Vintage BMW Motorcycle Owners

I,m not done yet ! 1 for 9.99 2 for 12.99 https://www.amazon.com/dp/B01KFKDZ60/ref=twister_B08V4ZSQ1M?_encoding=UTF8&th=1 Aux Horn Relay.jpeg S1 will turn off dual horns if not needed, best located on dual horn bracket ? Thanks to srankin for #30 on relay connection to to larger Red wire to star...

Craig Yes that is a good static test if that fails it is bad Note: Condenser must be disconnected Easier just unground the condenser so you don't have to remove the lead from the points or coil wire, and don't have bare hands on test leads. Rare case, only a dynamic test is best with a know good con...

If the flasher relay is defective both right front and right rear would also be bad.
I will post wiring diagram schematic later today after veviewing and post back later today

The indicator bulbs are normally replaced from the inside of the shell after removing the speedometer out the the way In the early days the 4 plastic tabs were melted in on the inside holding the lens in place https://bmwclassicmotorcycles.com/index.php/control-light-glass.html Its best to just to t...

I just read this thread from the beginning !!
What a mess
Does a additional horn button gets added so the relay get power to energize the relay to power the dual horns with a larger red feed wire and still have the original horn setup

R90s/6 Power from headlight terminal board #15 8 amp fuse to #86 stater relay then to #15 horn

I don't know what he has for a relay or where it was located (headlight shell or near horn)

IMG_20240402_115536_MP.jpg Ok To add a relay to support 2 or more horns Remove 15 anf HO wires from the horn Connect the coil on a relay to 15 and HO Add a jumper from 15 to center contact of relay,then a wire from contact of relay to feed power to the 2 horns in parallel and ground as shown Now wh...

Any good hardware store should carry a 6x1.0 jam nut

Not a Klaxon, but rebuilding of a Bosch horn was written in the Fall 2010 issue of the Vintage BMW Bulletin. Volume 37, #3 The horns I’m working on are the French made Klaxon variety indicative of the /2 era. Should these sound on the bench when connected to a 6v battery or am I missing something? ...

Is it a Bosch horn and what model number

The placement of the curved washer and order of the other spacer parts are very important
I may have your model and will get some pictures if it matches mine