82 Gs 650gl

[GSFAN06]

I have completely changed out the float bowl gaskets.

I have cleaned the carbs out complety changed the jets, changed the needle and seats.

I have blown air through all the parts that needed it, reset the floats and the carbs are still leaking gas.

Does anyone have a remedy to my carb problem?

It is running out of gas and it will only run on full choke when it starts and runs.

Does it sound like a Pet cock issue? There are three hoses running from the tank. The thin long one is connected to the petcock and the middle of the Carb, which is the vaccum. The second hose(closest to the petcock lever) is running down to the carb to give it gas. The third hose is connected to the gasket fuel drain is that a vent hose?

Should I reset the floats, therey are set to the standard, right from the base with a height of 23.1mm.

I have tried everything with these carbs and I also would like to say that Bike Bandit is he best OEM parts dealer and they ship very quickly.

Each week I try something new with the carbs and I wind up buyin something new to remedy this F&*%$#G Leaking carb problem with no true results.

ANY suggestions PLEASE.... thank you for the help guys, this site is awesome.

[waterman]

I hate to be the messenger, but I would say that your trouble could be with both petcock and carbs.

I am not sure about the 650gl, but my 650g only has two hoses connected to the petcock. The outlet closest to the petcock lever is the fuel line. On my g model it is larger than the vacuum line. This petcock has 3 positions, prime, reserve and on. Without a vacuum present to the vacuum line, the petcock should not flow any fuel; if it does it needs repaired or replaced.

Likewise, how are your fuel levels in your carbs? If the floats aren't set correctly, the gas can overflow the carb bowls and show up as a leak.

I am confused as to where you say the hoses from the petcock go. On mine, the vacuum line connects to the motor side of carb #2 near the intake boot on the top side of carb. The fuel line goes around the back (seat) side of carbs between #2 and 3 and I believe connects to a "T" between these carbs. There are also two vent hoses that originate between carbs 1 & 2 and 3 & 4 at a higher point than the gas line connection. On my g, these go up and over the air box.

My advise is to disconnect petcock hoses and check petcock for flow in on or res position. If no flow then problem will lie in carbs. I would then pull carbs and check float height and possibly fuel level in carbs. Finally, before you run motor again, check oil for gasoline. When mine would dump gas it would flood crankcase. Good luck.

[Skyboy8950]

Yes, 3 lines come from the gas tank, but 2 from the petcock. The vent comes from a different part.

I don't have much help to give you as my carburators for my 82 gs650gl are in all their pieces. I would say a float adjustment would be in order, but I don't even know how to do that myself. Could someone talk about that a little?

Sorry, thats all I got.

[GSFAN06]

I am looking at an OEM Pet cock, but not sure if I should buy it. It will run me $51.86 at BB. If I reset the floats should they be lowered or raised with new needles and seats installed?

[Dave8338]

I am looking at an OEM Pet cock, but not sure if I should buy it. It will run me $51.86 at BB. If I reset the floats should they be lowered or raised with new needles and seats installed?

Test your petcock first. Pull the main fuel line to the carb T and with the petcoch in the "run" position, there should be NO fuel flowing from the petcock. Now move it to the PRIME position, fuel should freely flow from the disconnected line. Next...remove the vacuume line from the #2 carb and "easy now" :-D suck on it. If everything is working correctly, fuel should begin to flow from the disconnected fuel line. If not, or it works in any other fashion other than which I describe, remove the petcock and use it as a paper weight on your bench...they work great for that. Buy a new one and leave the repair kits for those who love a little frustration in their lives.

[GSFAN06]

Thanks, I will try that this evening and update the results...

[chef1366]

Would it happen to be #2 carb leaking? The one that the small vacuum line connects to from the petcock?

[GSFAN06]

yes thats the one

[chef1366]

Get a new petcock. You are leaking from the vacuum line and flooding your float bowl. Change your oil also. The gas makes its way into your crankcase. DO NOT run it like this!

[GSFAN06]

wow thanks, I had know Idea

[GSFAN06]

Installed the Petcock runs like crap

I have installed the petcock and it seems to have solved the leaking carb problem.

It seems like it is not getting gas, it will only run with the choke on if I give it gas it stalls out.

What canI do to solve the never-ending fuel problem with my bike.

Some one please give me a solution to the problem. the weather is perfect for riding. but the bike it still sitting around in the garage.

I will be painting the tank ,fenders and side covers in the next few weeks. Once the overall mechanical issue have beeen solved, then I will post pics of the restoration to my (1982 GS 650 Black with a pearl coat)

[chef1366]

Did you follow this

http://www.thegsresources.com/gs_carbrebuild.htm

And use these

http://www.cycleorings.com/

Did you use rebuild kits? Are you using Mikuni jets or aftermarket jets?

[GSFAN06]

Fuel issue

Hey Chef,
I have followed it to the T. I even have prinouts in the shop. In the beginning thread I metioned everything I have done to the carburator there is not much else I can do to the carbs except reset the floats to a non factory setting if need be.

[Dave8338]

Are you running pods or a stock airbox/filter combo? If you are trying to sort this issue out without the filter/filters in place and oiled, you may never get to the bottom of it.

Didn't see it posted anywhere so I thought I'd ask.

[GSFAN06]

I am running the stock airbox and filter -(Brand New)

With all that has already been done to the carbs and petcock, could it be some kind of idle adjustment?
Im thinking either the one beneath the carbs in the midlle or up at thethrottle cable.

I am not sure what do do at this point I have trouble shot all that I can think of and by looking it up in the manual...