Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Welcome to JUST ANSWER small engines, let me try to help you !! I don't know it all, but maybe together we can get you a satisfactory answer!
A 22 amp rating on the compreser motor should have easily ran off of a 7000 watt generator! Did generator die or did compressor motor not start?
Air compressor is even less that the first motor shown, at 17 amps.?
A 10KW generator will start both at the same time!
I'm not sure how you wired it, but by all indications, the generator, if working correctly, will run both units, it would be marginal if both were started at same time.
I see question is still open, please use 5 star rating to close.
You have a compressor that has starting problem, not too small a generator.
Check compressor unloader valve or check valve , loading the compressor for starting.
Compressor is rated at much less than the generator is rated at! Either the generator is not doing what it is rated, or the compressor is pulling too many amps. From what you say, it has to be the generator!