Yeah Larry's Shee is right but mine for instance had a problem with the float valve that keeps the float around half way so it drips out of overflow. That doesnt effect how mine runs at all.
Mines on the gas tank shroud on the left. Works great you can see it in this pic http://i1259.photobucket.com/albums/ii557/DCallanan/0510122036.jpg
Fuck takin the seat off every time.