Yep, you're not wrong there!I have the exact same bike and been fine with electrics, you need a wiring diagram and a systematic approach or take it to someone who does, fiddling will just get you in a deeper mess faster
Cheers Hubert, have PM'd youDo you have a wiring diagramme? If not, I should have one if you want to PM me your email address.
I suspect that you have a badly secured wiring loom that may have been flexing and has bust a wire or rubbed the insulation so that there's a short developing. From the wiring diagramme, see if there is a section of the loom that handles the wiring for all the bits that are giving you problems. If you have a meter or continuity tester, check components like the starter button by disconnecting and it so you can try and isolate any individual faulty components.
I would check round each of the connectors one by one and clean them up. Slap some di-electric grease in each to keep them in good nick. After each one check to see if the problem persists. A step by step approach should show you where the issue is.
There seem to be a load of electrical issues with the 350f both old and new. I put it down to cost cutting and using progressively cheaper and thinner wiring in the looms. The FI complexity doesn't help by needing so many wires and connectors.