How to test/replace a magneto

Рет қаралды 827,821

ESRepair

11 жыл бұрын

In this video, WhizKid will show how to test if the Magneto is good or bad and how to replace a typical magneto.

Пікірлер: 205

@tomblum2377 7 жыл бұрын

This was great. Nice to see someone with some common sense tell us how simple this is..

@2001himax 7 жыл бұрын

Thank you, Thank you, Thank you!.I did a lot of work on my riding mower due to it leaking oil. Put it back together and it would start. It ran before. Checked the coil and had it upside down! You said it was marked and it was. Started right up. You saved my butt. Thank you so much. Norman.

@fishman1955 8 жыл бұрын

This is the BEST and SIMPLEST lesson on this subject on KZfaq. I learned more from this than any other video.

@lashondacourtois6509 7 жыл бұрын

, what would cause my motor to overheat really fast

@HARPO1ME 8 жыл бұрын

Well described procedure.Thanks for your time with the video.Thumbs up!

@jamesrichters3517 8 жыл бұрын

Thanks for the tip on setting the flywheel - magneto gap with a business card! Quick and easy and it works!

@wmurray9800 7 жыл бұрын

my brother from another brother you have just shown the best and fastest and most efficient test on checking a maggy she can bite and we don't like biters do we. nice touch on showing position of ground wire `when installing mag thank you for your time nice listening to tec talk the right way bless the wantabees you just saved a few good on you brother take care thanks

@OldSneelock 5 жыл бұрын

Great video. It is a big help. I'm working on a 14.5 OHV with no spark. I pulled the ground wire and still no spark. You confirmed my suspicion. Bad magneto. I always like to check before buying new. Thanks for the help.

@jludtxs 10 жыл бұрын

thanks, very helpful and definitely thumbs up for showing the start with the jumper cables. I hadn't thought of that and was trying to turn key and hold down clutch and reaching for the front of the mower. This was huge.

@ESRepair 10 жыл бұрын

jludstxs, Thank you . Glad that we could help . Whizkid

@gary74988 8 жыл бұрын

great job! i fixed my mower. i appreciate your videos. thank you!!!!

@robotdash6210 7 жыл бұрын

Your suggestion to unplug the kill wire to see if you get spark is what worked for me. I am rewiring a push button start and suddenly it would not run. I spent hours trying to troubleshoot thinking it was a safety switch problem, turns out it was a kill switch grounding problem. Thank you so much.

@639Beaver 10 жыл бұрын

Thank you. One of the best videos I have seen. Very clear and easy to understand.

@ESRepair 10 жыл бұрын

Walter , Thank you for the comment . Whizkid

@Audioelement1 10 жыл бұрын

thanks whizkid! I now have a clue as to what could be the problem with my 94 lawn boy.

@michaelblack3136 5 жыл бұрын

Had my coil upside down, fixed now thanks for the tip.

@rogerunderwood2248 9 жыл бұрын

After I have set my valves on my single cylinder briggs, the mower cranked and ran very good. A couple of weeks later it acts like the valves are needing to be set again. any ideas

@kingvandal 9 жыл бұрын

Wanted to say thanks. Didn't know about the coil upside down. Fixed my ROOKIE mistake.

@rafael55 8 жыл бұрын

I know a easy way to test the magneto. Have somebody hold the spark plug connector, then turn the motor. If they don't move, the magneto is bad.

@LETHALF90 8 жыл бұрын

Is this safe or is it like a joke lol? I'm new to this

@rafael55 8 жыл бұрын

it's both. Don't turn the motor to fast. If the magneto is good the assistant will jump.

@rafael55 8 жыл бұрын

he will jump and insult you.

@oneofthemodels 8 жыл бұрын

it's a joke, the plug will knock you on your ass...never touch it!

@ReneeNme 7 жыл бұрын

+ melodymaker When I was a young kid, my Dad took me and my middle brother out to pick our family some strawberries at a strawberry patch one time and while we were there I told my Dad I had to pee. We were out in the country and the only people there so my Dad told me " Just pee over there outside the patch and onto that wire ". There was this wire running along the patch about 2 feet above the ground along the outside of the patch so I did what he said. ZAP !!! I jumped about 3 feet off of the ground and once I landed I started yelling all sorts of colorful words that an 8 year old shouldn't be saying. He had me piss on a charged electrical wire meant to keep deer out of the strawberry patch, the shit head. lol. Sure wasn't funny at the time though. Wow !!!

@hrdman2luv 10 жыл бұрын

One thing I like about this video, they don't spend 10 minutes explaining what every part is, and another 10 minutes of video disassembling. We know where the screws are. Thanks for a short informative video. Great Job. Love the accent BTW, "I like a way you talk"... (I talk like that too)

@marshawheeler9054 7 жыл бұрын

@yardlimit8695 6 жыл бұрын

the way he talked sounded funny to me but i guess the way i talk would sound funny to him

@josephrutz4248 8 жыл бұрын

Thanks for the college course. Dealing with coil problems. Now I have a plan.....:)

@REVNUMANEWBERN 4 жыл бұрын

Hey Jr,, GREAT point about having the ground terminal on bottom, Thanks

@CarminesRCTipsandTricks 6 жыл бұрын

Awesome, concise explanation!

@RC-Heli835 8 жыл бұрын

Thanks man! I apparently have two bad coils on my welder that went out at the same time. Pretty ironic that they both went at the same time.

@bowmanw1839 9 жыл бұрын

Can you explain how to check a diode in the ground wires on the coils of a v twin? I am only firing on 1 cylinder and it would not start with both coil ground wires connected. I have one ground wire off and mower will start. Both coils put out spark. But running on 1 coil.

@rayrobinson5314 7 жыл бұрын

I was taught more from this video today than any teacher i had in school. Thank you very much, good video.

@timhughessr3285 7 жыл бұрын

I found this to be very useful, Thanks

@JamesrPQ 9 жыл бұрын

This guys got a good southern accent. Good video.

@rexfield8164 8 жыл бұрын

I dearly loved listening to this fellow talk. Even more, I learned considerably more from his instruction than other sites I've accessed. Thanks!

@28ashcat 6 жыл бұрын

Thank you very much. Crap rototiller seems to have same problem. no spark. will check everything you went over.

@guynorth3277 Жыл бұрын

Thank You, that was the information I was looking for.

@ESRepair 11 жыл бұрын

Jack , I don't have a Ford Taurus to do a test on , but I do have a 1993 Oldsmobile Cutlass Ciera that I've been planning on doing a fuel pump test on for the last year but haven't been able to do it yet. Whizkid

@MrJMA2012 9 жыл бұрын

Thanks, very helpful!

@marvinjones8692 6 жыл бұрын

I like that he is smart enough to know that 8mm is the same wrench size of as 5/16" most other poster just same 5/16" good job

@rico4001 7 жыл бұрын

Very well done, Thanks

@williamcampbell9513 7 жыл бұрын

I wish this guy was my neighbor.

@ESRepair 10 жыл бұрын

99carnot, I haven't had much experience with these coil setups , but as I know what a diode does in electrical terms , then I guess that it's there to stop one coil from back feeding into the other one when the kill wire is energized by grounding it out . Whizkid

@GregRuffino 8 жыл бұрын

Nice job man.

@ChuchRT 7 жыл бұрын

Very helpful! Thank you so much!

@doncarr8892 9 жыл бұрын

I would like to know where you get a spark tester with a window. It sounded like you said you got it from a Briar Tester place but I could not understand your Vowels? Please print the name of the seller and print it out so I can understand you! Thanks. Bud.

@backyardsounds 11 жыл бұрын

Another great video, Mr. Fixit! Right on! I dig it, man! Hey, do you think you could make a video on testing a fuel pump on a Ford Taurus (or any in-tank electric fuel pump)?

@rustynuckles3662 7 жыл бұрын

What resistance diode is in the twin?

@paradoxdea Жыл бұрын

Makes sense to me. Love your video.

@sheribarksdale731 4 жыл бұрын

Cnb4How do you change the solenoid on a riding lawnmower how do you change the Silla noise on a riding lawn mower

@swedishkev 4 жыл бұрын

.Hi there, l have a 2 hp Suzuki that is like a new engine, never really used from 89. I just bought it. lt looks like it has an ignition problem. No spark. ....its getting fuel to the carb, but totally no spark. disconnected the stop switch,just in case the fault lied there. No, go. l am scared to start tearing into it. Do you think l need to look at the magneto, points? where the HV wire goes to. l am scared to take apart the pull cord in case its spring-loaded or something. And if l have to take off the flywheel, have l then fucked up the timing. l really am scared to get over my ability but at the same time do not want to pay for a mechanic to look at it. because it will then not be a good buy. Any advice appreciated.

@1234tric 8 жыл бұрын

What's going on , when the coil is hooked to the spark plug, but won't fire, or spark, or start. However, if you ground the coil and crank it, it sparks, - good. The old coil wasn't firing, and I replaced it with a new one, and it's not firing too. It can be started with a key, or a pull rope. It's a self propelled walked behind. It will start sometimes with the pull rope. What's up with that?

@robwahl 5 жыл бұрын

Thanks! Great video!

@williamboyd942 9 жыл бұрын

Well done. Explained good for the do it yourself.

@tebigman65 5 жыл бұрын

I think I met this guy down at Rural King! Nice video!

@victorrios8219 6 жыл бұрын

Very useful and help me a lot to check my coleman powermate generator...

@ricklamm1413 5 жыл бұрын

Do you have an idea of why we would have continuous ignition coil failures on a B & S 19.5? they fail after only 3-4 minutes of run time. We have had 3 failures. Thank you.

@ESRepair 5 жыл бұрын

if it's a magneto it's possible something is shorting out the coil. If it's a regular ignition coil the voltage may be too high.

@ronsbeerreviewstools4361 7 жыл бұрын

A good informative video.

@cliffengerer7251 8 жыл бұрын

Real helpfull thank you !!!

@MoparSmith1 10 жыл бұрын

I learned more from watching this guy today than from CNN.

@ESRepair 10 жыл бұрын

Mopar, Thank you . I haven't learned anything from CNN either . Whizkid

@BenSellens 10 жыл бұрын

ESRepair haven't laughed so much in ages as when you gave yourself a shock !!

@alext9067 10 жыл бұрын

Yes. He explained everything. I feel like i just went to Harvard. Why can't everybody be like him. Damnit.

@mogensskov7536 6 жыл бұрын

Mopar Smith 7

@mogensskov7536 6 жыл бұрын

Mopar Smith 7

@Lawncareconvos 7 жыл бұрын

thanks I think this is what is wrong withmy mower Im going to give it a shot when i get home thank you !

@joeyjoe8892 6 жыл бұрын

Hey what's up bro listen how come I replaced Ignition module and I'm only getting spark once in a while

@nathanrice1796 2 жыл бұрын

Undoubtedly, this guy knows what he's doing.

@ESRepair 11 жыл бұрын

WVMachinist, I'm guessing that your motor is OHV . If so, then it's the valves that need adjusting. If your motor has a pressure relief valve on the cam then it could be bad and you need to replace the cam . ( It could have both ) . Is your battery good ? Fully charged with enough amps for your motor ? Check all connections . Check grounds . Charging system good ? Whizkid

@fernandovazquez7945 6 жыл бұрын

Thanks a lot this was real hepfull

@zoeywhite7061 8 жыл бұрын

I had a good laugh. he dose not need that tester for spark, he is the tester!

@ESRepair 10 жыл бұрын

Jean , Try a smaller socket ,or one that will fit on the screw tighter , or a pair of pliers , or cut a grove in the head for a flat screw driver or a cold chisel . What ever you do don't break the leg off of the motor that it screws into . Whizkid

@mikematthews1589 6 жыл бұрын

ESRepair get hot and quite

@edrannou3914 3 ай бұрын

Make sure battery can spin engine fast enough. 4 Days chasing no spark issue, watched 50 videos, tried everything. Had charger on battery and kill switch disconnected. Put charger in jump mode and nice hot spark. I had been charging battery to 100%, but it was too weak. New battery fixed problem. Found a 300CCA battery to replace 3.5 year old 150 CCA battery. No more issues! I don't remember where I saw that 350 RPM minimum requirement, but only saw/heard it one time.

@Mr65Mee 9 жыл бұрын

How you test the oil level sw on a E-TON VIPER 50 ST , PS-50 .I GET NO SPARK I speck this switch . I try but can't get any kind of reading on it .

@Ejtune 9 жыл бұрын

You have 2 put a half of stick of dynamite in the gas tank n wire it to the ignition coil it would help it crank right over

@grasscutter88 9 жыл бұрын

Now I know why my mower won't restart easily when hot. I just eye balled it when I put my magneto on. I should have measured the clearance with a feeler gauge before removing it, but I was in a rush.

@georgehosmer1688 6 жыл бұрын

Ok I have something you guys can answer maybe. I have a brigs motor just like yours showing there. I get spark from one spark plug as long as i have a spark testor hooked up. When i unhook the testor it gets no spark to the plug. Why?

@JodBronson 5 жыл бұрын

@George Hosmer - My guess.... Something is Grounding it.

@CombatDoc54 7 жыл бұрын

Bad-ass. Do you have a link to that last tester?

@Pimpadeus 3 жыл бұрын

Thank you !

@juancarlossanzchaverri4472 5 жыл бұрын

Gracias efectivamente funciona como he descrito en el comentario anterior.

@ReneeNme 7 жыл бұрын

4:22 Too funny. I know you guys weren't trying to be funny in this video, but you were hilarious.

@duartepaintinghandymanservices 6 жыл бұрын

so lets say I cant find the same ignition coil that came with my lawn mower can I just buy a similar coil?

@JodBronson 5 жыл бұрын

+Jorge duarte = YES !!! NOTE: It doesn't take a lot of Power to run these. So even with a CHEAP one, it will run. Just make sure the Holes and the GAP lined up.... Search around... It's about $8-$10 most and free shipping too!

@JodBronson 5 жыл бұрын

*NOTE:* If anyone reading this.... Take the Spark Plug out. This will " alleviate compression " and it will crank easier and less power to crank as well :). Also, your Motor will spin freely and faster. This will make the " Magneto " even stronger (unless bad). But also help you diagnostic even faster and better with your Magneto / Ignition Coil / Armature !!!

@usMarinecuv902 8 жыл бұрын

I bought a twin that has a cut spark plug wire. Can I remove the rest of the wire and put a new one on? Or so I need a new coil?

@zzQUEzz 7 жыл бұрын

new coil

@usMarinecuv902 7 жыл бұрын

Cameron already have a new coil. Thanks though.

@larrywhite8514 8 жыл бұрын

Awesome. thanks good video

@DawleyDude 2 жыл бұрын

Nice work. Thumbs up from me

@paulg444 3 жыл бұрын

Could it be that the flywheel magnet is too weak ?

@goedeck1 7 жыл бұрын

Do the authorized shops have some kind of curved shim to gap the magnet/ flywheel?

@davidregan9872 7 жыл бұрын

They could, but a credit card will work. Cheaper anyway!

@rustynuckles3662 7 жыл бұрын

Nope they use either a .004 feeler gauge or the ole trusty business card

@yardlimit8695 6 жыл бұрын

i bought a coil for a briggs stratton and the box flap was used to set the gap. .010

@esmuybunoeltutorial1101 9 жыл бұрын

Good teaching and good expertis.said Mr.Maldonado

@ESRepair 9 жыл бұрын

Thank you thank you, Mr. Maldonado. Whizkid

@IPullingTractor 7 жыл бұрын

I noticed you failed to disconnect the kill wire before testing for spark. Heck, something (bad safety switch?) could be grounding out the kill wire. And what about the seat safety switch? That will kill the spark when it's not disconnected.

@kirkharmon21 7 жыл бұрын

got a question for anyone , have the same motor on my mower, stator went out, and someone wired it straight, bypassing diode. put s new stator on and it still want crank. and I do mean stator not starter, stator is under flywheel and keeps battery charged. any help please.

@scottnewland9682 7 жыл бұрын

Just ran across this video. Not sure if you still need help but here goes anyway. The stator only charges the battery. It has nothing to do with the mower starting and running. If you want to check it and the mower runs, start it up and take the positive cable off of the battery (while it's running). If it keeps running, your stator is working. If it dies, stator is bad. There should be an inline fuse between the stator and the battery as well. Make sure to check that. If your familiar with how to use a multimeter, you can check if any current is coming out of the stator while it's running also. There are videos on how to use the multimeter too.

@kirkharmon21 7 жыл бұрын

thanx, and im familiar with multimeter so ill give it a shot. thanx again

@Chromatrix1 10 жыл бұрын

good work,, thanks bud

@ESRepair 10 жыл бұрын

Chromatrix1 , Thank you for the comment . Whizkid

@cliffordwaibel769 6 жыл бұрын

how to check 8 coil magneo

@alexvaldex4155 3 жыл бұрын

You jumping was proof enough the coil was good? Good job!

@JohnDoe-gm5qr 7 жыл бұрын

I wonder if anyone makes any neodymium rare earth replacement magnets any small engines.

@mikeclement5383 3 жыл бұрын

Not only did I learn something I wanted to know about coils, I learned something I didn't really care to know about the American South.

@janetrichards-williamson508 8 жыл бұрын

Its really nice here yea !!!!

@donron8463 9 жыл бұрын

Great video! I love the accent, is that French? haha jk So when you disconnected the kill wire and checked for a spark you said that if it doesnt spark, then the coil is bad. My question is that if you disconnected the kill wire and it did spark, does that mean that the kill wire is broken and grounding out somewhere?

@michaeljoe739 6 жыл бұрын

More then likely. But check the ground where the mag attaches to the engine for corrosion.

@ivanstoinev1911 8 жыл бұрын

why my lawnmower is breaking brand new ignition coils

@CombatDoc54 7 жыл бұрын

So what about the rust on the fly-wheel?

@ZulkSOD 6 жыл бұрын

Wm Cottrell shouldn't matter it isn't making a connection it's just an alternating magnetic current

@frankdavidson9675 3 жыл бұрын

this may sound odd i can remember replacing 1coil on an eng it was on an outboard eng been wokring on eng all my adult life offf an on --im 87 now so this dont happen that often those things are well made just got thru wiring an old craftsman with 20 hp twin kohler

@hepeng2627 Жыл бұрын

thanks share this video

@scuffieduffie 10 жыл бұрын

That accent is so awsome!

@KilkennyLights 7 жыл бұрын

Thanks

@starlet9431 7 жыл бұрын

Good ol' Southern boy

@tonygullett560 6 жыл бұрын

We're can I buy a coil or magneto

@JodBronson 5 жыл бұрын

eBay :) - Cheap too !!! NOTE: Most of these are the SAME THING... Just different Hole drilled... But if you search hard enough.... It's about $8-$10 with Free Shipping!