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What is missing in this picture...

  • Thread starter Thread starter 79FiveFifty
  • Start date Start date
7

79FiveFifty

Guest
I noticed a port on 2 of my carburetors is just open, nothing is connected to it. There are 4 or 5 different hoses which hang from random places on my bike that could potentially be hooked up here - though I do not know what is what.

1979 GS550

does anybody know what is supposed to be hooked up to these ports in the photos?

Left side of bike

missing2.jpg


Right side of bike

missing1.jpg


any help greatly appreciated.
 
Don't know much about VM carbs, but on CV carbs there are connections in those spots for the float bowl overflows. The hoses just route underneath the bike, BUT like I said, know zero about VMs, never dealt with them.
 
79FiveFifty said:
I noticed a port on 2 of my carburetors is just open, nothing is connected to it. ... does anybody know what is supposed to be hooked up to these ports in the photos?
Click to expand...
Are they just open holes or are there nipples there to which you can attach a hose?



doctorgonzo said:
... but on CV carbs there are connections in those spots for the float bowl overflows.
Click to expand...
Actually, the CV carbs do not have "overflow" hoses. They are vent hoses and get routed up over the airbox.



azr said:
The important one is on carb #3 which is your vacuum port to your petcock. The float bowl overflows are under each carb, you'll see them easily.
Here's a description.
http://members.dslextreme.com/users/storagecliff/images/hose_locations.html
Click to expand...
True enough, the port for the vacuum to turn on the petcock is on carb #3 on the VM carbs (it's on #2 on the CV carbs), but that will be on the engine side of the carbs, not the airbox side.


79FiveFifty, the holes you are asking about are the vents for your carbs. Since you have a stock airbox, there should be hoses attached to the nipples there, and the hoses should run back, over the airbox and go through that loop on top of the airbox that currently has the two wires running through it. That merely holds the hoses in a still-air area to minimize turbulence.

.
 
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