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Thread: Tachometer repair on '77 R100/7

  1. #1

    Tachometer repair on '77 R100/7

    I am working on a repair to the tachometer on my '77 R100/7 and I would appreciate your help. I heard a rubbing sound the other day when the bike started cold, but the sound went away after warming up. I probably should have disconnected the tach cable, but I didn't. Today the sound occurred again, and eventually the needle stopped moving and the rubbing sound got louder and began to make a rattling sound. I took apart the tach/speedo unit and I noticed that a white plastic gear on a metal rod seems to be damaged on the tachometer. I haven't been able to find this replacement part, and I was wondering if anyone here has experience replacing this. I would rather replace the plastic gear than the whole speedo/tach unit! Thanks in advance for your help.

  2. #2
    Liaison 20774's Avatar
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    Welcome! Check the link in my signature line. Terry Vrla might be a good contact to see what he can do for you.
    Kurt -- Forum Liaison ---> Resources and Links Thread <---
    '78 R100/7 & '69 R69S & '52 R25/2
    mine-ineye-deatheah-pielayah-jooa-kalayus. oolah-minane-hay-meeriah-kal-oyus-algay-a-thaykin', buddy!

  3. #3
    Registered User
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    Overseas Speedometer in Austin Tx does good work.
    Ron

    91 K75RT ABS

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    Registered User m_stock10506's Avatar
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    I highly recommend Terry’s work.
    Michael Stock, Trinity, NC
    R1100RT, R100, R60/6

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    Day Dreaming ... happy wanderer's Avatar
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    Best in the West! Terry repairs our airhead instruments for reasonable rates and does great work.

    Terry Vrla
    776 se 3rd ave
    Hillsboro, Oregon 97123
    USA

    Home: (503) 421-5782
    Email: terryvrla@hotmail.com
    MJM - BeeCeeBeemers Motorcycle Club Vancouver B.C.
    '81 R80G/S, '82 R100RS, '00 R1100RT

  6. #6
    Sir Darby Darryl Cainey's Avatar
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    Terry does excellent work and is reasonable in price!
    Ambassador Emeritus BMW MOA Ontario Canada
    Niagara Riders
    Knights of the Roundel #333
    1977 R100RS, (Retired) 1993 R100GS

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