If the fuel gauge on your boat is not working correctly, you could get stuck out on the water. It would not be fun to paddle your way in from a mile out or perhaps even farther. You might think that you need to haul your boat off to the repair shop to have the gauge fixed, but you can troubleshoot the gauge right in the water with the help of a few tools.
Fill the tank with fuel.
Turn the key to the “On” position and notice if the fuel gauge moves at all. If the fuel gauge does not move, then tap the gauge with your finger. If the gauge moves, then you know that you have a gauge that is sticking and may need replacement. If the gauge still does not move, then go to next step.