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[chuck hahn]

I have been working on my winter project.. Its a 78 GS 750 E with VM26 carbs. Yesterday i started it and let it warm up well so i could do some charging sytem checks. Idled and purred like a kitten no problem. Today i started it because my neighbor wanted to hear it run and the #1 and #2 carbs are now leaking out the airbox side of the carb throats. The tank has been coated so i know there hasnt been anything sucked up from the tank. I am suspecting that the floats had stuck and took a ratchet handle and gently tapped on the bowls a bit to see if that changed anything and to no avail. Any suggestions??

[Nessism]

You have a couple of stuck floats chuck. Time to pull the carbs.

[chuck hahn]

Thats what i had suspected.. Will pull the carbs and open up the two bowls and see whats going on.. Is it a good idea to gently blow some compressed air back through the float channels??

[KEITH KRAUSE]

A leak could be several things.
Sometimes a bit of grit or ? will stop one or more float valve needles from sealing. A coated tank doesn't mean something couldn't get through.
Float valves can develop small burrs on their sides. Their springs can get weak or the tip wears down/grooves. The float valve seat may need a new gasket. The float can stick or need adjustment.
Sometimes part of the problem is a defective vacuum petcock.
With short tools you can access the bowl screws and check things out and do a partial cleaning/flush if you like. Takes a little finger dexterity to re-install valves and floats but if you know how it beats taking the carbs off (unless you think you need to do a thorough inspection/cleaning.) Bowl gaskets may need replacing when disturbed.
Replace any stock Phillips bowl screws with Allen type.

[chuck hahn]

Well guys its not good news to report..None of the floats were stuck but when i took the bowls off the two offending carbs it wasnt pretty. First whoever was in these carbs before i inherited it just used silicone and the old bowl gaskets. Secondly there is scale all over around the chole pickup tubes and its a sure thing everything else is gunked up too. So it will be a full tear down and soaking in the berry juice. Thank god its winter and we cot a few months to get this beast all shook down and debuggered..