I've always wondered what these black little rubber pucks are supposed to be good for on new air cooled engines? They sit between the fins, I'm sure everybody has seen them at some time, and sooner or later they disappear, fall out. What's their purpose, I wonder?
Hi Bob, I thought about vibrations, but especially BMW would come up with a better idea? Usually those things disappear after a few thousand miles, and I haven't noticed a difference. Just sold a Kawasaki Boss 175 and the guy asked me what those rubber things were for, I didn't know what to say. Vibration and engine noise on a 175cc engine? There's got to be another explanation!