2001 Mercury Mariner 50-60HP Factory Service Manual, Page 27Get this manual
MAINTENANCE
Fuel Line Inspection
Visually inspect the fuel line and primer bulb for cracks, swelling, leaks, hardness, or other signs of deterioration or damageIf any of these conditions are found, the fuel line or primer bulb must be replaced
Changing Engine Oil
Oil Changing Procedure
Pump Method 1Place the outboard in an vertical upright position2Remove dipstick and slide adaptor tubepump down dipstick tubePump out the engine oil into an appropriate container