help this apprentice

Recently I was riding my bike for a small joy ride and I came back home and parked it to run inside to grab some things then get back on and leave. I shut the bike off and came back 5 minutes later and the bike wouldn't start the lights were there and everything but just wouldn't turn over. So I...

I have to rewire my chopped up Kawasaki. Does anyone have any good resources for me to read? I want to keep it as simple as possible, but also as simple as possible to fix down the road. Other than asking for sources to read up on, my main question at this point is: I've seen some diagrams...