Timing marks

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  • Kingjoel
    Forum Apprentice
    Past Site Supporter
    • May 2017
    • 43
    • Juniata, Ne

    #1

    Timing marks

    I have a 1978 gs 1000. With a timing light on the 1 plug wire the timing mark is on the f 1-4 mark. With the timing light on the 2 plug wire the timing mark is on the T mark. Is this correct?
    Thhanks for any information.
    1978 GS 1000
  • hannibal
    Forum Sage
    • Jun 2015
    • 1033
    • Washington DC

    #2
    T is for TDC. F is for the plug firing. There are separate marks for 1-4 and 2-3.
    Jordan

    1977 Suzuki GS750 (My first bike)
    2000 Kawasaki ZRX1100
    1973 BMW R75/5

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    • Kingjoel
      Forum Apprentice
      Past Site Supporter
      • May 2017
      • 43
      • Juniata, Ne

      #3
      With the timing light on plug wire 2 or 3 should the mark be on the T?
      1978 GS 1000

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