Voltage reading

[Terry Maynard]

Seems voltage is higher running at a lower speed. 11 volts at 70 mph. 12 volts at 50 mph. Does that make sense to anyone?

 

[kerryb]

No, it doesn't make sense (theoreticaly) but electrical can be a wiley one. Where/how are you getting that reading? What other electrical loads are in play at higher speeds?
I don't think you're going fast enough to make the headlight work harder pushing the photons out!

 

[Terry Maynard]

No accessories. All stock 1979 to my knowledge. Reading is strictly from the tank gauge. Just running at 70 I noticed the meter reading around 11 volts. I'd never seen it that low but this is a new acquisition so I'm seen trying to figure it all out. Thanks for info.

 

[dan filipi]

I would verify that meter with a known accurate digital VOM.

 

[pidjones]

Ignition uses more power at higher RPM. Might be marginal charging system (usually poor connections).

 

[kerryb]

Ah ha! I didnt know that about the ignition draw.