[supereal]

The King-Seely sender was a fine part of the gas gauge sender for many years, but eventually caused the kind of problems you have posted. There is no adjustment, and the available units are a simple variable resistor operated by the float arm. If the float arm is correctly bent, and the float itself isn't damaged, it is less accurate than the K/S, but will give you an approximation of the fuel level so you don't run out.