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When selecting a tether kill switch, be certain whether you need a Normally Open or a Normally Closed switch. If you are not sure, check the wiring schematic for your machine or contact your dealer.
Normally Open or Normally Closed:
There are two types of electrical systems used on powersports vehicles, thus there are two types of tether kill switch available - Normally Open (NO) and Normally Closed (NC). NO switches are the open type; they work by grounding the primary ignition lead when the tether key is pulled away from the bars. Once the tether key is removed from a NO switch, it will close itself, creating a short to the circuit to which it is wired (this should NOT be used to ground the high voltage signal to the ignition coil as that will seriously damage the ignition). NC switches work the opposite way of NO switches. An NC switch is connected in series with the +12V input to the ignition; when the tether key is removed, it will disconnect - or open the circuit from - the +12V source which powers the ignition. NC switches are typically used on battery-type ignitions which have a RUN/STOP switch that disconnects +12V power, an NC tether switch can be installed in series of these wires.
Ensure that you purchase the correct kill switch! To discover which type of switch you will require, please consult your Service Manual, contact your dealer, use the Switch Testing Procedure below, or consult the Model Compatibility list at bottom. Installing the incorrect switch type can lead to serious damage to the ignition and/or electrical system making the vehicle unusable.
Always disconnect the power supply BEFORE you begin installation. Failing to do this could result in serious damage to the electrical system or serious, even life-threatening, injury to the installer.
Switch Testing Procedure:
This tether kill switch is Normally Closed. If you are unsure whether this is correct for your machine you must perform the following test:
Checking Your Switch Installation:
Before making final wire connections, it is wise to test the tether kill switch to ensure it is working properly.
Model Compatibility (not complete):
(NO) = Normally Open / (NC) = Normally Closed
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WARNING: This product contains chemicals known to the State of California to cause cancer. Wash hands after handling. For more information, go to www.P65Warnings.ca.gov.