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  1. #1
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    tach only works some time- 1990 gt150

    tach works intermittingly, comes and goes while running. would appreciate some idea what the problem is.

  2. Member
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    #2

    Re: tach only works some time- 1990 gt150 (Rangerpal)

    Strange, I have a 1990 Johnson GT150 that does the same thing ... tach works just fine 98% of the time then all of a sudden it stops?

  3. Member TightLip's Avatar
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    Florence, SC
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    #3

    Re: tach only works some time- 1990 gt150 (Rangerpal)

    Had the same problem not long ago - replace rectifier - fixed problem. (Is your battery dying?)
    "I see dead people"

  4. Member
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    #4

    Re: tach only works some time- 1990 gt150 (dtaylor52)

    no battery is new.

  5. Member TightLip's Avatar
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    Sep 2006
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    Florence, SC
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    #5

    Re: tach only works some time- 1990 gt150 (Rangerpal)

    watch your volt meter when tach is not working. If it is not working to, replace rectifier
    "I see dead people"

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