I do remember that from the guys that rode those old 500 and 750 Kawasaki'sBlipping is a vestige of 2-strokes, when the plug would load up with oil and crud if you let it sit at idle too long. You'd snap the throttle to burn/blow it clean so it wouldn't gag on take off.
When we junked the oil injectors on ours and mixed the oil in the tank we no longer had that problem. But as a note, there was always a spare set of plugs in the tool kit too.I do remember that from the guys that rode those old 500 and 750 Kawasaki's
back in the day. Always blipping the throttle. That I understand.