Hi Sapper and Tyler,
here is the exhaust port on a 125 of mine. I will need to pull the head off anyway, as it has a broken fin and I have a spare I want to fit.

Attachments
IMG_20200227_200115-1000x563.jpg (54.02 KB, 45 downloads)

Ahh, if only victa had kept producing the thumblatch catcher series, they would be in better shape today!