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yamaha speedo trip fuel gauge

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  • yamaha speedo trip fuel gauge

    i am having trouble with fuel gauge . after problems with corroded wires and removing sensor & gauge , i am not sure wheather i have wires back in correct positions or gauge is faulty . .wires to sensor are blue & blue-white . wires from gauge are black ( 2 no ) red white blue and yellow. the gauge either states a full tank or if i change wires it flashes on first increment . can someone please help. all fixed problem caused by bad contact to loom, thanks
    Last edited by tonytansey; 01-16-2011, 12:47 AM. Reason: problem is now fixed

  • #2
    wire colores.
    red is constant 12V for speedo memory.
    black is ground,yellow is key on 12V,white is US and europe fuel send, white/blue is yamaha fuel send,rarely used outside japan.
    dark blue is back light.
    if this is US market the fuel sender is the 35-250 ohm, can be tested with a standard multimeter.
    roughly 35 ohms float up and about 250 float down.
    if the fuel tank is metal the sender must have a seperate ground and be bonded to the fuel tank.

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