@josephmetalman With any business, it will take years before it is proftiable and turns an upside for owners and initial investors. If you cannot survive on the salary provided from the resturant there isn't much logic in remaining in the venture as a salary employee.
Taking the quarterly draw as a form of passive income isn't a bad idea, perhaps you could keep your primary job and work part time for a salary, and gradually increase your stake in the business, to increase your take.
The current economic climate isn't the best, keep that in mind. But I would consider an increased investment, offer to work part-time on an "when I can basis" perhaps for a lesser salary, and keep my day job, and remain patient understanding it takes a lot of time, energy and money before a business becomes a profitable money maker.