Before you buy a carburetor repair kit, make sure you know the model and type of your carb. This will help as there are many very similar models and they have different parts in the repair kits.
Second, have you ever repaired a carb before or is this your first time?
If its your first time then I don't recommend doing it. There are too many things to learn and you should know how everything works before you touch your carb.
Read a good book about carbs first so you get the theory down pat. Then carefully study from someone who knows what he is doing. I recommend John Passini's "Weber Carburetors".
Then go onto the internet and search for the exact specs of your carb. Hopefully you will even find an exploded view. Study that carefully until you know every part by heart.
If you don't study and attempt this blind chances are you will be worse off than before.
As a rule, the half-literate roadside mechanics whose favorite tools are visegrips and hammers are not the people you want dismantling your carb. Those people should wrestle gorillas for a living rather than repair carbs.
Carburetors (especially Webers) are precision devices for metering air and fuel. They do not take kindly to ignorance and brute force. Respect them and the skill and expertise that went into making them.