2006 DD Moomba LS Took it out this past weekend everything ran fine, just had the 150hr service last week and the dealership said everything checked out. Today after work we took the boat and idle'd across the water, then gave it a little gas and everything is fine until 3k RPM and then it sputters and will not go any harder, if the throttle is depressed wide open it will bogg down a bit and back fire occasionally. -Running in neutral I can rev up to 4k with no issues -Out of the water on the trailer i can rev to 4k in neutral or in drive (no major strain) -Runs fine in the lake at 1500RPM (slow take off, slow speeds, etc..) but nothing over 25MPH It FEELS like its not getting enough air when under load and I try to give it WOT. I took off the air filter and looked at the butterfly valve on the intake manifold and everything is appears normal, the valve opens/shuts as it should. Any ideas?
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