What I would add is that I would rather follow the original MZ manual, which actually states the below:
Main jet: 140,
Needle jet: 70,
Partial load needle: C6 with 5 notches,
Needle position FROM TOP: 4 to 5 (5 just for running in),
Starting jet: 110,
Slow running jet: 35,
Float needle valve: 20,
Slow running air screw: 1.5 revolutions open (from fully seated).
I don’t think any manufacturer would recommend a needle to be in anything other than the middle or close to it for a needle in order to allow for altitude and tuning and other things. So I would double check the above wording. I have found mistakes in Haynes books concerning both MZ’s and other makes, so always cross reference with the original service books first! 🙂