rusefi.com

В https://forum.cxem.net/index.php?/topic/133271-555-%D0%B2-%D0%BA%D0%B0%D1%87%D0%B5%D1%81%D1%82%D0%B2%D0%B5-%D1%8D%D0%B1%D1%83-%D0%B4%D0%BB%D1%8F-%D0%BC%D0%BE%D1%82%D0%BE%D1%86%D0%B8%D0%BA%D0%BB%D0%B0/ схема теряется, я тут её положу пока.

Hmmm, that's interesting that it worked at all. It's basically fixed pulsewidth. You dump more fuel by increasing RPM. So probably really rich at low with low load, and very lean when at high loads.

This looks much more promising.
Those were posted here.
https://forum.cxem.net/index.php?/topic/133271-555-%D0%B2-%D0%BA%D0%B0%D1%87%D0%B5%D1%81%D1%82%D0%B2%D0%B5-%D1%8D%D0%B1%D1%83-%D0%B4%D0%BB%D1%8F-%D0%BC%D0%BE%D1%82%D0%BE%D1%86%D0%B8%D0%BA%D0%BB%D0%B0/page/7/&tab=comments#comment-1818049