Last year at the start of the summer boating season, I got our 18' boat out of storage and prepped the outboard motor for the season. Everything worked great in the driveway. When I launched "Quit-cher-Bitchin", as soon as I got clear of the launch sight, the motor began to act like I forgot to put the sparkplugs in! Very sick. I limped back to the dock, popped the cover off the motor and discovered the mice had built a nest out of insulation in the cover. It got sucked into the carberators and ran like it was choked up.....dah? Needless to say, it was only the start of much more problems for the boating season.......Some other time we'll go into that long story. As you say, I hate those little rodents!
Jim