I've got two Lawnkeeper by Victas with the Chonda lump. They are both good rust free bases but both aren't running right. One won't stay on and the other over revs due to a stiff choke butterfly. They are good engines but I just can't be bothered to learn how the linkages work to get them to run right.
Tempted just to stick powertorques in them but the British racing green colour of the base seems to denote then as the lowest tier models to would be buyers.

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