I have a generator with a 240v main breaker. I want to step down to wire 2 120v outlets.
I have ran the wire from the main breaker to my sub panel (50 amp GFI), connected the neutral to the ground bar and the pigtail out of the double pole breaker to the neutral bar as well as the neutral to the oulets I intsalled. Problem, somewhere with the neutral. Only test voltage on one side of outlets. How should I reconfigure the nuetral wire as to not immediately trip the GFI?

Thanks

Not sure exactly what your doing. The branch circuit neutral should connect to the neutral terminal on the GFI breaker.