Originally Posted by swatguy
With the above mentioned the MCX makes kind of like jet engine noise around the 15mph mark. Same happens with my LTR when I start off. I can't recall exactly what makes it, but if I recall correctly its the fuel getting to engine or something of that sort. Perfectly normal.
Mine makes the same noise under load and heavy acceleration. It sounds like a whistling noise.
Gone, out doing soft recreational past time with overpowered boat!