The fuel pump I ordered was mistimed which means the inlet went into a chamber with two outlets. I adjusted it correctly by removing the front and rotating it clockwise one position to line up with the arrows on the back. It still doesn't pump gas though. When I took it apart I noticed that it also has a button and spring on top. Not sure if it has anything to do with it not working as I've found that the Mikuni pump repair videos don't show anything about the button and spring over the diaphragm.
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