hallo everybody after winter

my carburetor has now new setting and is rebuilt, in perfect condition, I´m waiting for the delivery... and reinstalation,
couse i had a problem with custom to us and back to Germany ( two times custom

) I decided to send it to Sweden. There ist a very good and known specialist Kent, he does it almost 40 years . I get a big report... also. My report follow after first start
but now I have two questions:
--I think about a Drum-to-Disc Brake Conversion ? everything/reports what I found hier is a little bit old 5-10 years, do you have any experience with it ? where can I find a kit for that?
--on my last picture you can see the downshift rod that operates the switch pitch transmission, it works good but i can´t find how can I make/check the setting für the right possition of the rod-screw... (nr. 1 and 2) if you know what I mean, I try to make a photo of them
Thank a lot !
Wojtek