The high pitched noise gradually changed into amild rattle, which slowly turned into a rattle that grew
Louder and louder.
When I started to feel it in my feet, I knew it was time to have a good look.
Bearings are metal on metal, which you can feel.
Problem with the bmw is that it will idle on its side. Then the oil pump runs dry and bearing damage will follow very quickly. As the rest of the motor has very little wear, I don't think the mileage caused this wear.
The bike was previously idling on its side or run low on oil.
Riding a block of flats in the sand is quite fun!
(Previous bike: Kawasaki KLR 650: The Art of Arriving)