Battery Breather Tube or Snake? - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 11 (permalink) Old 03-10-2009, 09:30 PM Thread Starter
 
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Battery Breather Tube or Snake?

Hey Y'all --

As I got on the bike today I noticed a rubber tube/hose laying on the floor underneath the bike right below the location of the battery. At first I thought it was a small snake--- The hose is about a foot long, 1/2" diameter, 1/4 inside diameter, curved on one end with a clamp holding a broken off white plastic piece.

I could't find a corresponding photo in the Clymers or the OEM parts sites; however, I'm thinking (hoping) it's probably the battery breather tube like I've seen on my previous bikes. I degoated just a few days ago and this may have caused it to fall out. I'll have to look closer, but I think there may be another one in there?

Does this sound like the battery breather tube? If so, I probably don't need the tube anymore since I have a MF battery--right?

Thanx!
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post #2 of 11 (permalink) Old 03-10-2009, 09:38 PM
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Sounds like the most probable explanation. The tube probably fell off because it wasn't connected to the battery anymore, since you have a maintenance free one now. But there are other tubes on the bike, and some others on this site might be more familiar with that broken-off plastic piece on the end.

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post #3 of 11 (permalink) Old 03-10-2009, 09:55 PM
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I switched to a mf battery but dont remember a plastic thing attached to it. take a pic of it and post it here and we could probably tell you exactly what it is!

1986 vn 750 aka "Huck Farley"
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Rick's stator and rr
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post #4 of 11 (permalink) Old 03-10-2009, 10:01 PM
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Most battery vent tubes are clear vinyl, it sounds like your coolant tank over flow hose broke off.


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Last edited by lance328; 04-10-2009 at 09:10 AM.
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post #5 of 11 (permalink) Old 03-10-2009, 10:19 PM
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Quote:
Originally Posted by lance328 View Post
Most battery vent tubes are clear vinyl, it sounds like your coolant tank over flow hose broke off.
X2
Also, the battery vent tube (if you still had a wet cell) besides being clear, aren't anywhere near 1/2"dia.


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post #6 of 11 (permalink) Old 03-11-2009, 12:26 AM
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If your overflow nipple broke, I have the bottle off my 96 still. That's the only thing that has a white plastic nipple...

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post #7 of 11 (permalink) Old 03-11-2009, 02:01 PM
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I agree with the others. Most wet cell batteries have colored plastis tops and vent spouts. White plastic nipple=overflow bottle.

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post #8 of 11 (permalink) Old 03-11-2009, 02:15 PM
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The nipple on my battery is black. You don`t mention the color of the tube, except to say it looks like rubber, which is often black. If it is a black hose, a 1/2 inch in diameter, with the white nipple in it, I concur that it is most likely off the coolant overflow tank.

Gordon

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post #9 of 11 (permalink) Old 03-11-2009, 09:32 PM
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Did you find where the hose came from?


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 #10 of 11 (permalink) Old 03-11-2009, 09:48 PM Thread Starter
 
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Quote:
Originally Posted by lance328 View Post
Did you find where the hose came from?
Hi Lance --

Yep, you folks were right again! It's the black rubber coolant overflow hose. I saw it in a diagram in the Clymers and then went outside to the bike and found the corresponding broken white plastic piece on top of the coolant tank.

I foolishly entertained the idea of repairing it --- NOT!! When I gently tried to remove the broken white plastic piece from the hose, the plastic disintegrated in my fingers. I was wondering what caused it to break. But I guess that's to be expected with a 15 year-old bike, especially with all the heat generated near the exhaust.
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