Intermittent temp and fuel gauge
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- Chrome Member
- Posts: 116
- Joined: Sat Aug 27, 2016 11:42 pm
- Location: Billings, Montana
Intermittent temp and fuel gauge
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
Curt
1975 GL1000 Red
1980 GS850
1978 Honda CB550 Brat
1981 Honda CB900c MOAB
1977 Honda CB750 bobber
1980 XS1100 current project bike
1970 Honda QA50 Slime Green
1975 GL1000 Red
1980 GS850
1978 Honda CB550 Brat
1981 Honda CB900c MOAB
1977 Honda CB750 bobber
1980 XS1100 current project bike
1970 Honda QA50 Slime Green
- flyin900
- Gold Member
- Posts: 1489
- Joined: Sun Jan 10, 2010 3:50 pm
- Location: Canada
Re: Intermittent temp and fuel gauge
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.
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.
Current Bikes:
1966 CL77 - Honda 305cc - Dual purpose - "Gentleman's Scrambler" was a period moniker.
1967 CL175K0 - Low production number with #802 engine serial- winter 2019/2020 full restoration.
1972 CB350F - Baby Four with low mileage - Cosmetic refresh to the next level 2021/2022.
1978 CB550K - Very original bike with only 7499 Km. from new - light cleanup and refresh done.
1983 CB1100F - Canadian model - DOHC Supersport in pristine low kilometre condition from new.
1984 GL1200 - Standard model in showroom condition - two owner bike from new.
1984 CX650E - Restored summer 2017 - a rare Eurosport model - excellent one owner bike.
1966 CL77 - Honda 305cc - Dual purpose - "Gentleman's Scrambler" was a period moniker.
1967 CL175K0 - Low production number with #802 engine serial- winter 2019/2020 full restoration.
1972 CB350F - Baby Four with low mileage - Cosmetic refresh to the next level 2021/2022.
1978 CB550K - Very original bike with only 7499 Km. from new - light cleanup and refresh done.
1983 CB1100F - Canadian model - DOHC Supersport in pristine low kilometre condition from new.
1984 GL1200 - Standard model in showroom condition - two owner bike from new.
1984 CX650E - Restored summer 2017 - a rare Eurosport model - excellent one owner bike.
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- Chrome Member
- Posts: 116
- Joined: Sat Aug 27, 2016 11:42 pm
- Location: Billings, Montana
Re: Intermittent temp and fuel gauge
Thanks for the reply and the picture. that helps a lot.
Curt
1975 GL1000 Red
1980 GS850
1978 Honda CB550 Brat
1981 Honda CB900c MOAB
1977 Honda CB750 bobber
1980 XS1100 current project bike
1970 Honda QA50 Slime Green
1975 GL1000 Red
1980 GS850
1978 Honda CB550 Brat
1981 Honda CB900c MOAB
1977 Honda CB750 bobber
1980 XS1100 current project bike
1970 Honda QA50 Slime Green
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