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Spark Plug Change - tricky little devils

Discussion in 'Servicing & Maintenance' started by Boxerboy55, Sep 5, 2017.

  1. Richard230

    Richard230 Well-Known Member Contributor

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    I believe the R1150 engine moved to 4 spark plugs around 2004. I owned a 2002, single-plug R1150R and it ran terrible - surging at a steady speed and pinging on premium fuel. However, once an additional plug was stuck at the bottom edge of the combustion chamber, those problems cleared up and the post-2004 models ran much better. My 2007 R1200R had two spark plugs per cylinder and it ran very well, at least as well as the first, early-1990's, R1100 models, before BMW really got crazy with going lean to meet emission regulations.
     
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  2. Boxerboy55

    Boxerboy55 Well-Known Member

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    Indeed. See above :)
     
  3. Richard230

    Richard230 Well-Known Member Contributor

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    I just checked my last Inspection 2 invoice and I got charged for only 2 spark plugs, at $20 USD each. :eek: Not exactly the same price as the NGK spark plug used in my Royal Enfield. :rolleyes: Whatever happened to the days of the $1.25 spark plug? o_O
     
  4. CoOlSlY

    CoOlSlY New Member

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    You know what... I went back to my BMW dealer and he said "Since 2012 all boxer engines have 4 spark plugs" and at first, they didn't wanted to refund 2 of them!!! Finally, looking at the parts manual, they saw there was 2 spark plugs and agreed to make me a refund...
     
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  5. Lee

    Lee Well-Known Member

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    It's a little scary the parts person did not know how many plugs the bike needs.
    Make sure they sold you the correct plug.
    Part number is 12 12 8 532 942
    Looks like this.
    Valve Check (3).JPG

    [​IMG]
     
    Last edited: Sep 30, 2017
  6. Aussie Import

    Aussie Import Well-Known Member

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    Tight arsed pig headed dealer.
     
  7. Richard230

    Richard230 Well-Known Member Contributor

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    What do you know? A BMW that doesn't use a Bosch spark plug. :eek: It took them a long time, but apparently BMW finally learned that if you want a good spark plug you have to go to Japan to find one. ;)
     
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