I’m biased towards Japanese outboards. They just seem to work, much like their automobiles....
I have thoroughly abused a 97 Honda 40 duck hunting and would have another one in a heartbeat. Yamaha 4stroke on our pontoon is incredible. Doesn’t even require a strong battery to get rolling.
mercury made by Yamaha 👍🏻
Mercury home brew, probably not.
4strokes aren’t inherently bad outboards. Hp to displacement rules internal combustion. No replacement for displacement.