nc30 vacuum pipes

[j77drs]

hi
i wonder if someone could help me,

i recently took my carbs off and cleaned them, i have put back on and connected everything but i seem yo have a pipe over ??

this pipe is the one that comes from the top ofthe petrol tank ( vacuum pipe )

currently it goes from the top of the tank, into a 2 piece with 2 other pipes connected, where do they go ??

[CMSMJ1]

they go to the bottom of the bike and vent to atmosphere...

[j77drs]

thank you - both of them ?

Im assuming 1 each side ?

[Sligeach]

hi
i
this pipe is the one that comes from the top ofthe petrol tank ( vacuum pipe )

as in the one that has the threaded nipple on the top of the tank. just to avoid confusion thats not the vacuum, would be more appropriate to call it the breather pipe. thats just me being pedantic tho

[j77drs]

mymistake, the breather,

why does this split to create 2 seperate pipes ??

[alexwitham]

The tank breather goes into a 3 way T juntion on the left hand side of the bike. The inital hose from the tank into the junction is about 3ft long and has a 6mm internal diameter. The Junction has 2 other hoses attached, the one exiting from the top is another breather hose which exhales pressure, caused by the petrol fumes, from the tank into the atmosphere (i believe it exits close to the sidestand on that little bracket?)
I've no idea what the other hose is for, as i've never had to replace/remove it, however i would imagine its another breather of some sort giving its material and thickness.

Alex

[scotjell]

Well that answered my question so no need for me to post it. Thanks

[royster81]

mymistake, the breather,

why does this split to create 2 seperate pipes ??

so if one blocks the tank still gets air via the other pipe.