Unidentified lines on tank - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 3 (permalink) Old 06-18-2007, 04:56 PM Thread Starter
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Unidentified lines on tank

Greetings...now that I finally have the owner's manual and service manual for my '05 VN750, I've started doing some of the more detailed inspections on the bike.

I took the seat off to look at the battery and connections. They look fine, although the rectifier is, in fact, hiding under the battery frame and will have to be moved...looks like a lot of work.

I noticed that on my bike, there are two rubber lines which are attached to brazed feed lines at the very back end of the fuel tank. The left line is marked with a blue dot and the right with a red dot. The red dot line is cracked and broken...I followed it as far as I could and saw that it went down behind the swingarm pivot, then I lost it. Neither of these lines appear to feed directly into the carburetors or other parts of the fuel system, so I'm thinking that these are the vapor recovery lines leading to the absorption canister. Does that sound right? The bike's running well, but if necessary, I'll change these out with new hose...

Anyone have any ideas?

Bob
VROC #24344

2005 VN750
PF3
CorTech bags
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post #2 of 3 (permalink) Old 06-18-2007, 08:19 PM
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There should be one line on the left side that is hooked up directly to the fuel tank - there's a little metal hose that comes off the tank, then the hose connects to that via a clip. I think that's just a vapor release line. The one with the red dot, though...? Is it actually connected to the tank?? I'm guessing that it's a radiator hose (since it ends down by the swingarm). Is it a fairly thin hose? About the size of the fuel hoses?

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post #3 of 3 (permalink) Old 06-18-2007, 10:48 PM
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you have a california tank (bike?). The one is the vent tube which goes below the swingarm. If you fill your tank real full, then set it on the sidestand, you may end up with a wetspot from there. The other line is for some emissions vapor recovery system.

Deuce (Loran Naperville IL)
1995 VN750 (Black w/ 2004 tins - no teal)
2003 VN750
Both have: - F&S Bags & brackets
- Corbin seat w backrest
- Progressive suspension.
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2 1983 V65 Magnas
2 1985 V65 Mangas (1 which is in many parts)
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