Details are: Masport XRS 60 mower/Combo 3 in 1 Multi
couldn't find a stamp on the engine, but didn't really want to take it apart (again) to try to find out if its in a different spot to usual.
There were a couple of stickers which had the following numbers
YBSXS.190VC 2743543566 and 1167197

I took some photos of the unit but need guidance on how to get the photos into the post, as copy/past and drag/drop don't seem to work.

Ive looked up B&S governor info and will adjust the governor according to specs tomorrow. Hopefully this will solve the problem, as I took it all apart today (the carby et al) and wasn't aware that the governor had to be re-specced.

Thanks for the info.