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Accelerator pump leaking

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I have changed out my accelerator pump on my 05 250f a few time now, and now it wont seal, gas just leaks out. There is no seal for it, so im assuming that the metal is supposed to just seal together between the accelerator pump and the carburetor. Has anyone else had this problem? If so any suggestions on a fix. Any help would be greatly appreciated. Thanks all.

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I have read of others having this problem after they re-install the ap. I believe there is an o-ring that is easily misplaced during tear down and re-assembly. You can also do a search on the forum for the same problem.

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There are 2 o-rings that seal the inlet and outlet for the AP cover as well as the diaphragm also creating a seal. A lot of guys pull the cover and don't realize that the o-rings fell off or one is still stuck to the carb body. Pull the cover off and put on some new o-rings.

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