1978 Johnson 175, 200, 235 HP Outboard Service Manual, Page 74Get this manual
gRemove two exhaust cover screws port and starboardSee Figure 5-15hRemove two lower motor cover to rear exhaust cover screws and remove rear exhaust coverSee Figure 5-16iRemove front exhaust cover to lower motor cover screw (one each port and starboard)See Figure 5-17Carefully lower front exhaust cover down to rest on exhaust housing 1One each port and starboard
Figure -17Lower Motor Cover to Front Exhaust Cover Screws 1Two each port and starboard