Just pushing ya buttons W8, I dind't really think you were building a Jabiru Twin.
Sunfish says - I now have a 912 iS sitting in its box
Sorry for the drift and I'm sure I'll get accused of Rotax bashing, however that's actually quite amusing because Rotax are having significant problems with this engine at present. If you read Rotax's own publications they only produced a fuel injected version to please their customers who kept on telling them to get with the times and fit fuel injection. Experts have suggested that they released it to market too quickly.
There's one in Tassie that regularly flies to Vic or at least it used to until it spent months in a hangar at LTV whilst parts were continually shipped back and forth from Germany. Problems with the injection system. All the experts were at a loss to work out what went wrong and when it was "fixed" it burped and farted the second half of the trip to Tassie again. I have also heard numerous other reports of issues, but on the other hand have also heard a number of good stories.
I would be fairly confident that they will resolve them however if it's been sitting on your floor for a while Sunfish, you may want to talk to Floods about whether the early issues have been addressed.