I am the original owner of a 2004 25hp Johnson. Every diagram I have found shows a core plug instead of a screen on this carburetor side vent. My carburetor has a screen instead. The rebuild kit I bought has core plugs that would fit this but no screens. In fact no website including Johnson/Evinrude sells these screens. There is a big difference between core plugs and screens. The opposite of the carb has a similar vent with a factory installed screen. Part number 4 on this diagram is what I’m talking about. Why the discrepancy? Any ideas? Thanks http://www.google.com/imgres?q=johnson+2004+25+carburetor&um=1&rls=com.microsoft:en-us:IE-SearchBox&hl=en&biw=1024&bih=614&tbm=isch&tbnid=_oFnC4l-WmdLkM:&imgrefurl=http://www.marineengine.com/parts/johnson-evinrude-parts.php%3Fyear%3D2004%26hp%3D25%26model%3DJ25GTESRS%26manufacturer%3DJohnson%26section%3DCarburetor&docid=IwAuCyfCLjMF-M&itg=1&imgurl=http://www.marineengine.com/parts/evinrude-johnson-parts-diagrams/JOHNSON/60110.jpg&w=750&h=800&ei=v9m4UY7KE6XT0wHpv4CYCQ&zoom=1&iact=rc&dur=468&page=1&tbnh=138&tbnw=152&start=0&ndsp=17&ved=1t:429,r:0,s:0,i:80&tx=80&ty=64
