Nope... they were always merc engines. (M2 types)
I personally won't touch a Merc powered SeaDoo. They are extremely reliable, but when there are issues, they get very expensive to fix. And, since they only used that drive system for 5 or so years... we (this forum) doesn't have a very good working knowledge on them, so we may not be able to answer all your questions.
Finally, SeaDoo has ZERO support of the Merc boats, so most seadoo dealers won't work on them... BUT... since the electronics are specialized, some merc dealers won't work on them either.
If you buy a Merc powered Doo... make sure you are able to work on your own boat, or you line up a shop who is willing to work on it for you.