One of my riding friends has just had her 6000 mile service on her 2012 R1200RT. The valves were out of adjustment and the dealer had to replace some small pea shaped spheres and semi spheres. What are these parts and what is their function. Part numbers 11347721187, 90, 93,94.. They replaced the valve valve cover gasket as well. That I understand.
Could the wearing of these parts have caused the increased burning of oil? Dealer told her it was very odd to have to replace the small spheres and semi spheres.
Thanks for any insight.