carb hoses? - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
Carbs and Fuel System
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post #1 of 11 (permalink) Old 04-29-2009, 02:07 PM Thread Starter
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carb hoses?

I bought a bike a week ago with the carb in a hundred pieces in a box. I though about putting it back together, but for the price of all the new parts I would need, I just bought a new one on ebay. New to me anyways. Long story short, I'm missing a boot and all the hoses. Can y'all help me figure out where they go while I wait for my new carb to get here? There are six hoses in all, four along the center of the carb and two on the outside of it. The outer two lines along the center, connected to the float bowl by black fittings are fuel lines right? I assume they connect to the petcock, but does it matter in which order they connect? Do I need a t fitting for them, maybe? Also, I'm considering an in-line fuel filer, is that a good idea?

Adjacent to the fuel lines are lines I'm not familiar with, but they do have hoses connected to a t, which connects to a black plastic thing. What do they do and where does that thing connect to? It looks like there's some clear epoxy on the line there, is that ok?

I'm pretty sure the lines on the outside are vacuum lines. Where do they connect? Should all these hoses have those little wire hose clamps all over them? The diagrams seem to think so, but there aren't clamps on the t fitting or the little plastic thing. Would regular screw down style clamps work here?

Also, my new carb isn't coming with hoses either, what type of hose should I get from autozone or wherever? BTW, cheap but functional is better than showy but functional, in my book. This is a learner bike anyway, and it's already got a bit of road rash and rust and pretty hoses are just going to lighten my wallet.
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post #2 of 11 (permalink) Old 04-29-2009, 02:14 PM
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I can't answer your questions directly, as I'm pretty newb myself. But I would say this, while you're in there dinking with the carbs (swapping them out) I would consider an earshave. It will make getting the carbs in and out in the future a whole lot easier AND give you a good boost in performance.

A friend of mine who is good with bikes just helped me do mine, and I love it. Just a thought since you're in there anyway... taking the carbs off this bike is such a pain you might as well consider it. If it seems too daunting for you at this juncture, then just file it away for future reference.
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post #3 of 11 (permalink) Old 04-29-2009, 03:52 PM Thread Starter
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Well, frankly, I'm cheap. Doing an ear shave is gonna cost me a dang fortune and what I'm really concerned with is getting the thing running. I can worry about going faster when I'm confident with just going, you know?
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post #4 of 11 (permalink) Old 04-29-2009, 06:24 PM
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Fuel lines go to petcock, any order.

The two middle lines with the tee are vents for the bowls, it goes into the hole on the backside of the right air filter housng.

Left carb vacuum goes to the backside of the petcock.

Right vacuum goes to the air valve under the seat in front of battery box.


85 VN700 "Old Yella"

REBUILT ENGINE
CUSTOM PAINT
VANCE & HINES CRUZERS
EAR SHAVED AND RE-JETTED W/K&N'S
DUNLOP ELITE K591 FRONT & REAR
VOLTMETER
SYNTHETIC BRAKE FLUID
SYNTHETIC OIL & GEAR LUBE
PLEXISTAR 2 WINDSHIELD
SPLINES LUBED
ACCT'S GREASED W/TOC SPRINGS
COASTERD
LEATHER SADDLE BAGS
LEATHER TOOL AND ROLL BAG
PICKUP COILS GAPPED AT .018"
NGK CAP, WIRES, IRIDUMS
BARNETT FRICTION PLATES & SPRINGS
CUSTOM GRIPS, MIRRORS, LEVERS
ORIGINAL STATOR & R/R 14.5v
DEKA MF AGM ETX15L

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post #5 of 11 (permalink) Old 04-29-2009, 06:34 PM
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the two lines that go into the float chambers are the fuel lines ,the petcock on the tank has two outlets one goes to each side.get automotive fuel or vapor hose in the correct size for the fuel and vacuum lines at any automotive chain,the vacuum ports on the outside of the carbs go to the small barb on the petcock and the vacuum operated diaphram valve that controls the fresh air system the two big lines on that valve go to the cylinder heads,and the two other big lines on the carb ,now I am going from memory here, connect with a tee and then the one big hose goes into a hole in the back of the right air cleaner housing.That is the best I can remember I threw that crap off mine and bought the K&N's and rejetted,what tubes are you asking about the ones that go from the carbs to that big old black air box ,or from the carbs to the cylinders?




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92 vn750(sold)
Current ride 05 1500 Classic FI
lovin' the new scoot



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post #6 of 11 (permalink) Old 04-29-2009, 06:36 PM
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Quote:
Originally Posted by lance328 View Post
Fuel lines go to petcock, any order.

The two middle lines with the tee are vents for the bowls, it goes into the hole on the backside of the right air filter housng.

Left carb vacuum goes to the backside of the petcock.

Right vacuum goes to the air valve under the seat in front of battery box.
a man of few words and he gets his point across,one thing we both left out get a manual if you don't have one.




If you see it on my bike I did it
VROC#30324
92 vn750(sold)
Current ride 05 1500 Classic FI
lovin' the new scoot



Quote:
"When all is said and done,usually more is said than done" UNK
Click on one x and drag to the other to read between them.

Psalm 40:1...
XI waited patiently for the Lord; and he turned unto me, and heard my cry. X
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post #7 of 11 (permalink) Old 04-29-2009, 06:47 PM Thread Starter
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a man of few words and he gets his point across,one thing we both left out get a manual if you don't have one.
Thanks guys! What about the clamps?
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post #8 of 11 (permalink) Old 04-29-2009, 07:00 PM
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Quote:
Originally Posted by supasamurai View Post
Thanks guys! What about the clamps?
Use small zip ties, their cheap.


85 VN700 "Old Yella"

REBUILT ENGINE
CUSTOM PAINT
VANCE & HINES CRUZERS
EAR SHAVED AND RE-JETTED W/K&N'S
DUNLOP ELITE K591 FRONT & REAR
VOLTMETER
SYNTHETIC BRAKE FLUID
SYNTHETIC OIL & GEAR LUBE
PLEXISTAR 2 WINDSHIELD
SPLINES LUBED
ACCT'S GREASED W/TOC SPRINGS
COASTERD
LEATHER SADDLE BAGS
LEATHER TOOL AND ROLL BAG
PICKUP COILS GAPPED AT .018"
NGK CAP, WIRES, IRIDUMS
BARNETT FRICTION PLATES & SPRINGS
CUSTOM GRIPS, MIRRORS, LEVERS
ORIGINAL STATOR & R/R 14.5v
DEKA MF AGM ETX15L

Best Auto/Moto Insurance | Motorcycle Protection Today | FREE Trade-In Quote
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post #9 of 11 (permalink) Old 04-29-2009, 08:40 PM Thread Starter
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Quote:
Originally Posted by lance328 View Post
The two middle lines with the tee are vents for the bowls, it goes into the hole on the backside of the right air filter housng.
Ok, I'm looking at the bottom of my gas tank right now. The black plastic square I'm looking at attaches to the bottom of the tank. It's called the "fuel gauge cover" part # 14090-1624. Thats totally not the back of the right air filter housing. I don't even see where they would go of they do connect there. What's up with that?
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post #10 of 11 (permalink) Old 04-29-2009, 09:44 PM
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Quote:
Originally Posted by supasamurai View Post
Ok, I'm looking at the bottom of my gas tank right now. The black plastic square I'm looking at attaches to the bottom of the tank. It's called the "fuel gauge cover" part # 14090-1624. Thats totally not the back of the right air filter housing. I don't even see where they would go of they do connect there. What's up with that?
You can connect it to that cover, that is where the older models use to connect.


85 VN700 "Old Yella"

REBUILT ENGINE
CUSTOM PAINT
VANCE & HINES CRUZERS
EAR SHAVED AND RE-JETTED W/K&N'S
DUNLOP ELITE K591 FRONT & REAR
VOLTMETER
SYNTHETIC BRAKE FLUID
SYNTHETIC OIL & GEAR LUBE
PLEXISTAR 2 WINDSHIELD
SPLINES LUBED
ACCT'S GREASED W/TOC SPRINGS
COASTERD
LEATHER SADDLE BAGS
LEATHER TOOL AND ROLL BAG
PICKUP COILS GAPPED AT .018"
NGK CAP, WIRES, IRIDUMS
BARNETT FRICTION PLATES & SPRINGS
CUSTOM GRIPS, MIRRORS, LEVERS
ORIGINAL STATOR & R/R 14.5v
DEKA MF AGM ETX15L

Best Auto/Moto Insurance | Motorcycle Protection Today | FREE Trade-In Quote
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