How To Test a 3 Phase Regulator/Rectifier
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- čas přidán 10. 07. 2024
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Regulators / Rectifiers play a crucial part in providing DC current to your machine, but when do you know if your rectifier is bad or not? In this video we demonstrate how to test to see if your OEM rectifier/regulator needs replaced. The rectifier part inside the regulator-rectifier takes care of converting the AC-current to the DC-current the battery needs. When looking for new electrical components Rocky Mountain ATV/MC has got you covered.
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![HOW TO TEST A STATOR / WHAT IS A STATOR [step by step] GY6](/img/n.gif)
Saved many customers money by replacing a faulty rectifier vs replacement of "thought bad" stator. Great video
If everyone took a drink everytime he says "regulator rectifier" we would be hammered by the end lol
🥴
heahhh
Excellent video, and very helpful schematic animations. Easy to understand what the test is doing and now I know the problem isn’t my rectifier.
Great simple explanation of how a rectifier works, i'm working on a honda pioneer 700 utv that is only charging 12.3 at idle and 13.3 at 5000 rpm. after watching this video and the one on stator i believe i have a bad rectifier but i'll know more after i perform these test. thank you Rocky Mountain atv.
Wow, , you saved my day, Immensely glad I am, that I came across your video .. almost on the verge of abandoning riding my bike due to battery issues.... why didn't I find you earlier..
Glad it helped you out!
The clearest and best explanation on CZcams thanks
Thanks, thanks a lot.. this much easier explanation.
I have no words to say.
Simple explanation, great video.
Thanks for sharing.
I have seen other do it yourself explain to do it both ways but you added the diagram which makes it all come together now.. thank you
Thank you for this video!! Misdiagnosed my stator as being bad before moving on to testing the regulator/rectifier on my 2016 KTM 500 EXC. Hadn't opened the case up yet and this set of tests confirmed my rectifier/regulator was still good even though I had a bad pin in the plug.
Best video I’ve seen on this subject. Thank you guys!
This was just what I needed and too the point with only the information I needed thank you for a great vidja.
Thanks for your help, I’ve just correctly diagnosed a faulty regulator rectifier on my Polaris ranger 570.
Thanks!! I have 3 out of 4 pins reading 5v like you said. But one reads 9!! Is this why my lights go DIM when i rev the bike?? I have checked the stator ac output and its within spec.
Thanks for doing this!👍
Thanks! This helped loads!
Great graphics, made it easy to follow
Thank you. Best tutorial, I just solved my problem and I agree with all the positive reviews. Thanks
Love your simple tutorial 👍
Thank you Sir, great explanation! Much rather know how to test my own equipment than to rely on a friend’s past experiences.
very well done and easy to understand. Thanks
Thanks for the video!
Brilliant video, well done on explaining this so well
you explained very simply and the diagram is very use full to understand about how to work regulator rectifier .thanks
Thanks for watching, Kasun! Glad it helped out.
Brilliant video, looks like my bikes problem isn't the rectifier but at least that's one thing crossed off the list...thanks for the tuition
great One ..excellent Tuto ..easy to understand - easy to find the fault
Thanks *David SIM!*
Good explanations.
Thank you.
I'm from in the Philippines I am a motorbike mechanic good job sir
Excellent, excellent, excellent! Thank you!
Hey! Thanks for the video I have done the test on the rectifier and the stator. Both the stator and the rectifier pass the tests. Putting a voltmeter on my battery and getting the rpm up to 5k like stated in your other videos you have posted the battery voltage does not fluctuate at all. I also disconnected the red wire from the starter solenoid and tested the voltage coming from it with the engine running and it was very erratic going anywhere from 12 to 14.5 volts but as soon as I reconnect it back to the starter solenoid it basically flatlines and there is no change in battery voltage. Any help would be greatly appreciated thank you!
The best simpl and clear explained regulator opertion system.
Thank you so much,
Glad you liked it. Thanks for the feedback and for watching!
Great work
Had lack of a harness and this will help get things plugged in
The best description and explanation of testing a reg I've seen yet.
Awesome glad it helped out!
If only there was a good wiring diagram and specifications from the manufacturer we could actually know what it should read. Lab scope pattern. NO way. they have them but would never share them with the public to help repair their products. Thank you Rocky for all you do for the general public. I find all the instructions you give are very accurate. Electronics is my specialty but without known good specs and patterns it's all guessing!
really clear explained...the best thank you
Glad it helped out! Thanks for checking out our videos!
@@rmatvmc are their any fuses that would keep the battery from charging? Question. Should a condenser on a ohms meter read 00.0 or 1?
Brilliantly explained and demonstrated. Love people doing great job. Thank you.
Thanks for the explanation. I just did the tests on my 3 phase rectifier. Wires: I have 3 yellows, a black, a brown and a light brown with a red trace. I had thought that the light brown with red trace was positive but when I do this I get no reading between it and the 3 yellows. If I use the brown I get a consistent reading between it and all 3 yellows. Does that mean my positive is the three brown and the light brown with red is my neutral?
Nice work folks. While going through your steps to do a dynamic stator test my stator performed just as you explained for a three phase stator. AC voltages at example RPM's. The thing that left me stumped was my Shop Manual states that an AC voltage reading should be between 10 and 12 VAC. Not giving any engine speed. At idle it is producing 17 VAC. Increased engine speeds also increased VAC. Should I assume this as a typo and direct my attention towards the rectifier? This is on a 2005 Bombardier Outlander 330 HO 4x4.
I got the same year of impala up here in Sturgis s.d
I’m going to switch to a hi output alt
Great video btw, love to see more of them
Well explained and to the point
My girlfriend liked it to
Ttul
Great video as well
hi great video. thanks for sharing. the lights on my bike are pulsing, tail light ,headlight and neutral switch. would a faulty regulator/rectifier cause this 🤔
Great video....simple and to the point. Exactly what I was after. Thanks.
great showed illustration how it works 👍👏👏
:) . Clear and consice vids . Question: 2004 Yamaha YFM4FA . Charging @ 17.50 ~ 18 volts. Specs say 14.1 ~ 14.9 v . When doing a diode test get 623 ~ 630 on both + & - sides. No OLs.
What should these readings be ? ( Manufactuer/ Model... Shindengen/SH640E) Thanks
Hi many Thks four your excellent video I have a scooter Piaggio 2T other when I drive same one tell me my rear light is blinking after 2 days all lights front and rear blow also when I drive in full throttle the scooter same times cut down the speed what you think is the regulator voltage have same damage my regulator is 8 pin thank you very very much appreciate
Thank you for your video it’s very interesting and helpful
Glad it was helpful!
thnx for sharing this video .
Can this test be done on a sensitive ohms setting. On the 200k I get indications that it is allowing current one way and not the other way for the positive and negative
Hello Rocky. Can you tell me how to check single-phase ? have husky 250 2016, problem with charging, 13,5V on the battery, check all(all is same manual) cant find problem, may be can you help me.
Excellent MERCI 👍
Nice job..
thank you.. appreciate it..
Hi, Thank you for your site. I have a 2001 Yamaha Vstar 1100. Tested a (NEW) rectifier bench test was OK. Ran engine to 3000RPM Volts stayed a 14.4 excellent. However, when i rode the bike, voltage jumped to 15.7? Previously I found the "OLD" battery overcharged swelled up and blown, tested the old rectifier , at 3000RPM jumped to 19+volts, i replaced the rectifier with the a NEW one and NEW battery.. Problem listed above. what tests can I perform to find overcharging, Thank You
Great video. Love the circuit flow illustration. But I cannot find your video on how to test stator. Could you please show me the link to that video?
This is the best video I've ever watched on how to check regulator/rectifier, thanks!
Thanks *Albert Dacuma.* Were you able to figure out your issue?
Yup! other videos the're just simply talking without any support unlike yours, you have the wiring diagram. More power and God bless!
Good to hear. Thanks for tuning in to our channel!
I want to know if the forward readings should be a similar value on both the positive & negative terminals as mine are double the value on the negative side ?
Hello rocky mountain, can we also verify a 3 phase rr unit by looking at the pins on the plug/ port in the rrunit. Doesn't 3 pin on the rrunit mean 3 phase charging system. I.e the top 3 pins for the battery positive,negative, don't know what the middle pin do, and the bottom two pin for the alternator. Am i right or is there something u can add to it. Thanks
Hi there, I have a triumph street triple r 2011 and am having problems with keeping the battery charged. I did this test - with the positive probe on the negative connection i was getting a reading in the 500's on all pins, but with the negative probe on the positive connection i was getting a reading in the 130's on all pins (note my diode tester shows readings differently, e.g. as 138 not as 0.138). Does this imply the rectifier is the problem? Thanks.
Thax good info
Hello, Thanks for the video. I have checked my rectifier as shown in the video and is found to be in good condition. However, when connected to the stator and the battery, the charging voltage goes over 16V
So, i disconnected the rectifier from the battery and checked the voltage and it reads out in AC..
Can a bad battery damage the rectifier?
STATOR: the voltage from each phase gives out 19V AC and goes upto 60V at 5000rpm so i feel it is good...
Please help
Great Video! I get 910 in my measurements instead of 300-500 as you said, is stg wrong with my regulator because my battery is not charging. I am waiting for your stator video also
I have a Polaris 570. what do you think the normal peak starting current should be?
Thank you. Would this unit cause me to have no power to the switch. When I turn my switch on I get nothing but if I cross selonoid it will start.
Got a new regulator and decided to test before install. Getting 141 reading for positive lead side. Is that ok? Idk what low reading means. My last regulator had high readings and swapped directions. Thank you
this goes for street scooters as well. 150CC and down usually a 1 phase. some 3 phase. I had one go bad on a scooter that showed working correctly until a long drive at night and the volts dropped. was the regulator heating up and maybe a diode or scr going open. great basic test! 6 diodes on 3 phase. getting a service manual for your bike ETC is a big help.
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I know this video has been around for a while but I’m testing the reg Rec on an 02 Ducati monster 750Si.e.
It has 3 yellow wires so sayings it’s 3 phase. On the other plug it’s got 2 red and 2 green.
Should the test be run forward and reverse for each red and green wire across the yellows like this video?
So did the tests off both the + and - sides and they passed. So guessing it’s good.
My reason for testing is a slow drain on the batt. I have had a swollen batt also. I replaced it. I have to put the bike on a charger if I’m not driving every couple days.
I tried an amp test for parasitic draw but it must be so low the meter didn’t see it.
What a pain
This was helpful. My name is Dustin also, wow.
Hello in my atv (access lander 300) in dynamic test on stator show 3.5 acv , 3.5acv and 6.5 acv. The other test is good but not charging the battery. The problem is the stator?
Quick question i have a small 50 cc dirt bike and the bike is set up so if the battery is mising or dead the bike wont start (no spark ) and the Regulator has gone bad and ever since i cant fing a regulator that charges my battery , basically the power is comming to the regulator but nothing comes out and i have tried 3 brand new ones , the regulator has 4 diferent colours of whire , what i'm missing here ?
I am looking for the ohms standards for a 2019 Can Am Outlander. Any Ideas?
Thanks👍
Is there a way to test if the stator is bad by using the wires without having to pull the fly wheel off just to check? My voltage is reading around 18 when giving it throttle I tested the voltage regulator like in the video and it seems to be ok
Thank you for the clear explanation.
11.00 am. Excellent vidio
Was looking for 3 to 5 as you say but got a 6. Is the regulater rectifier bad?
Video is little old but hopefully you still check. I have 2007 V Star 1100 and when first started I get 13.8V at battery. After a few minutes running, I only get 12V or less. I checked stator harness and get over 48V when fast idol so I believe stator is fine. Can rectifier work in start up then stop sending charge to battery?
I have a 3 phase rectifier on my 2014 BMW GS F 800 Adventure. Could you show how to test that one. Thanks
hi the question my regulator has 3 wires (black green and red )i get a reading from the green to the 3 yellow but not from the black to the 3 yellow thanks any help will be much appreciated
When I put the positive lead in the positive side, he gives me a value.. 1950 on the 3 yellow pins. It is faulty?
Hi, Would a broken Rectifier be responsible for the current being drawn from the battery even with the bike switched off?
Have a 07 can am ds250 that lost spark changed the stator .the rectifier. The coil wire brand new battery and plug any idea why this machine has no spark when you crank it over
2014 polaris sportsman 570 - i ran the test as you described and believe i have a bad rectifier. findings - 1. with my mulitmeter negative on the positive battery lead i had .45 reading 2. with my multimeter negative on the negative battery lead it had 1.2 reading. 3. with my multimeter positive on either of the battery leads it had an OL reading. can you confirm this my rectifier is not functioning properly. thanks!
A link straight to the Alt. check would have been handy, I checked the rec/reg and got slightly higher number on my spare e.g 583, 588 and 603.thank you for the excellent vid. on this, cheers.
My 2017 yz450f regulator rectifier has 2 wires coming out of it a red and black one, no matter what ohm setting i put the multimeter on it shows “0L “ but on the other wires that it plugs into “the stator connnection it shows a reading on the “20 ohm” setting.
does that means that could be the cause of my NO SPARK situation , keep in mind this bike doesnt have a battery
Hi. If the values is higher than .5 some are .4 , 1.3 and .9 when I out the black lead. Can you please help to know if that is good?
Does this and the stator stop it from running or no.. I have a 2001 Yamaha worrior 350 and the dude I got it from said that he got it running then he said the stator started smoking. Then the atv stopped running.. I replaced everything one that atv except the stator and was wondering if the stator could stop it from it running.. even got a brand new battery for it.. and it's trying to start but won't.. need help..
What about the relay starter? I thought that the relay starter also played a part on the chargin system. If it's a bad relay starter then the battery can also be drained.
Hey all I got a gsxr 750 the problem I'm having is when the bike is cold starts every single time but when you ride for a bit and gets up to temperature If you stop and got to turn it off again it don't like starting iv changed the battery and starter motor I'm getting 12to 13 volts when off and 14 volts when it's started so power isn't a problem if you let the bike sit for 10 15 min it's starts again it's like something gets hot and don't like it and seems to turn over like a dead battery .anything else I could try thanks
hello i need help if my rading are 0.52 is a sign of broken regulator ?? they are a little bit more than 0.5
If i have 002 is it good cause when i rev the engine the voltage drop to 12.6 to 10-11volt
Does the rectifier deal with power to the headlights?? Can it cause no power to the headlights an high beam indicator??
Does it matter if all the forward bias readings on the positive side are 0.1 when all the readings on the negative side are 0.45? In other words, should the readings be close to the same for both the positive and negative? This is a Honda regulator.
Hi folks. I have a Honda VF750f Interceptor which I am restoring.My issue is this , having got the bike running, after a while I noticed the battery was starting to cook so I did some electrical tests and found that the battery was being charged at 18.5 volts. I did multi meter tests on the alternator and regulator and found the alternator to be fine but the regulator was not. So replacing the regulator and battery solved the problem. the battery is new but I've used a second hand regulator I had, but it works. My problem know is that in running the engine up to temperature to then adjust carb settings I had the seat off of the bike and when I put my hand on the seat rail above the regulator and touched the regulator with my finger and got severely burnt. I now the regulator runs worm but surely not that hot. I noticed that as from standard the regulator is mounted on a stiff plastic board and not on a metal plate which I would have thought would of acted as a heat sink. Should it run this hot , or do you think this is why the previous regulator ended up over charging ? What could you recommend to solves this suspected over heating.
Many thanks, Mike.
Can you replace a 2 phase stater with a 3 phase stator since i have a 3 phase rectifier?
hello, as you have shown, the regulator looks solid but no energy output, no voltage. The stator is newly clung and rugged, the outputs have ~ 50V. Is there another test method? motorhome Ktm duke 390 2016.
My daylight and taillight not working I check the bulbs and fuses everything was fine, but when I hit the pass light button on high beam they would come on.. help please
Hi sir
My question is
When the Burgman 650 bike is running for 2 minutes, it the regulator too hot to touch by hand?
Is this temperature a problem or is it normal?
Where is the regulator/rectifier located on a 150cc scooter exactly? This is my first scooter and it's become abit overbearing when it comes to doing my own repairs. Your help in this matter would be greatly appreciated.
My plug to the rectifier melted so i cut the wire and spliced it ..would that be consider a break in the wire and cause over charged to my battery ?
Awesome