Fuel Gauge

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Psycheonabike
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Fuel Gauge

Post #1 by Psycheonabike » Thu Jul 18, 2019 4:08 pm

....sometimes it works, sometimes it doesn't...mostly doesn't.

Which end should I check as there a low voltage going into the sensor at the tank...not sure what that means tho?

All advice welcomed!
1982 GL1100 Standard

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BlueThunder
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Re: Fuel Gauge

Post #2 by BlueThunder » Thu Jul 18, 2019 5:04 pm

Make sure your float connections are clean and tight first. Then report back and we can go from there.
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Psycheonabike
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Re: Fuel Gauge

Post #3 by Psycheonabike » Thu Jul 18, 2019 5:09 pm

If it helps there's no response at the dial when I remove the float etc from the tank and manually move it up and down slowly.
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Re: Fuel Gauge

Post #4 by Track T 2411 » Thu Jul 18, 2019 5:32 pm

The fuel gauge uses 7 volts, and is wired through its own regulator. You can (very carefully) remove the metal cover and clean up the contacts where the float lever slides along the wire coil. Some people have had success with that. I say 'carefully' because there's a fine wire connection inside that you don't want to damage...
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Psycheonabike
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Re: Fuel Gauge

Post #5 by Psycheonabike » Thu Jul 18, 2019 5:53 pm

I see. I gather the regulator isn't separate from the unit and replaceable?
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Re: Fuel Gauge

Post #6 by 77Gowing » Thu Jul 18, 2019 6:01 pm

The 7v regulator is not part of the sending unit assembly. It is mounted underneath the LH panel.
Suggest you look at the shop manual.
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Track T 2411
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Re: Fuel Gauge

Post #7 by Track T 2411 » Thu Jul 18, 2019 8:59 pm

77Gowing wrote:The 7v regulator is not part of the sending unit assembly. It is mounted underneath the LH panel.
Suggest you look at the shop manual.

Actually on the 1100's the 7v regulator is tucked under the instrument cluster...
"He that is good with a hammer tends to think everything is a nail" - Abraham Maslow

"If you can't take the time to do it right the first time, how are you ever going to find the time to do it over?" -Unknown

Current Rides:
'Grumpy' - '81 Standard, now fully dressed.
'Layla' - '81 Standard w/dealer installed fairing and Hondaline bags.
'Scarlett' '76 'Survivor' nekkid as a j-bird!

Under Construction:
The 'Jalopy' '78-'79 Mash-up
'Quikie' '81 gl1100I back on the lift, project with the step-son!

In The Shed:
'81 gl1100I barn find aka "Josie, the farmer's daughter." (almost comatose build)
'77 gl1000, roller parts bike.
'82 gl1100I, 'Old Crusty' titled roller parts bike (free!)
'82 gl1100I, My first 'Wing, and an expensive lesson!
New2U Bike? Read Me.

Psycheonabike
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Re: Fuel Gauge

Post #8 by Psycheonabike » Fri Jul 19, 2019 1:53 am

Track T 2411 wrote:Actually on the 1100's the 7v regulator is tucked under the instrument cluster...


There ya go....see, always worth asking eh?

Thanks man.... anim-cheers1
1982 GL1100 Standard

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Re: Fuel Gauge

Post #9 by pidjones » Fri Jul 19, 2019 8:53 am

Replacement 7 volt rgulators are available from the goldwingdocs site.
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Psycheonabike
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Re: Fuel Gauge

Post #10 by Psycheonabike » Fri Jul 19, 2019 3:49 pm

Cleaned sensor with no damage to small wire. No change. Temp gauge works, down the fuel gauge have its own regulator?
1982 GL1100 Standard

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Track T 2411
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Re: Fuel Gauge

Post #11 by Track T 2411 » Fri Jul 19, 2019 4:28 pm

The temp gauge and fuel gauge use the same regulator, so if one or the other is working properly, it probably isn't the regulator.
"He that is good with a hammer tends to think everything is a nail" - Abraham Maslow

"If you can't take the time to do it right the first time, how are you ever going to find the time to do it over?" -Unknown

Current Rides:
'Grumpy' - '81 Standard, now fully dressed.
'Layla' - '81 Standard w/dealer installed fairing and Hondaline bags.
'Scarlett' '76 'Survivor' nekkid as a j-bird!

Under Construction:
The 'Jalopy' '78-'79 Mash-up
'Quikie' '81 gl1100I back on the lift, project with the step-son!

In The Shed:
'81 gl1100I barn find aka "Josie, the farmer's daughter." (almost comatose build)
'77 gl1000, roller parts bike.
'82 gl1100I, 'Old Crusty' titled roller parts bike (free!)
'82 gl1100I, My first 'Wing, and an expensive lesson!
New2U Bike? Read Me.

Psycheonabike
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Re: Fuel Gauge

Post #12 by Psycheonabike » Fri Jul 19, 2019 4:29 pm

Bugger....I guess that means a new sensor then?
1982 GL1100 Standard

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Re: Fuel Gauge

Post #13 by chewy999 » Sat Jul 20, 2019 7:23 am

Connect an ohmeter to the two contacts on the float assembly and then manually operate the float. The reading on the meter should go up and down. That at least checks that part. I soaked my float sender in white vinegar, after very carefully bending the small tabs on the cover to remove it. Worked very well.

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Previous Rides,
1980 CB250N Good to learn on
1981 CX500 good mid range tourer, went to Austria on it!
1983 GL1100C Pride and joy, sold when I bought my 1st house, big mistake
1985 GL650 Silverwing another mistake, horrible bike
1986 CBX550 Good commuter
1989 Suzuki GS750 (1976) cheap and cheerful until a dog ran out in front of me on Xmas Eve, 1991
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Re: Fuel Gauge

Post #14 by Psycheonabike » Sat Jul 20, 2019 7:56 am

Great, will give that a go over the weekend! Thanks...
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Re: Fuel Gauge

Post #15 by Psycheonabike » Sun Jul 21, 2019 4:47 pm

All fixed. Just rewired. Must have been a break in one of the wires.
1982 GL1100 Standard


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