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Yamaha Analog Tach and 703 contol box

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  • Yamaha Analog Tach and 703 contol box

    Could someone please advise how i would hookup a pro series analog tach to a 703 control box. Is there a wiring diagram available showing which harness is required and the color codes used. Thank You. engine is an F70

  • #2
    the pig tail coming off the control box with the red, yellow, green, black wires goes to the tach. yellow is ign or key on power, black is the ground, green is the tach lead, and red is anything you want 12v b+ to. hope this helps.

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    • #3
      Thanks for help

      Thanks just one more question ...do i need a wiring harness?

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