First video running, PTO not engaged
https://youtu.be/SvlgtaIdMGc
Second video PTO engaged, running normally, you can hear when I engage it.
https://youtu.be/VJ32TzsokH4
Third video, PTO engaged and bucking. Near the end I disengaged the PTO, it's still bucking until I drop the throttle.
https://youtu.be/y72DxgpXRHY