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ZR-7S Fuel leaking from top of tank

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  #1  
Old 01-22-2009, 01:20 PM
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Default ZR-7S Fuel leaking from top of tank

Any advice would be apriciated. I have an 01 ZR-7S, with a problem with fuel
coming out of the sides of the filler cap. I don't have any restrictions in the
evap system, and i removed the filler and flange and everything looks fine. The weird thing is that it leaks when it is parked upright and running. the fuel isn't sloshing or anything. It will continue to blow out even after the bike is off. untill all the vapors settle in the tank. any suggestions???
Thanks
Kyle.

feel free to send me an e-mail or just replay to the thread
 
  #2  
Old 01-22-2009, 01:46 PM
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is there a gasket missing?
 
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Old 01-22-2009, 04:38 PM
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is it standing up straight?
 
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Old 01-23-2009, 02:54 AM
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yes the bike is sitting up straight and the tank is only half full. not moving just parked and idling.
 
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Old 01-23-2009, 03:57 PM
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wiiiiieeeeeeerrrdddddd......lol.....Sounds like the vent tube is plugged up, capped off, etc.
 
  #6  
Old 01-23-2009, 06:28 PM
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The vent tube isn't plugged. I've removed the whole tank and blew through the tubes. no restrictions. I even flipped it over with fuel in it and it didn't leak out of the cap.
 
  #7  
Old 01-24-2009, 02:13 AM
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The tank is definately not venting right.....If the vent is not plugged, is the right hose connected to the vent line on the tank?
 
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Old 01-24-2009, 12:01 PM
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Yeah, everything is hooked up like it should be. The vent is on the bottom rh corner under the tank. so I am not sure exactly how it works? I have a parts schematic and it appears that the vent tube is attached to where the fuel sender also goes in the tank.
I know cars bikes are still reletively new to me.
 
  #9  
Old 01-27-2009, 06:05 AM
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could be some residual gas from a top-off..

might be enough pressure to drive out something stuck in the cap.. tho, it's odd that it wouldn't have evaporated at this point.

good luck and welcome to KF!
 
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Old 01-30-2009, 04:48 PM
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Just in case anybody is curious, i found out a little more on how the vent system works. The rubber tube at the bottom of the tank supposably runs through a metal tube through the middle of the tank. so if that tube is blocked or damaged then it may be venting the gas back into the tank and never actually exiting the tank. I haven't had a chance to look into it, but it sounds believable enough.LOL. Thanks for all the input from everyone.

Kyle
 


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