headlights really bright and blowing the bulbs

[blue]

try cleaning all the wireing ends with a small piece of sandpapper. the ones going to the regulator.and the stator any wires that has power going out of. After time the wires do get bad.

[skippy]

something i lernt over the years when you disconect contacts put some vasaline on the contacts, it prevents water or corosion.so when disconecting and cleaning put some after.

[Curtis da Cat]

This is absolutely a voltage regulator problem.  Weird thing is that you can unplug your voltage regulator and the headlights will still work.  I never could find the entire diagram but seems like the voltage regulator must inject some sort of opposite voltage based on what that stator is producing to maintain. The voltage at 12 volts.  I have an Agility 125 that started burning out headlights.  After I burned out the second set I hooked a multimeter up and saw that the volts were increasing with the RPMs.  Tested the regulator according to the manual and saw that there was no combination of pins registering resistance.  Installed a new voltage regulator and Bam, everything was measuring right around 12v no matter what the RPMs were.