I just got a 92 gs500e and I went and had neddles and seats put in the carbs and when I got the bike back I was riding it and it started to bogg out and die so I took it back in and they said the petcock seal or the gasket was broke so would this cause the cars to be messed up

Could be a million things.  What you describe does not sound right about the petcock seal.

Some obvious things come to mind:

--Did they clean the carbs, or just replace the needle and seats?
--Do you have fresh gas?  Not months old gas, but fresh gas?
--Check valve clearance.  If you have never done this, it's time.
--Look at the boots between the carbs and the engine.  Any leaks will cause a lean mixture.  Spray some WD-40 all around the carb boots with the engine running.  If the engine speed changes, you have leaks.  Tighten the clamps, or simply get new ones.  Don't forget the O-Rings on the boots.
--Underneath your carb plastic diaphragm caps, there is a little o-ring for the older model carbs.  If missing or worn, it will lean out the mixture.  Make sure it's there and in good shape.  Search the forums, there are pictures of good vs. worn O-Rings.
--Check exhaust bolts to make sure they are tight.  If not tight, it tends to lean out the mixture.
--Underneath the fuel tank is a shutoff valve.  Make sure it is straight up and down.

Thats the problem im having it could be a million things

Sounds like time for you to get to work.  Jester already gave you some points to get on.  Let us know how it goes and good luck.

Bob,

We've all been there. Is it this?  Is it that?  What could it be?

The above are the most common things it could be. Some may require $$, some may not. Most of us have learned the hard way (some without this forum) on how to work on bikes.

Let's take me for example. I had a bike once that would die on the highway. I kept at it and fixed it (along with other issues) over the course of a month. It's satisfying to take a step back and say, "I did it!"

It's frustrating, and at times will make you mad. Keep at it, and you'll get it. You have a bike that is 20 years old.   Things fall out of adjustment and need worked on.

Hell, I have a 2009, and I have had to replace some things on it already.

Thanks guy ive had it for a while now and Im just ready to ride but I guess it takes time but hopefully ill be riding soon