Spraying Seafoam directly into Honda 2000 Carb.

Forget the Seafoam and I think you will find the issue is the internal fuel filter needs to be cleaned which was what caused my 2000 idle issues. It's IIRC a little involved to get to, but not hard to do and you should be able to find directions on the internet somewhere. That filter needs to be cleaned about every 50 to 100 hours of runtime.

Larry