Gas Gauge Issues
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Cruiser
Joined: Oct 2009
Posts: 154
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From: Dayton,Texas
Gas Gauge Issues
I have a 2009 EGC with 26,000 + miles and a couple of weeks ago i filled up my tank before a ride, after leaving and heading out I noticed my gauge moving around. I ignored it for a while but the more i rode and burned fuel it got worse, it will register full and then move back and forth to empty. I have drained the tank and checked all the electrical connections and blew out the vents. Anyone know what is wrong or have seen this before? 
Intermediate
Joined: Feb 2009
Posts: 42
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Mine does the same thing, the mechanic at Harley said it is probably the gauge. He said there is a resistor of some type in the gauge that slow the reading down so you dont see the flux during normal ops. I still havent changed my gauge but I hope when i get around to it, thats all it is.
Road Master
Joined: Jan 2010
Posts: 881
Likes: 13
From: ONT
It could actually be the gauge itself or the wires connected to it may be loose. Does the needle jump around when the bike is idling. If so take a voltmeter to the wires on the gauge and see if the voltmeter jumps around. If the voltage to the gauge is steady it probably is the sending unit. If the gauge only jumps around when you are moving I would be more inclined to believe it was loose connection. If you have to change out the sending the unit consider changing out the return line in the tank at the same time. The fuel lines in the tank have a habit of chafing over time.
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