How to change the settings (12/24 hour time, time zone, speed/distance, and fuel sender) on my EmTac Speedometer
To change settings simultaneously hold the set and mode buttons until the display changes (should take 4-5 seconds). This will enter you into the setup menu.
In the setup menu, short press the set button to move between time mode, time zone, units, and fuel mode settings which will be indicated by 1, 2, 3, or 4 on the trip display respectively.
Short press the mode button to select options within each of the four menus which will be displayed on the speed display.
The options for time mode (1 on the trip display) being 12 or 24 hour time. For time zone (2 on the trip display) the number displayed on the speed diplay is the number of hours added to GMT. For 12 hour time that does not distiguish between AM and PM you may select 7 as the offset for eastern time or 6 during daylight savings. For speed units (3 on the trip display) the options are knots, miles per hour, and kilometers per hour which will be indicated on the screen by their respective icon. For fuel mode (4 on the trip display) the speed display will show US for US fuel senders/tanks, EU for European fuel senders/tanks, and YA for Yamaha fuel senders/tanks.
To save and exit settings, once again simultaneously press and hold the set and mode button until the display changes.
How to change/use the trip display
The mode button allows the user to scroll through the following options on the hours display: trip distance, time, current voltage, course over ground and no display.
Only on the trip distance display can the distance be reset to zero by pressing the set button.
Common Issues and FAQs:
What hole size is required for installation?
A 3-3/8" hole is used for installation.
The gauge takes a long time to acquire GPS/display speed:
While the GPS works to acquire a signal the speed will flash 00, this will stop flashing and display the speed once signal is acquired. GPS signal is required to display time and course over ground as well. It is normal for the speedometer to take upwards of 10 minutes to acquire GPS singal on the first time powering up but if installed correctly then it should take less than 5 seconds for every use thereafter. The red wire must be connected to constant +12V for the GPS to quickly acquire signal. If the gauge does not acquire signal try switching it off and on again and wait 10 minutes.
If the problem still persists and all wiring is correct this likely means there is a bad connection with either black (GND) or red (+12V) such that the starting voltage drops too low at the gauge.
How should I wire the gauge?
Wiring should be as simple as matching the wire colors from your harness and control to the wire colors on the gauge. For those running new wires the wire functions are as follows:
Red: +12V GPS backup power (NOT switched power)
Yellow: +12V switched key power
Blue: +12V backlight power
Black: GND
Black-White: GND for fuel sender/tank
Gray: Fuel sender/tank signal