Subject: Re: Gas tank filler cap.

they are the same size,civillian tank neck is a little shorter and has a
recess for ring that holds cap on.civillian flipper cap will fit,bend little
tab where ring meets forward a little.skip the ring,cap will come off when
opened and not flip up,no biggie,have done this lots
.Mark.wwwmotoguzziclassics.com