Hey guys I have a 50hp Merc carburated 4 stroke and it seems to run rough at idle sometimes and occasionally stall out. Trolling around 3-5mph it sometimes misses. Running 2000rpm and above it runs great and seems to run better after going WOT for a little while.
Changed the fuel filter, plugs, ran a bunch of seafoam through it this year. Runs better after plug change but still happens consistently.
I also notice that the fuel bulb doesn't stay stiff on this motor...I've heard that this can be typical on these models but not sure.
Has a built in fuel tank and put in a new fuel bulb this year.
What else could be causing the issue? I know it was sitting quite a bit last year so hoping there isn't a bunch of water in the tank under the floor. Would be a real pain to pull the floor up. Any ideas?
Thanks!