Ribeye 550 engine

[Garethboats]

Hi all.. I’m in the process of buying a ribeye 550 that currently has a Yamaha 90hr 2 stroke, it’s in fantastic condition and has only covered 122 hrs.
I would like to change it to a four stroke as we plan to use the boat both on rivers and open water.
Can anyone advise me on what shaft length is needed please?

[69cmw]

Surely the same length as the 90HP you already have on it 🤷*♂️

[beamishken]

99% chance its going to be a longshaft

[User name]

I just did a quick Google for its spec sheet and it says long shaft. You could measure the existing motor, or the transom to confirm though.