2001 Ducati 996 S "guge" Questions

how do I REMOVE the fuel guge from a streetglide ? If the gauge is built into a "cap" on the top of your tank, it's held in by an 0-ring. Carefully wiggle the gauge side to side and pull up. The wires

...a special tool to set this since it's burried inside the casing and you can't get a normal feeler guge anywhere near ...