Please choose the correct ending to complete the given sentence: Cars & Other Vehicles: [header] How to change your mercruiser water separating fuel filter [title] Turn off your battery switches or disconnect the boat's batteries. [title] Turn off your fuel supply valve (if equipped). [title] Position a fan to ventilate the bilge and work area.

Ending1: [title] Inspect the engine for leaks from the spark plug. [title] Before you start talking to your mechanic that did the last block of engine fuel, replace the plugs with new fuel plugs (battery clips are black). Ending2: [title] Place some absorbent towels under the filter to catch any spilt fuel. [title] Using a fuel filter wrench, remove the old fuel filter. Ending3: [title] Remove the cabling trim above the door. [title] Remove the exhaust pan to expose the bilge to the air flowing through the hose on the bottom. Ending4: [title] Find an extra tank and replace with spare fuel. [title] Check your tank's filter (if equipped): [step] If it's missing an extra tank or is bearing too much weight too fast.

Answer format: ending1/ending2/ending3/ending4