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Breather/Vac Lines Off Tank Help


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in the process of doing the plugs and air filter, having taken the tank off (98 carb) i have got a small bore Y shaped hose that goes onto the tank and then goes under the bike, but i still have one part of this Y pipe that doen't seem to connect to anything, any ideas??? is it simply a breather for the tank/overflow??

Oh and the plugs are easy to do with tank off, the original honda plug tool, 1/4 sq drive 10mm socket.

thanks

iain

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On mine there's the vacuum tube from the cylinder head to BACK of the petcock The fat tube is the overflow and just hangs down, and there's a smaller (same size as the vacuum tube) that also just hangs down from the tank.

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On mine there's the vacuum tube from the cylinder head to BACK of the petcock The fat tube is the overflow and just hangs down, and there's a smaller (same size as the vacuum tube) that also just hangs down from the tank.

If by "BACK" you mean front, you're right on Brett. :icon_stickpoke:

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On mine there's the vacuum tube from the cylinder head to BACK of the petcock The fat tube is the overflow and just hangs down, and there's a smaller (same size as the vacuum tube) that also just hangs down from the tank.

If by "BACK" you mean front, you're right on Brett. :icon_stickpoke:

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Damn busted :icon_doh:

How's this... don't hook the vacuum line to the port coming out of the bottom of the petcock :icon_lol:

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Thanks so i guess the other part of y tube is simply a breather

iain

I have the tank off my 97'. I have a tee connector on the vacum line but it is/was for the scott oiler(which I am removing) there are no other 'T' or 'y' connections.......... as per the diagram .

good luck with it.

mack

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Having now checked this out further, it seems my Y pipe is absolutely right however there is no answer as to Y it's like this, thanks guys for the help

iain

maybe breathing is different in england?......

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  • 2 months later...
Having now checked this out further, it seems my Y pipe is absolutely right however there is no answer as to Y it's like this, thanks guys for the help

iain

On the pics on US models the bottom tap it says nothing, but the T on the breather on

European models goes to the tap on the bottom of the petcock.

post-2671-1174168197.jpg

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  • 13 years later...

And, even if everything's connected properly gas will only flow while you're cranking so it'll take a moment to re-fill the carbs, if they sat long enough to dry out.

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...vacuum line pulls and opens the petcock if everything is connected correctly, right?

 

....great zombie thread revival BTW

:)

 

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