Universal Digital Dual LED Speedometer Tachometer Gas Fuel Gauge for Motorcycle

Red=Positive, Black=Negtive, Green=Tachometer Signal, Yellow=Oil Signal

Tachometer installation and debugging way:Connect the positive and negative pole to power supply correctly.

Turn on the electric door switch, tachometer will display to 0,

and then let the signal line touch the positive pole of power supply.

If the digital display changes, it can work normally.

Connect the signal cable, start the Motorcycle, and then it can display speed.

Fuel gauge installation and debugging ways:Connect the positive and negative pole to power supply correctly.

Turn on the electric door switch, fuel gauge displays a grid of red,

and then connected signal line to the negative pole.

Wait for a while, LED light will all light up slowly, indicating normal operation.

Connect the signal line, fill up, slowly adjust the potentiometer to make all the LED lights on.

When oil runs out, slightly adjust potentiometer so as to make only one red LED light on.

Please note: The original fuel gauge can not be used together