Correct prop for Sunbird 1989 Fish & Ski with 90 HP Johnson O/B

[Sea Rider]

Before installing any other new prop, you must check that OB is running 101% healthy which OP has done. Each combo has its own unique installation. As said before, you must tach an OB to reach preferably its max wot range as usually loaded soon after its break in period has ended or when buying second hand boats as won't know if previous owner propped it right. How difficult is it to understand ?

Let OP boat owner live happily with what combo has amazingly achieved and be done with it... Congrats, for secondly joining the " It's not a 9.8 with manual trim on an inflatable" Club Membership, which BTW don't have nor use...

Happy Boating