The covers hinged differently, the Johnsons opened with the back half flipping up and over the front half, then the front half was slid forward to complete the removal, leaving a faceplate with choke and mixture screws still attached. Evinrudes, the port side flipped up, the starboard side was fastened by two screws. Choke knob has to be removed first, but mixture needles were on the division line of cowl.