Welcome Villiers .. show is the piccys ... most of us can't read ....

Bernd
Villiers engines went in many UK bikes. James, Francis-Barnett, Greeves, Sun, Excelsior, Norman
Just a few off the top of me Bald Old Head. Probably lots more.
Very succesful in Trials bikes.
I had a James (Captain?) 197 cc 2/S For a few weeks ... until the damned things timing slipped and it ran backwards..
Not an uncommon occurence

Went back to OHV.
Never had another 2/stroke.
L.M.F.
EDIT ...also a lot used in Lawn mowers, cultivators, generators etc. .
Dave BC