Fuel Issue?

[Gspt2000]

I have a 2007 Maxim 2400SE that feels like it is struggling to get fuel. I push the throttle down and it gets to about 3000 rpm’s @ 9.0 kts then starts losing throttle on its own. I am also smelling gas at the helm. Sometimes at the same amount of throttle I feel it accelerate and/or decelerate.

Changed oil, plugs, wires, distributor, filled with fresh gas, replaced fuel filter, added seafoam, and cleaned vent line (not clogged).

Any thoughts? Thank you in advance!

[mmwjr]

What engine and is it carburetor or fuel injected?

[Gspt2000]

Mercruiser 5.0 Fuel Injected

[mmwjr]

You can check the fuel pressure on the rail, see the Mercruiser manual for your engine under Documents. You may also want to have the ECM codes read by a mechanic or someone with a Rinda tool.

[mmwjr]

Is the boat kept in the water? If so are you certain there isn’t marine growth on the bottom?

[Mr Hemi]

I would not use it until you find the problem.
Smelling gas is not something you want when starting the boat.
I have never smelled gas on my 5.0 MPi motor.