AS1 float bowl question

[Trailrider]

I am adjusting the float level on my 2010 EC300 and have a question. Should fuel leak when the floats are pushed all the way to the top? If not how can I stop the flow? It dribbles fuel whenever the petcock is on. Any help would be appreciated.
Trailrider

 

[motopsycho87]

Take the assembly apart, clean out the fuel inlet where the needle sits with carb cleaner and a small cotton bud. Fit a new needle and adjust float height.