I have an old Westinghouse motor with a missing wiring diagram. It runs but is slow to start and sometime needs help. The terminal block has four connections, two labeled as line. I've measured resistance across all terminals and it is nearly the same. The data tag call out a capacitor size but I'm not sure were to connect it.
You need to start by properly identifying the type of single phase motor you have.
Or no humps at all?
One hump = Capacitor Start / Induction Run (CSIR) type motor
Two humps = Capacitor Start / Capacitor Run (CSCR) type motor
CSIR or CSCR versions will have a slightly different wiring diagram, but from one mfr to another, most single phase single voltage motors are going to use the same basic wiring, so if you find a diagram for one brand, it will work for this one too. I suspect you have a CSIR motor (because the nameplate only mentions one capacitor size).
No humps usually means it is CSIR but for an external capacitor, often done with submersible pumps or for machines where space for the motor is too tight. For this type of motor there may not be an internal centrifugal switch so you would use an external "potential relay" to switch the capacitor out of the circuit. that means the wiring diagram would be different yet again.