Which receptacle is positive

SOURCE: what size generator, watts, doe's it take to start AC unit 57915.531 ?

a 10000 due to the startup surge. also need start kits on any ac started by a generator.

SOURCE: Power Generator

You have a brushless generator and you've already checked the capacitor that does the voltage regulation (wiring is fine).
The next thing to look at are the diodes, movs, and wires in the rotor.

Carl

SOURCE: buffalo tools 4,000 watt generator

wow, that is high, i would think voltage regulator is faulty also

SOURCE: I can not find the positive and negative

i beleive that this unit is a generator only,to flash it go to the armature and flash it there.

SOURCE: 2 generators 1000 watts invertors

This cannot be done successfully with a standard generator.

Inverter based generators may have the ability to be paralleled with another of same exact type (like some Hondas and Yamaha), but these are the exception.

Unless your generator specifically offers the option, attempts to connect them will result in both electrical damage to the alternator, and likely mechanical damage to the engine.

I suspect that you are trying to get additional power to start a heavy load that a single generator isn't able to accommodate. You are able to use a storage battery in conjunction with a Trace Inverter to accomplish a similar goal. Once the battery is charged (by the inverter), the inverter will add generator power to inverter power to get the load started. This is a very expensive way to meet the goal. Better solution would be to trade or trade in your smaller generators for a larger generator that is suitable for your loads.