Russian motor from washing machine with 4 wires coming out. How to use for windmill generator?
Washing machine motor (especially an old one) is most likely to be an asynchronous motor - they can't work as generator. The minimal voltage you see comes from residual magnetization of the rotor acquired over the years. A brand-new specimen wouldn't yield even that. 

You should have noted how the motor was connected before you took it apart. One pair is probably the main phase and the other the startup phase, powered via a capacitor to achieve a phase shift. There is no winding for the rotor.
Capacitor start induction motor on Wikipedia

About the photos you posted: I can see the word "kondensator" which means "capacitor", and "6mkF 600V" which seems to be "6μF, 600V". That most likely is the spec of the capacitor required for operation.
I think it reads 50Hz, 180W, power factor 0.9 (cos fi), 220V, 1.5A.

/edit: Ah, I forgot about one thing. Washing machine motors usually are bit more complicated because they have twin windings to be ran in reverse and often have yet another, "high speed" winding for spinning. But that's all in the stator, the rotor is just a hunk of metal just like any other induction motor. If you want to learn more about your motor, google yields some schematics if you ask about this model: https://www.google.ru/#q=%D0%B0%D0%B2%D0%B5+071+4%D1%81

(A tip for future research on russian and soviet parts: open google.ru, it has Cyrillic on-screen keyboard so you can actually type the model you have)