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I found a really cool voltmeter that looks just like the speedo and tach!!
Don't ask for pictures cause I have tech difficulties right now.
Anyway...... I read a lot about where to wire it up and people were using the right lamp in the headlight housing. Sounded easy enough to do so I did just that. Not so good!
When I tested at the battery I was getting a solid 14 volts. From the right running light was 1 1/2 volts less!!!
Here is what I did. Under the left plastic cover in front of the tank I found a coil. I tapped into the outside lead for the positive and used the ground in the headlight shell for the right running light.
Now I get the same readings that I did directly from the battery.
Very simple to do andit works bitchin!!!:lockd::lockd:
 

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I just wired directly to the battery and used the headlight feed to close a relay to turn on the meter, no battery drain that way.

Jon
 

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Sounds like you have a voltmeter similar to mine, an old mechanical type. I had similar results as you, even the small bulb in the gauge caused a voltage drop if wired in the same circuit. I ended up wiring the gauge to my heated grip wire harness, which is direct connect to the battery. The bulb is wired into the license plate bulb circuit. I do get a fluctuating voltmeter needle when the grip heaters are on (using a heatroller for them), accurate otherwise.
 

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Ba dum dum, ching...
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I just wired directly to the battery and used the headlight feed to close a relay to turn on the meter, no battery drain that way.

Jon
Jon, what relay did you use and where did you locate it (on the bike)

R
 
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