Videos How to Clean Water Spots Off an Engine Cowling. July 11, 2019July 13, 2019 The Next Bite Boat Maintenance, Gary Parsons, Mercury Gary Parsons shows a quick, easy, and inexpensive way to remove the water spots from your engine cowling. Other Related Posts: The Tools you Need to Effectively Fish Heavy Jigs and Snap… Gary Parsons Talks about Berkley Hair Jigs Mercury Engine Maitnence Using the Tracker Offroad UTV on the Ice