carb problem

[Topher P]

Well I just piced up a 94 gs500 with 600 original kms, its bee in storage for the last 12 years.  I had initially cleaned out the carbs as they were a little dirty from sitting all these years.  After that it seemed to run fine.  I took it in for a safety the other day, and the meatheads left the petcock in PRIME position.

I then tried to ride the bike and found a lack of wanting to run, coupled with fuel comming out of the airbox.  I drained everything, redid all the fuel lines, and now the bike only wants to start at full throttle, and then when running, it will not idle, and it is definately running right.

A check of the plugs shows very black and dry.

WTF

I guess my carbs need to be cleaned again?

[Topher P]

As well My filter was soaked, so I tried to dry it out, but i am thinking its toast?

I would order the k and N filter and rejet the thing now, but I want to be able to ride it in the meanwhile.

[NiceGuysFinishLast]

Stuck floats. Search for "Stuck floats" here, and you'll get all you need to know.

[ratz]

There are a number of things to do now, as well as things you should have done.
1>The first thing is it was probably in prime because those "meatheads" had a hard time starting it as well. Which means your carbs may not have been as clean and flowing as you thought.
Clean the carbs, and check the tip of the float needle. make sure it is not hard and crack, or creased. check all the rubber in the carbs ( take a sewing needle to the pilot jet, to make sure it is flowing. just because you can see light through it, doesn't mean it may have gunk reducing the inside diameter). check the floats.
2>Put in new plugs. ( you may have fouled, or saturated them)
3>Change your oil. Some of the gas may have seaped past your rings, and into your crank case, and into your oil ( rare but possible) Please tell me this isn't the original oil from 12 years ago....
4> make sure your petcock, is working properly ( is the vacuum line opening up the petcock diaphram) suck on the vacuum hose and check for flow.  FLow should not stop when you stop sucking.

Next time, if you are at home when this happens, take your plugs out before you crank it over, and that will push out any gas that has accumulated in your cylinders.

One more thing:
with the bike running, spray brake cleaner, or some accelerant near the intake manifolds, and see if the bikes rpm's increase. You may have aged, cracked intake boots.