Engine not revving above 4K RPM

[YamahaAR192]

Engine is not able to go over 4 thousand RPM, it makes a sound like it’s short on fuel.
I changed the spark plugs, the super charger clutch I and cleaned the fuel pump.
I suspect is the fuel pump or the injectors.
I’m trying to avoid getting a new part that will not address the issue.
Fuel pump electric connector had signs of bad contact (electric burn)

Anyone had a similar issue ?

It’s a Yamaha AR 192 supercharged 2013

 

[YamahaAR192]

This is the link to the video showing the issue

 

[VitaminSea]

Did the N2k Comm Error coincide with this issue?

 

[YamahaAR192]

No, the N2k error was there before this issue started

 

[Neutron]

Did you do a compression test? Should be around 125psi

You can do a fuel pressure test if you can borrow a tester

 

[FSH 210 Sport]

When was the last time it ran correctly?

If there was a bad connection at the fuel pump power connector and the connection was burnt, there could be more damage to the connection where you cannot see it on the fuel pump…

Pull the injectors off and examine their little filter screens on the inlets.. sounds like a fuel starvation issue to me.

 

[YamahaAR192]

Update: I changed the fuel pump with no improvement.
I cleaned the injectors and their electric connections, no improvement.

I noticed that the battery terminals and the battery cutoff switch are rusted, tried cleaning them out, and now the boat has no power at all.

I think there is an obvious problem with the battery cable and the cutoff switch.

Planning to change that next weekend.

 

[mark_m]

Make sure you have all the coils plugged in. Ask my how I know…