Well people, I spend some more data for those who are interested in the subject.
On the one hand I managed to get the original carburetor code. The Daihatsu part number is 21100-87b57-000.
It has not helped me much for now, since I have not yet been able to find any repair game. What I am convinced that if I have to change it I will put one of Fiat or something well known, that the spare parts are easy to get.
On the other hand, the manual !! To be honest, I still did not lower it or tried it, but the manual that supposedly has all Daihatsu data from 80 onwards is called Microcat Daihatsu, and can be downloaded from Taringa. Of course, you have to install a Downloads administrator because they are like 4 GB ... I'm starting to download it now.
I hope it is useful. Info.
greetings