What is the reason for the motorcycle's fuel gauge not moving when the key is turned on?
2 Answers
The reasons for the motorcycle's fuel gauge not moving when the key is turned on are as follows: 1. Electricity: The fuel gauge pointer has no power. 2. Float: If there is power, check the fuel level sensor, commonly known as the fuel float. Short-circuit the two wires of the float with a conductor; if the fuel gauge responds, it is a problem with the float. 3. Fuel level: The fuel level sensor is damaged. Relevant information is as follows: 1. Composition: The fuel gauge consists of a fuel level indicator with a voltage regulator and a fuel level height sensor. 2. Fuel: The function of the low fuel level warning device is to immediately illuminate a warning when the fuel in the tank is less than a specified amount, to alert the driver. It mainly consists of two parts: a sender that measures the fuel level in the tank and a fuel gauge that displays the measurement results to the driver.
The fuel gauge doesn't move after turning the key, an issue I've encountered many times. Usually, it's because the float sensor in the motorcycle's fuel tank gets stuck due to sludge or sediment buildup, preventing the float from moving up and down properly. Loose or corroded wiring connections are also common causes, as those plugs can easily come loose after vibration. Blown fuses happen even more frequently, especially when the voltage is unstable. Checking is simple: first, shake the fuel tank to try and loosen the float; then inspect the fuse box and replace the fuel gauge fuse with a new one; finally, check the wiring connections near the fuel tank. Don't underestimate this issue—if the fuel gauge doesn't work, you won't know the fuel level, and pushing the bike after running out of fuel on the road is miserable. I recommend regularly cleaning the inside of the fuel tank to prevent sediment buildup.
