How to wire a GY6 scooter regulator / rectifier and how it all works (Part 3 the regulator)

[truthseekers666]

Heres how it works. Red is 12 volt for charge. Test the alternator in AC only mode and rev the bike. It will go up in volts dramatically and drop when not revved. This will be on two wires going into the regulator - dont test by going AC wires to earth as this dumps the power from the alternator to your chassis. Test across say the white and green or the other. The final wire is probably a sense tester and isnt needed. I imagine the regulator is neagtive earthed so yes the red + and the metal -.

[islandminisunlimited]

Hi, I did a test on my regulator and the reading are different i have on my red wire 14.8 DC Volts on my yellow 13.00/14.00 DC Volts, white 24.00/26.00 DC Volts and on the green -0.0034 DC Volts this is with the scooter on. Does this mean i have a blown Regulator? Cause i have completely no electrical power on my scooter no lights, brake light, horn and gages. Please help me

[truthseekers666]

@islandminisunlimited Also the final wire may be the magnetic field supply for the alternator. Without this connected you will get zero AC when revving. This only applies if you have a field powered alternator. If you have a fixed magnet powered altternator then it will supply power even if that wire is not present.

[JIMMYSBMXERS]

you haven't a clue ha ha

[MrJayVal]

hi, where is the yellow wire connected? and why is that everytime i turn on the headlight, my engine stops and when i rev it, the muffler blows? what do you think is the problem?

[londonTown1989]

hi, im not sure if im having a problem with my regualtor but i changed my front light on my bike, started it up and now i have no lights indicators and brake light work fine, no front or back light or horn, i have checked all the wires everything ok,ever tryed the old light and still nothing, allso now when i start the bike it just idles and backfires, do u think it could be the regulators gone

[MsGengler]

hola por favor aslo en español

[firemanntomm]

Hello...a little off topic, but I was looking at the city scene in the background, and it looks very nice...clean, palm trees, fairly quiet...what city is that? Thanks much!

[serpentza]

@firemanntomm It's Shenzhen in Southern China (right next to Hong Kong) :)

[azizhousecallz]

2011 Jonway mc 250

Battery not charging so i check the system.

The reg/rec is working and sending 13.4 to 14.5 dc volt from its side of the plug. Now here is the problem: The battery side of the plug should be reading the battery (hot at all times) 12.5 to 12.8 but the wire in the plug from the battery side is dead volt meter shows 0.

So I know if the battery volts are not coming from the battery then they charging volts cant be getting to the battery from the other end. Help!

[MrMrtiki]

Thanks you solved a problem with another motor that I was working on should I use an ALt. or use the stator from motor all I need is a shunt terminal that is an AC reg . converter .

[tsdonahue8]

Been having problems with my regulator  ,the red and white wire is oposite on mine think they keep sending me the wrong regulator, ever seen this if so how to know witch regulator to order or maybe you have a wiring digram.

[Tools41]

hey i have a 110cc, i have everything wired right and it only turns over when it wants..

The engine will start and shut off in like 10 seconds or more then the solenoid starts clicking again!

""mind you'' i also just put a brandnew solenoid on the bike thinking that thats what the problem was ..

But noooo lmao, If you can help me out let me know

[boxerSubaru]

i have a 49 cc suzuki hi-up scooter. it was totaled when i first bought it and i rebuilt the entire engine myself.. can you tell me whether I can use the voltage regulator of the scooter to charge any sealed lead acid battery out of the scooter, coz i'm not sure if i can.. will it cut the charge if the battery gets charged? i want to connect the two AC outlets of a 10 W transformer to the two pins coming from the scooter magneto, and the DC outlets from the regulator going to the battery.

[pet6171]

hello there, I like the way you have wired you regualtor, I have a blown regulator due to me jump starting it with my wifes car resulting in my scoot blowning fuses even with out the ignition on. anyway I am having a hell of a time trying to get a replacement, would any 5 wire regulator work, if so how would I know what wires would connect where on the new reg?

[serpentza]

@pet6171 it should work, I'll try and find a 5 wire to hook up to my gy6 here and test it out

[idusclothing]

i dont have a scooter, but you answered sooo many questions!

thanks!

[serpentza]

@idusclothing glad I could help

[Mr2010gartman]

hi good vids u got, i got a problem with my peugeot speedfight 2 100cc moped, i got a new battery for it and charged it and the lights are still dim, would this be the regulater or?

[serpentza]

@Mr2010gartman you say your lights are dim? Is this with a fully charged battery? Have you connected a muli-meter to your battery and revved the motor?

[Mr2010gartman]

@serpentza hi i got it fixed thanks, it was the regulater that was not charging the batt up 

[bigwill19591]

can you use a 5pin regulator in the place of a 4pin regulator,and how you do it

[serpentza]

@bigwill19591 I'm sure you can, I don't have one lying around to try :P

[bigwill19591]

my bike keep blowing headlight bubls,and marker lights.change stator i was told the regulator could be bad.when useing a volt meter it's reading is all over the place.need help

[chrilla1980]

@bigwill19591 It´s a broken regulator yes.

[Kulies4Life]

where does the green and yellow wire go to??

[poatpond]

good video it solved my problem thanks

[den331]

thank you very much ser according to the dealer of kymco the stator of my scooter rated @ 4amps output and my 2 sets of HID has 6 Amps Draw is this the reason that's why i'm draining my battery? thanks

and happy holiday : )

[den331]

hello ser serpentza do you know ho much amps output from the stor of the 125cc gy6 kymco scooter engine? because my 2 sets of HID lights is draining my battery all i know is 2 sets running is 6 amps thanks in advance

[serpentza]

I'm not sure, but I can go check sometime this week (a little busy with the holidays), one thing I know is that when you're connecting up a high powered light, it's a good idea to connect a resistor to the circuit. I'll try and figure it out for you.

[scott61871]

The Video helped a lot. I was not sure where I should touch to get my reading so that helped. When I get home - I'm at work watching this on my cash register because I couldn't wait - I will check the regulator. I do have mine fused... and yes, my magnito is working fine.

Like I said... you now have a place to crash if you're ever in Las Vegas. Thanks again.

Scott

[serpentza]

Thanks, I'm just glad I could help, let me know if you're still having problems.

[pjvenda]

It's a simple system, really. The alternator produces one (two wires) or three (three wires) phases of AC voltage. All these wires go into the reg/rec. DC voltage may be picked up in any of the alternator wires, but by coincidence/luck/alternator malfunction only! The way to measure if the alternator is working is by measuring the AC voltage between each of the wires coming from it (not necessarily with the common ground).

[pjvenda]

The reg/rec takes those 1 or 3 AC phases and, with the help of a few transistors, transforms them into one DC output. These produce a bit of heat, hence the heat sink glued to them with thermal paste. The DC output should be only one wire - the other being the common ground.