These are an assorted collection of modifications in one service bulletin for the BMW single cylinder R25/2.
Gearbox, transmission neutral indicator cable modification
Battery vibration reduction
Wiring harness moved to left side of the steering head
Fork modifications
Gearbox, transmission cam plate change for more secure shifting
Kickstart quadrant spring change
Improved air cleaner
Engine oil level indicators on dip-stick are changed
Improved fuel supply to float chambers
Change to the sidecar fitting
All models changed oil filler hole and threads
Change to felt wheel bearing seal packaging
Fork top yoke lacquer removal for proper fitting
Pg 1
Pg 2
Pg 3