
O-ring for oil filler cap
27 x 3,2
The O-ring is not located on the oil cap.
If you unscrew the oil cap, the O-ring remains in the valve cover.
Not only in a race the right spark at the right moment can...
Valve cover gasket inside
R1200 models (not DOHC)...
Rubber bush for valve cover screw
BMW R1200GS...