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Auto Choke Replacement On Briggs and Stratton Lawn Mower Engine
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- Опубліковано 14 сер 2024
- This video will show you how to replace the broken auto choke on your Brigg mower. This Toro Recyler Lawn Mower will not start. The autochoke is broken and stuck in the open position.
Thermostat part number 593208.
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Good find ! Very good info and thank you . One thing that shocks me with people posting on here about Mower/Engine repair ? If you have the engine that far apart why put it back together Dirty ? Would only take a few minutes to clean the carb, Blow off all the clippings under the pull start , etc . After 59 years working on engines I know they run better when clean . You did a great job finding and fixing the problem !
You should’ve labeled his video, “ Smoking Lawn Mower- Last Option!” I was about to wrap the starter cord around my neck, & try starting this stupid mower! Needless to say, this is exactly what the problem was! Mower running great! Thank you for this very informative, strait to the issue, & fix! Liking & subscribing!👍⭐️⭐️⭐️⭐️⭐️
These small engine videos take me back to my youth helping my WWII-era mechanic dad fixing small engines (mostly lawn mowers) to supplement his income. I got to the point where I could pretty much diagnose and tune up 50s and 60s vintage B&S engines in my sleep. Especially on rotary lawn mowers (do they still make power reel types?). What was often the case on non-starters was a sheared woodruff key on the flywheel from hitting a rock while mowing. But back then, they also had points and condensers which often needed to be either filed and re-gapped or replaced. Things were simpler then. And people were expected to know when and how to use the manual choke. Basic trouble-shooting hasn't changed, though. Spark, fuel and compression still makes them run. And oil is much better these days.
Perfect,just what I needed to see,thanks
Thanks James for making this video. I believe this might be my issue as well. At least I will be able to rule it out if it isn't. Always impressed by engineering and how simple you made the repair look.
Quite a nice idea for auto chokes is to heat them up with a hot air gun either to test them if in doubt or if they seem dead, to check if they really are.
Hey thanks, watching this video helped me fixed a lawnmower I wasn't sure where choke control arm went but this showed me and now its fixed
Lee White glad you were able to fix the issue.
James I have been watching all your lawn mower videos - and they are excellent. Well focused shots and very interesting and informative content. Thank you for taking time to make them.
Thanks
This year old video. Helped me greatly today. Thank you for sharing. 👍
Thanks mate. I've got a briggs motor on the kids go cart. Just picked it up cheap. It starts but won't keep running. I noticed the choke is flopping around all over the place from the shaking of the engine. I'd say the auto choke is worn out as its got no resistance. Should be a good little project for the kids anyway. Thanks for taking the time to make this video. I'll video the progress on our go cart.
Thanks for this, I have the exact same engine, when cold you need starting fluid or like 10+ pulls, when its warmed up starts with one pull, just ordered the part. Thanks again.
I just replaced one on a power washer. I cleaned the carburetor and had spark and fuel. It would start, then die. I was able to catch the choke and keep it running and that’s how I was able to figure out the problem. It seems the more fancy features also means more possible issues. :D
Yes. Would prefer just a manual choke lever.
Thank you for the video. I have a John Deere push mower with what looks like the same Briggs and Stratton engine. Mine has high idle at start up and then eventually idles fine. Cleaned carb and everything else so I will look into replacing the thermostat.
excellent tutorial...thanks for posting
I noticed that you failed to calibrate the thermostat which is supposed to to sit between the the double hash marks on front and the double hash marks on the side of the plastic choke lever.
Awesome perfect man thanks for the video
Great Video
I might not be informed about the auto choke operation, completely. Why could you not just take the old one apart clean it/fix it and reinstall the old one. I think that would have been a interesting video as well.
Excellent thanks
I fixed the carburetor on that exact model today
Stupid nonsense by Briggs when a choke cable (which will literally never break for normal homeowner use) would work 100 times better. This "auto choke" will go on if you stop mowing and take a 10 minute break even though the engine is still at operating temp. Keep pulling and all you do is flood it because the choke valve is closed when it should be open.
Hi James. Another excellent video! Question: I have a similar mower. I have cleaned the carb many times but I have to manually get the air vane just right (often wedging a screwdriver) to get my mower running ok. Any suggestions?
It’s probably not a big issue on a Brigs exhaust, however it would be a good policy to actually clean the surfaces you’re putting the new gaskets on.
Look at 5:37. See the shiny tabs They belong inside the cover. Other wise great video.
Part numbers would help
what is the factory gap adjustment when its cold?
Picked one up off the street today. Still in the diagnostic process. You have the torque specs for the head bolts and the carb by chance?
Did you just torque those muffler bolts? I thought I was bad.
I may have. Normally cannot get a torque wrench in them but I do try.
What will cause that choke not to open?
Why doesn't anyone show you how to actually adjust the choke there's two tabs on that plastic vein
Did you bother to explain the actual auto choke adjustment at the top end of the arm that engages the the vane?
I don't think so.
My says is pull and clean carb or you’ll do it very soon anyway
I have done this, but now it won't start when warm or hot.
Man the first thing I would do is blow off the grass and dirt and wash it. That air filter alone could be the problem.
Hello, sign Canada
I want to eliminate my auto choke & make it manual. I have the problem three times this summer. Any ideas ?
This engine does have version with a primer bulb. You would have to get a new airbox with the primer bulb and swap the carburetor for the corresponding one that does not have a choke plate.
Mine doesn't have that arm-style piece. It has a bracket that comes up from the middle of the muffler, and on the top of that bracket it has a round button-looking piece about the diameter of a nickel, and on that "button" it has a little lever that moves left and right. Connect to that lever is linkage that opens and shuts the choke. Do you have any instructions for that type of auto-choke system? My mower starts after 2 or 3 cranks, but then won't start again when it's hot. When it's hot and turned off, the choke stays open, but should be closed to start I think. So I think it may be the "button" piece?
I have only fixed the auto choke type in this video. It actually sounds like it is working correctly. It is not supposed to close the choke again until the exhaust is completely cool. I prefer the manual choke systems for that reason. If you have a briggs quantum engine, you can actually convert it to a primer system.
@@jcondon1 Thank you for the reply. I agree with everything you said. The more I fiddle with it, the more convinced I am the choke is working correctly. I cleaned the gas cap vent hole and will test the fuel flow when it stops raining here. Then I will get into the flywheel and see if the key is off a bit, because one time the pull cord locked up on me about a month ago when the problem slowly began to develop. I can't figure it out. Already changed the plug, gas never an issue (fresh, ethynol-free). Cleaned the carb at the beginning of the season, no issues found. It's crazy.
James I have this exact machine along with a few others you've made videos for, question. It starts on 1st pull the majority of the time. Runs like a top, cuts well and it's great. Until the hills. It barely pulls itself on a level driveway. Is there a way to check the tranny? The axles are clear, nothing is binding but it won't get out of its own way. Any suggestions would be greatly appreciated, thank you.
Frederick White-Assuming the pulley is spinning, it’s likely the belt needs tightening. Adjust the cable to pull the pulley back further. This will tighten the belt, which will increase your self Propell speed/torque. (Note that a new belt may be needed as the belt will stretch with age.)
Also check your drive wheels. Replace if tread is worn. Clean tread if tread is packed with mud/grass. Having good wheel traction is surprisingly important. Hope this helps. Greetings from Missouri.
@@robstone5333 thank you for responding. Judging by the slack I'm thinking it's probably the belt. Although it's not an older model it gets a lot of use. My buddy has a landscaping business. A backhoe, a few 0 turns, Gravely mowers and a few Toros. He can't get anyone to work so he asked if I'd help out. Sure why not. None of the local shops can get anyone to work so they're way to busy. I'm mechanically declined so it's a trial and error deal. Thanks again for your help. I'll run through your suggestions and see what I get. Thanks again.
@@frederickwhite6416 you’re welcome and good luck to you. Help wanted all over the place. They’d rather get gov money than work. I’m 60 years young and going strong, but do admit I SMH a lot. Take care.
@@robstone5333 indeed, it's too hot, too many bugs, it's dirty, it's too hard. High school kids get $150 a day under the table and won't do it. The next round of Covid is prepared and ready to go, gas prices are rising, inflation, borders open and 2 of my sons just returned and are doing a quick turn back to the far east with the Corps. Things are not going well.
Sir what is the name of the part that you replaced?
Thermostat. Part number for this mower was 593208
What ever happened to a choke lever or pull cable. They dont fail much. Huskvarna s auto choke is junk.
I with you there. Prefer the manual choke.
It's a ridiculous way of starting an engine. You can mow and take a 10 minute break and the POS will cool down and put the choke back on even though the engine is still warm/hot. Then the ONLY way to get it started (if you want to actually FINISH mowing your yard) is to unscrew the air filter,tilt it down and put a long screwdriver in the throat to open the butterfly valve and get it started again. Then reinstall your air filter. STUPID beyond BELIEF!!!
Part numbers!!!
The thermostat part number is in the description.
Your wife sure does have a nice mower now. Hee Hee.
lol! that would be the day. I saw my neighbors wife cutting the grass last summer. Was very impressed.
Why didn't you give us the part number for the auto choke? You just shook the box in front of the camera. What is the part number?
RJ Johnson 593208. It’s in the video description.
I have the same engine and the auto choke seems to be fine. I had this running last year. Any chance we could talk??
This is not an auto choke. The official manufacturer name is called a ‘choke thermostat’. This is important because there are some carbureted small engines and even carbureted vehicle engines that use automatic chokes and others that use choke thermostats. I have not had much luck finding any videos on how to set or fix the mechanism on these if they are off and the Briggs & Stratton directions are not the best
The part replaced in this video is the thermostat. It opens and closes the auto choke as the temperature heats and cools.
Lol he used torque wrench on a mower