Vintage BMW Motorcycle OwnersAirhead Technical Library

Section

Ignition & Charging

Points, modules, timing, coils, and the whole charging system from rotor to battery.

30 IGNITION: Points; Timing lights; Ignition Modules; Ignition Canister (rebuilding yourself or sen

01/15/2023 · 32,261 words

R65R45R100GSR80G/SR80ST9 figures

35 New batteries, ALL TYPES, including lithium. Filling a flooded battery & initializing properly.

09/20/2024 · 25,335 words

15B The Alternator/Charging System. Operation. Troubleshooting

09/05/2021 · 14,488 words

R90SR65R802 figures

15C Aftermarket Alternators: installation, capability, performance. Bosch, Omega, Emerald Island

01-07-2021 · 13,638 words

R100RT3 figures

28 Ignition Theory; simple + in-depth, nerdy stuff too, ......>>Spark Ignition Systems

04/16/2020 · 12,666 words

29 Ignition timing; automatic advance units for single and dual-plug engines; points; condensers; a

05/30/2024 · 12,654 words

R60R50torque2 figures

16A How the starter motor system operates. Starter & Starting Problems. Valeo to Bosch; Bosch to Val

08/09/2020 · 8,467 words

17 Alternator rotors, stators, brushes, cautions. DIY!

11/18/2020 · 6,713 words

16B STARTING: How it works. Problems. Starter doesn't engage or function? Starts, or barely, won't s

04/11/2021 · 6,111 words

15A WHY 3 phases? The STOCK Bosch (including TESTED OUTPUT), substitutions, ETC. More engineering in

02/10/2021 · 5,502 words

22 Make it adjustable: Bosch & Wehrle ELECTRONIC METAL CAN voltage regulators. HOW-TO-ARTICLE

05/08/2020 · 5,281 words

19 Alternator 'GEN' lamp circuit & resistor (AND, possibly LED) modifications

09/06/2019 · 5,147 words

37 Slash 5 (/5) starter relay 'cricket' noise & starting problems. Chattering starter relay; chatte

02/09/2022 · 4,967 words

R50/5R60/5R75/56 figures

21 Servicing a Bosch Mechanical Voltage Regulators, INCLUDING the /2. Includes schematic

11/22/2020 · 3,872 words

23A Increasing the voltage output of the Wehrle PLASTIC voltage regulator (for tinkerers and nerds)

06/01/2018 · 3,843 words

15E Why do alternator rotors fail? How to replace a bad rotor

07/21/2019 · 3,019 words

20 Testing Alternator Voltage Regulators. High output and/or adjustable regulators

05-08-2020 · 1,468 words

Large alternators BMW Airhead motorcycles

undated · 1,216 words

R60/2R75/5R90/63 figures

23B Schematic diagram of one version of the electronic voltage regulator

05/31/2018 · 180 words