Thanks for the replies.
I think the prop is 14R 19. Does that sound right for a late 90s Johnson 90hp? I don't have a tach, so I cannot see RPMs. I suspect it is just a bit under powered with a 90 as Curapa said. Max hp is 150 according to the sticker. Would another prop make a difference?
Does anyone have a link to the drains with check valves?
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