Why is the fuel gauge of CFMOTO SR250 inaccurate?

2 Answers
WyattRose
08/31/25 8:30am
The inaccuracy of the fuel gauge may be due to a malfunction in either the display system or the measurement system of the gauge. If you encounter this issue, it is recommended to seek repairs as soon as possible. Display System and Measurement System: The fuel gauge consists of two systems: a display system and a measurement system. The display system shows how much fuel remains in the tank, while the measurement system measures the actual amount of fuel left. Simply put, the measurement system sends signals to the display system, which then presents the data on the fuel gauge. The measurement system is composed of a float, a metal rod, and a variable resistor inside the fuel tank. The position of the float changes with the fuel level in the tank, which alters the position of the metal rod and subsequently the variable resistor to measure the fuel quantity. Solution: The issue may stem from a faulty float in the fuel pump, causing the fuel gauge to display inaccurately. It is advisable to inspect this component. If damaged, replacement is necessary. Note that some vehicles allow for the float to be replaced individually, while others require the entire fuel pump assembly to be replaced if the float cannot be replaced separately.
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Marian
09/13/25 4:40am
The inaccurate fuel gauge on the CFMoto SR250 might be a common issue, as I've experienced it several times myself. Most of the time, it's due to a problem with the fuel level sensor—such as the float inside getting stuck and not moving, or the sensor itself aging and wearing out, leading to incorrect readings. This component is located inside the fuel tank, and over time, accumulated fuel residue can make the float less responsive. Additionally, loose or corroded wiring connections can interfere with signal transmission. I once used a multimeter to check the wiring and found poor contact, which I then re-secured. Occasionally, the dashboard may display inaccurately due to voltage fluctuations, though this is less likely. It's advisable to regularly clean the fuel tank and inspect the sensor. If the issue persists, it's best to visit a specialized repair shop—otherwise, running out of fuel mid-ride could be a major hassle. For safety, don't ignore small issues.
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