Tubing identification info - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 16 (permalink) Old 07-17-2008, 09:12 PM Thread Starter
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Tubing identification info

I found a loose hanging hose/tube tonight on my bike, and couldn't see where it ought to be connected. Front cylinder, just left of the exhaust manifold, (sitting on the bike), one end is connected to the head, and it sticks out about 6-8" and sort of angles more towards the left, ending just behind the airbox. Looks like a 1/2 to 3/4" hose, very similar to what is connected to that air valve under the seat.

Is this enough info for anybody to fill me in? Where should it connect, does it matter that it's not connected? I'd guess it's been hanging like that as long as I've had the bike, and it runs fine with it as is, though there looks like a slight oil mist around it so I thought about plugging it to stop that.

TIA for any feedback.
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post #2 of 16 (permalink) Old 07-18-2008, 07:04 PM Thread Starter
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(Reminder bump)

Anybody?

Maybe look at your existing bike, and see where the hose is supposed to be? I don't see an open outlet that looks like it should be hosed, on my bike....
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post #3 of 16 (permalink) Old 07-18-2008, 07:18 PM
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Doug, I think this is the hose that goes from the front cyl up into the airbox. There should be a connecting point on the airbox where it slides it - it's vents the crankcase, so don't plug it up!!

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post #4 of 16 (permalink) Old 07-18-2008, 07:30 PM
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Have you got a pcture?

85 VN750 basketcase ( yes its a true 750, and no smog controls, its good to be Canadian)
It will have
a rebuilt 96 top end, rebuilt 85 bottom end
degoated, Eared
stripped, lowered, raked, bobbed,
reed valve boxes shaved
ported and polished
balanced
right side dump exhaust
heads and cylinders shaved for compression
looking for smoothbore sidedraft carbs
possibly fat bob tanks
modified vn800 or sportster drag pipes or I'll just make some

Chopperfix
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post #5 of 16 (permalink) Old 07-18-2008, 08:07 PM
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Quote:
Originally Posted by Crobins365 View Post
Doug, I think this is the hose that goes from the front cyl up into the airbox. There should be a connecting point on the airbox where it slides it - it's vents the crankcase, so don't plug it up!!
If it is the hose that Cindy thinks it is, what she means is don't plug the hose with a plug, but do plug it to the air box at the front of the engine.

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post #6 of 16 (permalink) Old 07-18-2008, 10:04 PM
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I believe the hose you are referring to is part number 92059 on the microfiche. It plugs into the airbox as shown.
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Jim W
93 VN 750 "Ursula"
Moved R/R 08Sep06
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post #7 of 16 (permalink) Old 07-19-2008, 06:35 AM Thread Starter
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That looks like it in that Microfiche picture, the shape and location. I thought maybe the airbox, but I didn't see a place to put it, I had my hand roaming around in there too trying to feel for something a hose should be on. Obviously I wasn't looking close enough, or something. Thanks for the help everybody.
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post #8 of 16 (permalink) Old 07-19-2008, 09:40 AM
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The hose you are referring to is the crabkcase vent,

Either run it to the airbox. Or for a bit of a custom touch, pick up a little chrome breather and run the hose to that.

85 VN750 basketcase ( yes its a true 750, and no smog controls, its good to be Canadian)
It will have
a rebuilt 96 top end, rebuilt 85 bottom end
degoated, Eared
stripped, lowered, raked, bobbed,
reed valve boxes shaved
ported and polished
balanced
right side dump exhaust
heads and cylinders shaved for compression
looking for smoothbore sidedraft carbs
possibly fat bob tanks
modified vn800 or sportster drag pipes or I'll just make some

Chopperfix
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post #9 of 16 (permalink) Old 07-19-2008, 01:16 PM Thread Starter
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I like that chrome breather idea Duck, I went out there looking again, and it connection point was hard to find, being right above the fan, and being kind of behind the hose, it was hard to find. I spent probably 15 minutes trying to get the hose back on it, (due to how close it is to the fan guard), before I gave up and went riding. So the breather will be easier, quicker, and look better.
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post #10 of 16 (permalink) Old 07-19-2008, 01:49 PM
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I'd mount it so that any liquids that may accumulate in the breather can run back into the engine. If the bike is running OK with out it connected go for it. I used a chrome automotive crankcase vent on mine.

85 VN750 basketcase ( yes its a true 750, and no smog controls, its good to be Canadian)
It will have
a rebuilt 96 top end, rebuilt 85 bottom end
degoated, Eared
stripped, lowered, raked, bobbed,
reed valve boxes shaved
ported and polished
balanced
right side dump exhaust
heads and cylinders shaved for compression
looking for smoothbore sidedraft carbs
possibly fat bob tanks
modified vn800 or sportster drag pipes or I'll just make some

Chopperfix
Duck's Garage
Duck is offline  
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