Hi All,
I have managed to obtain this interesting little Villiers engine. It is a Villiers Mk XI-C that has the serial number WLA 53824. Consequently, it can be confirmed that the so-called WLA engine is a Mk XI-C (147cc). Given the shape of the petrol tank and the cowl I am certain that this engine would have originally been attached to a Scott Bonnar mower, probably a Standard.
Cheers,
Sir Chook