The saying goes “a picture paints a thousand words” , so a photo would help us help you. I would guess that it would be a “twin lever” carb , from their very fist models until the end of twostroke engined production , they seemed to favour and specify this style of carb. Ones for the earlier V111C engines seem more plentiful , as they were also fitted to numerous motor cycles , the ones fitted to the later 24/25c are like hens teeth.
Andy.