I appreciate all your suggestions.
I spent the many hours yesterday and today taking apart and reinstalling all the electrical connections I could get to. Still no change, when the key is turned on the tach cycles normally and when the start button is pressed ...Click and cycle again.
Did try to jump with a car battery but no help. I may have been wrong about the batteries going dead. The old and new are 12 v plus and charged. Weird that this problem seemed to happen gradually. First the bike started normally and then the system acted like the battery was getting a parasitic drain. But now I know it is something else.
I have loaded the bike up on the trailer and will take it to the KTM shop Monday. I do trust the mechanic there, he is an ol' pro and has helped me before. I will let you know what the problem is and hopefully save others from this.
KTM 400 XCRW with Thumper Racing 450 kit and 450 cam 2007
KTM 450 XCRW with Christini AWD and Plated 2008
KTM 990 Adventure 2008