yet another ktm 790 adventure not starting - day 3 -bike starts

interestingly, today -day 3, the bike starts. the main difference is that i held the throttle open. i feel like i've done that before and it didn't start. how come it started today?? dunno. i also allowed whiny noise (fuel pump priming?) to accidently cycle twice. did that do it? probably not. i went out and rode bike for about 150 miles to drain fuel and fill tank with different fuel. i bet that it starts tomorrow.