petcock

[saltykunk80]

i think i already know the answer to this question but anyway, building a cafe racer, took tank off to drain and fuel flow does not stop no matter what direction i turn the petcock, assuming i have a bad petcock, hooked everything back up, was leaking out one carb(had a float stuck) reaired that. But now am leaking very slowly out #2 carb, fuel running down float bowl and lower rail and drips onto starter cover. assumed had a bad float bowl gasket, replaced it but still leaking slowly. seems to come from front left corner of that #2 carb, its the damndest thing! rides fine and does not leak while running but i gotta carry a pair of vice grips to clamp off the fuel line everywhere i go as it seems the only way to make it not leak while sitting there. weird. replaced air box with individual filters not sure if this would throw something off.

[heathen]

Mine was doing the same thing and i put a new petcock on and have had no problems with this in about a year.

[psyguy]

definitely a bad petcock but also a float valve problem. the float valve should hold the gas (at least for a while) even when the petcock is broken

[saltykunk80]

yeah just rode and noticing fuel running down float bowl covers on 2 center carbs, may remove seat and loosen tank to see in there better and figure out where exactly coming from, but yeah, i can unclamp my fuel line and it takes about 3-5 minutes before the fuel starts collecting and drips from the float bowls

[rphillips]

Like he said. If either were working properly, it shouldn,t leak. Just my opinion