how much motor oil does it take?

Welcome to the site bro.

As for the oil you mean the gear case correct. If so it takes 700ml and I use 10W40 Pensoil myself and I change it after every day of riding. There is a sight glass on the clutch cover also that has marks on it for how full it should be. Half way up the sight on even level ground.

Hope this helps you out.......
 
i too have used the 10w-40 in a pinch, but would suggest running a factory or bel-ray gearsaver oil at the suggested amount above