New Owner of 750 - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
Carbs and Fuel System
From the gas tank to the carbs
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post #1 of 4 (permalink) Old 03-26-2010, 12:12 AM Thread Starter
Tero 2010
Join Date: Mar 2010
Location: Central Coast California
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New Owner of 750

Hello. I was looking my 750 over and spotted a fuel line resting on the rear cyclinder head. It shows signs of being burned in two places. What I want to do is replace this line but I need to learn how to remove the seat and whatever to get to this fuel line. The line I am referring to is on the right side of the bike when sitting on it. Is there a diagram of the fuel lines I can access? Thanks
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post #2 of 4 (permalink) Old 03-26-2010, 01:42 AM
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Welcome to the Vulcan Madness tero.

To remove the seat, unlock the toolbox at the back of the seat, look inside and you will see two, 10 mm bolt heads to screw out of the back of the seat. Then pull the seat back and up a couple of inches to get a little tab from under the seat, and it is off.

Free Downloadable VN700/750 service manual:

There are exploded diagrams and part number lists included in the manual.
My computer is slower than the proverbial molasses in January tonight, or I would put up a specific link for you.

Many online mc vendors have exploded line drawing diagrams with part numbers too.

Here is a link to a photo and diagram:

Not the greatest for what you want, but a start. Someone else will show up with a better one I am sure.


1991 VN 750 -"Cosmic Lady" or "Bad Girl"?
Purchased May 16, 2008
Approx.19,300km (12,000 miles)

H-D windshield
Relocated R/R
MF-AGM battery
Fiamm Freeway Blaster horns
F&S luggage rack and engine guard
Kury Offset Hiway pegs
July 13, 2016, Riding on the DARKSIDE now, Classic Radial 165/80-15


Last edited by OlHossCanada; 03-26-2010 at 01:52 AM.
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post #3 of 4 (permalink) Old 03-26-2010, 11:27 AM
1992 VN 750
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Can you attach a picture of the line to which you are referring? I think it may be the vacuum line that comes off the cylinder and then goes back up to a useless air regulator under the seat that ties the air system together. I took mine off completely when I coastered and plugged the vacuum port and it made no difference and is merely a part of the emissions system if I recall. I think the fuel lines come off the petcock and cross each other and then go to the carbs prior to the point where you would see them from the right side of the engine. I am thinking it is the vacuum line that has burned on the cylinder...

I replaced my vacuum line initially and then did away with all the CA emissions stuff shortly thereafter!

1992 VN 750 / 18,100 miles
V and H Cruzers
Earshaved and sheared
110/90 and 170/80 Metzeler 880s
AGM Battery
TPE Stator
Clear Alternatives LED brakelight
Saddleman Explorer Seat
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Iridium plugs

Last edited by bordolover; 03-26-2010 at 11:35 AM.
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post #4 of 4 (permalink) Old 03-26-2010, 11:44 AM
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Welcome to the group, as you can see there is a wealth of info here. Congrats on teh new bike and enjoy.

Chad Falstad "Hawk"
Vroc #17649
2011 HD Ultra Classic "angel"
2001 Nomad 1500 Sold March 2012
2001 VN 750 "Sold June with 2008 with 21,000""Serinity"
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