2016 Grizzly Engine Noise

Hey guys & gals, I am new to this forum and new to the Yamaha product "Grizzly 700 EPS". I am in the process of completing the required break in period of 300KM before the first fluid change and was out on the lake yesterday to put some time in and working on the top end "break in" (1/2 to full throttle). Around the 1/2 throttle I was experiencing an elevated high pitch noise coming from the engine. Their is no noise from 0-1/2 or 1/2 to full, it just happens around the 1/2 throttle it also happens in either 2wd or 4wd, no difference, has anyone else noticed this?

Thank you…