I used common dieselfuel (with ether) as primer to start, the temperature was about 20 degree in evening. In fact the engine was easy to start than i used the dieselfuel with modificated olive oil as lube (etherless fuel blend of kerosene and modificated olive oil as lube) who was difficult to start without to warm up the cylinder with heat gun.

I do not have the electric starter to learn out the engine was possible to start up with the old fuel receipt from former soviet era. In the book, they used the rope to start the engine, also faster than hand starting and without to use the primer...