Originally Posted by Bill Harris
That nut in the airbox? It is probably 12mm wrench size and propbably came from the lower attachment stud on the airbox covre (like just below the brether hose in your photo). Someone dropped it, it scurried under the spring metal clip on the tranny. My first guess.
+1 with Bill.
Mike V. / San Diego
1978 R100/7 (original owner)
1981 R65 (fully restored)