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Old 01-11-2009, 09:51 PM   #1
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Old 01-11-2009, 09:56 PM   #2
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Quote:
Originally Posted by MudBug View Post
Got home from the ride today and noticed a gas leak, again. Its my vent line. I just replaced the old gas tank cause of the vent line leaking gas. WTF is causing this? I am thinking about getting a smaller line to run inside this vent line and JB welding the ends together to stop the leak. Do y'all think this will work?

And before anybody says it I am glad I did not buy a (Kawasaki). And buying a new bike is not an option right now.
Im sorry to hear about ur problem good luck getting it fix
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Old 01-11-2009, 09:57 PM   #3
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Old 01-11-2009, 10:04 PM   #4
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With our race bikes, we often close the vents, but we also use a top vent for the dry brake tanks, and the stockers vent through the cap.

To be sure, I'd give 'ol Patrick a call on Tuesday to see what his thoughts are. I'd be a dollar to a donut hole that he'd have the solution

If it were mine, I'd take the old tank and close the vent on it, ride a tankfull, and see what happens.
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Old 01-11-2009, 10:27 PM   #5
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Old 01-11-2009, 10:37 PM   #6
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hey mud bug check this shyt out ... http://www.borderlinecustomcycle.com/MY927.htm .. i know its not on topic but its a sweet custom zx7
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Old 01-11-2009, 10:38 PM   #7
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Quote:
Originally Posted by MudBug View Post
when you cap the vent line and ride the fumes push up through the cap and seepage runs down the outside of the tank and all over me and then burns my thighs and man berries. Not fun, did that with my last tank.

But I was thinking about a top vent similar to a dirt bike or something.
That's what I'm saying though, we completely remove the vent inside the tank. It's completely sealed and then we add a vent to a one-way vent valve and run the line in to the lower fairing.

I'm not 100% familiar with how the vent comes out of the tank on top of your bike, but maybe there's a chance you could fix some sort of vent tube from it in a similar manner...
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Old 01-12-2009, 08:34 AM   #8
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Old 01-12-2009, 09:46 AM   #9
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The problem with just "sealing up the old vent" is the chance of vapor lock as well as seapage as you mentioned. I'll give you a 1/3 of what you paid for the bike to get it off your hands. I prefer you sand off that green Krylon though and get it back to it's original paint scheme.

FWIW...I think JB Welding some smaller (or even larger, this way you know you aren't restricting the vent line in any way) diameter tube to the old "nipple" would work just fine, but I would check with someone who is familiar with this first.
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Old 01-12-2009, 10:54 AM   #10
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I have an idea, but I dont know how the set up is inside the tank.

Does the line go through the tank to the top? Or does the tank have a second chamber that the vent hose nipple goes into first?

What im suggesting is to plug the current vent hose and drill/thread/install a gas nipple into the bottom of the tank to create and use a completely new vent. But this would only work if this hose on the inside doesnt go straight through to the vent nipple currently leaking.

Otherwise, normally a repair would be on the outside not inside of a hose, so flow isn't restricted in any way, as Dbuck mentioned.
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Old 01-12-2009, 12:46 PM   #11
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Old 01-12-2009, 01:00 PM   #12
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Since you have the extra tank, remove the pump, seal it in a plastic bag and allow the tank to vent.... no one wants to play w sparks around a tank w fumes.

Side note: your gear may smell a little more 'gasey' if you use a vent cap.

Unless you plan to use an autocross cap and run the vapor line down the triple or something.
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Old 01-12-2009, 01:31 PM   #13
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Old 01-12-2009, 02:07 PM   #14
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bingo.

but it needs to have the seal for the tank and thread pitch adaptation.
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Old 01-12-2009, 02:24 PM   #15
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Old 01-12-2009, 11:52 PM   #16
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