Jukka, I can confirm that my Rex Comet Cross moped (very small motor cycle) was equipped with such a manual device back in 1975. Although my Rex was more modern than the Soviet WW II fighters, it had no M-105 engine. 8)
(Too lazy to mention any source. . .)
This was the fateful year when I chose to spend the whole summer with a pretty girl, and turned down Adolf Galland's invitation from the previous year - "nächstes Mal fliegen wir"! I found that girl to be more pretty than Adolf Galland. And as a matter of fact, I still think she was. 8) 8)
Check out a photo from those days - the second photo from above:
http://www.bergstrombooks.elknet.pl/bc-rs/veterans.htm
However, there will be no photo of the girl in question, only Galland and me.
