benjhind, I have the same problem on a boat I inherited. I know it has been a while but do you by chance have a picture of what you did? Not 100% what you did... Do you remember the pitch or thread of the bolt you used? I also do not have a trim gauge. So I assume the wire coming doesn’t need to...
I have a 92 50HP 2 Cycle 3 Cylinder Yamaha on a 16ft bass boat that will only get 4200 RPMs at WOT with 1 in the boat. With 2 and gear runs at 3800 RPM. Also it is a little tough to get on plane. I feel like it has a fuel restriction but... It will pick up a bit when you hold the choke. Has the...