So I was changing the oil and had the filter set for the fuel pump in the drawer, so I would change that and see if there were any goodies in the tank. I dumped the last 1/2 gallon in each tank thru a screen, to my surprise it was very clean and just a few specs of debris. While emptying the tank I could hear something rolling around inside, and found these one in each tank, after ten minutes of shaking it around with last bits of gas running down my arms. I was guessing they came off the petcocks. Showa nuff... screwed them back on good and tight... will see how long that lasts. I noticed that I must have got a rock or rocks between the oil reservoir and the tank; it left some nice gouges in both of them. Gas tank inside. I thought I would throw in a few pics of the fuel pump and the filters for anyone interested. I changed the filter and the screen and I would defiantly do both when you do it. Fuel pump at the bottom of the clutch lever side, left tank…(edit) The silver tabs hold the white plastic that houses the paper filter, pry the tabs up and pull the plastic housing off. There are a couple little tabs that hold the paper filter housing together, pry it apart and you can get at the paper filter. Looks nasty for only 8000 miles. The screen filter. Had to take a picture of the wiring so I didn’t get it mixed up. All the pieces. When putting the fuel pump back in I used some of this to lube the hole in the tank so the pump would slide in nice, it took an even pressure and it dropped right in.