2000 mercury 225 oil pump removal

[spd663]

I AM WANTING TO REMOVE THE OIL PUMP ON MY 2000 MERCURY 225 PROMAX. I CAN NOT FIND ANY INFORAMTION ONLINE ANY WHERE ON WHAT PARTS IS NEEDED AND WHAT HAS TO BE REMOVED AND REPLACED ANY AND ALL INFORMATION IS APPRECIATED THANKS. THE REASON FOR TAKING IT OFF IS BECAUSE IT SEEMS LIKE IT IS NOT SUCKING THE OIL OUT OF THE TANK IN THE BOAT UP TO THE TANK ON THE MOTOR. ONCE THE OIL TANK ON THE MOTOR STARTS TO GET LOW THE BUZZER STARTS GOING OFF.