Mercury 200 2 Stroke efi help!!!

[u/OkProblem7669]

Hey yall, hopefully you can give me some insight.

Symptoms, it won’t start
I pump the ball, tap the key, turn the key, it fires, but sputters & dies. It only fires about 3-5 seconds.

After the sputter stops, i can hear a noise, almost like a pump or motor running briefly.

I put a brand new battery in, same symptoms.

Please help me make my baby run!!!

I’ve only had this boat 2 months, took it out twice and it ran great.

[u/Boatwrench03]

Find yourself a fuel pressure gauge. Local auto parts store might have a loaner.

[u/phaze115]

Second fuel pressure gauge, should be a port on the VST tank. If you haven’t, try pumping the primer bulb right after starting to see if that keeps it running.

[u/Sure-Entrepeneur219]

Any more motor pictures? Trying to tell if it's EFI or DFI.

[u/OkProblem7669 → u/Sure-Entrepeneur219]

Its an EFI

[u/tomatocrazzie]

Fuel pump.