I am hoping you guys can help me out on an odd situation.
I bought a 2007 Dyna Lowrider new.
Shortly after purchasing the bike I bought a LED Skull gas gauge and slapped it on the bike. I remember there was more instructions about wiring that I did not complete.
Finally got the bike back out of storage and looking to finish my leftover tasks.
Gauge still works fine, but the low fuel light comes on when the tank is topped off.
Unfortunately they stopped making that particular part back in 2010 and the new model does not require the same additional wiring of the pre-2010 models.
I am hunting for either help to correct the wiring for the mod, or preferably locate the original instructions for the gas gauge.

There is alot of old chat on forums about a fourth grey wire from the new gauge harness you simply run into the instrument cluster, however the gauge I have only has three wires coming from it.
anybody around here have any ideas?

 

is this a hd unit and if so, p/n if you have it.

 

This is a HD part
it looks just like 75098-08A
The new LED gauges may have different part numbers than the pre-2010 Gauges. Anybody able to verify that?

 

https://serviceinfo.harley-davidson....9?locale=en_US

will this help

 

Thanks, but no this is for the revised part.
that part does not require the additional wiring.
plus it says it does not fit my bike, so something must have changed.
I am starting to wonder is the best course of action is just pull the speedo up and try to make the low fuel light never work. The gauge does just fine informing of fuel level.
I dont really want to just kill the light because I want the light to work during a diagnostic test, so I guess I need to trick the ECM into thinking i always have gas. Any ideas? Do I cut a wire or supply constant power to something???
thanks

 

so the number you posted is for the new model. the old one you have has numbers on it?
how about a pic of the wiring?

 

Not able to locate a part number on the item, but when I took it apart to look I did find this mysterious grey wire!! Dumb me just left it coiled up under the gauge....
It is hooked up to a pole that is labeled 3v.
according to other forums, i just need to run the grey wire and connect it to an orange and yellow wire on pole 9 of something....

 

In case anybody is wondering..
https://www.hdforums.com/forum/dyna-...-06-fxdbi.html

 

just by reading the linked discussion and your posts, and without referencing any wiring diagrams showing the speedometer wiring pinout, I would assume that you are supposed to connect that gray wire to pin 9 of the speedometer. You should have a wiring diagram in your manual, but that could be the control for the low level light...