Honda-SOHC

why do I tinker about with motorbikes ? the indicator switch seemed a bit unreliable so I unscrewed it to have a look found an old repair to one of the wires which seemed pretty sound so I taped it back up again and tried the flashers, right flashed ok left flashed once then no more, so I had a look at the fuses none where blown but funny thing is where the 7amp fuses should be for headlight and taillight 15amp fuses were fitted and where the 15 amp main fuse should be there is a 20amp one. I replaced fuses bike still dead I mean everthing is dead ignition lights everything, battery is good but I gave it a charge up anyway but didn't help, so anyone have any ideas ? (apart from stop tinkering) sorry this post is a bit long but I didn't want to leave anything out.