No one has mentioned the O-ring on the outside of the float needle seat.
Don't waste money on rebuild kit, as they come with stock jets, and if you have any mods at all, the jetting will be wrong.
Just get seat, needle, o-ring, maybe gasket. Carb Parts Warehouse or Sudco, Yammy Stealership
Unless your choke really bothers you, don't bother replacing, it's 35$