Thanks, this was helpful
Not completely, but now I'm leaning away from it being bearing related and more toward the mounting. The last few days, I noticed I could reproduce the sound when using throttle only, and the sound is still coming from the non-drive side. I think if the motor isn't completely tight, or has loosened over time, it's shifting position on the non drive side. I'm going to see if there's a way to provide better support or maybe shimming it somehow. Either that or just be lazy and live with it.