V E N G E A N C E M O T O R C Y C L E S O W N E R S M A N U A L
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Vengeance Motorcycles, Mira Loma, CA USA • 866-483-6432 • www.VengeanceMotorcycles.com
© 2003 Vengeance Performance Products, LLC All Rights Reserved • VOM 1st Edition Rev 2.3 06/03
SPEEDOMETER
The speedometer provides a continuous digital reading of the motorcycle's forward speed. The odometer indicates
total miles traveled by the motorcycle since leaving the factory.
CALIBRATION
Your speedometer is calibrated at the factory. If for some reason your speedometer is not functioning properly or is
not indicating the proper speeds you can recalibrate your speedometer in the field. Failure to properly calibrate the
speedometer may cause your odometer mileage to increase very rapidly.
SPEEDOMETER CALIBRATION
The speedometer calibration is done using the function (trip) switch. The speedometer can be calibrated two different
ways.
1. The first method is to place the unit in auto-cal mode and drive exactly one mile (one km for metric).
2. The second method is to place the unit in adjust mode and the speed reading can be moved up or down while
driving.
METHOD 1, AUTOCAL
1. Make sure the key is off so the gauge is not powered.
2. Press and hold the function switch.
3. Turn the key on. With the switch still held, start the bike. The display will show “ -- “.
4. Release the function switch. The display will switch between “AUtO” (auto cal), “AdJ” (adjust), “CYL”(cylinder
select), and “SEt” (shift bar).
5. When “AUtO” is displayed press the function switch. This will place the unit in auto calibration mode.
6. Release the function switch. The speedometer will show “–00.0”.
7. Drive exactly one mile (or 1km). The speedometer display will increase as signal pulses are received from the
speed sensor.
8. Press and release the function switch. The calibration value will be calculated and stored. The gauge will now
restart in normal mode with the new speed calibration.
METHOD 2, ADJUST SPEED
1. Make sure the key is off so the gauge is not powered.
2. Press and hold the function switch.
3. Turn the key on. With the switch still held, start the bike. The display will show “ -- “.
4. Release the function switch. The display will switch between “AUtO” (auto cal), “AdJ” (adjust), “CYL”(cylinder
select), and “SEt” (shift bar).
5. When “AdJ” is displayed press the function switch. This will place the unit in calibration adjustment mode.
6. Release the function switch. The speed display will flash to indicate that it is in the adjust mode. The tachometer
will operate normally.
7. Drive at a known speed. Following another vehicle that is driving at a constant, known speed can do this.
8. Press the function switch. The speed reading will begin increasing until the function switch is released. The next
time the function switch is pressed, the speed reading will begin decreasing until it is released.
9. Once the speedometer is reading correct release the function switch. The new calibration will be saved if no
adjustments are made for 7-10 seconds
WARNING:
NEVER ALTER OR TAMPER WITH VEHICLE'S ODOMETER READING. THIS IS ILLEGAL AND MAY ALSO
PERMANENTLY DAMAGE THE VEHICLE.
WARNING
NEVER TRAVEL AT A SPEED FASTER THAN THE LEGAL SPEED LIMIT. EXCESSIVE SPEED IS NOT ONLY
ILLEGAL, BUT IS UNSAFE AND COULD CAUSE POSSIBLE LOSS OF CONTROL AND SERIOUS INJURY.
