Hey all,
This one has me scratchin my head. 2009 Merc 60 hp EFI. Fuel pressure( harbor freight gauge) says 45 psi… boat runs like an ass. Full throttle yields nothing but bogging and a backfire. I put my test light in each cylinder this afternoon. I’m getting good spark. Also, I figured this out today, when I get the boat running and high idle, it’s vibrating, and sounds like it has a misfire, if I reach up and push in on the Schrader valve and release fuel pressure, the RPMs skyrocket. So in essence in my leaning it out when I release fuel pressure or I got something else going on new low pressure, new high-pressure, fuel pump, new spark plugs the boat sat for two years. My father-in-law had his leg amputated and wanted me to get the boat running. No pressure on me lol and I don’t want to keep throwing parts at it. Nobody ever speaks of intake service on these things? Is that a thing?
This one has me scratchin my head. 2009 Merc 60 hp EFI. Fuel pressure( harbor freight gauge) says 45 psi… boat runs like an ass. Full throttle yields nothing but bogging and a backfire. I put my test light in each cylinder this afternoon. I’m getting good spark. Also, I figured this out today, when I get the boat running and high idle, it’s vibrating, and sounds like it has a misfire, if I reach up and push in on the Schrader valve and release fuel pressure, the RPMs skyrocket. So in essence in my leaning it out when I release fuel pressure or I got something else going on new low pressure, new high-pressure, fuel pump, new spark plugs the boat sat for two years. My father-in-law had his leg amputated and wanted me to get the boat running. No pressure on me lol and I don’t want to keep throwing parts at it. Nobody ever speaks of intake service on these things? Is that a thing?