I learned the hard way about electric starters.
I had a T140 electric, if you didn’t kick it over after it had stood for a few hours when starting up then the electric starter would seize.
Which killed the engine, even bump starting didn’t help.
Since the z750 is less higher ratioed, the chances should be slim until you get to high mileages.
Which after kicking the T140 I’d be more inclined to use the z750’s kick start.