ECN Forum Forums General Topics of the Trade Non-US Electrical Systems & Trades Reverse Engineering my Induction Motor

Are you sure 3 to 6 is 50 ohms and not closer to 100 ohms?

if 3 to 6 is higher, then the rest of the readings make sense.

Assuming 1 is common,
1) between 1 and 3 is a 50 ohm winding.
2) between 1 and 6 is another 50 ohm winding.
3) between 1 and 5 is a 25 ohm winding.
4) between 1 and 2 is a 9 ohm winding.

You mention a capacitor. Are there one or two capacitors?

Check down in the Technical section for schematics for two speed reversable split phase motors.