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What should the fuel pressure be at the output of the high-pressure fuel pump?
My friend bought a boat w/ twin 2009 250's, Stb runs good (pressure is 40+ psi consistent), port bogs down at ~2500 RPM...

Sorry for your loss..............

Below are pics of my set-up, haven't done anymore testing yet.

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First pic shows injector mounted on a piece of aluminum w/ fuel line for supply and return, fluid id...

Understood, but I still think the nozzle is clogged, will try to post a pic later today showing how much it opens and a pic of my "fixture".

@SEAHORSE
I am currently applying ~20ms PW @~ 50% Duty Cycle.
PROBLEM: as soon as I energize the injector after turning on the fuel supply, the nozzle pops off the injector.
I half-assed created a...

Does anyone know what the Pulse Width and Duty Cycle is for the Fuel Injectors on a E175MFXSOS (2005, 175HP).
I have come-up with set-up to test the injectors but need to know the operating...

I have a set-up underway with a pulse generator driving a relay switching a power supply on/off.
I am also trying to source a Ficht Injector for eval/learning purposes.

@SEAHORSE

Can you provide the Pulse Width and Period to be used to test an injector?
I am trying to come up with a set-up to operate a Ficht Injector.
I plan on switching On/Off a 40V Power...

Understood, that's why I stated constant +40v.
How much current does 1 injector draw? I assume <10A as there is a 10A fuse feeding 2 injectors on the PDP.

Another question: If there is a fuel...

So my basic description is correct, the wires coming from thr EMM get pulled down to fire the injector I understand the PW and Duty Cycle of the pulses will change with fuel demand and fuel is...

I want to better understand the operation of the Ficht DI Injector.
According to the schematic in the Manual there are 2 wires going to each injector, looks like a constant 40V and the other wire...

Somewhat. It's a V6 so 3 on each side, 2 separate coils 1 for 2 cylinders and 1 for 1 (hope that makes sense).
Pics below show the 2 engines, the 1 on the left is installed correctly, the 1 on the...

I assume you saw my other post, this was my own fault, and it was literally staring me in the face!

Yes, thank you!!

Found my problem.
A while back I had an issue with my ignition coil. I removed it to clean the ground and when I reinstalled it I did so upside down....1 and 3 were reversed...

Problem solved!

Only sat from 11/22 till now..........

After reviewing the manual, this is my understanding of the injector operation (not necessarily in this order):

1) the 40V is constant at the injectors from the PDP
2) the injectors are switched...

Agreed what would cause this? Can I disconnect the fuel input to 1 of these injectors? I assume the fuel supply to the injectors is constant and the injectors are switched on/off by the EMM...

Compression is 75-80PSI w/a Harbor Freight Meter, not worried about the numbers, they're close!
How would it be the PDP? Seems like I'm not getting fuel to these 2 cylinders, can the PDP do that?
I...

Getting ready for launce un the next few weeks.
Finally completed my LH lower unit and installed.
Started Stb engine w/o any issues.
Started Port engine, took >6 attempts and need throttle...

It was actually corrosion under the ground.
I found a used one and the seller took it back........still honest/good people around!!

Thanks, looks like it's the secondary, reading about 270ohms, S/B 157.
Not sure of the cost, going to try to find a used 1 locally.

Started my '05 175 Fichts today.
Starboard engine started fine, port engine not so much....
Both engines went through the initial check normally.
Starboard engine started and ran normally.
Port...

UPDATE: I already removed the bearing carrier and loosened the pinion gear nut, but I can't get the driveshaft out of the pinion gear, think it's pressed in.
Any suggestions?
I hope I can use this...

I have twin std rotation '05 175 Evinrudes.
Found a LH rotation lower from a '03 200(?) Evinrude.
I am/was in the process of installing it on my port engine.
Before I tried installing, I noticed...