79 GS850 VM Carb Vacuum Pipes

[Rain Man]

Hiya,

I have just done a complete Carb clean & have noticed that i have 3 vacuum hoses, only carb3 vacuum tube was connected to the fuel taps vacuum port, so shouldnt carb 2 & carb 4 vacuum ports be capped ??

Thank you,

Rain Man.

[Agemax]

the other 2 are vent pipes, not vacuum pipes. they should route to your air box or remove them if you are running pod filters. do not blank them off

[Rain Man]

the other 2 are vent pipes, not vacuum pipes. they should route to your air box or remove them if you are running pod filters. do not blank them off

Oh, i assumed that because they were in the same place as on carb 3 that they were also vacuum pipes.

Thank you for clearing up the confusion

Rain Man.

[Steve]

Please note that when he said "route them to your airbox", he was not meaning that you connect them to anything.

Not sure how they are supposed to run on your bike, but on later 850s, they are long enough to go over the airbox and hang down the back side, with their ends in basically still, calm air. The ends need to be in a non-turbulent area for the carbs to receive a proper atmospheric reference.

.

[Agemax]

Please note that when he said "route them to your airbox", he was not meaning that you connect them to anything.

Not sure how they are supposed to run on your bike, but on later 850s, they are long enough to go over the airbox and hang down the back side, with their ends in basically still, calm air. The ends need to be in a non-turbulent area for the carbs to receive a proper atmospheric reference.

.

yeah sorry, thats what i meant. route them back towards your airbox, not into it!

[Rain Man]

Ok, Thank you Guys, much appreciated