ATV General Discussion Fuel pump diaphram question June 26, 2015 This is from a 05 sportsman 400 fuel pump. Can you tell by the picture if it’s bad? It is bowed down to the point of touching the metal cover. Should it be flat? Thanks in advance. Attached Thumbnails Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related