Simple Trick To Diagnose A Bad Ignition Module (Coil) On A Lawnmower, Chainsaw, Weedeater Etc.

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  • čas přidán 30. 03. 2022
  • Simple Trick To Diagnose A Bad Ignition Module (Coil) On A Lawnmower, Chainsaw, Weedeater Etc. This is a hack that will save you enormous amounts of time and prevent you from buying unnecessary parts!
    Don’t forget to click the 🔔 to turn on Video Notifications for more money saving videos and tips, featuring all the brands like Stihl, Husky, Husqvarna, Honda, Echo, Kohler, Tecumseh, Dolmar, Makita, Poulan, Ariens, Powermore, Briggs and Stratton, Champion, Murray, John Deere, Craftsman, MTD, AYP, etc.
    Help me make videos or buy me a coffee!!
    / donyboy73
    Watch my video on how to fix a limp pull cord on a small engine here;
    • HOW-TO Tighten A Limp ...
    Connect with me on these social media spaces (plus that's where I announce contest winners)
    Facebook: / donyboy73-the-small-en...
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    Easy to follow and thorough step by step tutorials do it yourself (DIY) videos to help you with your broken lawn and garden equipment including snowblowers and zero turn mowers.
    I do my best to teach you how to easily diagnose problems the fastest, quickest and most efficient way with real repairs beyond just replacing a spark plug. These tips are for both the homeowner and shop owner.
    Whether it be a handheld, two stroke, two cycle engine like a chainsaw, weed eater, weed wacker, string trimmer, grass trimmer, line trimmer, hedge trimmer, strimmer, brush cutter, leaf blower, or four stroke, four cycle units like a lawnmower, wood splitter, lawn tractor, zero turn mower, snowblower, pressure washer, generator or a ride on mower that needs parts installed or replaced, I’m your go-to guy.
    My favorite brands of spark plugs are NGK and Champion and are the ones I recommend.
    I’ve been a small engine mechanic for many decades and also run my own repair shop so my videos are loaded with tips and tricks that I have learned and want to share with you. You will also find many tool and product reviews from top brands on my channel as well.
    I have the largest Small Engine Repair Video Library on CZcams and the entire internet with over 1200 videos, just GOOGLE "DONYBOY73"!
    I want "DON THE SMALL ENGINE DOCTOR" on CZcams to save you time, frustration and most importantly, MONEY with my HOW-TO videos!
    Due to factors beyond the control of DONYBOY73 “The Small Engine Doctor”, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. DONYBOY73 “The Small Engine Doctor” assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. DONYBOY73 “The Small Engine Doctor” recommends safe practices when working with power tools, hand tools, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of DONYBOY73 “The Small Engine Doctor”, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not DONYBOY73 “The Small Engine Doctor". ave
    #donyboy73 #honda
  • Jak na to + styl

Komentáře • 642

  • @donyboy73
    @donyboy73  Před 2 lety +23

    Watch my video on critical chainsaw maintenance here;
    czcams.com/video/JTCCgcopvhM/video.html
    Watch my chainsaw killer video here;
    czcams.com/video/REqF8qeson4/video.html

    • @oliverbreanna789
      @oliverbreanna789 Před 2 lety +1

      Donyboy73 tu explicacion es completamente clear

    • @donyboy73
      @donyboy73  Před 2 lety

      @@oliverbreanna789 gracias amigo! feliz noches!

    • @piledriver141
      @piledriver141 Před 2 lety +2

      Hey Donyboy somebody is using your channel again, sent me a WhatsApp # message

    • @johnw1178
      @johnw1178 Před 2 lety +1

      I got a WhatApp message as well. Not sure how to report it to YT!

    • @piledriver141
      @piledriver141 Před 2 lety

      @@johnw1178 yeh someone trying to pull a scam. Let donyboy know

  • @toonybrain
    @toonybrain Před 2 měsíci +5

    So few know this simple trick despite the numerous small-engine videos on CZcams.
    Thank you for your thorough explanations.

  • @sylvaingingras4457
    @sylvaingingras4457 Před 2 lety +170

    Between you and Steve’s small engine repair, you guys saved your viewers thousands or probably millions of dollars over the years and probably many headaches! You guys rock ! I’m not one to comment much but Thank You Donnyboy for your awesome channel !

    • @donyboy73
      @donyboy73  Před 2 lety +4

      merci Sylvain!

    • @josephjorgensen3282
      @josephjorgensen3282 Před 2 lety +7

      Those 2 guys have helped me learn enough that I do allot of small engine repair on the side

    • @Sensei948
      @Sensei948 Před 2 lety +2

      @@donyboy73 what distance in mm?

    • @donyboy73
      @donyboy73  Před 2 lety +3

      @@Sensei948 .2.5mm I believe

    • @gradyhernandez4699
      @gradyhernandez4699 Před rokem +1

      I have been inspired more by these channels of instructions to try more

  • @j31355a
    @j31355a Před rokem +47

    Some people are good technicians. Others are good teachers. You have the rare gift of having excellent skills in both areas. Let me add my thanks to the multitude of others who have already done so for your being willing to share your expertise with the rest of us.

  • @mousetrap13
    @mousetrap13 Před 2 lety +22

    Finally, a video without a life long story, succinct, accurate, direct, easy-Thank you! Xxx

    • @paulbush6503
      @paulbush6503 Před rokem +1

      I am rehabilitating an old horizontal twin pulled from my neighbor's woods. You are right; there are some horrible maintenance videos on You Tube. I just subscribed and liked after watching this video. Considering the amount of filth and rust I cleaned elsewhere on this tractor now I know I should check the flywheel magnets and gap and coil itself.

    • @mousetrap13
      @mousetrap13 Před rokem +1

      @@paulbush6503 speaking of rust, I suppose you know about molasses for non labour intensive rust removal? 1 part molasses to about 8 parts water. Soak for couple weeks max & No Rust! You do need to treat the clean surface as when it hits the air again, she just wants to surface rust. I'm about to pull out 4 old Toyota split rims from the 44 gallon drum I set up a fortnight ago. Wash off the smelly good, dry, rust converter spray I already have, thought I'd give it a spray before spray painting them. My car trailer will be on the road to looking good!

  • @johnmacdonald6220
    @johnmacdonald6220 Před 4 měsíci +2

    I had a Craftsman snowblower a few decades ago where the magnet disconnected from the flywheel and attached itself to the opposite. Took me a long time to figure out the problem. I admit I'm
    not mechanically inclined but just thought I would mention this incident in case someone has a rare occurrence like I did in the early 80's. I appreciate learning from your videos. Well done and clear concise information.

  • @robertwilliams6288
    @robertwilliams6288 Před 2 lety +27

    Thanks Don for giving us a place to start checking when there is no spark.

  • @fhiggenbottom
    @fhiggenbottom Před 7 měsíci

    Thanks for the great video donyboy73! I've watched so many others that leave you with more questions than answers. Yours are well thought out and concise. Yours and Tepco Cycle repair should be the standards for posting helpful tutorials on CZcams.

  • @billyhighfill
    @billyhighfill Před 7 měsíci +1

    Thank you sir. My toolbox has increased exponentially due to videos like this!!

  • @scottflower6547
    @scottflower6547 Před rokem +2

    Thanks for getting right to the point and adding no fluff

  • @michaelt1349
    @michaelt1349 Před 2 lety

    Good job Dony. My lawnmower with a B&S engine of 1994 vintage still has the original coil but I suspect one day I will have a no spark issue. This video is a good place to start the diagnosis.

  • @thebradleysoncatbirdhill6849

    Excellent explanation of that phenomenon. Very well done, Don! 👍

  • @keithrayeski3147
    @keithrayeski3147 Před 2 lety +3

    Great step by step diagnostic explanation! I trust this will help a lot of folks!

  • @pgtips9236
    @pgtips9236 Před měsícem

    Perfect explanation that i used to diagnose a faulty coil on my lawn mower which is now fully working 😁

  • @oregonlogger1958
    @oregonlogger1958 Před 12 dny

    THANK YOU! My coil was out of adjustment, used your business card to set the gap correctly.

  • @johnw1178
    @johnw1178 Před 2 lety +34

    Don, I was already familiar with this diagnostic but I am sure many will find this informative video very useful. It was well laid out and gets to the point quickly. Even knowing the process I watched the whole thing and enjoyed it 👍👍👍👍👍

  • @frankmchutchison9436
    @frankmchutchison9436 Před rokem +1

    thank you for making everything clear and accurate, and a pleasure to watch,

  • @sonofthe80s
    @sonofthe80s Před rokem +2

    These are among the best videos on small engine repair and maintenance, thanks for posting

  • @istonemind
    @istonemind Před 3 měsíci

    As always, the best source in CZcams on tractors, i.e., most thorough, but succinct, coverage on the subject involved.

  • @tomfillmore9710
    @tomfillmore9710 Před 2 lety +4

    Thanks buddy great advice and very helpful appreciate you sharing your knowledge take care

  • @mweimorts
    @mweimorts Před 2 lety

    Thank you for making this video. I am confronting this very issue with a leaf blower. I now know how to diagnose the problem.

  • @bobmcl2406
    @bobmcl2406 Před 2 lety +16

    Really clearly explained, as always. Thanks Dony!

  • @skipproctor8979
    @skipproctor8979 Před 2 lety +1

    Great Vid! I would never have thought to check non-grounded wire. Thanks Don!

  • @ojong20521
    @ojong20521 Před měsícem

    Thanks Don. Great job explaining ignition coil problems and thanks for sharing your expertise!

  • @larrydobson6986
    @larrydobson6986 Před rokem +1

    I have been trying to figure out what is wrong with my 290D as far as a spark problem. You solved it for me in a couple of minutes!
    Now I can look for my wiring problem. Thank you for your help! The Old Guy/Larry

  • @damienjackson2450
    @damienjackson2450 Před rokem

    Really well made and informative video. Simple and clear information. I don't have this issue and just stumbled across the vid, but am now a subscriber. 👍

  • @cathyhale7817
    @cathyhale7817 Před 2 lety +2

    You’re the best! My son and I have learned so much from you!!

  • @barrybebenek8691
    @barrybebenek8691 Před 2 lety +1

    Absolutely fantastic info. Thanks again Don. 🇨🇦👍🏼

  • @rpavlik1
    @rpavlik1 Před 2 lety

    Great, thanks! The kind of thing I'd hope I could figure out on some level, but it is really useful to have it explicit.

  • @davidwee6927
    @davidwee6927 Před 2 lety +1

    we all enjoy listening to your video. Thank you.

  • @ApexHotShot
    @ApexHotShot Před 8 měsíci

    Thanks, Dony. I have an Echo BP 265l leaf blower with no spark. I will use your tip to isolate the problem. Love your channel.

  • @theon_ean_donly
    @theon_ean_donly Před rokem +2

    Thanks a million for making it so clear and to the point 👌👍

  • @drkwlsk
    @drkwlsk Před 2 lety +1

    Excellent explanation on this topic. Love these videos!!

  • @jonreynolds6248
    @jonreynolds6248 Před rokem +10

    This one of the best common sense and best explained small engine vids I've ever come across on here!! I am always saying to my siblings that I am no troubleshooter with small engines, but with this info I think I graduated a couple grades. Thanks again!

  • @Benius
    @Benius Před 11 měsíci

    Thanks a bunch, this helped me resolve an issue with intermittent spark. Turned out to be the kill switch cable being worn/stretched out (who would've thought huh?), added a spacer as a quick fix and it runs like a top! 😄

  • @auck1969
    @auck1969 Před 29 dny

    What an awesome video and tutorial. Thanks a million for the free education. It is very much appreciated. Have a fantastic day.

  • @BobHerres
    @BobHerres Před 2 lety

    Wow! I really didn't know much of anything about this very mysterious area... As you mentioned once one understands this simple concept trouble shooting spark issues will be quick and easy! *Excellent Bonus Tip about having a solid plan in place to "stop an engine" once you have the switch wire disconnected!... :-) Thank you for sharing!

  • @lsuman38
    @lsuman38 Před 2 lety

    On point!! My mower with 691v Kawasaki had no spark while engine was hot. Replaced coils, still same problem. Cleaned all wiring connections and now no problem.

  • @kalsworld2347
    @kalsworld2347 Před rokem

    This is the best tip I have seen troubleshooting my tiller issue. Was able to figure the issue using this method.

  • @tonym6920
    @tonym6920 Před 2 lety

    Solid advice Dony, thanks! Have a great weekend.

  • @jbplays7302
    @jbplays7302 Před 2 lety +1

    Great video Donny!!!
    You probably saved alot of viewers from wasting money on coils, when they really just need a new switch, or wire that's gotten frayed.

  • @BearE9090
    @BearE9090 Před 7 měsíci

    Thanks for the great tip. I put a new coil in my friend's lawnmower, and after a few weaks it started dying again after a few minutes, it wouldn't start till it cooled down. Hopefully I remember this in the spring.

  • @balmeros272
    @balmeros272 Před rokem +1

    100% Brilliant straight forward how to check a coil. Best on youtube by a country mile.

  • @tightline6lb
    @tightline6lb Před rokem

    Nicely done on the explanation of the coil issues. 😊

  • @waynedutton7046
    @waynedutton7046 Před rokem

    Great clear instructions, thanks for the help.

  • @duneattack
    @duneattack Před rokem +2

    Thank you!! Out of 5 or 6 vids I've watched you're the only one to explain what removing the primary coil wire does. It effectively eliminates the key switch (ground switch) from the run circuit
    My ignition switch fell apart and the clowns at the small engine repair shop told me to just connect the two wires together which effectively grounds the coil and shuts off the spark.
    My primary issue was not only bad gas, but water in the fuel as well, but in order to get to the carb I had to remove a cover, but in order to get the cover out of the way I had to remove the key switch wires, and in doing so I snapped one of the connectors of the switch. It's not uncommon for me to compound a problem during a repair when I'm in a hurry and not being careful. Anyway thanks again!

  • @jamdownone
    @jamdownone Před 2 lety

    Thanks for this great tip DB ! love your channel.

  • @budgillett9627
    @budgillett9627 Před 2 lety

    AWESOME! Thank you from Nebraska.

  • @barriejones15
    @barriejones15 Před rokem

    Very straightforward explanation, many thanks

  • @kevinhitt719
    @kevinhitt719 Před rokem

    you sure made that easy to understand and so simple to do I have an old kohler engine from the early 60's with no spark now I know where to start thank you

  • @glenholmgren1218
    @glenholmgren1218 Před 3 měsíci

    THANKS! excellent description

  • @barrypettit3668
    @barrypettit3668 Před 2 lety +1

    Thanks Don, another great video. Keep them coming, i enjoy everyone.

  • @markdederick1953
    @markdederick1953 Před rokem

    Great vid Donny. Electric problems are my nemesis on equipment I’m working on.

  • @david-kelipsobaker4090

    Thanks for your help I'm going to check that now Briggs and Stratton lawn mower

  • @mikebetts3573
    @mikebetts3573 Před rokem +1

    This guy is so outstanding he has just answered the major questions in My Little Life thank you guy thank you

  • @chucka53
    @chucka53 Před 2 lety +1

    Your explanations are always clear. Good job Don.

  • @mabisson1
    @mabisson1 Před rokem

    Thank you for the perfectly detailed information. I will be sharing your pages to all my friends!!

  • @kennethtalbott2233
    @kennethtalbott2233 Před rokem

    great info thanks. my engines a brand new 4HP Loncin, ran for less than ten minutes now no spark, checked the plug and that's good, gunno do this test before i send it back.

  • @hillwooky
    @hillwooky Před rokem

    Thanks. Perfectly simple explanation.

  • @leefranks36604
    @leefranks36604 Před rokem

    Thanks for making it simple!👍

  • @drewk3402
    @drewk3402 Před 2 lety

    Excellent video! Thank you, Don.

  • @ohbrother3792
    @ohbrother3792 Před 11 měsíci

    I will try to remember this.
    Thank you very much for your insight !

  • @dinkumannely3963
    @dinkumannely3963 Před 2 lety +2

    Thats a life saving hack. Yes it's something new i learn now. Cheers for the tip.

  • @mariobueno3368
    @mariobueno3368 Před rokem

    Excellent summary at the end!!

  • @chadbeachem956
    @chadbeachem956 Před 2 lety

    Professional and informative please keep up the good work!

  • @ryanbruner8928
    @ryanbruner8928 Před 2 lety +1

    Great video for someone trying to do the work themselves! I've found that a business card works great,too!

  • @tannerc900
    @tannerc900 Před 7 měsíci +1

    This was a huge help. I have a old 80s generator with a points system in trying to get going again and I replaced the coil with a new upgraded electrical one off a generator that DID run once upon a time and turns out that coil is now dead as well.. what are the odds but now I know. Huge help, another big thanks to you Don!

  • @RollingEasy
    @RollingEasy Před rokem +1

    Great advice and yes, 71yrs old and I learned something today.. Thank you.

  • @amandagardner565
    @amandagardner565 Před 2 lety

    great advice Donny.
    a few years ago my wife had a Murray Ride on mower stop running while we were collecting fallen branches, we had been stating and stopping the mower a dozen times prior i did everything except pull the cut off wire, the fault was a short in the connector to the seat safety switch.
    there is a spring in the connector that over time shorts out, planned obsolescent as its finest.
    i've removed that shorting spring from several other Murray mowers since then.

  • @doviejames
    @doviejames Před rokem

    Thanks, great tip! Helped me get my stepsons Stihl 029 running and he's very happy!!

  • @5Burma
    @5Burma Před 2 měsíci

    Best explanation of how to check an ignition coil for no spark. Thank you

  • @kevinswoodkraft8539
    @kevinswoodkraft8539 Před rokem

    Great tip Donny, thanks!

  • @nashguy207
    @nashguy207 Před 2 lety

    what a great tip. Thanks Donyboy!!

  • @charleswilson577
    @charleswilson577 Před 9 měsíci

    Now I know where to go for great information and no rambling but. Thank you much.

  • @WiseOne6969
    @WiseOne6969 Před rokem

    Thanks for helping me fix my stuff and save money!

  • @ThaiXLe
    @ThaiXLe Před rokem

    Best instruction on this I've seen. Thanks!

  • @brianmcconnell7988
    @brianmcconnell7988 Před 6 dny

    good video dony i had a no spark problem with my stihl blower it was rust on the flywheel great tip !

  • @ChuckD59
    @ChuckD59 Před 2 lety

    Thanks dony, some good info there and well-presented (speaking as someone who, as a young 4-Her did demonstrations at county fairs and won blue ribbons).

  • @ClipperzPM
    @ClipperzPM Před 2 lety

    Thanks for this video. I was gonna buy new coil but i will follow all your professional advice from this videos befofe i walk down to the shop and buy coil

  • @nebhosspin1252
    @nebhosspin1252 Před rokem

    Very helpful. Thanks for the video.

  • @blatorden
    @blatorden Před 2 lety +3

    Thank you for the info! :)
    Update.
    I just finished repairing my chainsaw. The flywheel was too close to the coil, too much wood dust everywhere, one tube from the rubber pump (the pressure one I guess) was shredded at one end. The light rain here pushed me inside the house. My room smells of gasoline. Tools everywhere. I kept going. The coil and the flywheel were pretty clean. I changed both tubes in the rubber pump area, cleaned the parts, re-positioned the coil (I did that trick with the business card), started the chainsaw, and... it works! The engine coughed a few times while I pressed the acceleration, then it worked better and better. Maybe tomorrow I'll cut some wood.
    I'm tired but I'm also happy. Thank you, man. 😁

  • @ronbishop4057
    @ronbishop4057 Před 11 měsíci

    Very well explained, thank you!

  • @cim851
    @cim851 Před 4 měsíci

    Hi Don, thanks for sharing your money saving knowledge. I have a Gravely ProTurn48 with a Kawasaki FX691 engine. Recently became hard to start and then would not start at all.
    Found a frayed wire running to the tab on one of the coils. Rats/mice had been busy doing some “servicing” as you said in your video. Fixed wire and it fired right up.

  • @steveb.6267
    @steveb.6267 Před 2 lety

    I know all this but I still watched your video because I like watching all your videos. 👍🇨🇦

  • @apasla
    @apasla Před 19 dny

    nicely explained. Thank you.

  • @ianbutler1983
    @ianbutler1983 Před 2 lety

    Thanks Dony. That was very useful information.

  • @enriquegonzales4433
    @enriquegonzales4433 Před rokem

    Excellent video...Very well and very clear explanation. Good sound and clean English, easy to understand. Thank you...!!

  • @celestewilson5377
    @celestewilson5377 Před rokem

    Hello, my name is Dave Wilson.
    Seeing this video caused me to feel it necessary to comment on a problem I had with my Stihl 026 Saw. Saw would start easily but not pull any load. Cleaned the carb twice, still no good. Must be ignition, but had spark with plug out of engine. Got new coil module, ran perfectly. Measured secondary resistance of coil with ohmmeter, new coil 5k ohm, old bad coil 1k ohm. Bad coil must have had some shorted secondary windings. Use an Ohmmeter.

  • @bobplummer3986
    @bobplummer3986 Před 9 měsíci

    Thanks so much, This was the answer to isolating my no spark with 2 new coils issue.

  • @garrettstevensen2467
    @garrettstevensen2467 Před 2 lety

    Solid Gold! Crystal Clear! Thank you Dony!!! :)

  • @mattb9664
    @mattb9664 Před 2 lety +6

    I went through this last year with my 12 year old SRM 230. It was running totally fine the year before, believe it started during my Christmas break maintenance, and I had it stored with 100% pure fuel and oil mix. It burps on first pull, and then starts right up afterward. Last year the thing wouldn't start at all and it was totally dead. I ended up proving that it wasn't the wires or kill switch first, tried a known good spark plug to prove there was still no spark (in some cases very very dim spark), and then ended up justifying the purchase of the $50 OEM ignition coil (without boot). The resistance also was way out of range on the old one, where as the new one had proper in-range resistance. Replaced it and the trimmer started right up.

    • @mikespain8655
      @mikespain8655 Před 2 lety

      Pull the spark plug boot also with no spark, and check connection integrity.

  • @frankmayer7960
    @frankmayer7960 Před rokem +6

    Un gros merci Donyboy, très instructif, on est chanceux d'avoir des gars comme toi sur youtube. As someone else said, you saved us hundreds if not thousands of dollars over the years. Thank you so much for your work.

  • @konstantinusstoyanov9749

    Great rehearsal, thank you

  • @dickchow6850
    @dickchow6850 Před rokem

    very good demonstration; thank you

  • @dannyatherton8892
    @dannyatherton8892 Před rokem +3

    Once again a really good video and a very good example of someone who knows how to get the message over,
    Thank you and well done.

  • @shanesmaineshop
    @shanesmaineshop Před rokem

    I have used this method many times, Great tip for people to know.

  • @TheOnlySgtRock
    @TheOnlySgtRock Před rokem

    Great information and presented well.

  • @bernyardmoss756
    @bernyardmoss756 Před 19 dny

    thanks don great work and lesson straight to the point .

  • @john0119
    @john0119 Před 2 lety

    Great Info! TY for sharing 👍👍

  • @mikedog8674
    @mikedog8674 Před 9 měsíci

    Your video was very helpful! Thank you!