I am pretty sure it is dealer dependant. I know many are rigged with Hondas. My good friend just purchased a new 23 with a 225 Honda and according to him the dealer offered the boat with Bombardier and Yamaha power as well. He enjoys the 225 4 stroke very much. As for construction much has changed details are found with in this forum. The design is however, still the same.
You should probably read this:
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