The schematic is what I observed and imagined from measurement of the six terminal connections. This is a 120V 2HP electric motor with two external capacitors. The only way I can get it to come to speed it disconnect the 400uf cap and wait for it to slowly get to speed and hear the centrifugal switch open. It then works as expected under load conditions. 1) U1,U2 goes open at speed 2) Reconnect 400uf cap when at speed no effect 3) Disconnect 47uf when at speed draws 2 more amps going from 5 to 7 amps 4) Try to start with 400uf draws 50 amps will not go to speed for centrifugal sw to open 5) starting without 400uf draws 40 amps, takes 5 to 10 seconds to come to speed. 6) Lines V2,Z1 and U2,V1 control direction of motor, if connected V2,U2 and Z1 V1 would reverse direction. Something appears to prevent normal startup of an inductive motor. It was made in China and expects 50hz but was told this should not be the problem running on 60hz.