I have some sympathy for Silvaire's tirade from the 'land of the free'.
But equally I know a couple of people who have and currently have Jabiru engines aircraft. Compared to even an ancient Lyco they have 'issues', significantly more often and in a bigger way than any modern engine should.
I am surprised how such a simple concept can fail in some many different ways. Even more disappointing is how the Jabiru's 'improvements' are introduced generally without any background, justification or admission of a problem and frequently prove to be even less reliable than the initially problematic part.
There seems to be a serious negligent approach to testing and quality of these 'improvements' which have doubtless lead to this situation. Unfortunate for Jabiru, clumsy actions by CASA - but very much a situation of Jabiru's own making.