That motor is a Chrysler built engine. Check out Ben Dittmar’s videos on Youtube. Ben has several service advice videos on engines just like yours.
Chrysleroutboarddude
https://youtu.be/98ioHn96sAg?si=oe3OqHI6QVULwh-X
Ben is the SIG Leader for Chrysler (West Bend) outboards.
Check INSIDE the cowling for an ID plate. Sometimes over by the tiller linkages (Port side) and sometimes at the back on the Starboard side INSIDE the cowling. Usually so dirty and grimy that they are barely visible.
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