Shorty Gas Tank Vent Valve 2010 450 Issue?

I purchased a short gas hose and tank vent valve from my local shop, mod quad brand, and put it on my 2010 450. After a few quick laps gas was coming out from the bottom of the hose where it ties into the tank cap. I thought that it could be a bad vent valve but I gave it to my brother and he tried it on his 2010 KXF250 and it works fine, in fact he kept it. Has anyone had this issue with an aftermarket vent valve on the 2010 450? I thought that there might be additional pressure in the tank because it is Fuel Injected and could be contributing to this problem but I am not sure. Has anyone had success with a certain brand of vent valves that may be better than the one I bought? I would like to have one because I don’t like the long hose and the mess it leaves on the back of the front fender. Thanks..

Edited by Troutman

Mine came of my 250f and has been just fine. Sounds like yours just didn't fit thaty well?

i had the same thing happen to me on my 2010 so i switch back to stock

Mine came of my 250f and has been just fine. Sounds like yours just didn't fit thaty well?

What brand is working for you?

I found the hose supplied with some aftermarket short vents was a lot harder than the stock hose and didn't provide as equal sealing capability as the softer stock hose.

I cut the equal length off my stock hose and pushed the breather into that and threw away the hose supplied with the breather kit.

Had no problems on my 2010 YZ450F.

garage.php?do=viewattachment&attachmentid=82442

I found the hose supplied with some aftermarket short vents was a lot harder than the stock hose and didn't provide as equal sealing capability as the softer stock hose.

I cut the equal length off my stock hose and pushed the breather into that and threw away the hose supplied with the breather kit.

Had no problems on my 2010 YZ450F.

garage.php?do=viewattachment&attachmentid=82442

Funny that you suggested that because I thought the same thing and cut about 3 inches from the stock hose and tried it that way. Needless to say it did the same thing leaking all over. So it seems to me that the problem is in my brand of valve. What brand valve are you running? I can't quite make it out from your pic. Thanks.

RHK is the breather on mine.

Thanks I will give it a try.

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