MOPED ARMY

the MB5 should have a little tiny "regulator" under the seat & tank.

https://www.treatland.tv/honda-MB5-MT50-MTX-tiny-lil-voltage-regulator-p/mb5-tiny-voltage-regulator.htm

They're tiny lil diode halfwave rectifiers really. and they don't always last long, probably blew out and your lights are just running the full ac output voltage from the stator

Here’s one I use. Yellow to yellow and brown to ground.

I've used it on a Honda Urban Express (12v), Yamaha Chappy (12v) and Yamaha qt50 (12v). should work fine on an mb5

Need, I'm having the same problem, bulbs. Do you have a Cross reference

Number for that bulb? To avoid dealing the Honda. On my boat can use a Fram oilfiter.... When you're changing 18 gallons of oil, I try to save where I in can, TU..

Not to jack the thread , but , 18 gallons of oil isn't exactly cheap . Why would you skimp by using a crap Fram filter ? I would think that much oil would warrant something like a Wix or better .

They were on sale to get rid of them . They don't have to put good filters on sale because they sell themselves .

And , everyone has their tuna boat with maintenance and all the associated fees .

I simply wondered why anyone would expect use a 5 dollar insurance policy to protect a lifestyle investment .

Heck , you probably spend more on oil for your 'ped .

Fram or Wix ... If you do less than 10 minutes of homework you'll see the Wix is simply a much higher quality filter .

You need the rectifier.

Regulator limits the charge.

Thanks Jack,

I appreciate your help.

I guess I'm still stuck not knowing how to test the rectifier.

And if the rectifier is what causes the headlight to blow out, why didn't the new one fix the problem.

I bought the regulator that was recommended but do not want to blow it out also if the rectifier is not working.

I'm just thinking out loud here.