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Thread: concensus on R1100 spark plugs choice

  1. #1
    Sufferin Boothead
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    concensus on R1100 spark plugs choice

    After all that is written on what spark plug the R1100's should have to perform best, it seems to have come down to Autolite 3923, Autolite 3923 platinum or Bosch 4417.
    I'm favouring the platinum but what do you recommend?

  2. #2
    Quote Originally Posted by Sufferin_Boothead View Post
    After all that is written on what spark plug the R1100's should have to perform best, it seems to have come down to Autolite 3923, Autolite 3923 platinum or Bosch 4417.
    I'm favouring the platinum but what do you recommend?
    I agree - 3923 Platinum
    Paul Glaves - "Big Bend", Texas U.S.A
    "The greatest challenge to any thinker is stating the problem in a way that will allow a solution." - Bertrand Russell
    http://web.bigbend.net/~glaves/

  3. #3
    MOA #24991 Pauls1150's Avatar
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    +1 ... Ap3923
    Last edited by Pauls1150; 10-27-2017 at 04:01 PM.

  4. #4
    Bert Remington bertremington's Avatar
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    Exclamation APP3923 specifically

    The APP3923 is dual-platinum designed for DISs like the 1100s'.
    2000 R1100RT

  5. #5
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    The 3923 Platinum work great. Last about 12k. Better choice is the 3923 IR (XP3923). They last about 60k.

  6. #6
    MOA #24991 Pauls1150's Avatar
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    But there are discussions about whether iridium is any better than platinum... another oil thread...

  7. #7
    Registered User GTRider's Avatar
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    I used to buy 3923 copper for $.99 each on special at Autozone or OReilly and just replace them at every 12k service. Platinums are around $3 each and donít seem to go on sale often, Iridiums around $5-6 each and have never seen them on sale. Personally, Iíd never run a plug to 30k miles (platinum) or 100k miles (iridium) when for a buck or two apiece I can have new plugs at every 12k service...


    Best,
    DG
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  8. #8
    Sufferin Boothead
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    Wow, if you live in the states, count your blessings on the price of plugs. In Canada a double platinum is $9 each and iridium is $12. So what gap would you recommend for a 1995 1100gs?

  9. #9
    Quote Originally Posted by Sufferin_Boothead View Post
    Wow, if you live in the states, count your blessings on the price of plugs. In Canada a double platinum is $9 each and iridium is $12. So what gap would you recommend for a 1995 1100gs?
    Indeed, but in the US the OEM FR6DDC plugs from a dealership have a list price of $15.50 each.
    Paul Glaves - "Big Bend", Texas U.S.A
    "The greatest challenge to any thinker is stating the problem in a way that will allow a solution." - Bertrand Russell
    http://web.bigbend.net/~glaves/

  10. #10
    MOA #24991 Pauls1150's Avatar
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    Gap them to 0.031"

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