Went for a ride last night, started getting a heavy vibration between 3300 and 3500 rpm on my 2009 M109r. It is noticable, heavy in 3rd, 4th, and 5th, but can feel it in 1st and 2nd too. Feels like a bit of a loss of power too, but that might just be me.
The oil level is fine, changed 1600km ago, I replaced motor mounts less than 1500 km ago, about 13000 km on bike, and have never had the problem before last night.
I found a lot of posts on this, but none very recent, and can not seem to find any definitive answers - bluey's fix seems to work for some, but not others, and I am wondering if anyone has any experience of how to solve this problem.