I posted a question about an oil alarm several weeks ago which was answered with advice on checking for clogging in the remote tank. Just got back to the boat today and think I have a more serious problem. After checking the engine oil tank it is low so there is no question I have a transfer problem as the remote tank is full. When I attempted to use the emergency switch to transfer oil it would not work. Port motor's switch works fine. Does this mean I have a bad pump on the starboard motor? If so, is this a repair u work recommend only be done by mechanic? If can be done by me, where is the pump located typically? Thanks