Can You Start a Business on a F1 Visa

I am a full time student (not on OPT) and am planning to start a LLC.
I know that I can't work for my company. So I asked a friend (a US citizen) to join with me and he agreed.
So here is my questions:

1. How much share can I own? Can I own 90% and my friend own 10%? Is there a limit?
2. Are there any problems with hiring employers if I own 90%?
3. Can I be the chairman or the president (only to oversee and will not be paid)?
4. My friend will be the CEO, the managing member. He don't want to be paid. But that is not legal, right? So what is the lowest possible wage for him? Can I pay him only by some shares of the company? He is a member. Is it considered as a self-employment and no need to pay?

Thank you

As a student, you may work only for very limited purposes. What you appear to be proposing is not an acceptable option. You cannot work for no salary. You cannot even hire employees because that is working. You need to talk to your DSO so you understand the limitations on your stay in the US. Either abide by the terms of your visa or expect to have long term problems.