I have a '73 cb500/4. This morning I rode to work. After work I came out and put my key in and noticed that i had taken it out in the "up" position. I'm not sure what that does. Normal off is down. So I turn it to the middle and notice my battery is dead. The starter wont start and the head light is out. So I ask and get a boost. So i take the seat off ,we connect everything. I turn my bike on and notice the green light is on so I try to start it and she wont go. But then I notice there is smoke coming from the wiring that is under the left panel. I unhooked everything and start looking and I see some of the insulation is burned off some of the wiring. The wiring seem to be coming from a box that is on the bottom right of that panel. I will take a picture when I get her home. I didn't have long to inspect, I had to take a ride home. I was thinking that its my fault and I should of just let the battery get enough charge in it that I could disconnect the boost and kick her over. Any thoughts on what it might be and and what I should do would be greatly appreciated. This is her.......