The fuel pressure regulator on my 1991 K100 RS 16v ABS was just sitting on top of the engine behind the not connected to anything.
After some searching I found out where it is supposed to fit

I looked on Max BMW to see what screws I need to attach it but they don't show a part number (nor do they show the mount as far as I can see)
Anyone know the type and size I need to reattach it?