Its not so much that it becomes disabled after you start, its just that the same rules apply anytime the key is on, i.e. it won't start in gear, with the clutch out. While you're motoring along, (in gear, clutch out), pressing the start button interrupts the headlight, but thats all. If you hit it though while you're holding the clutch in, or while stopped at the light with it in neutral, you're going to have whats known as a crash engagement.
-RP
Lol,,,,, "Crash Engagement",,,,

Sounds like the prelude to a Shotgun Wedding!!

Thanks to everyone for the information
