1991 Honda CB 250 Nighthawk Logo
Posted on Apr 03, 2009
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Leaky carb just got carb fixed 2 days ago and still does the same thing it leask gas out of the carb when i turn off the motor of if it stalls out please help!!!! me

1 Answer

tombones

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  • Master 3,567 Answers
  • Posted on Apr 03, 2009
tombones
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Joined: Mar 11, 2009
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Here's the deal. The only way gas can be leaking out the carb is because of a float problem. Only six things can create the problem.

  • Gas is getting into the float and is stopping it from actually floating.
  • The rebuiler forgot to put the float needle back into the carb.
  • the rebuilder bent the float level adjustment tang far enough out of range that the needle valve can't close.
  • Many floats have a needle retainer clip that actually holds the needle loosely to the adjusting tang. If the clip was lost the needle can jam at an angle and not be able to close.
  • The rebuilder left out the float mounting pin or the pin is bent or not installed correctly. The float must be loose on the pin once the assembly is in place.
  • The rebuilder left out the float mechanism entirely. This is not very likely.
It might be possible that the mainjet or mainjet 'O' ring was left out and that might cause the problem. I have never seen this before but I just want to cover all, ( even remote ), possibilities.

You paid for the rebuild so I would take the carb back to the rebuilder. You might want to call a Honda dealer's parts department and ask if the parts diagram for the carb shows a float needle retainer clip. Also ask the cost of a " carb kit " Now. if the rebuilder says there is no clip on that carb, you can argue the point.

I wish I could be there with you. Get your money back for the "rebuild" ( less the cost of the carb kit ), and have the dealership fix it. I really want to know what you find out on this problem. Please post a comment on the results.

Please rate this answer after the problem is found. Thanks Chris.

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