6 Volt Voltage Regulator All 1968 - 1983 Yamaha CT1 CT2 CT3 175 250 360 400 DT

Description

This Universal Voltage Regulator fits all 1968 - 1983. 1983 Yamaha  CT1 CT2 CT3 175 250 360 400 DT Enduro models, as well as many other makes and models with 6 volt systems.
This voltage regulator limits the maximum amount of voltage to 6V, which is a safe and usable level for your headlight. This is a cheap alternative to  OEM or NOS while still maintaining a high level of quality.
Many Yamaha DT’s generate excess headlight Voltage. This is a design problem, as much a stator (alternator) problem as a light bulb problem.  Light bulbs burn out eventually.  The stator is a copper winding around a laminated core, similar to an automotive alternator or electric motor winding. The big difference is the permanently magnetized rotor, which does regulate the AC Voltage generated.  As the engine revs higher, more AC Voltage is generated, at increasing frequency.  At high RPM, the combination of excess Volts and vibration tends to blow headlights.  Any loose or intermittent AC wiring or switches will generate eneormous Voltage spikes that will blow bulbs.
Yamaha built the DT with no headlight Voltage regulator.  The headlight absorbs stator Voltage, so to keep things simple the stator makes just enough power. At high RPM the headlight is sometimes not quite enough load. As a result the bulb blows.  The headlight circuit is balanced to yield a modest light at idle and low RPM, while giving full brilliance without blowing out at high RPM.
The voltage regulator can be easily installed anywhere between the stator and the headlight. Inside of the headlight fixture is a very common location for installation.
Shipped USPS First Class Mail.