There are (you assert) four red wires. These are possibly 2 for run winding and 2 for begin winding. The begin winding is in series with the capacitor (massive white cylinder). Run winding have to join across mains without delay. Start winding have to be in series with capacitor. Discover which twine pairs belong together. If the winding related to w1-u1 is better resistance than that between w1-w2 attempt swapping the windings - this need to be as clean as swapping c on u1 with d on w2.
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