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Jim500
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« on: September 04, 2021, 10:34:02 AM » |
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Is that a vent on the bottom of the fuel tank??? Should it be plugged off? Thanks Jim
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Foozle
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« Reply #1 on: September 04, 2021, 10:41:26 AM » |
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Yes. No.
Seriously, though, it should be hooked to a long hose that runs behind the center cover (in front of the battery) and exits near the side stand. It has a plastic "T" in the center that prevents rainwater from being drawn upwards.
Terry
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Mooskee
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« Reply #2 on: September 04, 2021, 12:06:37 PM » |
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Here is a parts diagram pic of it. Parts 2, 28 & 29.  Free download of Service manual here: http://www.valkyrienorway.com/download.htmlDownload the service manual, and you can search "Fuel tank breather Tube." You will find 9 references and drawings showing routing. The Tee is hard to find in the manual, but as mentioned earlier it is critical to keep water from sucking into the tank when riding in the rain. Ride Safe |
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Jim500
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« Reply #3 on: September 04, 2021, 03:29:48 PM » |
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Thank You!! If it is plugged off will that cause fuel delivery problems?
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The emperor has no clothes
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« Reply #4 on: September 04, 2021, 03:30:41 PM » |
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Thank You!! If it is plugged off will that cause fuel delivery problems?
yes |
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Jim500
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« Reply #5 on: September 04, 2021, 04:11:04 PM » |
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I took the tank off to check the air filter and noticed nothing connected to it, so I plugged it and have what I think is a fuel delivery problem. This must be my problem.
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RonW
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« Reply #6 on: September 04, 2021, 04:13:21 PM » |
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As said, leave the T open. The end of the tubing gets clipped to the kickstand bracket. The clip is on the *front side* of the kickstand bracket. **** [edit] the vent tube gets routed like this.   |
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« Last Edit: September 05, 2021, 09:47:11 AM by RonW »
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2000 Valkyrie Tourer
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RonW
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« Reply #7 on: September 04, 2021, 04:15:06 PM » |
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I took the tank off to check the air filter and noticed nothing connected to it, so I plugged it and have what I think is a fuel delivery problem. This must be my problem.
what? |
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2000 Valkyrie Tourer
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Jim500
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« Reply #8 on: September 04, 2021, 04:20:17 PM » |
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Nothing was connected to the little nipple on the bottom of the tank. I put a vacuum cap on it and now it seems like I'm running out of gas. It starts sputtering and dies.
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RonW
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« Reply #9 on: September 04, 2021, 04:33:48 PM » |
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Jim, the vent tube serves also as an anti-vacuum thingie as much as it provides a path for pressurized gas to escape. As the gas level gets lower, the air space above the fuel level gets larger proportionally. That's vapor lock which won't allow fuel to leave the gas tank. The air space expanded above the fuel level is less than atmosphere pressure. Liquid can't leave the tank since it is now pushing against the greater atmosphere pressure outside the fuel tank.
It's like holding your finger on top end of a straw filled with water.
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« Last Edit: September 04, 2021, 04:53:30 PM by RonW »
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2000 Valkyrie Tourer
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Foozle
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« Reply #10 on: September 04, 2021, 04:47:29 PM » |
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Nothing was connected to the little nipple on the bottom of the tank. I put a vacuum cap on it and now it seems like I'm running out of gas. It starts sputtering and dies.
If you have two ignition keys, try starting and idling the bike with the gas cap cracked open. This will illustrate the importance of having the tank properly vented to allow a steady, unobstructed flow of fuel to the carbs. Obviously, you don't want to RIDE this way. Just reattach a new vent line and you should be good to go. It's a cheap and easy fix. |
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Jim500
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« Reply #11 on: September 04, 2021, 05:01:32 PM » |
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Thank you so much for all the info!!! I have work to do tomorrow!.  |
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Avanti
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« Reply #12 on: September 04, 2021, 09:46:18 PM » |
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If you need to remake the entire vent line, make sure you put the âTâ in the correct location so as to brake the siphon.
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Jim500
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« Reply #13 on: September 06, 2021, 03:35:01 AM » |
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All is good!!! That was my issue!! Thank You!! for the help.
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Bagger John - #3785
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« Reply #14 on: September 06, 2021, 08:11:23 AM » |
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I'm relatively close to your area. Should you need help (especially involving unobtanium Honda tools) PM me.
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