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Thread: Things I need to address...

  1. #1
    Barback King rapiddog's Avatar
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    Question Things I need to address...

    1981 R100RS

    O.K., bike is up and running, very strong I must say.

    I have a few items I need to address, so I'm up for insights.

    1.) Speedo kicks over and pinned if I go over an indicated 65mph. Odd. Has a new cable.

    2.) Voltmeter jumps around on the + side, and pins itself as well.

    3.) Charging light remains on oh so very dimly even at cruising speed.
    The only time I ever saw this on my '78 /7 was when the rotor was going south.
    The alternator looks pretty aged I'll admit. Not really ready to throw $500 for an upgrade as I'm not sure how long I'll keep the bike.

    I haven't done the upper fairing part of the bike, replacing windshied, and taking a look at wiring, etc.

    I could use some procedure here in where to start...
    "...the burble of my exhaust unwound like a long cord behind me. Soon my speed snapped it, and I heard only the cry of the wind...." Larry of Arubia

  2. #2
    Registered User
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    2) Ignore or replace with superior aftermarket. Those voltmeters were notoriously inaccurate. I was told by Master Tech that the "approved" fix involved electrical tape, applied to the face.
    Ride Safe, Ride Lots

  3. #3
    Barback King rapiddog's Avatar
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    Talking

    ...well that's easy enuff...
    "...the burble of my exhaust unwound like a long cord behind me. Soon my speed snapped it, and I heard only the cry of the wind...." Larry of Arubia

  4. #4
    Registered User toooldtocare's Avatar
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    Quote Originally Posted by bikerfish1100 View Post
    2) Ignore or replace with superior aftermarket. Those voltmeters were notoriously inaccurate. I was told by Master Tech that the "approved" fix involved electrical tape, applied to the face.
    Actually I find my voltmeter handy. When the turn signals are on it swings back and forth like someone waving their hands. This reminds me to turn off the turn signals when not needed, sort of like this guy.

  5. #5
    Luddite Looney wecm31's Avatar
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    Here is a direct non-OEM replacement.

    Part number is 332103, about $25 online.
    My original one was getting sticky and kinda flaky,
    which according to Snowbum is the end of the line.

    I like having it to keep an eye on personally....
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    Last edited by wecm31; 01-10-2011 at 04:30 PM. Reason: add #
    Gerald P
    The last thing I want to be is just like everyone else...
    1985 R80RT
    1969 Sport Fury Convertible

  6. #6
    Barback King rapiddog's Avatar
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    Quote Originally Posted by wecm31 View Post
    Here is a direct non-OEM replacement.

    Part number is 332103, about $25 online.
    My original one was getting sticky and kinda flaky,
    which according to Snowbum is the end of the line.

    I like having it to keep an eye on personally....
    I'm checking these out. So it has the leads and the same light bulb insert in the back? Same depth gauge?
    "...the burble of my exhaust unwound like a long cord behind me. Soon my speed snapped it, and I heard only the cry of the wind...." Larry of Arubia

  7. #7
    Luddite Looney wecm31's Avatar
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    Quote Originally Posted by RAPIDDOG View Post
    So it has the leads and the same light bulb insert in the back?
    Not quite.... It was a few months back that I installed the VDO on my bike, the exact details escape me. It does not use the light bulb insert, I did fabricate a connector wire to bring the bulb feed to the light terminal. I had to splice that onto the bulb wire and cut off the original bulb holder. IIRC, it has three (4?) male spade lugs on the back; +12, gnd, light, possibly a ground for the light as well? I seem to recall putting a short jumper to connect light ground to meter ground, cuz' the original bulb holder grounded to the meter case. The mounting bracket was a little different, but all fits perfectly, no issues for depth in my dash.

    A bit of McGyvering, but all in all a good replacement.

    Here's a link to a wiring diagram...
    http://www.egauges.com/pdf/vdo/0-515-012-068.pdf
    Last edited by wecm31; 01-14-2011 at 04:41 AM. Reason: clarification, added link
    Gerald P
    The last thing I want to be is just like everyone else...
    1985 R80RT
    1969 Sport Fury Convertible

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