Suzuki DF 90 help ?????

[lowtide]

I cant believe Im asking for advice here but Im stumped.
My little skiff that I beat around in has a 2006 Suzuki DF 90. I love this boat and engine and I take very good care of it. I replaced the fuel seperator and fuel filter [ outside of the engine filter ]. The motor runs great except when you go over about 4ooo rpm's. At that point she practically stalls out as if its starving for fuel. Any ideas ????? motor has about 100 hrs on it.

I looked under the motor hood and noticed the fuel line running into a plastic thigamajig. Has a fuel in line and fuel out line. Anyone no what this is ???? another filter ???? if so, Ive never replaced that one but not sure what it is or does, or anything else to look for.

Ideas and pics [ no nudies please ] would be great.

Thanks, Mr.Tide.

[gottaflylee]

Had a similar thing going on with my Honda 90. Turned out to be 2 things.

1) Collapse of the fuel line in the engion due the ethanol

2) Carbs ports stopping up due to ethanol build up.

[clt_capt]

I had an issue with an oil sensor with a different brand engine - It thought I didn't have any oil in the external tank and cut the RPMs back

This was a 2 stroke.