Minimum 5kva is recommended for a 180 amp Minarc Mig on lower settings or 8kva for full power, what are you running your 200amp at on 2.8kva and is the welder specified as generator friendly ?
Ive used the welder up to setting 5 out of 7 and it worked fine.
And i dont no if its generator friendly but it works and its the only option i've got.
My lad was using a 4kva genny to power our 180 Kemppi MIG. It soon fried the slip rings and brushes. Welders are very hard on genny's hence the general advise of twice the kva of the welder for a genny. W/A