You should also take a peek at the rubber o-ring/gasket that is between the tank and the fuel level indicator. I've had to replace a couple. In my experience, you won't get a "leak" - more like a drop or two that spreads itself out on the top of the electrical box.

It's a very easy fix.

- Take the tank off (after you have drained it)
- Flip upside down
- Undo the 4 screws
- Gently lift the fuel level indicator, being careful not to bend the float
- Renew the o-ring and put everything back together