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Thread: K75 Fuel Injector O-rings

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  1. #1
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    K75 Fuel Injector O-rings

    Last time I changed fuel injector o-rings on a 92' K75, I buggered one up by using all three thumbs and used an old one. I didn't order a spare because of the price. ($4+) each for 6, if I remember correctly. Anybody using local (car parts?) suppliers as they must be a standard good quality variety available. I do use almost all OEM parts for obvious reasons until they become ridiculously priced. Charlie

  2. #2
    Brick Pilot der ziegelstein's Avatar
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    http://www.mcmaster.com/#9464k543/=no1gzv

    Lifetime supply for $5.66.

    These are what I used on my K100, realoem says they use the same injector.
    Jim McGill
    '87 K100RS
    '04 R1150RT

  3. #3
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    K75 Fuel Injector O?rings

    Great.Thanks Jim

  4. #4
    Registered User
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    Mr. Injector will also sell you packages of parts - http://www.mrinjectorparts.com/. They're very nice and helpful folks to deal with.
    2000 R1100RT / 1987 K75C (RIP) / Santa Clarita, CA

  5. #5
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    Having ordered thousands of O rings for a large worldwide plastics company for their large plastic injector machines that operate on hi-temp, hi-pressure, hydraulic systems, you can easily find o rings that would work for your bike.

    We most often used Buna-90 (90 durometer made of Buna). They are also sold in buna 70, Viton, and teflon.

    Buna 90 seems best for your purpose. Just make sure you buy the correct size - a little tighter as they can "stretch" a little.

    McMaaster is a great source.

  6. #6
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    Fuel Injector O-rings

    Thanks for taking the time to send that information. Good responses. I suspect more than one person will copy it and save for future references. Charlie

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