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1. Remove the original OEM plug from the engine cowling.
2. Unscrew the OEM plug from the 3/4" female hose receptacle.
3. Separate the OEM plug from the lanyard by rotating it in a counterclockwise rotation until free.
4. Fit the Flush-M™ Mercury® to the lanyard and the ¾" female hose receptacle.
(For all V8 engines - install the included 90° Elbow)
5. Install the Flush-M™ Mercury® back into the engine cowling, securing it in place with a ¼ turn in a clockwise rotation.
NOTE : Remove the engine cowling to ensure there are no leaks or hose kinks upon initial flushing.