When I bought a boat sitting four years with an 'empty' tank. I added a cheap inline fuel filter to grab the varnish turning loose. I bought ten of them, eight of which was were replaced first season. Replaced one more next 6 years I owned the boat. Replaced when it started running like...
Cpule screws for throttle linkage. Olny drawback would be if changing brands but still easier. And when I redid my floor that has its own space so pulling will be easier than normal.