So first time this happened was about two months ago on a colder moister morning where the engine would really just not go past 2900 to 3100 rpm. Other than that seemed smooth and fine. After a few minutes problem went away no issues for two months maybe 15 trips.
This weekend same thing colder moister morning but it was stuck for maybe 2 hours or so at 3000 rpm then corrected and was good for the day.

Seems like the high speed stator coils aren't working when its cold or Foggy? anyone have this happen before and know how to diagnose or know if its the stator or switch boxes?

I tightened all the stator connections to be sure and that didn't solve it that morning when it wasn't working for 2 hours

Thanks!