I have a 1973 Johnson 4hp Model 4R73. I Just installed a new fuel pump because I took the old one apart without marking anything. I had no idea how to put it back together. I then found Leeroy's Ramblings and decided to rebuild the old one. Now I have two working fuel pumps that have had gasoline run through them. Is there a way to clean one of them so it can be stored for future use. Thanks, Mike