Vintage BMW Motorcycle Owners

Hi there,

would somebody out there have a wiring diagram for the R69S with 12V generator (or alternator, not sure what the right translation is. The alt/gen is similar to the /5 stuff)? Maybe also a picture how that looks like under the tank.

thanks and best regards

Klaus

Hello,

does anyone have an easy methode how to determine TDC for a R51 or a R5 (engine case without the hole and TDC mark on the flywheels).

thanks and best regards
Klaus

I would also recommend to check more on the carb side. On my old Harleys with manual advance mechanism, the difference in idle revs is not as high as described above. I would assume there is something stuck in the throttle mechanism

my 2 cents
Klaus

Thanks for your help and advice,

I will let you know in fall how the biest is behaving

best regards
Klaus

Thanks Kurt I brought the adv mech and the carbs back to Germany so I will check them according to the info I got here. Hope I will be successful in fall when I return to Quebec. I think I read that in NA these idle jets were changed to 40 to adjust for the gazoline. Not sure where I read this, thou...

thanks Guys, it is the latest version (U-shaped spring). Question is, why did they put there a spring in the first place if ignition should not be advanced before 39 degrees? Funny is, I tried the same procedure with my R50/2. Same thing: S @ idle, F @ around 2.500 (don't have a rev counter on that ...

here we go, first help needed ... Its about my R69S (w Hollandia) which I use in Canada. It is all stock (26/91-91 carbs with large filter). Original magneto. The bike was restored by Barrington a while ago and has now roughly 1000 miles on the new engine. The bike starts nicely (2nd kick after wint...

Hello, I am already a greatly interested reader in this forum and thought that it is now about time to join and actively participate. However, first things first: I am in my mid50ties and spending most of my time in the southern part of Germany (BAVARIA, half way between Munich and the Austrian bord...