Vintage BMW Motorcycle Owners

I think Zenaida is running with a R27 crankshaft. I bought Zenaida in Mexico City 30 years ago. In 1961 changes to the Mexican regulations forced auto and motorcycle makers to build in Mexico what they could sell in the Country. BMW and other European and Asian brands left Mexico. It was until the 9...

I took this pictures some time ago.

This is your typical R26 crankshaft. You can see the slot for the woodroof key needed to properly install the centrifugal time advance unit. https://live.staticflickr.com/65535/52058056193_4645308e13_o.jpg This is the tip of Zenaidas crank, do you notice something different? https://live.staticflick...

Hello, All the lights work when the battery isn't connected. Are you talking about the headlamp and brake lights or neutral and generator lights? Check for grounds The points and brushes are great at full throttle. When the battery is hooked up the generator light stays on all the time. If I give i...

While I find a spacer bolt for the generator cover ( Salis 12318002116.7). I decided to make my own. I purchase a few M4 by 20mm Female-Female Hex Brass Spacer Standoff and some M4 bolts. https://live.staticflickr.com/65535/52018778384_493d6768e1_z.jpg https://live.staticflickr.com/65535/52018570183...

Tommy any time!

Thanks

Ok Only 2 wires out from the field coils The yellow one that goes to the terminal with the blue wire is D+ So the other wire from the field coils would be the field wire and goes to F on the regulator Tommy I have Ulis 6V Voltage Regulator and explains the 2nd wire of the generator is unnecessary a...

Bob, it was until I primer the frame that I found a second crack by the left center stand (bracket or support?). https://live.staticflickr.com/950/41962918791_73836d1a6b_w.jpg It had been repaired before. https://live.staticflickr.com/1733/42050581824_70cfbfbe7a.jpg We did apply some tension to ensu...

Hi Bob, tell Hildy, Zenaida says “howdy” from Texas. Hopefully we could meet soon, for a German Singles Ride. I suspect your motor mounts are perfectly aligned. https://live.staticflickr.com/65535/52009711412_67a0575e7e_o.jpg On the rear, the force of an impact to bend up or down (red arrow) the rea...

Jim, I used brass rivets. https://live.staticflickr.com/65535/52009523428_eb8b7cde26.jpg First I clean with a wire brush the are for the rivet to make ground contact. https://live.staticflickr.com/65535/52009523383_331fbcb6d8.jpg https://live.staticflickr.com/65535/52009473376_2ffce22b52_z.jpg This ...