I've bought a few scramblers that had just a killswitch, to eliminate battery. If your bike has no killswitch I would guess it's just a crossed wire. The wire from the mag could to straight to the coil or to the key. Cross em and you'll know when you try to kill it.
Anyway she runs. Put an old fuel tank on so I didn't mess up the TS tank while it is in paint. Cleaned the carb and pulled on the choke. 1 kick later and she came to life. Needless to say I was impressed! 1 kick!
Also, there are no bugs within a 1km radius of my house now either.
So left on the to do list:
1. Finish Paint
5. Seat pad
7. Ride the blip out of it