If it sparks nicely and your bantam runs nicely ?
Failing that, I seem to recall you can flash 6v from a torch battery across it somehow and see if it sparks.
I think you can even wire in the battery to get it running - for a wee while.
The details are a little rusty however, it has been a while since I played with a (very ) tired little bantam.
Oddly enough, a wico pacy points setup/housing emerged from the rubble here just recently - without any points though.