Intermittent temp and fuel gauge

[Yellowjacket]

I have a 1975 gl1000. The gauges work and then quit together. Fuses seem fine. Where do I start looking. Also, what do you guys recommend to clean connections on the wiring. Thanks

[flyin900]

I use an electrical contact cleaner designed for connectors and wiring. Most auto parts stores will have a version of this cleaner in stock. It sounds like you have a connection issue or there could be a problem with the 7V regulator that supplies the DC voltage to the gauges. There is a small packaged 7 volt regulator in the shelter area on that bike.

The gauges don’t use the 12V DC off the electrical system, they use the regulator which outputs 7V DC and these are known to fail given the age of the components. There are aftermarket ones available. I think someone who is a member on this site has them if you need a replacement part.

The regulator is the lower unit in this picture on the left section of the shelter with the three male spade connectors as shown.

FF32A66C-9044-4801-90B5-5A18B2AFEFAB.jpeg (234.23 KiB) Viewed 106 times

[Yellowjacket]

Thanks for the reply and the picture. that helps a lot.