'02 Yamaha 150 V6. There is a large oil reserve tank in the floor of the boat and a small reserve tank on the motor. Large tank has a lot of oil in it. Reserve on the motor fell below the line and the alarm went off. I was out in the water so I just filled the small tank up and it ran great. So can someone get me started on trying to figure out why the big tan is not feeding the little one?