interesting carb question, help needed!

[Dues_Ex_Machina]

ok im getting a little annoyed at these carbs. in the float bowl, i thought most / all bikes had rubber bits over the needle under the piece of petal attached to the floats. so it seals easy.

neither of mine have that, its just a tiny little metal tube....

its for my 1986 GSX250e by the way.

[Dues_Ex_Machina]

i could really appreciate some help guys. i took some pictures after i checked the tightness on the float covers and hoseclamped the vacuum line on so i can test start it.

i tested the petcock and it is working

when i blow through this vacuum line *blue arrow* it shoots fuel out of where the red arrow is pointing on the carb... why doesnt it do this on the other carb and should it?

i checked the slides and they are free and not sticking.

and i am going to reattach and tighten everything closed including the airbox since i noticed that many GS models are extremely sensitive to this.


also can anyone tell me what this does?



time to go charge the battery and try to start this thing again.

[GLDIVER]

The vacuum hose you are blowing into operates the fuel petcock. It is only connected to one carb as it only needs a small vacuum to open the fuel petcock.

I believe the second photo is just a drain connection. There in case the fuel gauge sender leaks. It would not be good for it to drip on a hot engine.

[Dues_Ex_Machina]

ok thanks very much