Lawnmower Won't Start? Watch This EASY FIX! AUTO- CHOKE PROBLEMS

Lawnmower Won't Start? Watch This EASY FIX! AUTO- CHOKE PROBLEMS
Is your lawnmower getting hard to start? Sometimes just replacing the spark plug won't do the trick so in this video I get at the root cause of this problem for a permanent cure!
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Easy to follow and thorough step by step tutorials do it yourself (DIY) to help you with your broken lawn and garden equipment including snowblowers.
I do my best to teach you how to easily diagnose problems the fastest, quickest and most efficient way for the homeowner and shop owner.
Whether it be a handheld, two stroke, two cycle engine like chainsaws, weed eaters, string trimmers, grass trimmers, line trimmers, hedge trimmers, strimmers, brush cutters, leaf blowers, or four stroke, four cycle units like lawn mowers, snowblowers, pressure washers, generators, ride on mowers that need parts installed or replaced, I’m your go-to guy.
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 KZbin and the entire internet with over 1200 videos!
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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".

[@donyboy73]

Watch my video "TOP 5 Reasons Your Lawnmower Won't Start! here; kzbin.info/www/bejne/pmGyfWh3mdF5qbc

[@zed8083]

We're not worthy Don! You are the wizard of small engine repair/troubleshooting! Appreciate the upload! Cheers!

[@DavidGardner-com]

OMG How Lucky am I...was walking the neighborhood and saw a "free" mower that looked in good shape which they said was not working for likely "user error" I grabbed the van and picked it up and it did exactly what they said with start once in a while then blow smoke and go out but not start other times. Played around with the spark plug and nothing...Found this video and with my own fingers bent that one metal piece you mentioned to help close the choke and BOOM! Started right up, shut it down and BOOM started right up again! Whoo hoo and thank you for this video.

[@marshallborder9089]

This video has helped me view the spring placement on a Briggs 175 cc ( same setup on mine as this one ) that I had got given to me , and a plus on the auto choke too . Thanks a bunch .

[@barriedeis4347]

I thought you were doing my mower. Looked exactly like I had the same problem. 10 minute fix. Thanks

[@patrickbowtell]

Thanks mate. Had exact same issue on a Briggs and Stratton 8.50. Appreciate all the effort you put into these posts.

[@bobmcl2406]

Nice clear video. I have not hit this problem yet, but now I have new info to file away. Thanks for sharing your knowledge.

[@marcelcanuck]

awesome , now if i see one of these at the landfill site i will snatch it up .. allot of people would have thrown this out and just bought a new one .. good work

[@11sgsg1]

Thank you. This more or less fixed my issue. My model had a plate protecting the spring and lever controlling the butterfly. The plate was slightly bent inward so it stopped the lever from releasing and closing the choke. A tiny bend outward and it fires up first pull again!

[@dp4867]

Yep, kinda same issue with those autochoke system ( the bracket being bent and obstructing the choke lever arm from swinging wide open).... As always your videos are the best👍

[@Trukkerterry]

Camera work very good as well. Showing the size and position of the springs helped me find the springs I needed.

[@mohabatkhanmalak1161]

Thank you and thumbs up. Its like with automatic transmission, when they play up the first component to check is the linkage.

[@22467271]

Thanks a Mil Dony you saved us a trip to the mechanic! All the best to you.

[@ldaly4621]

Brilliant short and informative information on this problem and how to sort it . Thank you from Ireland 🇮🇪

[@843SouthernPride]

Dude, you are KING!!! That just happened to be the solution before I knew I had a problem. Please please need help with Coleman Powermate 4000w generator

[@barrybebenek8691]

Great tip. Always start looking at the simple fixes first. Thanks for this. 🇨🇦👍🏼

[@alsouthern7190]

If life was just that simple... Great helpful vid as usual, thanks fpr posting!

[@bamseid]

Thank you heaps mate, Been years with this mower constantly using start ya bastard to turn it on. Enough was enough i was ready to pull it apart completely to find the problem - you just saved me an absolute headache you legend - Turns out the butterfly flap was stuck open from a weak return spring thats showed in this video.

[@wadeeberle7080]

Thanks a lot, I fixed my lawnmower today. Great video.

[@rpavlik1]

Cool, great tip! I'll have to check and see if the same applies to l-head "quantum" Briggs engines: I'd been blaming starting issues on using it rarely since it's just cleaning up after my Rider.

[@vetterfellow]

Lot's of good Education here. Thank you DB73 for your making it simple to understand. You rock !!.

[@dakota19021]

Great i tossed a Briggs and Stratton powered pressure washer 2 years ago cause i couldn't get it to start. Thanks for the info

[@langer24106]

Mustie1 probably has it now :)

[@Prophecynut]

My brand 1 yr old 775 had a butterfly was just flopping around. Had to take entire cover off to get to one screw holding carb cover in place, but thanks to vid it works now without having to bend armature seeing as it seems was never hooked up right at the factory. Common problem Briggs? Much appreciated for the help here!

[@bigjersobservations]

Thanks Donny, another one of mine fixed perfectly with your videos.

[@rasmo243]

Nice repair i'm sure this will help a lot of people a simple fix good video as usual.

[@stevepenner9369]

I'd been working on my mower for hours when I came across your video. Takes a smart guy to think that thru. Thanks!

[@donyboy73]

Glad to help!

[@adriancrawford7571]

Woooooow!!! If life was as easy as this video!!! Thank you!

[@lamontwoodard8783]

Just watched this and fixed my mower in like 5 minutes m. Perfect video bro. Thank you!

[@marcusw6767]

Thank you! Only thing I have to add is whenever you do mower and weed eater repairs please include close up shots and a detailed description of how the linkage is supposed to go. A lot of videos on KZbin don't show that at all and I can't tell you how many hours I've searched and searched on KZbin for numerous engines trying to just find how linkage is set up. I appreciate your videos they have helped me a lot keep up the good work!

[@999thenewman]

That's a very helpful video. Thanks for sharing.

[@THExLAWxMAN]

You gotta love the simple fix issues. And you got to use power tools. Win win.!!!

[@Broc971]

DUDE THANK YOU !!! You were a big help I really appreciate you man.

[@christophermaurer1271]

Great easy tip & fix . Thanks Don. I noticed the hose connection on the the deck and was wondering your opinion regarding using this feature . When I purchased my Jonsered GT52 F I was told never to use this to wash under the mower as it put water in the bearings and would lead to premature replacement. Cheers from Australia.

[@butler386]

AAHH a new problem fixed. Yep they probably were trimming under a bush and a branch went in there and bent that soup can metal. Another great catch and a new idea to look at for diagnosing. Great video. Thanks

[@sonnyc3826]

i hope this is the problem with mine..it snot a husqvarna but this is pretty much the same mower i have and probably the same problem i did eveyrthing to it..this guy is the small engine genius ..ill try this out i hope it works. i had an extra spring too and i see wher eit goes here so ill fix that also

[@johnwaynewilliamson]

Typically cranks first pull. Ran for an hour, stopped to change oil, and it refused to crank. I changed spark plug, cleaned carburetor three times, and adjusted valve clearance - no joy. Everything at rest: the choke valve was closed. Did your bend the bracket tip to forcibly hold the choke valve closed and it fired right up! TIL: I don't like auto-chokes. I was ready to toss it. You saved it. THANKS!

[@davidrucker7900]

Thank you for the great video, it solved my issue.

[@joycedudzinski9415]

Currently I was looking for a new lawn mower but I've seen people write avoid the auto choke because they fail. Before I buy I'm going to check how the auto choke is assembled to see if it's like yours since that's a visible easy fix.

[@redneckbryon]

Check the brake cable first, similar symptoms, the cable doesn't need to be broken for the machine not to start. I had an identical machine the other day similar issue but it was a stretched brake cable, it would pull over without any problems but there was no spark.

[@berardia4]

ARednecksLife yes that can happen. I have a video on that specific problem on my channel.

[@scottfirman]

I run in to that a lot. People store their mower outside and the cable rusts up inside and freezes up. Then when its pulled, it stretches and breaks the strands in the cable. After that no spark.

[@redneckbryon]

RC Hobbyist Extreme That’s the problem I had...

[@rickeykeeton71]

Bob Dylan If there is no adjustment, may need to replace the cable. I have adjusted some, if I remember correctly bending the piece near the flywheel brake that the cable attaches to to keep it from grounding out.

[@user-oq9qy3ug6r]

Thank you so much Don for teaching us this trick 👍👍👍. It was very very helpful

[@BearE9090]

I have fixed a lot of my friends small engines and its funny how the simplest things create so much problems. Sometimes you have to think outside of the box. Well done

[@michaelmactavish1728]

same mower is mine 7.25 awd but i dont like it much wheels wearing out allready darn plastic wheels and bogs down when mowing and its 2 years old and issues wich im replacing it next year with a 9.9hp honda 21'' shaft driven mower

[@camilo1455]

True. But this fix is not thinking-outside-the-box. This is std choke troubleshooting.

[@SomeBody-rm6hf]

​@@michaelmactavish1728 IT AIN'T GOT NO GAS IN IT

[@robertsparks3518]

I just ran into this problem and couldn't figure it out but that's exactly what the problem was. Must be a common problem with this model. Dk how it happened but after going thru all of the obvious things then buying new air filter, sparkplug,change oil.Thats it! Like you made the video for me. 👍👍

[@robertmailhos8159]

My Husqvarna AWD has a 190cc Honda auto choke hopefully it won't give me any trouble as always great job my Canadian brother 😀 😀

[@pk-fb2yr]

Wish i would of watched this before taking mine to the shop.Thanks for posting.

[@1811bruce]

Great tip donyboy! Thanks for all your valuable information!

[@JQPOINT]

excellent demonstration. Thank you! can you also show me how to increase the speed of the engine. It seems to be running slow in my mower.

[@penguinistas]

Great video, informative and quick. Thank you.

[@stevecox8066]

I'm gonna go check this immediately. Thanks

[@nashguy207]

Great tip donyboy. Hope your wife is doing well. Have a great weekend!!!

[@keithfrisell4271]

Great information, have a great day.

[@robw9435]

Another great video, DonyBoy. I noticed that the choke linkage has an inverted U in it. You can see this at 3:06 or 3:45. I wonder if the purpose of that loop is to facilitate adjustment to the length of the linkage. At any rate, thanks for showing us this.

[@don7406]

Great repair. The owner of that mower keeps it clean. Now I’m interested in the African Twin parked behind you. Maybe a maintenance video.

[@Kat0294]

Thank you for this helpful video! Well done!

[@eatwhatukiii2532]

Thank you for including the “symptoms” so we can use it to troubleshoot. Mine has a broken plastic part on the auto choke, where your index finger was touching at 1:37. AND the spring is missing.

[@manofculture4945]

Just replace the whole carb

[@AmericanPatriotAF]

Trying it now. I'll keep you posted 👍🏻🤞🏻

[@johnkelly7154]

Great Tip Dony thank you.

[@smallenginekid6252]

Great video I’m going to check this out tmr!

[@adamedwards2435]

He's a great small engine mechanic and even a better teacher!

[@michaelzoran]

QUESTION: My Cub Cadet mower recently had the problem of starting up on the first pull easy enough, but then it would shut off after about 20 seconds. The Thermostat measuring part was replaced. After that, the mower would stay on again; however, the engine did seem to randomly be missing beats. The new BIG problem was that the mower takes over 15 pulls to get it to start up cold. In comparison, after having run for a while, the mower starts on the first or second pull. Clearly, the factor of "Temperature" is involved in starting the mower. This mower won't start "cold" easily. The mower actually started on five or six pulls on an 82-degree day. But on a 60-degree day yesterday, it took 15 pulls to get the mower to start. Do you have a suggestion to fix this?

[@rogeliopadilla1432]

Thank's for the info. God bless you..!! 🙋‍♂️

[@darrellcopeland4461]

You are the best Dony! Thanks for the video.

[@aleblanc3547]

Thanks Don...easy fix just as you said.

[@jamesclement1406]

Worked like a charm! Thanks

[@themowerman]

Nice and simple just how we like them

[@roosar2001]

Thanks for the tip!

[@warriorsf911]

Beyond helpful. Thank you!

[@bingrodriguez]

Hello Don i have a Toro personal pace 2013 whit Briggs and Stratton motor the problem it's that i works fine mowing 2 jobs but later on gets really hard to start it i have to raise the front tires and pull it few times to start and starts really slow whit black smoke. Thank you

[@Colt3854]

Great work as usual Dony.

[@MrFireflox]

Thanks for the tip.

[@kosencamry]

Thanks Danny for your great video. Is it possible for you to make a video on how to change a wheel height knob? It’s that little hook which you pull to adjust the mower’s height. I can see your left front knob is broken like mine. I got a replacement but am not sure how to remove it. Thanks!

[@PeterTheMowerExpert]

Great job as always.

[@rickborosky9000]

genius - been at it all day - found this video problem solved!

[@Augownage]

This video helped me get all my springs and control levers on the carb back in the correct spots after a stick rammed into my carb and pushed all the springs and levers loose, and bent up my choke actuator rod. Carb area needs more protection from debris on these engines.

[@robw9435]

I agree 100%. Same thing happened to me.

[@thomasfx3190]

Good explanation on the thermostat arm business!

[@scuba6797]

Great video thanks man.

[@mrbottomfeeder]

You are the Man. Thank you. Thank you.

[@mhunt9982]

Thanks Mate.... Worked a Treat.

[@holdentoodixs385]

I hope this fixes mine I'm gonna go try now

[@bhupensolanki2501]

Very good information

[@GrampiesWorkshop]

How's she goin'? Choke not fully closed caused me an awful lot of heart ache on a Kohler Courage engine until I adjusted it properly. Nice fix!!!

[@gwendaniels5611]

Thanks!!

[@winstonclarke9221]

Good Video, Don. Thanks.

[@VirtuousPraiseworthy]

Thanks a lot.

[@johnhouli3450]

Thanks Dony, would this work on a 160 Honda lawnmower self rear propelled as well. Having same issues won’t start.

[@WV591]

That is a hard one to catch , I wonder if that's the problem on mine since the new carb didn't fix it. it used to start in one pull and it's auto choke.

[@cgmn4254]

You just saved my weekend!!

[@jamessmith-bd7hq]

Thank you

[@Sethhaun78]

Thsnks don....god bless

[@eddiefordiii770]

Thanks 😇

[@playgroundchooser]

Great vid!

[@adamelam6385]

Question, I have a husqvarna AWD 725 i think it is with the Briggs engine. It doesn’t want to start again when it’s warm because I have to stop and refuel. I assumed it was the ignition coil and changed that, it didn’t fix it. Can you point me in another direction, it also has a new plug and air filter.

[@rxlo1062]

Excellent video 👍

[@jimbarchuk]

Excellent vid. Did not know this. I have a friend with this exact problem. At 3:54 the U-bend is exactly for adjusting rod length.

[@donyboy73]

I wouldn't adjust the u-bend because it might make the linkage bind on carburetor

[@cathydugger6643]

THANK YOU

[@SeeMooreVids]

Great tip

[@fire7765]

Great job Don

[@1dwhaley]

good job

[@texasaggieproud]

Great video.

[@jmoney20psu2]

This might be the problem I ran into yesterday trying to start up for the 1st mow...gonna see if this is the issue...usually it's old gas or bad spark plug. Don't often see this type of troubleshooting in manuals.

[@isidroizazaga2786]

Very good video.