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  1. #1
    THE PLATE MAN JIM'S PERFORMANCE's Avatar
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    problem with pet tach 2100dx

    tach works good to about 6000 rpm's if you go wide open. The tach will to to 8000 rpm's 9000 rpm's and in to the 7000 rpm's it just go's all over the place. Changed the wire with same results. any idea's thanx.


  2. #2
    Hydrotoys's Avatar
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    Is this a new problem?
    You very well could have a spark plug wire breaking down. You could have a bad or RF leaking coil as well.
    Did you "upgrade" your wires lately?

    You could have a bad tach.
    If it's never worked, maybe try more or less wraps.

  3. #3
    THE PLATE MAN JIM'S PERFORMANCE's Avatar
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    just happened tach has been on for 2 years

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