Yamaha 115 1984 has 2 air jets
6E5-14347-35 Slow
6E5-14337-80 Air Main (1.60)
I am assuming the main Air is a 1.6mm hole
This engine has 3 jets here that are stamped 60, and they look almost the same size as the uppers
The Upper jets (assuming slow) are stamped 50 and they are tiny look to be about 0.5mm
The last Main Air is stamped 16 and looks like it could be about 1.6mm
What are these jets supposed to be.

Engine serial number is 115 AET 6E5 L 304157
I cannot find this carb in any Parts Manual
It is a Single Float Bowl
Has plugs in the bottom of the float bowl, which then cover the Pilot Jet (Idle Fuel Jet)
Stamped 94. Looks to be about 1mm

All the single float bowl carbs that I can find have the idle jet in the main body of the carb