On my 1992 40H 2 Stroke Mercury Model # 1040411MD, I recently removed, cleaned and reinstalled both carbs, with new gasket kits. On a recent trip, the outboard ran great. I noticed when starting, the carbs leak a little. At home, I see that the small leak happens when I use the priming bulb. The needle valves looked fine to me. I'm wondering about the two little washer type gaskets at the bottom of each fuel bowl. One was thicker, one thinner. I didn't know which was internal, which external and may have them reversed. Your thoughts, please? Thanks in advance.
