carb help

[jrcody1127]

does anyone know what the rubber hose is for at the top of the #6 carb and it runs down to the carb frame at the rear of the motor and it is just open, hanging kike a carb bowel drain. it is about 3/8". i have agas leak at  the #6 and #4 carb. thought it was the carb bowels, put new gaskets and still leaking. maybe the fuel line or rail.?
thanks

[salty1]

It's probably one of the two overflow lines on each carb bank. If it's leaking fuel, you might have a stuck float.    Has the bike been stored awhile?

[98valk]

carb bowl vent line. the other bank has one also.

[Thunderbolt]

What they said, it is probably the overflow line from that side.  If gasoline is coming out there, you have a float stuck.  You might be able to tap the bowls with a screwdriver plastic end a few times and dislodge it.  Otherwise you will probably have to remove the carb bank to correct it.  I usually hook up an external tank to the carb bank before I install it to check for that type of problem.