ATV Parts






Dirt Bike Regulator/Rectifiers

Dirt Bike RegulatorDirt bikes use several different types of power systems depending on whether they have an ignition system only, lights, or a full electrical system with a battery.

Motocross style bikes with no lights use a very simple stator consisting of a source coil that provides power to the ignition system. These bikes do not have anything to control the power coming from the stator.

Dirt bikes with lights use a slightly more complex system. The stator still has a source coil to power the ignition system but it also has a lighting coil or winding to provide power to the lights. Often these lights run in AC power using no battery. The power provided by the stator varies with the engine speed. When the engine is running at idle, the lights tend to go slightly dim. Once the throttle is opened, the lights brighten. To prevent the lights from burning out from too much power, an AC regulator is used. Once the voltage reaches a certain point, between 12 and 14 volts, the regulator takes the extra AC power from the power wire and throws it away by sending it to ground which, in the case of a dirt bike, is the frame.

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Dirt-Bike Regulator-RectifierMotorcycles with batteries must convert the AC power from the stator into DC. In order to do this, the power coming from the stator must be converted by a regulator/rectifier. The rectifier actually converts the power from AC to DC, while the regulator keeps the power level (voltage) from going above the 13.8 -14.5 volts needed to power a standard 12 volt battery. It is important that the stator provides more power than needed by the motorcycle so that the battery will stay charged. If the motorcycle uses more power than the stator can provide, the battery will start to drain. This will typically happen if the voltage drops below 13 volts.

Electronicamotos regulator/rectifiers are designed to be direct replacements to original equipment by using stock mounting locations and OEM style connectors. These parts are designed to handle higher power loads than their OEM counterparts.

* It should be noted that when a motorcycle is converted from an AC system to a DC power system, a regulator rectifier is used to replace the AC regulator. The AC regulator should be removed. Often the mounting location must change because a regulator/rectifier is larger than an AC regulator. As with any electrical part, it is important to follow the included directions when installing them. When mounting a regulator/rectifier, especially to a bike with upgraded lighting and stators, these parts will get warm and should be allowed cooling airflow.

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