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'86 Analog Tach Prob. on Pro V 150

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  • '86 Analog Tach Prob. on Pro V 150

    Wondering if the tach gauge is bad or wiring problem. When motor is running needle is bouncing all over all the time, mostly in 5-7000 range. Any thoughts? Would be nice to know what RPMs I'm kicking at!

  • #2
    Sounds like the tach is bad.
    Regards
    Boats.net
    Yamaha Outboard Parts

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    • #3
      Is there a way to test for this?

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      • #4
        You can monitor the ac voltage at green wire at tach with a voltmeter to see if signal voltage is steady.
        Regards
        Boats.net
        Yamaha Outboard Parts

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        • #5
          I'll give it a shot! Thanks

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