I had a similar ghost in my 950, turned out it was the ignition switch attached to the bottom of the key tumbler. Try hotwiring the bike. directions in the HOW
then search for "hotwire".
It's pretty simple to test. If the bike fires, you've got a bad key switch. You can buy a new one and unscrew the electrical portion off the key tumbler, and then attach to your already installed key tumbler.