How To Test a Briggs And Stratton Lawnmower Coil Using a Multimeter
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- Опубликовано: 22 июл 2024
- #multimeter #roystheboy #briggsandstratton This videoi show you how to test brigg and stratton coils using a multi meter
Email: roystheboy2@gmail.com
Twitter: / roytheb39804025
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Just found the supressor cap was knacked, no readings on the multi meter, removed cap and all working. Great video. Thanks.
Hi Roy, thanks. Straight to the point no unnecessary chat, my kind of guy
Hey sir thank you for sharing. I have little faith in lawnmower shops though they can fix anything if you are rich. I do thank God for RUclips for such people like me living on a small budget. Again thank you Sir
This was a great walk through and demonstration. thanks for sharing.
thanks for watching i hope it helps
Very cool. Never knew. Always learn something new every day. Thank u for sharing
Thanks i have a Briggs engine but had no idea how to test the coil. Thanks for the tutorials.
Ty, after watching a couple videos YOURS THE BEST, my coil is 2.97, and I was going to buy one, saved a few quid, I think I only need a condenser!!!
Good video. You explained everything clearly and it’s just the information I need. Thanks.
hello there! new canadian friend here! thanks for stopping by my channel much appreciated! this video was very insiteful! thanks for explaining all this!
Very helpful. Thank you. I just bought (very cheap - 20$) a 8 hp snowblower with B&S engine, no spark - so I'll use this metode to test it. Very easy, and I don't have to remove anything to get it testet either :)
Great information & presentation! Well done! 👍 Have a wonderful day!
I just did this test on a power washer today. It had no spark. So I pulled the coil and checked it. The coil read 4.5 k which was within specs. I noticed it had considerable rust on the legs and on the flywheel. I polished those up and..viola! The engine started.
I'm glad it helped you repair your own one
Thanks for sharing - this helped rule out coils as my issue and it ended up being the coil gap itself on the one side, set to Briggs spec of .010 and now Mower is running like a champ!
Excellent video. It helped me sort what "wasn't" the problem. Thanks for sharing
Thanks for this. I've got a chain saw that the shop said can't be fixed due to no spark. This will give me a place to start with my VOM.
Just FYI - resistance has no polarity, so you don't have to worry about putting the positive test lead or the negative lead in a specific place - you'll get the same whether they are switched or not.
Nice video my friend. Good information and good showing. Look forward to the next one.
Thanks mate. Great video, you never stop learning...
Thanks Roy Boy. Just what I was looking for. Nice one!
Jolly good show. Now I'm ready to check the ohms on mine straight away.
Very informative Roy i think i will invest in a multi meter easy way to test the coils without fitting them good video
Roy, another a Florida guy here. I have a cub with a Briggs 22 hp and I need to test mine today. Thanks for the video.
thank you for watching your very welcome
This is helpful, in the fact that we dont have to look up those specifications. Thanks !
thanks for watching
@@roystheboy &
have a briggs sprint 40 lx from 2000 and this is the first time it's not sparked, now know the coil is ok and it's probably the 24 year old plug, thanks Roy.
I totally good presentation! Thanks for the information!
Thanks for the information,I didn`t know how to test a coil before and I`v worked on mowers for years. 5stars
Thanks for the good video. My coil tested within the range you describe, but due to ruling out everything else that could have caused the mower not to have spark, I replaced the coil with a used coil, and the mower started right up.
Might’ve been one of the wires....
The coil on the bench may check ok, but if its not grounded to the engine block, you wont get a spark. Check for corrosion on the mounting points.
Good info. I’ll be testing the coil on a cursed freebie shortly. One item to note, Comm is your ground or earth connection, not positive. Black wire goes there. You’re red wire would go in either outside connection, right side for volts, ohms or milliamps, left side for DC amps. Hope this helps.
Absolutely correct , wouldn't get proper results if there is a diode in the circuit !!
Colette & Joe Shwetz true
If you are checking for continuity or taking an ohm reading the positive or negative doesn't matter with a digital meter. It is simply reading between the meter leads. Not a polarity bias situation.
Just a slight correction, for the open circuit example you say it has no resistance, when it in fact has infinite resistance (at least in practical terms).
Big help, thanks. Note, B&S coils spec between 2.5~5k ohms. (not 25,000)
GREAT VIDEO BIG ANSWER MATE😅
NOBODY STATES IF THERE ISNT A READING THE COIL IS DEAD. ONLY YOU👌. NOW I KNOW FOR SURE MY COIL IS DEAD.
God Bless you bro
NY VIEWER
3:20 You should measure the primary winding between the spade connector and the bolt hole. If you measure both coils in series like you did, you will not see any difference, but if you measure the primary separately, you should get a very low ohms reading - like, less than 1ohm (change your mulltimeter scale if it isn't autoranging). While you _can_ connect a kill switch to this spade, its main connection is to the points, so it's important to check it separately. The primary is high current, low volts, and the secondary is high voltage, low current. Hope this helps.
Keith Sherry right, it is better to look at the principle of a coil, Bobine in Dutch, to understand the measured values.
and at 4:40 there is that cap. It is possible that they are R types, for suppressing pulses on radio etc. then there is a hi R resistance in that cap. So 5KOhm is in the circuit already.
When repairing old engines a often use caps without a suppressor resistor.
Good luck with your videos!
¹
This video came at the right time I'm work on the very same thing. I learned how to use a voltmeter very cool !
Glad to hear it
Hi Roy. Excellent video many thanks. I have a Mountfield with Sumec engine (RV40 - RV150 Series( and purchased an after market coil which is failing to produce a spark. I have tested it and the reading is 6.2K Ohms - is this reading too high for this machine please?
Good video but one thing to keep in mind, coils can fail under running conditions. The heat can cause the internal windings to fail and in turn the coil fails. I just had this happen on an older opposed twin Briggs, it would start right up when the engine was cold and after it warmed up, it would not start again (no spark). I have had this happen on other coils as well! The opposed twin engine utilized a single coil with 2 wires (the cylinders fired at TDC at the same time) - I could take 1 wire off of ether cylinder and the engine would start, as soon as I put the wire back on and tried to start it back up it lost spark. A new coil fixed the problem!
thank you for that information i will keep in mind
@@roystheboy You are certainly welcome! It is rare, but it does happen!
@@roystheboy 4.7K is the resistance okay?
@@ScottMiller-tu3gg seen that a couple of times, it's a common problem with a ballast resistors found on older Dodges.
Very helpful. Thanks! Is there a convenient place to find out what the various resistance tolerances are for different coils? I gather that the larger the engine, the higher the range of resistance should be. Is that about right? For example, if I want to check the coil for my truck, where do I find out what I should be looking for on a good coil.
instaBlaster.
@@zakaigatlin5812 oi, don't be mean to th henglish!
Thanks for that Roy, good info to know.......Easier than Pulling the cord and looking for a spark on Your own.
yes it does
I have a John Deere with the B&S 18hp not firing the spark plug on the right side. Step one switched the plugs from right to left, and right one still fouling out. Step two replaced both plugs with new ones (mainly just because it was time to do so). Step three took coils off thinking I'd be replacing the one on the right anyhow. Step four went thru this testing procedure as show in the video, but both coils are good. Step five scratched my head and stared at it for a long time. Step six, tested the kill wires with the ohmmeter and found that the one on the right has zero connectivity. So I'll be going out tomorrow to get a new wiring harness for the kill wires. I'm happy that I'm buying two pieces of wire for about $12-15 instead of a more expensive coil. Hopefully that fixes it and I can get back to mowing.
Thanks for the video, this was very helpful and saved me from just running out and buying a new coil without checking first.
Thank you bob for watching I am glad it saved you some money you seem to know what you're doing good luck with getting it fixed.
Awesome Vid!! Exactly what I needed!
Thank you that was very helpful.
Good job mate! Thanks for the valuable info..
Thank you for the info Roy Boy God Bless
Nice work thank you for sharing knowledge.
Thank you for the information Roys 👍
Smashed🤜👍..great video!
Going to test my coil now, thank you!
Excellent explanation video👍
Thanks for your video. Mine was bad and your video confirmed my guess.
I had another idea, but can't test it right now. If you set your meter to measure DC voltage, and connect the positive lead to where the plug goes and ground the meter on the body while passing a neodymium magnet in the same path that the crankshaft goes, you should get a momentary voltage signal. If anyone can try it, let me know if my idea worked.
Will give it a try
@@roystheboy Nice! Looking forward to the results!
Hi, George Pierce by way of your Facebook comment, thank you. You deliver...actually over-deliver exactly what your viewers are expecting, thanks for excellent content and presentation, well done. A few more keywords in your description might make YT love your video even more. Very nice video, thanks.
+George Pierce thanks george what keywords are you thinking of and thanks for watching
This is great , thank you for sharing
ty for the quick video. very helpful.
Hi Roy
Im not a million miles from you in Chislehurst (Bromley, S E London way).
Ive watched loads of video's on checking these coils, all hard to understand.
After watching yours i get it now, nice and easy to follow.
thank you glad it helped
Subbed, and rang the bell, great job explaining the process.
Very informative video on how to test the coil. Appreciate the step-by-step instructions.
Silver Bugle thank you I Appreciate your comment and watching
Thank you i have a 2017 murray lawn mower and no spark,but the spark plug is good because when i hook the spark plug up to another lawn mower it sparks.So it must be the coil,i hope so because they cost $45.00.I never had a bad coil and i find it hard to believe the coil is bad on a 2 year old(young)lawn mower that was hardly used and was kept in the shed,but it was used because the fuel system is good.But i will try to test the coil on the mower like you showed before i buy one.
+ricky parr Thanks for watching I hope you sort it out if the coil is good check the connection at the ignition
Interesting video! Thanks buddy
Very informative walk through...new Subscriber here from Gordie Bobs
wonderful! You helped fix my snow blower and to finally get my head around these coils. Do you know of a site that has resistance specifications for this type of coil?
Did you find a site for coil specs?
Great video stopping by to show support ❤
lepo ste objasnili hvala vam.
Great video. Thanks!
8/24/2019
Thanks Roy from Florida. Great video and plenty of lighting so everything could be seen! I liked that you gave more than one example with the different coils. I wished I came across your video before I bought a New Coil. I tested both with the same exact readings.They were 172 on both old and new coil.
Where would I find how many Ohms the coil is supposed to be?Thx very much / keep up the good deeds.
Well done sir . Thank you.
Showing United States love bro... Let's stay in touch
Thanks, having trouble with my Husqvarna 340 chainsaw, did your test with coil attached to saw and got 1.56 so is that good or bad? adjusted the coil to credit card gauge and it started for a second with starting fluid.
Then the problem sounds like you're carburetor
Awesome job
I tested mine and got 4.68 . thanks for this Video .
Thank you for sharing! New friend here!
I have a old Fairbanks Morse generator with a Briggs and Stratton engine. It's a model 23FBPC type 203531 serial 289831. I want to know how to test the coil on it and find out if I can get a replacement coil if it's bad. I have been told that they don't make new coils for this engine?
Will this test work if it has two spark plug wires coming out? It’s for a riding mower
Thanks mate, helped me!
Glad to hear that
Great video tank you.
Thanks for sharing with us this video appreciations 🇩🇰🙏👍
Thanks for the video
does it matter which side of the metal laminated portion you contact in the test? I get a normal reading on one side & no reading on the other side.
Great job 👍
Great help!
That Was Good Info 👍
I've done this test and have gotten 2.66 but my engine is only sometimes sparking, came be running okay for time then all of a sudden just won't spark anymore? Any ideas on what to look out for? Thanks
Is there any difference between testing an electronic ignition coil and an old-style points ignition coil?
If the kill switch wire doesn't read would the lawn mower still start?
Help. i have an ohms reading of 2.7 from spark plug end and earthed and tried 3 different spark plugs and still no spark ?any idea.cheers
Question i have a lawnmower 7.25 engine and when the first start is no problem and when the 2nd start the no have spark, i change the oil with a replacement and measure the ohms and have 5.75 k and y calibrate and the problem persist and then i buy a oem coil new and the measurement its 6.50k and i put the oem coil and the problem persist in the 2nd start they no have spark, the flywheel and key its perfect, spark plug its new, any body cant help me
I'm testing a Briggs carb off a 6.5 hp engine. Reading 4.99. no spark, but the flywheel was cracked as well. Is this still a good coil
nice tips, very helpful keep it up
lemer sucgang thank you for watching
So my coil is off a 17.5hp Briggs and I lost fire yesterday as I was trying to start it up, it kept flooding. Not hitting at all. Thought it was possibly a switch or sparkplug but I tried a spark tester and it wasn't jumping on it. My meter showed 1. On both tests. So my coil is dead?
Thanks!Enabling.
Thank you, sir.
Good information! Thanks for sharing.
On every coil you tested you only did the HT side , I have a few coils with good secondary readings but the primary side was duff , those ones you tested could have been the same so removed ?
Thanks Roy
I have a old briggs and stratton mines coming up as 12.66 not sure if im doing it right
Hi, gretting from Venezuela.
You say the range is 25000- 5000 ohms and then test one coil that comes out at 2,67Ohms 2670ohms and said it's good, doesn't make sense to me ?? Seems to be out of range to me , maybe you meant 2500-5000 ? Anyway thanks for a good video
Googling the question yielded multiple 2500-5000 ohms.
Show how to test the new style 4 terminal Honda coil on GX 630
Thank You 🙏
I am not sure but he said the positive wire went to com port on multimeter when I think it would plug into the other port, Normally ground or negative would go to com port
My thoughts exactly. I've always put the negative into the com port.
Pretty sure he's in the northern hemisphere though
Irrelevant when testing resistance
Our boy Roy
Hi roy, I am going to see a Briggs and Stratton mower tomorrow morning no spark i have been told. This is really handy. Are the coils known to fail?
Finally someone that taught me the right way to use the meter on a coil!! Thank you for your help and video!! So mine reads 6.45 Briggs and Stratton would you know what a new one is supposed to read? I have ordered and installed a new thermostat, changed the oil, filter and still not wanting to run. It has a self choke primer it’s a 2013 craftsman push mower.
I might add the carburetor has been cleaned as well. There’s not much more I can get besides a new coil and carburetor
If someone hit a stump the key on flywheel can shear....timeing is then off...and 6.0 is good reading... Squirt gas in plug hole...then put plug back in
@@PaulPippinjr-ev2wi I decided to keep the new coil since there was nothing wrong with the old one. I did replace the carburetor and the self choke primer and the lawnmower has been running great. And let me tell you on the first pull it started right up.🤙🏽
A very useful video. Didn't fix my problem, but I was able to avoid wasting money on a new coil. I suspect my problem is bad magnets in the flywheel.
Try cleaning any rust from the magnetic and from the coil
@@roystheboy I did that. It didn't help. I got fed up with it and put it at the curb. Now it's someone else's problem. :-) Thanks for the suggestion.
Then some time we have to do that
@@Bargle5 never seen a magnet go bad. Did you happen to sand the post the coil bolts to? Also gap it correctly. Guys like me absolutely love guys like you because of your lack of patience as well as knowledge of the situation.
@@cravenmoorehead5636 Yes, sanded all the contact points. Set and double checked the gap. Also checked for a grounded out kill wire. And made sure the spark plug was good. Nothing helped.