The RD and Big Twin carbs don’t have a seal or gasket on the nozzle. It’s a machined fit.
Here’s a parts manual for you.
Well, that’s strange. I had a parts list when I did my RD restoration last year and saw in the carb diagram there was no seal or gasket on the nozzle. But when I took my carb apart, there was a gasket on the nozzle and it took a new gasket for the carb bowl and upper body to seal up together.
Bob
1937 Champion D2C Deluxe Lite Twin
1954 Johnson CD-11
1955 Johnson QD-16
1957 Evinrude Fastwin 18
1957 Evinrude 3022
1958 Johnson QD-19
1958 Johnson FD-12
1959 Johnson QD-20
1982 Evinrude 25hp
“Every 20 minute job is only a broken bolt away from a 3-day project.”
"Every time you remove a broken or seized bolt an angel gets his wings."