My '98 Merc 50 bigfoot 4 stroke has been running very rough at all speeds. When the trim is lowered much past 1/3 down on the trim guage, the motor dies and won't start. I've noticed that pushing in the key to activate the choke when the engine is running has no effect. I've replaced the...
My 50 4 stroke bigfoot started acting up out of the blue. Runs rough through all ranges while trim is up a little bit. When trim is moved down the engine dies and won't run at all. New spark plugs, fuel moving through filter fine. Anyone have any thoughts? Fuel pump?
