Vintage BMW Motorcycle OwnersAirhead Technical Library

Section

Electrical & Instruments

Wiring, grounds, relays, switches, lighting and instruments — plus how to test them.

24A Lamps; all types. Adding relays, lamp substitutions, larger headlights, MODULATORS, sockets, upd

08/17/2023 · 25,755 words

R100RT1 figures

15 Electrical hints, problems, fixes, descriptions of functions, ETC

11/23/2020 · 21,988 words

R65R45R100R1 figures

14A Basic (and advanced) electricity 101+. De-mystifying & Troubleshooting BMW Airhead Boxer Motorcy

10/11/2020 · 18,462 words

R45R656 figures

14 How to buy & use multimeters (and test lamps), basics+ many hints & troubleshooting methods

08/18/2023 · 11,066 words

38A CAN-BUS and OBDII. What are they? Other types? How it works. What's the future? "Speed snoop" bu

05/24/2023 · 6,867 words

K1100K1200K75K100K1

33 Ampmeters (ammeters) vs. Voltmeters. GEN lamps? (discussion, problems, etc)

11/19/2020 · 6,498 words

R90SR100RSR100RT

26 Metric & American Wires & Colors; Bosch Codes; BMW wire codes; wire sources; reading schematics;

08/06/2024 · 6,435 words

K1K75K100K11001 figures

18 Diode Boards & Grounding Wires in depth. Plus information on testing power diodes

08/16/2023 · 6,326 words

34 Adding Running Lamp Function to Turn Signals

11/20/2017 · 5,370 words

37A Tachometers. Connections, wire colors, retrofitting to earlier models. Schematic diagram. Checki

07/05/2024 · 4,163 words

24B Headlight switches & relays. Airheads, Oilheads, K, etc

12/02/2020 · 3,992 words

24C Headlight modulators. Federal Law. California Law. Canadian Law. Tech details. Links to sites wi

04/18/2023 · 3,766 words

38B Miscl. Electrical schematics: Hazard flasher system, fold-out fog/driving lights, heated grips,

03/20/2023 · 3,098 words

R100GSR100S3 figures

36 Accessing the headlight bucket & wiring, cleaning headlamp & glass (inside and outside); aiming

12/02/2020 · 2,574 words

R100RSR45R651 figures

14B Critique of the ChiTech Electrics School Manual; additional technical information

08/19/2017 · 2,290 words

R26R100R100RTR65

K-1, K-75, K-100, K-1100, Instrument pod calibration of speedometer; changing clock from 24 hour

undated · 2,267 words

27 INSTALLING AN ACCESSORY ELECTRICAL OUTLET; CAUTIONS! ALSO: Hella-DIN adaptors with USB output fo

12/20/2020 · 2,198 words

39H Airhead instruments, instrument pods, mechanicals, electricals, etc. Does NOT include G/S, GS, S

12/17/2020 · 656 words

38C Schematic diagrams in 3 formats: .gif; .pdf; .bmp; for R90S, R60S, R75/6, R90/6; for 1975 & into

04/12/2018 · 300 words

R90SR75/6R90/62 figures

38H Schematics & wires colors diagrams & descriptions: 1981-1985 R65, R65LS, R45, R80ST, ETC. (.jpg,

04/02/2018 · 280 words

R65R45R80ST4 figures

39I Airhead instruments, instrument pods, mechanicals, electricals, etc. For ONLY the G/S, GS, ST, R

undated · 131 words