I believe this carb is from a KX80 from 1983-1984 but please satisfy yourself from photos and information given that this is what you require  

ID intake 32.5 measured on a manual vernier , Needle is a 5EJ36 and nozzle is a 394 over P - 0   

Overall condition is very good although it has had a slight knock next to the choke threads ( see pic 7 ) , Choke fitting will be unaffected as I have tried a choke from another bike and threads are fine and plunger works normally , idle adjuster screw ( 5mm thread ) and choke are missing 

Nothing is broken or seized , I have turned the pilot jet and undone the small screws in the slide , air slide is working smoothly  

Feel free to message me for any more information

SL U3