Thank you for the information Jake... I will keep a spare AOS available for the next time... There will be a next time.
I installed the new AOS today and got the Jägermobile back on the road... Sure was smoky for a few minutes. I will probably change the spark plugs this weekend.
I cut the AOS diaphragm casing to take a look inside and here is what I found:
The material of the diaphragm was flexible but tore very easily. There were at least three holes that were visible.