I was reading up on brushless generators and recall the OP said he had a
4 pole system.

According to what I read, (should have bookmarked the URL) 4 pole
generators have a bonded or common neutral and is designed for use with
GFI protected loads. 3 pole generators do not have a bonded neutral.

I'd recommend checking your GFI's and also see if there is a large
"master" on the gen output.

Eisboch