Tombstones81 - from recent experience try this: Find a little container that will fit under each carb and then (carefully) drain the gas out of the float bowl by loosening the drain screw (make sure you press the screwdriver hard into the screw so that you don't strip the phillips head). Compare the amount of gas from each carb - it should be about the same. If not, that could indicate your problem (merely draining mine freed the sticky float). It is also very important that the carbs are synched with a proper meter - this home-made crap and 'eyeballing' is just not accurate enough. It's about measuring vacuum pressure, not about how much daylight one can see! I bet your float levels are not even and/or out of spec, and your carbs are not synched. The right hand float got stuck or something like that at the weekend and I got very similar problems to you (except mine didn't actually stall). I reckon you should visit you new friend and start trying to sort the problem yourself. I suspect that the dealers in the U.S. are just the same as in Britain - you're very lucky if you find a good one (and there are many) but lots are only interested in servicing nice new bikes that you've bought from them. They would rather you sell your old GS500 and but some new shiny thing from them.

Good luck

Bassman

go buy two of these   or similar   
http://www.harborfreight.com/fuel-pump-and-vacuum-tester-93547.html

and do the job right or a whole lot more right than a tube of plastic and water

Quote from: cbrfxr67 on July 12, 2011, 08:44:53 AM
Carbs were a buddhalovesyou for me until I learned the magic word, "SYNC."  Now the main advantage to carbs for me = cheap.  Because people don't want to mess with old project carb'd bikes so they are affordable.  And when you get some basic understanding matched with a little patience, it is just a matter of time to get it running right.

I have and can tune carbs, 2 and 4 stroke, yet Buddah has my Carbs.....Too much going on to fiddle with them.....Buddaha are you reading this?

ugh Finally sitting down today! haha

even tho I didnt do much of the work since Im too green.

even more ticked at that POS shop!

they lost the little O ring gaskets under the top of the carb caps.
Looking at my lil baggy of old parts from it...
Got One I know will fit and one other one thats a Little bit bigger, so I probably need at least 1 now.
atm there is none in either carb..... ugh

he took a look at the plugs and said it running Very lean.
didnt get the photo of them yet to post them.

and need new Jets.

The main jets in there now are 122.5 (he said those are Not good!)
because the only thing added is an aftermarket exhaust.

couldnt get the smaller jets out as we didnt have the proper screwdriver. (whatever their called)

So!

I need new Jets.
All that is on there past stock is an aftermarket exhaust.

Need some suggestions please

Tyvm


(edit)
also.
Where can I get the Little O gaskets under the carb caps? those Very small ones.
Possible to match them up at a hardware store or something?
Bike dealer
or Have to buy them online?

bump

Sorry, the quicker I get help, the quicker I'm back on the road! 
(hopefully) hahaha

94 GS500
Need help on what size Jets to get with Only an aftermarket exhaust on. (all new jets)
and what Specific screw driver that will Fully work on taking the smaller jets out with a VERY small chance of easily stripping them by using a screwdriver thats Off a lil bit so to speak.
(it would be easier then removing the carbs and taking them to a hardware store and just trying out which one works The Best as they are in there pretty good)

Also help on where to get the Tiny O ring gaskets on the top of the carbs, under the cap next to the top of the floats.
PM me if anyone has any extras they would be kind enough to sell asap  
http://www.cheapcycleparts.com/model_years/3546-suzuki-1994-gs500e/assemblies/124858
#26 in the diagram

(edit)
Now im a bit confused.
Wrenching on it yesterday, was told 122.5 was the main jet size and wasnt good.
Not 100% sure if he said he thinks they werent stock or not (I worked all night and tired so my brains on Fumes!)

but googled stock GS jet sizes and came up with.
The stock jets for the GS500 are:
1989 - 2000: Pilot 40 (37.5 USA), Main 122.5
2001 - 2003: Pilot 17.5, Mid Main 60, Main 127.5
2004 - 2007: Pilot 17.5, Mid Main 60, Main 130

so apparently being a 94, it has stock size jets in it.

Still going to replace the jets on whatever is Best suggested tho.
But im just confused as to how it could be running Very lean and badly at that he said when it wasnt heavily modified and still had the stock size jets in it.
and yet the garage "Said" they adjusted them.

I just hope new Jets, new tiny O rings, and probably replace the petcock as well as all new hoses fix's all my problems.

Im just looking crap up and expecting to see something Way off (like the jets that are stock size) but not finding that and cant come up with a clear indication as to wth is causing the problems before and now.

also, the carbs appeared to be sync'd up by eyeballin it.

okay! enough thinking on a brain screaming for sleep as im probably making no sense.
Goodnight

A wide flat head screwdriver would work just fine for the main jets (if they are what I think). Or a screwdriver bit in a 1/4" socket- easier to work with.

Buy the next 2 sizes of main jets and put in the biggest size. If it's too rich at WOT, put in the smaller size. Your current pilot jets "should" be ok. But a small washer or 2 under the needle would probably help.

Can't help with the o rings. Order new from a dealer? Might be able to find some generic o rings that would fit, but I would still get OEM ones.

1  You should have taken it back to the shop and have them fix their prob....at their cost....you didn't lose the o-rings.....they did

but since you jumped back into the carbs......shop will not touch it unless you pay more

http://www.harborfreight.com/397-piece-metric-o-ring-assortment-67580.html

or send carbs to that pain in the A$$ up in charlotte and he will sort them out for you for a small nominal fee

O rings-I get those at the hardware store.I use the neoprene O rings.Take your carbs.

Jetting should be 40 pilots(37.5 is to lean)130 mains(127 will work at 5000 feet above sea level or higher)

I wouldn't worry about adding washers to the needles unless part throttle is off.

Double check your float levels.The fuel level should be right at the split between the carb body and float bowl.