EVO All Evo Model Discussion

Gas Leak

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Old Sep 8, 2013 | 08:26 PM
  #11  
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Junk in the float valve (needle and seat). Also check to make sure the overflow tube isn't cracked. A long shot I know, but it happened to a vintage Jap bike I had. One of the carbs drained even after numerous rebuilds. Frustrated the heck out of me. Then someone that runs a bike graveyard said to check the tube. Sure enough, it was cracked from top to bottom. Good news was that it's brass, so it was easy to fix with a little solder.
 
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Old Sep 8, 2013 | 10:20 PM
  #12  
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to check the pet **** pull the gas line off ,& make sure you have the valve shut off if it leaks from there , about $25 from HD for new fuel valve aka pet ****
 
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Old Sep 10, 2013 | 12:48 AM
  #13  
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So I took the fuel valve apart after we drained the gas tank and I am sure hoping I found the reason fuel was still getting to the carb even when it was turned off. The three hole gasket that goes in the petcock was pretty tore up and I do not think it was creating a seal. So a new one is on its way and we shall see if that does it. Thanks for all the feedback guys
 
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Old Sep 10, 2013 | 12:58 AM
  #14  
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Originally Posted by Po2387
So I took the fuel valve apart after we drained the gas tank and I am sure hoping I found the reason fuel was still getting to the carb even when it was turned off. The three hole gasket that goes in the petcock was pretty tore up and I do not think it was creating a seal. So a new one is on its way and we shall see if that does it. Thanks for all the feedback guys

Carby still shouldn't leak even if the gas is still flowing so it would be a good idea to double check the needle seat and float height.
 
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Old Sep 10, 2013 | 10:36 PM
  #15  
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Originally Posted by Spanners39
Carby still shouldn't leak even if the gas is still flowing so it would be a good idea to double check the needle seat and float height.
Ditto. I never turn my petcock off.
 
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Old Sep 11, 2013 | 08:12 PM
  #16  
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Default fuel leak

Originally Posted by Spanners39
Carby still shouldn't leak even if the gas is still flowing so it would be a good idea to double check the needle seat and float height.
Ditto Spanners .,

1) rebuild the worn fuel tank valve you have described .
2) recheck the float to ensure it is actually installed upside down ???
3) rebuild the carb. with a rebuild kit that includes a new fuel inlet pintle valve or replacement seal for this valve and also a replacement throttle pump diaphram. Purchase a complete rebuild kit to ensure all of the above are included and not sold seperately. See CV carb. kits .
4) replace the overflow hose shown in your pic. as they will crack over time and leak onto your motor .
If you need help , we are here .
 
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Old Sep 12, 2013 | 07:51 PM
  #17  
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Thank you for all the help so far I will get started on the checklist until I get this shi* figured out. Chances are I will be back for more help too
 
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Old Sep 14, 2013 | 01:54 PM
  #18  
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Well I put it all back together with a new gasket in the fuel valve and not one leak. I am still going to do the rebuild kit on the carb just so I know its all new, when it comes in the mail. Thanks again guys ride safe
 
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