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no spark 1and 2 cyl

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  • no spark 1and 2 cyl

    I have a f50 tlrb 4 stroke no spark to cyl 1and 2 but spark to 3 and 4 is it cdi or coil problem.

  • #2
    how are you testing spark?
    you MUST test 1&4 and 2&3 at the same time.
    you cannot test spark on individual leads one at a time.
    its a waste spark system.
    the CDI triggers 1&4 and 2&3 in pairs.

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