The difference of an 85 VS 86 200X carb??

[Dirtcrasher]

My 86 carb has a broken air screw and the N2 kit I bought has a different pitch on the air screw so it's junk.

It runs great but I want an air screw I can adjust.

So, I can find 85 carbs all day cheap. Does anyone know what the difference is from the 85 to the 86 200X carburetor??

Thanks for any help....