91 Ultra Fuel Gauge Problem.
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Road Captain
Joined: Nov 2009
Posts: 737
Likes: 4
From: Scotland,UK
91 Ultra Fuel Gauge Problem.
I removed the plastic float & fittings,inc.2 wires, from my 91 Ultra Gas tank as I was taking tank of completely. When I replaced everything,I switched the Ignition ON...the Fuel gauge pointer went straight to FULL! I had only about a 1/4 tank of gas in it.After a second dismantle & wire check,ignition ON ... the pointer on the Gauge went straight to FULL again. I removed the plastic float & assembly from the fuel/gas tank and moved the float by hand. The pointer in the Gauge went up & down (Empty-Full) as it normally would. On refitting everything again I now find that the Gauge pointer is still going straight to FULL when Ignition is ON, again even with less than 1/2 tank of gas.
I know there is a cork type gasket round the rim of the fitting on the tank and I was wondering if there could be a "ground" problem with the wire. Any input/advice will be greatly appreciated. Bungo
I know there is a cork type gasket round the rim of the fitting on the tank and I was wondering if there could be a "ground" problem with the wire. Any input/advice will be greatly appreciated. Bungo
Cruiser
Joined: Dec 2008
Posts: 234
Likes: 4
From: Courtenay, BC, Canada
I removed the plastic float & fittings,inc.2 wires, from my 91 Ultra Gas tank as I was taking tank of completely. When I replaced everything,I switched the Ignition ON...the Fuel gauge pointer went straight to FULL! I had only about a 1/4 tank of gas in it.After a second dismantle & wire check,ignition ON ... the pointer on the Gauge went straight to FULL again. I removed the plastic float & assembly from the fuel/gas tank and moved the float by hand. The pointer in the Gauge went up & down (Empty-Full) as it normally would. On refitting everything again I now find that the Gauge pointer is still going straight to FULL when Ignition is ON, again even with less than 1/2 tank of gas.
I know there is a cork type gasket round the rim of the fitting on the tank and I was wondering if there could be a "ground" problem with the wire. Any input/advice will be greatly appreciated. Bungo
I know there is a cork type gasket round the rim of the fitting on the tank and I was wondering if there could be a "ground" problem with the wire. Any input/advice will be greatly appreciated. Bungo
Good luck
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Road Captain
Joined: Nov 2009
Posts: 737
Likes: 4
From: Scotland,UK
Hi,No not yet! Ive been too busy riding while the weathers good. When out riding Im keeping the Gas tank topped up just to be safe! Bungo.
Elite HDF Member
Joined: Sep 2007
Posts: 4,468
Likes: 12
From: Bluffton, South Carolina
There should be a little brass piece around one of the holes in the gasket. That is a ground. However if it works when you remove it, you may have it in improperly and the tank tunnel is holding the float up. Try wiggling the wires to check for a short. Make sure the wire comimhg from the sending unit has the little non-conductive washer under it. These are some of the more "classic" problems. Hope this helps.
Thread Starter
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Road Captain
Joined: Nov 2009
Posts: 737
Likes: 4
From: Scotland,UK
There should be a little brass piece around one of the holes in the gasket. That is a ground. However if it works when you remove it, you may have it in improperly and the tank tunnel is holding the float up. Try wiggling the wires to check for a short. Make sure the wire comimhg from the sending unit has the little non-conductive washer under it. These are some of the more "classic" problems. Hope this helps.
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