Does anyone have advice on rewinding Formula Junior motors? I got a few of these motors in a scrapyard joblot a few years back, I've managed to get three of them running but I'm left with one that is completely dead and one that will only work after a manual spin of the wheels. After poking around with a multimeter I think the connections are completely shot in the former and half there in the latter (connectivity between two of the armature segments). I've tried locating end wires and re-soldering onto armature but no success on these, so I think the only hope is complete re-winds. If anyone knows the right type of wire, number of windings (I suppose I can try to count when I remove the old wiring if I'm able to unwind it fairly cleanly), and any tips on how to do the job (I think it is going to be very fiddly) I'd appreciate it! Also on remagnetising after re-assembling - do they need to be "zapped" or will leaving neodym magnets on each side for a while be enough to reinvigorate ? I know it will be more sensible to buy new running motors but I just fancy a crack at restoring these.