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Ok, I searched the forums for the answer to this and couldn't quite find anything that sounded like my problem. I recently had my Carbs rebuilt on a 77 GS750. The petcock was also leaking (the diaphragm was installed wrong) but that is now corrected. Whenever the petcock is set to PRI, RES, or ON (I have an "off" position too), there is a fairly significant fuel leakage coming from the carbs. The fuel looks to be leaking only from the 1 and 2 (the side the shifter is on) carbs. I originally thought that the floats weren't working right and reset those. After the problem persisted I figured that maybe the needles weren't seating correctly so I took the bowls off, manually pushed up the floats and turned on the gas. There doesn't appear to be any leakage coming from the needles themselves. The fuel seems like it's coming from the engine side of the carbs and leaks whether the bowls are on or not, and whether the floats are up or down. With the bowls off, I can start and stop the flow of gas through the needles but this is definitely coming from somewhere else. I was under the impression that gas only entered the carbs through those float needles. With those "closed" there should be no fuel flow at all, right? What am I missing here?
My carbs are VM style so there shouldn't be any O-rings in play here. The other two (3 and 4) don't seem to be having any problems at all. Could it be a bad connection between the 1 and 2 carbs (gas must pass between them as there's only one fuel filler line that serves all four carbs so there must be a pass through)?
My carbs are VM style so there shouldn't be any O-rings in play here. The other two (3 and 4) don't seem to be having any problems at all. Could it be a bad connection between the 1 and 2 carbs (gas must pass between them as there's only one fuel filler line that serves all four carbs so there must be a pass through)?
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