How to Test Charging System Stator Voltage Regulator any Small Engine (Comprehensive Testing)

[@im2yys4u81]

The best video I've seen for checking out the charging system.

[@dannyharageonesjr.2024]

I completly agree. I wish everyone would be as explanation as him

[@skkfor]

Many thanks for time vid. Advice from my local mower shop -assumed- my stator was bad, and they were ready to sell me a $195 part. Per your instructions, I tested the stator. It was fine. The issue was the voltage regulator, which was $35 and WAAY easier to replace. Thanks for saving me a LOT of money, time and head-scratching!! Take care, man.

[@billycolwell4263]

And the thing is you would never know if they even changed that part. Because they would have pld ones laying around to show you your "old part". I've seen it happen by marking wires with a sharp in a hidden spot. Crooked mofos. And they mark up parts 100%.

[@carney067]

Great write up bud. Thanks for taking the time to provide this information to the common folks. Need more people like you around

[@somerswoodturning7669]

Thanks very much. I have been recharging my battery with a battery charger after I mow each time or sometimes the mower goes dead before I finish and I have to charge the battery. after watching your video I went out to test it and found the wire from the voltage regulator to the battery was not plugged in. I had already charged the battery so I tested everything as you said before plugging in the wire and everything is working great now. Saved me a bunch of money and did not have to take it in for service. Thanks again.

[@ronldbeal8959]

I like how you went into details on how to check the stator and troubleshoot the wiring. Thanks for the info !

[@bellluna9017]

You're the only one i could find that would actually show how to test the voltage regulator. Everyone else seems like they are part swappers.

[@Mike-su8si]

I am but i used my battery charger and the mower charged it up good in a short bit of mowing time when i hooked it to the mower it was almost dead so it showed me my stuffs working fine

[@gregatkinson7276]

You have not seen many videos then......

[@sartingarage8045]

@gregatkinson7276 Not to sound conceited or anything But send us a link to a better Kawasaki Charging System Video. I'd like to see it. When I say better I'm talking about informational Not quality of Video as this was my very first Video I ever made with over 400k Views

[@keithcunningham3843]

Awesome video, easy to follow. If your battery is not charging, this is the only video you need to watch!! Thanks so much.

[@frankie7508]

Practical. Experienced. Knowledgeable. Slow and clear explanations with illustrations. And then he tells you what's likely to fail. This guy is an excellent electrical mower technician. Absolutely great video, Thank you very much.

[@ArtHeld]

I have now watched 3 videos on these charging systems - this is DEFINITELY the clearest and best. THANK YOU! As soon as it stops raining, I'll go give it a try.

[@sartingarage8045]

Watch Battery Test Video and Watch Ground Test Video Then test for this video Check Battery load and ground before checking charging system as charging system may not give accurate readings on meter if one of those are bad.

[@Maverick4841]

Thank you for taking the time to make this video, you are a tremendous asset to the KZbin community. Hopefully I will be able to use this to troubleshoot why my Scag is wanting to die after a short time mowing. First thing to do is watch your video on checking your battery as I know my is bad.

[@sartingarage8045]

Thank you

[@carollawrence8124]

Thanks so much for doing this video. You went slow enough that I could write things down and draw pictures. lol This helped to diagnose the issue and saving a two hour drive to the mower shop and being without a mower for a month or more. Very helpful and absolutely incredible! Thank you!!!

[@92RB-4]

Excellent job explaining every step. You deserve an award for best instructive video! Really helped me understand one of the most mysterious areas of my lawn mower electrical system.

[@louisbrentnell2551]

I agree with you about his instruction. I know nothing in this area and have no confidence because I know nothing. Excellent instruction that a complete novice can understand. Thanks a bunch.

[@jeffgrahn9505]

Thank you so much for breaking everything down clearly. The easy test towards the end, testing the battery voltage through the 12vDC charging output wire from the regulator caught my break in the wire! You Rock man! Owe you a cold one!

[@hallsweldingservice]

This is my go to video for electrical diagnosis. I have used this several times now and always gets me to a solution. Thanks for making this video. Just subscribed.

[@johnkirkpatrick9692]

For the first time I understand the stator and voltage regulator testing. Thank you SO much.

[@frotosgarage6715]

I was trying to find a video good enough to explain everything to a friend since I couldn't go and do it for him. Good for anyone who doesn't have the experience to know what to check and how.

[@johnpalma7265]

Thanks for uploading and for not shoving your face in front of the camera throughout the whole demostration.

[@SouthernTwitch]

What an awesome informative video!!...I also “thought” it was long winded BUT that’s because people want the quick fix... this was perfect and thank you!!

[@jimwalker8988]

I checked at the local mower shop and they did not know the procedure. you are a great help THANKYOU. GOD BLESS

[@richardzaring6249]

Very good video , but would like to add one more very important electrical tip on the voltage regulator on that Kawasaki engine, is that the 2 screws that hold the voltage regulator to the plastic engine shroud must have a grounding wire going from the engine starter bolt to one of the 2 screws that hold the voltage regulator to the plastic engine shroud in order for the voltage regulator to work properly. The voltage regulator must be grounded, I have seen people not have this wire installed and wonder why their battery isn't charging . Thank you for this great video.

[@chairrider2462]

Great presentation sir! Would like to add that with the stator designed to produce about 30vdc at rpm, no regulator is needed. The diodes will cut the output in half turning it into DC and that is enough voltage for a good battery charge while cutting grass! That's why you get14-15 volts back to the battery. With the resistance losses thru that thin wire the battery will see about 14vdc, which is close to ideal. Old mechanic here. Helping a neighbor with this later this morning. This is bringing back all the engineering training I had as a young man. Thank you!

[@sartingarage8045]

Stator produces 30 Volt AC The diodes are inside the voltage regulator Changing it to DC

[@chairrider2462]

@@sartingarage8045 YES! And with max output designed to be 15vdc, no regulator is needed. Just the diodes. I bet once you engage the electric PTO for the blades, the voltage drop brings it close to 14 to keep the battery up. I once had an old Royal Enfield motorcycle with a very primitive charging system. It produced three phase AC from the stator. But only two were connected to the system. That output ran thru a diode board to keep the battery up. Part of that output, before the diode board, ran to the headlamp. So the headlamp would get really bright as you revved up and would decrease at idle. Kept the battery well charged too. If a stator coil burned out, you could switch it over to the unused coil to get the bike home, then order a new stator. With the battery only powering the ignition and running lamps, it mostly took care of itself. (Bike was kick start only) An ingenious and basic charging system. That was why the old bikes all came with an amp meter on the dash. So you knew if the output was OK.

[@opinionsvary3132]

Cheers from Australia mate... We have reg problem on our Ferris Z 1500. Good clear thorough vid mate. Thanks for your time.

[@jamulAK]

Thank you for a very complete guide to diagnosing these problems. My battery was bad and you saved me a lot of time and money. I was originally thinking my stator or regulator was bad, but your video pointed me to the battery. I finished mowing, rather than replacing parts that were working.

[@robduffy9879]

Thanks for a in-depth troubleshooting video on solving this type of common problem . Great job again from Sartin Garage!

[@billschmidt3282]

Thank you for your time and a first rate video...thanks for taking your time for those like me are not electrically inclined!

[@fiftyhunnug]

You can also check the stator by unplugging the double wire connector on the voltage regulator and setting your multimeter to Ohms. Then testing between the two pins in the connector. You should get a reading of OFL (or 0.00). Easy way to check the insulation breakdown of the stator. (and the most common problem with them.

[@efraingarciaescalante2824]

Thank you. So on either way to check the stator, what's the cause of bad stator?😢😢

[@sartingarage8045]

@efraingarciaescalante2824 It's very rare that a stator on Kawasaki goes bad. When they do it's usually just old and worn out. When engines stop charging , usually it's Voltage Regulator, Bad Ground to Regulator, Bad Key Switch, or Short in wiring.

[@efraingarciaescalante2824]

@sartingarage8045 thank you for your answer. My mower scag cheetah 61" with FX921V kawasaki engine is like 03 years old. I disconnect the cable from the stator as described on the video and it reads just 14 volts at full throttle. Engine off and just key switch open and it reads more than 12 volts. Than l run the engine at full throttle and using the multimeter to check the battery and it reads less than 12 volts. So l'm not sure if is the regulator or the stator. Thank you. 🙋‍♂️

[@sartingarage8045]

@efraingarciaescalante2824 With the Stator Disconnected from Voltage Regulator and engine Off There should be No Voltage out of 2 wires from Stator. The Flywheel has to be turning in order for Stator to produce AC current. If there is power to the 2 Stator wires. I would do a Ohm test on each one of the two Stator wires to Ground. So one lead in one wire Other lead to ground Check both Wires this way Everything turned off. It sounds if you have battery voltage going straight to ground and Stator is shorted out to ground which will show battery Voltage on 2 Stator wires.

[@efraingarciaescalante2824]

@sartingarage8045 hi, good afternoon. Thank you for your response. This morning I was working on it and yes what? I removed the control panel and on the back of the key switch one cable at the end close to the connector was fried and the connector of the key switch is loose because became melted inside l guess. I called to scag dealer and l asked what's the probably cause and they said, probably a losses cable but not sign of loose cable. Not sure but once done with the replacement of the key switch we will see how it works. Thank you!!!🙋‍♂️🙋‍♂️🙋‍♂️🙋‍♂️

[@lizzy9495]

Best video I've seen on checking the charging system. I have a 2002 John Deere GX335 lawn tractor and information on it and parts for it are very scarce and come very dear. This video made it easy to fix both this one and my other lawn mower and this is the very first time I've run into a charging issue. You're absolutely correct about charging the battery but I believe this happened because my husband was boosting it with the car, which I didn't know. On an aside not all of us out here, are guys. Some of us are gals because if I left it to up my better half, John Deere would be a lot richer. He's just not all that mechanically inclined and would rather make dinner and I just happened to grow up with 5 brothers. Thanks again.

[@adrianbalentine1520]

Just wanted to thank you for your help. Running good no problems today with mower.

[@3BricksHigher]

My Ariens Edge deck stopped cutting. I watched this video and went out to check the stator and voltage regulator. Found that the wire that runs to the battery had slipped off. I appreciate this tutorial. You made it easy to find the problem and saved me a headache lol

[@threeboyslawncare]

Thanks so much for your very helpful and informative video. Traced my charging problem right back to a blown fuse and was able to rule out a bad stator or regulator.

[@DavidAbella]

Thank you sir, I just got a job maintaining equipment from a landscaping company and this problem is extremely common thank you again, God bless you. Cheers 🍻 from Calgary Alberta.

[@kennethfannin8707]

exactly what i need to check ,,, very good description ,,ill try it tomorrow .if i can get it ill have to send for you ;)

[@mikehuntinggeardeals5985]

Great video! I watched at 1.5x because we talk a little slow in the South.

[@dclk535]

One the BEST videos I have ever seen on You Tube. Very informative, Thanks

[@rcflyer2006]

My tractor D110 kept blowing headlights. I tried diffferent Light socket, Different circuit. When I Reved the engine tractor blew bulbs while reading 14.1 volts. I even called a dealer. Your comment stating that battery voltage must be present for proper charging operation saved the day. I was using a battery pack to start tractor. I put a new battery in. End of problem. Thank you so much. I used a jumper pack to start tractor to make it harder to steal.

[@dakaptain69]

Nice step by step video! Great closeups and easy to follow. Keep up the nice work. Thanks a bunch

[@dannybailey6181]

He covered all the bases to where I could understand it. Good video. Thanks.

[@charliejenkerson8738]

Thanks so much for posting your video you go through everything slowly so us dummies can understand I can't thank you enough

[@rebeccapugh1466]

Lightweight is good and what did I use it for it’s a lawnmower kzbin.infoUgkxTPN04aT-Qdjr_KS3ql7ng8wnU3wwsCqk also recommend Yes it is lightweight so hence not as robust as our old one. But if you take care it does the job really well.

[@sartingarage8045]

@rebeccapugh1466 Do you have a question about a Electric Rake or Dethatcher

[@MikeGoodman-r1o]

You mentioned checking current while your meter was on volts. How can you do that?

[@wildbillinzero]

Thanks for this very thorough video! You did a great job explaining it so everyone can understand. Now off to check my mower!

[@JimmyJohn60]

Appreciate your video. You did a hell of a job making it easy to understand. Will definitely subscribe.

[@djdex87]

Thanks for this video. I'm living in Poland and own a John Deere. It's a pain to service this USA made mower in Europe so I have to do it on my own. You helped me a lot.

[@sweethomeTN731]

Thanks for this knowledge. This can help with all sorts of things. I'm wondering if this can cause a key switch to go bad or a melted fuse. I don't see any chaffed wires. But I have melted fuse and a bad key switch for sure.

[@sartingarage8045]

For sure... Those key Switches are known for shorting out especially if wrong key or Screwdriver is used to turn the switch, It will eventually wear the contacts in switch and cause a short

[@stashcash44]

Hello, JD 325 , Kohler, charging problem.Battery does not charge while mowing. has electric PTO for deck. battery measures 12.64 volts, stater output 29.3 volts, regulator output 12.39 volts. Key OFF 12.62 volts, key ON 12.54. is key switch bad and the problem? your video is helpful and got me this far.

[@sartingarage8045]

Check voltage regulator base for ground If the base is grounded Replace voltage regulator Here is my video on testing ground kzbin.info/www/bejne/pZi5aJhurZWnkLs

[@kimal4861]

Thank You, very informative. I am curios why regulator do not show voltage when not to attach to battery?

[@sidallen685]

Also many mower manufacturers put a fuse inline from the starter solenoid in between the solenoid and the key switch B+ terminal, my John Deere Z445 has this fuse and it had blown due to the wire from the voltage regulator had shorted.

[@howtovideoswithchris865]

Great video explaining everything accurately everything tested great on my zero turn gravel except the exciter wire going to the voltage regulator I traced it down and found an inline fuse which was blown . I replaced the fuse. Then I tested with out turning the switch on it already had the 12 volts I turned the switch it stayed the same 12 volts. I tested the battery to see if it was charging properly it was over 13 . My concern is that with the voltage regulator being excited with out turning the key at all . Do you think I’m having a problem with the key switch?

[@sartingarage8045]

It's possible Those key Switches are bad for shorting out internally especially if someone has used wrong key or object to turn the switch with. Damages the contacts inside Switch. But here is a Video for testing key switch kzbin.info/www/bejne/qIDUqJVmgMZ7h6s

[@CurtisG-oq5wu]

I just found your channel. Great information. I have never seen a feller talk so fast.

[@sartingarage8045]

It's a southern thing...SLOoooow talk

[@davidruiz5383]

Great information, I want to thank you for sharing. One question, did you say that all tests on the lawn tractor on based on DC voltage and only Stator was AC. Thanks and GOd Bless.

[@sartingarage8045]

Yes everything runs off battery which is DC Stator is only thing that puts out AC Now if mower has No Voltage Regulator the Stator will output DC at connector.

[@davidruiz5383]

Thank you very much and my cub cadet zero turn 50” does have a stator.

[@sartingarage8045]

@davidruiz5383 I guess I didn't explain that good If the Mower has a Stator that connects to a Voltage Regulator The Stator puts out AC to the Voltage Regulator. Voltage Regulator converts back to DC to charge the DC battery. On mowers that Do Not have a Voltage Regulator and only a Stator. The Stator becomes a Alternator. The Stator/Alternator still puts out AC but is converted to DC on the Stator/ Alternator.

[@kentv999]

Great Video - very good explanation of how the charging system works and how to debug a potential failure. I wish I would have found this prior to starting to replacing parts!

[@StephenBellShot]

Thank you very much. You did a great job of explaining everything! Much appreciated!!

[@ulissmast9819]

really helpful...from Argentina

[@wheelanddeal1]

WITHOUT my keyswitch on... my meter read 13V. This was at tested at grounded frame bolt and positive at the DC (unplugged) wire. In the video it says there will NO reading with the keyswitch OFF (16:06 in video). Unfortunately mine does. Meter was set at DC-V 20. Please HELP!!

[@sartingarage8045]

Test your key switch The voltage to that DC wire comes from key switch. I have a video on testing key switch Im assumming your having problems with battery draining while mower not in use. While mower sets for 5 days, battery is dead.

[@wheelanddeal1]

@@sartingarage8045 Actually, I found this problem by accident. My problem that I was trying to solve: not charging during use. I may have multiple issues... I'll keep you posted.

[@juan23775]

Thank you sir for taking time out of your day to educate people on this issue. God bless.

[@Fresh-tw7ev]

OK a I watched all your videos. They are easy to understand and very good. I have JD ZTRak 375 with a Briggs 25hp. The factory issue battery just died 2 weeks ago. So I bought a new Die Hard from auto parts store and placed it into service. I tested it with my Klein MM600 and noticed it reads 12.25 volts after 1.5 hours in service which seems very low to me. This mower’s stator has a 1-wire yellow coming down out of shroud to the voltage regulator and single red going from VR to the battery. I checked stator Voltage output at full throttle and it tested 47 AC VOLTS. I also checked DC Voltage BACK to the battery. THIS TEST SHOWED 12.2V. Then turned motor ON at FULL throttle. THIS TEST SHOWED 12.13V. Then I checked Voltage Regulator ground. THIS TEST SHOWED “OL” on the Klein plus an intermittent beeping and a range of numbers that fluctuated between 2.6 and 10.0. This test never fell below 1.6 with a constant tone sounding. Any ideas on what I should do next? Someone said “check the ground strap” but don’t know where to look for that. Any advice.

[@sartingarage8045]

If you have 47 ac to regulator and only 12.2DC out of regulator and base of regulator has good ground. Replace regulator Test the DC at regulator The 12.2 you are getting is just battery voltage, It is not charging battery Should go to about 14 + volts engine running wide open throttle

[@Fresh-tw7ev]

@@sartingarage8045 ok so I’ll replace the regulator. Was the continuity test of the VR supposed to show “0”?

[@Fresh-tw7ev]

@@sartingarage8045 I should re-state something about the 12.2V test results. That was the red test lead plugged into the red wire battery on the “mower side” and grounded to the chassis. That was not 12.2V coming out of VR going back to battery.

[@sartingarage8045]

Need to check it out of voltage regulator and at battery Voltage may be 14 + right out of regulator But still only 12.2 at battery Which would mean there is a wiring or key switch problem. Another words the voltage regulator maybe putting out correctly, but that voltage is not making it to battery. That DC wire out of voltage regulator usually goes to key Switch then from key Switch to battery positive side of starter solenoid

[@Fresh-tw7ev]

@@sartingarage8045 today I got back to testing the DCV coming out of the voltage regulator red wire that charges the battery… it was all over the place. I couldn’t get a constant reading.

[@NotJustBBQLLC]

I’ve never been so excited to get home from work and test my mower…. I just replaced my battery thinking it was the issue ( as dumb as it sounds I never new a mower had a charging system) yes dumb Well the new battery is already not starting the mower this video is going to help so much Thank you

[@sartingarage8045]

Not Dumb , Just didn't know

[@Mike-su8si]

Maybe it was being grounded out

[@robertwallace5675]

Thank u so much man this was driving me crazy every 2 weeks I was recharging my battery was getting 15.2 ac volts at full throttle 👍

[@polarblue7468]

Yep your video helped! Rather than unnecessarily purchasing this part, that part, another part, the problem persists while frustration continues to grow🤬. Finding the problem in a linear elimination method is a much better idea thank you👍

[@dougsanders6034]

I put a stator and regulator on my opposed twin Briggs and Stratton about 5 years ago. It will charge 14.5 volts reved up, but only 12.6 at idle. The PTO will not enguage at idle , but it usually will if I rev it up. I have used the charging system on the mower to charge the battery a number of times. I don't think my charging system is puuting out as much as it used too. I'm going to check my stator and my regulator like you explained. It has a good battery on it. I checked the ohms on my pto and had 3.2 ohms with my meter set on 200 ohms. It will click on and off with the switch on ,engine off, but if I run it a while it has to be reved up to enguage. I have jumped my mower off a number of times by hooking it to my truck battery, without cranking my truck. I wonder if I may have damaged my regulator on my mower. Thanks for the video.

[@sartingarage8045]

It definitely not good to boost / Jumpstart your mower, Its can be hard on battery and charging System Components. kzbin.info/www/bejne/r2qrpJVurrWYj6c It's probably not good to engage blades at idle either, Even my Husqvarna Zero Turn engaging blades at idle almost stalls the engine. But I'm thinking your meaning your PTO won't engage at all at idle. If your charging 14.5 volts at wot, Then I'm thinking you have a bad connection or wiring somewhere. Not enough voltage getting to PTO Clutch at idle. Disconnect the connector to PTO Clutch Check Voltage at this connector with key in ON position and PTO engaged, Should be real Close to battery Voltage.

[@dougsanders6034]

@@sartingarage8045 Thanks for the help. It seemed to work fine for the first 2-4 years but now even with a good battery it has started doing it. I'll check the voltage on the PTO plug today . Like I stated , It does charge 14.5 wot, but at idle it's only around battery voltage. Thanks again for your helpfull information.

[@boydguie8129]

This was great . Slow and detailed with lot of instructions and data . Very good teaching ! Thanks .

[@markhall3434]

Very nice Video.. Open circuit testing the regulator output.. that read -4.5v (Negative). Not sure what that means, just an observation. I'm trying to use LifePo4 battery in my zero turn, but it charges to much less than an ideal 14V. It's either broke, or I need to figure out a way to crank it up. The voltage regulator circuit inside is hard to find.

[@sartingarage8045]

Where you are getting this -4.5v DC. You need to test this with just key in ON position. Engine Not running. There should be battery voltage to this wire with key in on position. If there is NO battery voltage to this wire. Your problem is key Switch or wiring to key switch or from switch to regulator. This test is in this video

[@SuperFunny65]

At about 11:56, you had approximately -4.5 VDC on the regulator output. Not +4.5 VDC. Your leads were not crossed. Is a negative voltage normal?

[@sartingarage8045]

That is from the voltage regulator Not having battery voltage to it. The voltage regulator needs battery voltage to work correctly or the voltage will not output correctly.

[@jasonlanders9289]

If I don’t have battery voltage at the output wire, rather than trace it, can I just run a new wire from the solenoid to the output wire? Or does it have to be keyed?

[@sartingarage8045]

Has to be keyed Will drain your battery if connected straight to battery. I would test key Switch as this is a common problem for what your having

[@jo2outdoors]

I have a cub cadet with a kawasaki motor. Followed your instructions, I am getting 12+v coming out of the VR while running, not 14+. Changed VR, same thing. However, one thing I noticed is that I have 12v at the bottom wire on VR with the key in the off position. Any ideas? Already tried a new ignition switch. Didn't change anything.

[@sartingarage8045]

@jo2outdoors Voltage to Regulator with Key OFF will most likely be shorted out Key Switch. Unplug connector to key Switch Test the wire again There should be No Voltage Here is link to test key switch kzbin.info/www/bejne/qIDUqJVmgMZ7h6s

[@quillen5150]

Best and easiest info video I’ve seen yet. I’ve been working with my Cub Cadet Super LT 1554 w/ Koehler Command 27 for well over a month trying to track down why the battery goes dead and stops my whole mower before I can finish mowing. I put a new $85 voltage regulator on it cause that’s what I narrowed it down to with your video, but it still done it so I check the DC volts coming out of the VR and got a reading of only 12.77volts which if I’ve followed your instructions correctly, that is not enough to charge my system. So I bought a new VR that was bad I guess?

[@sartingarage8045]

Charging on kohler works the exact same way just wired a bit different. Check ground to regulator base. Also what is your stator output

[@robertward9193]

Can you run the regulator charging wire directly to the battery positive post? I have a a faulty ignition switch I cannot replace the genuine switch, 3swiches I have purchased look the same but do not work

[@sartingarage8045]

No you can't, unless you put a Toggle Switch in line. Will drain Battery down. That's why that wire goes to key Switch to turn on and off. Probably be cheaper and less work to just replace the key switch

[@sartingarage8045]

What is Make and Model # of equipment I will try to help get correct Switch. Also what is the issue you are having Not charging Engine Not turning over

[@robertward9193]

Thanks for the prompt reply, I live in Australia I have tried to buy the genuine switch from the encore agents here in AUS no luck. 3 switches I purchased looked the same , but they kept blowing fuses so I put the old switch back in, every thing works okay . I followed your instructions for checking the stator and regulator all good 👍 the toggle switch from regulator to battery positive is the answer for me. Should I put a fuse in the line? LOVE YOUR WORK

[@coreyregier5546]

I replaced the alternator on a 16hp vangaurd, the old alternator had two spade connectors going to the voltage regulator, I didn't see any diodes. the new alternator has only one wire coming off of it and doesn't have a diode on it so I just plugged it in one of the connections where the old alternator was connected. It does charge the battery, goes up to 14/15v at wot. I should mention the engine shares the battery in the van it's in, it's a carpet cleaning truckmount system. I'm just wondering if I am doing this completely wrong and I might fry something having it set up like this.

[@sartingarage8045]

The altenator/Stator you have installed with only one wire Im pretty sure only produces DC current. So I think what is happening the way you have it hooked up The DC current from the altenator/Stator is just going thru the voltage regulator Which means the voltage regulator isnt doing nothing at all. And usually the stators with only one wire are only couple amps output To what was on it was closer to 15 amp output.

[@paulfleming1782]

I just read your conversation with Roy Cash and found it more interesting than the Bears v. Detroit game yesterday . And we , Chicago , won ! Back to business ; after watching your video , my first exposure to your site , I appreciated your taking the time to go slowly through the process of checking things out . When we don't know what you know , it gives us time to "collect" our thinking so we understand where your going . TREMENDOUS VIDEO ! Hope Roy Cash found the answer for his neighbor . Sounds like someone was Tinkering with things before Roy started working on the unit .

[@scott9478]

Question. My charging fuse is blowing, but when I unplug the voltage regulator it does not blow fuse. When I unplug the harness at regulator and with good fuse I have 12 volts at that wire at regulator. Is the regulator bad? I put in new ignition switch and stator is putting out what it needs AC voltage

[@sartingarage8045]

That's what it sounds like Voltage Regulator is shorted to ground

[@mattdarbro4830]

Wow! Thanks! GX clone on my log splitter was not charging - it's fix now!!

[@timadkins5978]

One the best explanations on you tube!! Bravo sir 👏👏

[@jasondenney4304]

I have a Kyler that’s blowing fuses as soon as fuse touch the prongs. Doesn’t matter if key is on or off.

[@sartingarage8045]

@jasondenney4304 This can be several different things Most Common being Unplug key Switch Connector. Install new fuse If fuse doesn't blow Replace Key Switch

[@boatbuilder1954]

Great Video, I bought a Kohler ch20s motor and on the regulator similar to the one in the video there are 3 terminals and one of the wires coming from inside the cowling is connected to one of the outside terminals but the other wire from inside was just dangling loose. how can I test to make sure which of the 2 other terminals that wire goes to? Thank You!

[@sartingarage8045]

@boatbuilder1954 On a Kohler the wires coming out from under shroud go to the 2 outside terminals on the voltage regulator. The Center Terminal is your output to charge battery. This is my Kohler Charging System Video It's Not as in depth as the Kawasaki Video But it's the same as Kawasaki just the wires connect differently.

[@boatbuilder1954]

@@sartingarage8045 Thank you so very much 😀

[@sartingarage8045]

@boatbuilder1954 Your Welcome Also usually the Voltage Regulator is marked on the terminals. Usually will say AC stamped in terminal on Voltage Regulator. This is where the 2 Stator wires go.

[@boatbuilder1954]

@@sartingarage8045 I watch the kohler video and noticed that there was an actual connector that went on the three terminals. I have the same three terminals but only two wires , no purple wire. There is a purple wire on the other side of the motor but not on the same side as the two wires on the voltage regulator is there another place that the purple wire would attach inside the shroud ?

[@sartingarage8045]

@boatbuilder1954 Sounds like the purple wire is broken under Shroud. I would pull the shroud off.

[@adamaragon1649]

Extreme Thank You your video showed me exactly how to fix my charging system that I messed up while rewiring my kohler engine

[@bdyt]

Thanks man, big help. No batt voltage from key on to output lead of regulator. Followed output lead to connector and there was a fuse holder off of that and fuse was bad. New fuse, got batt voltage with key on to lead.

[@Stomp_It]

Thanks for this instructional video! Very helpful

[@joeysantonastaso2432]

Great video. Only thing is If your not getting the voltage you stated Then you should state what the exact problem is. Stator is bad. Voltage regulator is bad, battery is bad. Switch is bad.. this will greatly help the greenhorns

[@sartingarage8045]

If your testing the stator for Voltage and it doesn't show the correct Voltage you replace the muffler....joke No really Basically what I'm meaning is you can't just test the output on the voltage regulator and if there is NO Voltage or not enough voltage you can't just assume Bad Voltage Regulator The Base of Regulator has to be grounded And there has to be Voltage coming to the Regulator from key Switch before Voltage Regulator will work Correctly. Those 2 things need to be checked before Replacing Voltage Regulator.

[@jcr2147]

What would cause the fuse to blow on the charging system? Sometimes my pto disengages and sometimes it blows the fuse?

[@sartingarage8045]

There is several things that can cause that fuse to blow. If it only blows while pto is engaged. Disconnect pto clutch and run engine and see if fuse still blows. If it won't blow the fuse. Replace the pto clutch

[@Bowtie427]

Where is that located on a bad boy 27hp 2016 kohler engine?

[@sartingarage8045]

@Bowtie427 There usually mounted to the top Shroud on a Kohler

[@leealberts9590]

Do all mowers have Keyed power to the regulator Battery voltage or constant battery voltage to the Regulator? Mine has constant power with key off is that normal on a Cub Cadet

[@sartingarage8045]

Should go off with key. If power stays on , would have constant drain on battery. Most of the time the issue is the key Switch

[@corytaylor9578]

Just a quick question why does the voltage meter show negative volts when hooked to the DC of the regulator

[@sartingarage8045]

Flip the leads

[@corytaylor9578]

@@sartingarage8045 ok thanks and one more thing, when the red wire is plugged into the voltage regulator the mower loses all power like the battery is unplugged. I have a fully charged battery, the stator is giving off 35 volts ac and the voltage regulator when it's not plugged in is giving off 6 volts DC. Thanks for the help!

[@sartingarage8045]

The Voltage Regulator has to have battery voltage going to it for it to work When it's unplugged the battery voltage is not there

[@fellipemnz]

My problem is on those two, what should I do? 6:54

[@sartingarage8045]

On the stator test at 6:54. I assuming No AC Voltage coming out of stator. You have to pull top shroud on engine and remove flywheel. Stator is under flywheel. Usually 2 or 4 bolts

[@nickheshmatpour3347]

Thank you for this informative video. I have a lawn tractor with 17HP Kohler PRO engine (CV490S) that does not charge the battery. Output from the stator is 2.6 Volts AC. I replaced the Stator but still getting the same result. Flywheel magnets look intact. What else could cause this low stator output? Any comments will be appreciated.

[@sartingarage8045]

Are the magnets chipped or broken Or possibly someone has had the magnets come out of flywheel and glued them back in. If they glued them in wrong stator will not output correctly. The magnets are in a push pull pattern Which creates like a pulse to stator

[@nickheshmatpour3347]

@@sartingarage8045 Thank you for responding. Magnets are in their original arrangement from factory. I am going to take it apart again this coming weekend and inspect those magnets very closely. Is it also possible that as they get old they get de-magnetized? thanks again for your response.

[@joseortaliz4473]

very helpful thanks. I am on a kohler motot in a deer g100. totally fried stator so replaced it along with the voltage regulator. now 2 weeks later getting that smoking or burning stator again? now this operator is very careless about not tightening battery connectors. could this be the cause?

[@sartingarage8045]

Yes or the battery is bad and mower is getting jump started causing charging system to overheat. Never good to Jumpstart mower or run it with bad or completely dead battery. I have a video on why Not to use mowers charging system to charge battery.

[@ericminniear8130]

This video was so helpful and easy to understand and very informative on it . Thanks again sir

[@kenporter679]

Helpful video. Do you have a video that covers the empty fuel filter and stalling engine with Kawasaki FX850V

[@sartingarage8045]

I do not..Sorry Check for Vapor locked fuel tank. Possibly Gas tank vent which is built into gas cap. Or pulse line to fuel pump Or faulty fuel pump. How long will engine run before stalling ?

[@kenporter679]

@@sartingarage8045 Not completely stalling out, but starving for fuel. Cuts in an out regularly with empty fuel filter. Installed new fuel pump and larger fuel filter, but not the problem. Checking the Fuel Solenoid this evening.

[@sartingarage8045]

@@kenporter679 Maybe collapsed fuel line somewhere before fuel filter also. I've seen this alot

[@kenporter679]

@@sartingarage8045 Thank you for the help, I will check the lines as well. I will let you know when I diagnose the problem.

[@TomCoker1957]

Thank you. You're pretty good teacher.

[@danbeckley3140]

Should there be a ground wire going to the voltage regulator on the case

[@sartingarage8045]

Only if the Voltage Regulator screws into plastic only. Sometimes there is metel behind the plastic that the screw screws into to hold voltage regulator. You can test to see if Regulator is grounded by meter on Ohms, touch one lead to voltage regulator base and other lead to block or ground on Battery.

[@danbeckley3140]

@@sartingarage8045 I just put a new voltage regulator on and on the d c side I'm only getting 2.78 volts

[@sartingarage8045]

Need to check ground to voltage regulator. Also unplug connector to voltage regulator and on connector side need to check and make sure battery voltage is present on the DC wire in connector with key switch in on position.

[@user-yg4br9ji1n]

I am only 3 minutes into your video and and I don't know what "to boost off the battery" means. At 3:28, it's a rectifier and not a regulator. But if you insist it is, the regulator rectifier converts the AC power into DC power, then regulates the DC power to ensure that the power doesn't go over around 14.5 volts.

[@sartingarage8045]

If you knew what you were doing You wouldn't be on KZbin watching videos on how to do it. If it makes you feel better call it what you want. Voltage Regulator vs Rectifier I know what both are do to I also build Radio Amplifiers. Look your Rectifier up and tell me what the part description is ? Boost a Battery means You have a car with a dead battery. You take a car that has a good battery. Hook jumper cables between both batteries from both vehicles. The car with the good battery engine running gives the car with the dead battery a BOOST Charges the battery after about 10 minutes or so Car or Mower with dead battery will start up

[@jojojeep1]

Hey, you could have the problem my head where it over charge in the battery blew up a sound like a shotgun. At least I know my stater is good. It might be the regulator or the rectum finder.

[@vanguy9780]

very comprehensive and easy to understand

[@adrianbalentine1520]

i have a question i have a kohler 25 hp mower starts up and runs for maybe 10 mins and then it starts to die the rpm's go down to 2900 to 3000 with mower deck on. can cut mower deck off and no change . and it will run that way for maybe 2 min or more and them it will jump back up to 3400 rpms . and it may do this several more times . i have shut it off and let seat for a few minutes and them it will run for and hour with no problems. does this sound like a electrical problem? also love the video!!!!!!

[@sartingarage8045]

It sound as if there is debris in the Carb bowl or water in the fuel. The Carb doesnt get fuel directly from the bottom of the bowl. There is an area for debris and water to get trapped in the bottom of the bowl. Every now and then its either getting debris sucked up in the Carb jets or water. An ignition coil can cause this also, But engine will usually just die and not start back until engine cools off.

[@SuperAirsoft19]

Now what should I do if I have jumped the mower before? What parts do I need to replace?

[@sartingarage8045]

Test before you replace an parts Battery check Stator check Voltage Regulator check Ground to Voltage Regulator Body check But most of the time it will damage Voltage Regulator.

[@catbirdfeeder]

i know you said to START at full throttle to test the stator....but can i start at idle THEN go to full throttle?

[@sartingarage8045]

Yes you can Stator just won't be at full output at idle. As you increase throttle , AC voltage should go up.

[@louiscapasso4448]

Can you check if the system is working by volt testing at the battery at full throttle? Should it read around 14 volts? Thank you.

[@sartingarage8045]

Yes

[@EricFB]

I have a Robyn (subaru) twin engine that came with a 30a rectifier/ reg - 3 post). Its burnt up and replacements are rare and expensive ($150+!) can I toss in a generic 15amp 3 post in it's place? My setup doesn't require any external loads so 15a would be plenty if it will work with the stator. What do you think?

[@sartingarage8045]

Never tried that, But you can also try a Briggs Part # 295924 Voltage Regulator Figuring out how to wire it would be the trick

[@bnhamilton]

I didn't realize it was bad to use the mower to charge the battery. Is it OK to put the battery charger on the battery without disconnect the battery leads?

[@sartingarage8045]

It can destroy the battery especially if the battery is completely dead. Here is a link to video of what it does kzbin.info/www/bejne/r2qrpJVurrWYj6c Yes you can charge battery with battery charger with battery still installed. I just prefer to take it out and clean posts and battery terminals.

[@nickschneider7364]

What's wrong if that wire coming out of the regulator shows voltage ( same as battery) with the key on and off? In your video yours showed 0.00 until keyed.

[@sartingarage8045]

It should show voltage with key on If there is NO voltage test key switch and or wiring

[@nickschneider7364]

@@sartingarage8045 I'm getting voltage with key on and off. In your video you had no voltage until keyed. An I getting some kind of back feed power?

[@sartingarage8045]

Test key switch I believe B to A1 terminal on switch Here is a video to show test for each You need charging kzbin.info/www/bejne/qIDUqJVmgMZ7h6s

[@harveystephens6115]

Fuses at starter sw too in that wire run