Technical Notes BMW Motorcycles

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Louis Coatalen, Designer
Singer 1912 WC 4-valve Racer

Jaroslav Koch
First Production Twin-Cam Engines
DOHC 500cc Praga BD

Vittorina Sambri
Italy's First Woman Champion
Moto Borgo

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Christian Bynum's Classic BMW Motorcycles: Technical Information

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I maintain the following pages on technical aspects of classic BMW motorcycles and their restoration:

The following are external links to additional techical information:

Paint Codes for BMW Motorcycles 1970-84 -- Courtesy of Robert "da Bum" Fleischer
Modifications for Performance -- Another great page for Airhead riders and racers from da Bum!
Airhead Tech Articles (Internet BMW Riders)
Duane Ausherman's BMW Tech Pages
Dell'Orto Carburetor Tuning Guide (for the R90S)
BMW VIN Decoder -- A handy reference for year/model of those mystery frames & engines
Electrical System Wiring Diagrams for Airheads -- In color!
Installing Turn Signals with an S Fairing -- An easy, detailed how-to by Jerry Cook
Installing Hella Bar-End Turn Signals -- For that retro look! By Craig Vechorik
Testing the Airhead Diode Board -- By Rob Frankham
www.vintagebmw.org Vintage BMW Technical Q&A -- Solutions to common maintenance issues for /2 motorcycles
Rekeying a Lock Core -- By Butch Hays