They don't normally give issues in this dept, I would check your charging rate first, if too low although it will start can give problems with some lecky stuff being more sensitive, first thing to go though is the rev counter will stop reading with lowering voltage, otherwise think you've just been unlucky with having a few probs crop up at once, try cleaning the earths where you can see any as well.
I assume your battery/charge warning light works ?, if not just rev to 3500 or so and this will kick the alternator in.
tabetha