GL1200 different voltmeter install


Step-by-step tutorials on how to maintain and fix your GL1200
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JGWwi
Posts: 5
Joined: Sun Jun 19, 2016 10:26 pm
Location: Mount Horeb, WI
Motorcycle: 1985 GL1200A Aspencade
1985 Honda Shadow VT700C

GL1200 different voltmeter install

Post by JGWwi » Sat Jul 08, 2017 1:48 pm



I have a 1985 Aspencade GL1200A that I got about a year ago. Last year I did find the stator yellow wire plug was burnt bad so I eliminated the plug and spliced in extra wire length with butt connectors to be sure wire was good. The dog bone connector was good. This year I did the dog bone main fuse upgrade to a blade fuse after inspecting the connection again and seeing some burning there now also. I had been periodically checking my stator/charging status with a voltmeter and did not have any real problems when checking (maybe a little high at times 15.0 DCV at highway speed).

Decided to go ahead and do the Poorboy Conversion last month (used Don's Mounting Kit). Very happy with the results. I did want to monitor the charging more closely/consistently after the Poorboy conversion so I bought a cheap voltmeter and mounted it. This saved me a couple of times when I was out riding and suddenly had evidence the charging had stopped (blown fuse to alternator). I originally wired the alternator with 10 gauge wire and 30 amp blade fuse thinking that was the rating of my main MC blade fuse. Obviously the new alternator can put out more than 30 amps (up to 55 amps), so I upgraded to 8 gauge wire and a 50 amp resettable breaker...problem solved!

My mounting of the voltmeter seems unique and I like it a lot as it is easy to read. Actually it is more easily seen than my dash LCD speed etc. Works well in bright sunlight also. I used a piece of an old mudflap and created a mounting bracket for the voltmeter by cutting to desired shape, cutting/drilling/filing a hole for the voltmeter itself and then heating/bending the mudflap mount to the angle I wanted for the viewing of the voltmeter. I then attached it via a small bolt through the access hole for the headset cable(?) and voltmeter mount. I don't use this access hole so this was the perfect solution without cutting a different access. Just thought I would share this as a possibility for others if they like the result.


Voltmeter connections
Voltmeter connections


Rider's view
Rider's view


Closer view of mount
Closer view of mount


Voltmeter on
Voltmeter on


Closer view when on
Closer view when on




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SlowTyper
Posts: 79
Joined: Fri Jun 25, 2010 7:37 am
Location: Pierre, SD
Motorcycle: 1985 GL1200 Aspencade

Re: GL1200 different voltmeter install

Post by SlowTyper » Tue Aug 01, 2017 12:15 am

My neighbor wanted a voltmeter on his GL1200 so that he could constantly monitor his charging voltage, and thus get advance notice if his stator failed to charge. (He has had three stator failures, and two bad connections have gotten him in trouble in the past. He rides a lot!)

He ordered this meter from Amazon and it was simple to drill a hole on the right side of the fairing to mount it. https://www.amazon.com/gp/product/B01HO ... ingdocs-20

Because the meter has such low power consumption, we wired it directly to his battery. This means he knows his actual battery voltage, rather than the voltage at some point in the wiring (such as the fuse panel, which is subject to voltage drop from the key-switch and other connectors and wires). This also lets him keep tabs on his battery over the winter, and charge it as needed.

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