Results 1 to 5 of 5

Thread: R60/5 charging question

  1. #1
    On the Road APEXERIC's Avatar
    Join Date
    Aug 2005
    Location
    Northeast PA
    Posts
    59

    R60/5 charging question

    I just bought a 1971 r60/5 today. I rode around town with it today, just to check it out. Then I sat down this evening to read the owner's manual. When I got to the section that states that the "charging indicator light (red) must be lit when the ignition is switched on" I realized that this was not occuring on my bike.

    Is the replacement of this bulb and the subsequent proper operation of the charging system as simple as pulling the headlight assembly apart and replacing the bulb? Seems rather intimidating in there!!

    Thank you.

  2. #2
    OscarMayer
    Guest
    I'm no pro, but I got a 1973? R75/5 with the same problem. I've determined the alternator probably needs replacing.

    To answer your question, Yes. Checking the bulb is as easy as removing the headlight from the housing and pulling the bulb and harness out of the fitting in the dash. Just takes a minute bit of effort.

    If you determine the bulb is not bad, supposedly you should check the diode board.

    The test I did was: after removing the negative (ground/earth) from the transmission housing I removed the front engine cover. I then reattached the negative wire and turned on the key to verify I was not getting a red light. Still none...

    (Turn the engine off...)

    So then I took off the little blue wire from the plastic unit on front of the alternator at the 12 o'clock position...

    expose some of the metal at the end and touch it to the aluminum housing around the alternator... turn on the key (push it down)

    check your red light. If it goes on you need a new alternator, supposedly...

    good luck.

    OM.

    Oh, I should add that I already have replaced my diode. :|

  3. #3
    On the Road APEXERIC's Avatar
    Join Date
    Aug 2005
    Location
    Northeast PA
    Posts
    59
    Thank you for the advise. I will try that sequence tomorrow.

  4. #4
    Loose Cannon flash412's Avatar
    Join Date
    Apr 2003
    Location
    Northern Colorado
    Posts
    1,597
    Quote Originally Posted by OscarMayer
    ...So then I took off the little blue wire from the plastic unit on front of the alternator at the 12 o'clock position... expose some of the metal at the end and touch it to the aluminum housing around the alternator... turn on the key (push it down) check your red light. If it goes on you need a new alternator, supposedly...
    If your alternator ROTOR is shot, the charge light will not glow with a stopped engine. You don't need a whole new alternator, just a rotor. Motorrad Electrik sells rebuilt ones, exchange, for a lot less that the BMW $tealer$hip wants. (And probably faster service, too.)
    Click here for Tales of Motorcycles and Life
    - BMW MOA Lifetime Member #18854

  5. #5
    OscarMayer
    Guest
    Indeed, Yesterday I placed my order for a new rotor. Thanks for the corretion.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •