leaking Carb

I have a carb based fuel, leak from the throttle plunger thingy (Good Technical Wordage Eh) does a rebuild kit have the proper stuff to fix this? I have never worked on a carb before, other than messing with the idle, and A/F mixture. I do have mechanical experience I have replace most everything on a car at some point, other than tranny parts and bearings. I have a good collection of tools. Is this something I should leave to a pro or something I can take on myself. It is a monster carb :---) (Carter 1BBL)

Robb