I have a 2002 Hayabusa I just purchased 4600 miles . Previous owner says the low beam had to be replaced a few times. I replaced the bulb and battery last Saturday rode the bike once and the low beam popped. I multimeter on the battery the voltage stayed consistent at 13.8 at 5000 rpm with lights blinkers, switching from high beam to low beam it jumped around but never above 14.0 or below 13.0. At idle it would intermittently spike to 16.5 – 17.00 volts for a few seconds. Is this my problem? Any recommendations on replacement Parts? Voltage regulator? Any options or factory only?