more current they will output. The regulator must control this by shunting the excess current to ground.

you either have to add enough extra load to pull things back into control, or replace the Reg/Rec with a newer design MosFET style


this link is a good system that is designed for the 1985 goldwing.

https://www.electrosport.com/collect...l1200-goldwing


here are more vendors.
https://ricksmotorsportelectrics.com...-Stator-21_102

this link explains how to install them
https://www.stromtrooper.com/mainten...rectifier.html

this vendor also explains how they work, and sells them.
http://www.roadstercycle.com/Roadste...Regulators.htm
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post #4 of 56 (permalink) Old 09-16-2019, 09:04 PM Thread Starter
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Even B4 I replaced a lot of lites with the LED lights still at ideal volt meter was at 11volts and it ran about a hair over 15volts. But now it is close to 16volts but not right on 16volts. But very close.could I have a bad regulator?
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post #5 of 56 (permalink) Old 09-16-2019, 09:16 PM
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I had no LEDs except for maybe indicator lights on my '85 Aspencade, every signal / tail / stop / head lamp was OEM type. I would often turn on my twin 35 watt Unity fog lights as well to absorb some load load. Still, 13.5-14 vDC was not uncommon at road speed even with fog lights on.. My meter was a SunPro Analog wired through a relay from battery, looked to be accurate enough. Readings at same time, engine off, extra meters straight to battery.
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post #6 of 56 (permalink) Old 09-16-2019, 09:42 PM
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2 things are critical to regulating the voltage output, regulator ground and battery voltage on the black wire at the regulator. If the ground circuit has resistance it can't shunt extra voltage to the frame and if the black wire is not getting full battery voltage the regulator assumes the battery is low and charges too much. If the idle speed is below 1000 rpm it doesn't charge much at all so the voltage will drop.
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post #7 of 56 (permalink) Old 09-16-2019, 09:58 PM Thread Starter
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Yes my wing does ideal low to low really . That is one thing I need to do. Tomorrow B4 I ride it to work is adjust it a bit. It ideals around 800 or so my service manual calls for 1000rpm +/- 100rpm. Will try to hit the 1000 rpm mark but have to do it with a warmed up motor.
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post #8 of 56 (permalink) Old 09-17-2019, 04:42 AM Thread Starter
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Well I rode it home from work and it is on 16volts on the voltmeter . I going to put back in some incandescent bulbs see if that helps. Can't afford the updated regulator / rectifier I thank you for that website they are $109 for my 85 aspencade Goldwing GL 1200. Which I feel is not bad at all. But I've been off work for a little over 7 weeks due to a surgery I had to have done do do I have colon cancer last year. And I just now got back to work as of September 16th. Do you have one other question putting these incandescent bulbs back and does not bring the voltage down then I probably should not ride the wing until I get that voltage back down to around 14 am I correct on that thinking or not please let me know
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post #9 of 56 (permalink) Old 09-17-2019, 05:29 AM
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Quote:
Originally Posted by highriderzr2guy View Post
Well I rode it home from work and it is on 16volts on the voltmeter . I going to put back in some incandescent bulbs see if that helps. Can't afford the updated regulator / rectifier I thank you for that website they are $109 for my 85 aspencade Goldwing GL 1200. Which I feel is not bad at all. But I've been off work for a little over 7 weeks due to a surgery I had to have done do do I have colon cancer last year. And I just now got back to work as of September 16th. Do you have one other question putting these incandescent bulbs back and does not bring the voltage down then I probably should not ride the wing until I get that voltage back down to around 14 am I correct on that thinking or not please let me know
Why would you consider throwing a part at it before you figure out what's wrong?

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post #10 of 56 (permalink) Old 09-17-2019, 09:48 AM
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As Dave said. It is easy test. Take a needle and pierce the black wire. Do the same to both green wires.
Using your voltmeter on DC measure the voltage by placing the red probe in the pierced hole of black wire and the black probe to battery negative post. You should read the same voltage as the meter on the bike.
Again,using your voltmeter on DC measure the voltage by placing the red probe in the pierced hole one of the two green wires and the black probe to battery negative post. You should read zero or near zero volts. Repeat the process on the other green wire.
If you see higher voltage on the green wire/s you have a poor ground somewhere.
If you see low voltage on the black wire you have high resistance somewhere. (poor connection or bad contact etc.)
Use finger nail polish in the pierced holes to keep the weather out.
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Worked on the "big rigs" for 45 years now just riding my Wing whenever I can. Gets cold in Wisconsin.

Last edited by redwing52; 09-18-2019 at 08:46 AM. Reason: Fix an error on my part..
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