Could you tell me if the item n° 27


is ok for Gurtner too (for Vespa Acma VNA from 1959) ?


Best regards

I used ua16 on my acma 125 (because gurtner broke).

I'm not shure about the screw but carbs are preety much the same.

Why dont try with screw what you have at home and find which thread size you need. Probably is M5 but thread pitch is problem... probably is fine pitch..