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Old 04-12-2011, 06:37 PM
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Default Understanding And Maintaining The BMW /2 Electrical System

  • Understanding and maintaining the BMW /2 electrical system.
Language: English.
Pages: 28

Contents:


History and Copyright......................................... .................................................. ..................................2
History........................................... .................................................. .................................................2
Copyright......................................... .................................................. ..............................................2
Introduction...................................... .................................................. .................................................. ...4
Electrical System Overview.......................................... .................................................. ................4
Understanding the Ignition System............................................ .................................................. ..........5
The Magneto........................................... .................................................. ......................................5
The Points............................................ .................................................. .........................................5
The Capacitor (Condenser)....................................... .................................................. ...................5
The Coil.............................................. .................................................. ...........................................6
Adjusting The Spark............................................. .................................................. ................................7
Checking the Magneto Position.......................................... .................................................. ..........7
Repositioning the Magneto Rotor............................................. .................................................. ....7
Setting the Timing............................................ .................................................. .............................8
Understanding the Charging System............................................ .................................................. .....10
Wiring Guide............................................. .................................................. ..................................10
Maintaining the Generator......................................... .................................................. .................10
Maintaining the Regulator......................................... .................................................. ..................11
Testing The Charging System............................................ .................................................. ................14
Test 1: No Load Voltage........................................... .................................................. ..................14
Test 2: Cut-In Voltage........................................... .................................................. ......................14
Test 3: Load Voltage........................................... .................................................. ........................14
Test 4: Reverse Current........................................... .................................................. ...................15
Look After Your Battery........................................... .................................................. ....................15
What To Do................................................ .................................................. .................................15
Ignition Problems.......................................... .................................................. ......................................16
Weak Ignition Spring............................................ .................................................. .......................16
Advance/Retard............................................ .................................................. ..............................16
Tutorial: How The Ignition System REALLY Works............................................. ...............................17
What the Magneto is doing............................................. .................................................. ............17
Charts............................................ .................................................. ..............................................18
Specifications.................................... .................................................. .................................................. 20
Replacement Parts............................................. .................................................. ................................21
Wiring Diagram Colour Cross-Reference......................................... .................................................. .22
Main Wiring............................................ .................................................. .....................................22
Turn Indicators........................................ .................................................. ....................................23
Wiring Diagrams.......................................... .................................................. .......................................24
Connections....................................... .................................................. .........................................24
BMW Wiring Scheme #1................................................ .................................................. .............26
BMW Wiring Scheme #2................................................ .................................................. .............27
Ulrich Seiwert/Uli's Motorradladen Replacement Loom.............................................. ...............28
Attached Files
File Type: pdf www.bmwcoders.com_uandm_bmw_v1.pdf (3.17 MB, 189 views)


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