I just checked my FE-2, both needles are exactly parallel to each other. Run a roll trough it, it may be just fine. I use mine on A mode all the time, only changing to 250 when using my Metz hammer flash; any deviations from the "recommended" exposure I use the exposure readout lever thingy (not sure of the proper name of it, it's on the same lever as the timer), or the exposure compensator dial.
And I would advise against trying a home fix unless you have experience on it. Chances are there will be an awful lot of small screws and parts to lose on the floor...