Reply To: digital fuel gauge level sender – Hyosung
It could be the “fuel gauge” unit itself in the display.
From the TANK sensor to the blue connector plug of the harness = That yellow/black line must have a reading to make sure the level signal is still travelling along the harness.
It is possible to repair the fuel gauge unit in the display (tricky , there is no instructions online) but try the wiring first. But as you said , if the wire from the tank to the display plug is all clear ===> then it will be the actual unit itself inside the display that sweeps the fuel level up & down.
normally , when the bike is switched off, it drops down to zero (empty) , then it rises up when the bike is running.
There is another topic somewhere in the forum where a guy mixed up a GT & GV carby fuel sensor to make his GT work.
I can’t remember what you had before because GT250 have 3 displays. Analogue and Digital Carby and third one is Digital EFi (fuel injection model)
Wirings do change.
If the fuel gauge is in LCD glass (Fully digital glass display) = Then it should be ZERO when fuel gauge is disconnected. The fuel level sensor inside the LCD is controlled by a chip behind the Green Dot Matrix LCD glass. Carby ones can be changed easier but Korea stopped making replacement LCD glass many years ago.
You could find a wrecked GT250 in your area with ANALOGUE display and try it. (Some GT Naked bikes want analogue displays with analogue speedo drive under the left fork = carb models) (It’s rare here in UK i find carb model GT250 with digital display unless it is EFI fuel injection)
Good luck & make a new topic though , so the original person doesn’t get notifications of their thread as they haven’t replied. 👍