Just bought https://www.1977mopeds.com/product/50593 from 1979 for my A55 airsal.
They don't fit through the jug, but they fit through the head alright. I'm getting ready to drill out the holes in the jug, is this ok/what I'm supposed to do to accommodate these larger studs?
and yes, I'm sure they're the correct studs, I checked the dimensions with a caliper and everything checks out.