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Good point on Timkens, -The Shop that handles all of my cylinder head work is also a well known Harley Drag racing engine builder. Harley Motors use tapered rollers on either end of the crank and the shop has used Timkens forever for this app, but lately they have been receiving bearings from the su...

Stephen, -I have used Duane's method of bearing set up for the last 10 years on all of my pre-70 bikes and I have seen what happens when things are set up too tight as well. I just use the bench measurement as a baseline and install the wheel to make my final check. You are right, -it works like a c...

Good morning everyone. -Not so much a question as sort of an obvious heads up So after getting down to the bottom of my charging issue (thanks a ton!) I Noticed a little sloppy handling in the corners and control issues at low speeds that I attributed to the notched steering bearings. Wanting to pro...

We have a winner. -Studying the wiring diagram further and exploring the possibility of a starter relay fault, I found that a previous owner had switched a black wire from the relay that goes into the headlight bucket and attaches to nothing with the blue wire that goes to the voltage regulator/stat...

Thanks for the Reply, Stephen. I did test the slip rings isolated from the brushes. And here's an update on the status of the problem: A friend & fellow airhead loaned me a new rotor to test and it too measured 3.8 ohms between slip rings. When the new rotor was installed, the charge lamp remain...

Hello all, -new to the board & new to the world of '70 & later BMW ownership (all of my experience lies in 55-69 bikes). I will try to keep this query as short as possible, -I just picked up a 75 R90/6 that seems to be fairly solid from a mechanical standpoint and runs quite well with one is...