Because it's now running and starting as it should :doug. New starter solenoid and battery?
RSV's start virtually instantly ( within a second or so of the starter being pressed ) hot or cold, if they don't there's are problem.
Just look at the number of post on "my bike won't start" !!
I would still use some cold idle though as Mr Chow states, it will need to idle until warm otherwise it will stall