Toro Lawnmower Choke/Air Vane Spring Replacement
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- เผยแพร่เมื่อ 28 ส.ค. 2024
- In this easy to follow video I show you how to replace the air vane spring on your TORO lawnmower.
The symptoms of a broken air vane spring are that it may be hard to start or it may not start at all.
Buy this spring here part #790849
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7 YEARS LATER!! Your vid just saved my weekend!!
Picked this mower up from my boss for free because it had been sitting for a good 3 or 4 years with an empty tank luckily. Would start with starter fluid but I finally noticed this spring was missing. Found a replacement and it starts up like a charm.
I loaned my new lawn mower to a friend. It came back with problems. I couldn't start it. Come to find out the "friend" installed a ball point pen spring for the choke/air vane Spring. Thank you for the video. My lawn mower started on the first pull after replacing the correct spring. No more loaning my machines. Love your videos!
Thanks! It is exactly the problem I have--while my spring was still on, the spring lost its tension and the air vane was just flopping around with little resistance. The engine would sometimes start then go into a rough idle and die, or wouldn't start at all. This video helped me track down the exact part. Problem solved!
thank you because this is what is going on with mine!
Not sure if this is my problem yet, but it helped me figure out where the spring went when I accidentally knocked it off while troubleshooting! I went ahead and ordered the part regardless!
Thank you very much for that information. I just spent $70 to have mine repaired because it wouldn’t start. Now I will know what to do when this problem happens again.KUDOS!!!
Hi Donny,
This is a brilliant video to help solve what could mean an otherwise OK engine not working and is something I had a problem on when ‘volunteering to help a friend mend his lower while he was at work. It was confusing because I had not seen this kind of thing before. Their not that easy, when I did not know what the part was called, but after a full day checking stuff online I found what I wanted.
Take care to both you and your wife
mrbluenun
Perfect. Excellent illustration, I had the Briggs diagram but the connection points weren't obvious. Well done.
Just the info i needed.
The video was perfect. Thank you!!
Thanks for the tip, Don. This one a wasn't very obvious to the laynan's eye, so it just gave me a little bit more knowledge on how to assess a trouble engine. I appreciate it!
Excellent images and explanations! Thank you
Thought I was going to fix mine after see this great video. Butter fly is open but spring is intact. The butterfly will not shut even by hand. Almost like the flapper may have spun on its rod if that's even possible. Will start if I use starting fluid. It's a no prime carb also. Always been hard to start.
Great video Don! It's always nice when you can fix something without having to buy lots of expensive parts. Take care :)
Great video Donny! Funny, I just made the same repair to my Toro Recycler. Thanks again.
thank you for this. I found this mower in someones garbage, put a temp spring on that just failed.
Once again brother you have bailed me out! Thanks Donny
Thanks so much! I was about to toss my beloved Toro. She lives to ride once again!!
Donyboy73,
Love your videos. In the video, I wish you have shown the symptoms first and how you figured out that the spring was missing.
Great video! To the point...without being long winded👍.
Good stuff. There is a lot of science in springs. The OEM ones are designed for each purpose.
Bruce
I didn’t buy B&S brand at first. I bought a off brand lasted one season. Back in business with orig. spring from B&S.
Thank you, great!
I know I'm missing this spring (and the gasket between the air filter and the carb) Good to know it's this important and why it's not functioning correctly post carb clean. Just another 10 bucks or so for those 2 pieces and I should be back in business.
Great video on the spring for the Briggs Auto choke. Could this be the problem that I am having on my Power washer with the same type engine. I cannot start it unless I use starting fluid. It is only 3 yrs old. Thanks your sight is great.
Thank You for sharing ! I am always fixing things myself .
Great info Don!
Alan Marshall thanks
I was just chucklin in the beginning as it says "guaranteed to start" lol.
Awesome tip. I had one that had this exact issue.
On these auto-choke engines when you take the muffler there is a thermosat there and it falls off , the thing about it is they never run right after word. on mine i rubber banded the plastic leave and the metal lever together and when i put the muffler back on i rubber banded the metal levar forward and itll run perfect. Even with the auto choke thing rubber banded forward it still starts just fine for me and i use it commericaly. The funny thing is the auto choke also works VIa wind.
Thank you, buddy,
I went on and on so many you tube,----your's is the best you saved me money. Thank you so much Gob bless America has lots of honest dudes .thank you again
Namaste Hare Krishna.
Would like to see a video on replacing the belt on a personal pace Toro with rear wheel drive. Lots of work when I do it.
Hot start after dumping the grass is where Im having trouble with the auto choke
Excellent video. Thank you for posting this helpful video. My near new Toro mower simply will not start with the butterfly closed. The spring is installed but looks stretched out. Will use the link you posted to buy another spring.
However to start my mower I need to open the air filter housing and using a screw driver force open the butterfly valve open then the mower will start and runs okay . Any thoughts on that repair?
Thanks!
You the man Danny boy... 2 thumbs
Exactly what i needed. so im showing some comment love
Good video Don! Have a great weekend.
Thanks, couldn't be easier..
Does it need the thermostat or no? Cuz i got mine used and it was broken. I do have the spring and lever and has tension. But everytime I turn it on, it's on full throttle, engine rpm at max.
What could it be?
Any idea why? My mower was missing the air vane spring like you mentioned. I added the spring 790849. It started right up..but would not stay running. The choke was not opening. I replaced the factory spring with a 9/32" x 2 1/4" x .026 " spring. (Commonly called an SRM 20 size extension spring.} After this replacement, the mower starts just fine..runs fine..and starts when it gets hot as well. It seems to have solved my problem. Any idea why the correct 790849 spring would not work? I'm really curious as to why it would not. Thank you sir... in advance.
Also same on similar Troy-Bill self-propelled. Grateful for your tip especially the part # of the spring!
What is the plastic arm of the air vane connected to on the other side of it? I have the spring and everything looks good, but there is too much tension on the other end of that plastic arm. It's inside the housing and I can't see it or get to it, but it feels like something is obstructing it from moving freely. There is too much tension for any spring for the choke to close off. I can manually close it with a screwdriver by pressing it and the mower runs great. I remove the screwdriver and it instantly dies.
great video donyboy. This is a good time to replace your air filter if it is dirty
James Mullins yes for sure
I think I'm missing this spring. The other one is there. Thanks for the video. Hey but I broke my air filter cover when the mower ran it over when I had it loose to spray starting fluid in. Got a part number for that? Mine looks like the same mower.
Don, Do you use a hydraulic lift table for working on mowers? I got one from harbour freight here in the U.S. similar to the one Bruce Pender uses. Makes a huge difference and saves your back.
Donny:
long time subscriber. I just did this repair & mowed a section of lawn. After heat up and choke wide open I shut it down (would not restart) and then had to wait for it to cool down so choke would go back to position. Is this correct? Do you have to wait for the motor to cool or is their an adjustment I am missing? Thanks Danny
I have this exact same problem. Thanks!!
Is there ever case, spring too tight and vane not opening after startup to release choke? I ended up stretching spring a little bit to have less tension? Thanks
I have the older version 6.75 190cc which the butterfly is stuck wide open do you have a video on that model? is there a spring somewhere that is broken or is setup different
Hi. I don't know if you are still active. Thanks for a great, clear video. My question: I have an old Snapper with a very similar (?same?) B & S motor. The previous owner stripped out all the autochoke-don't know why. Adding it back in, there is no tab to attach the vane spring to motor (hook on vane itself is clear from your video). Do you know if this is the part called the Cylinder shield (could be B&S 690836 or 790836); this was probably removed from lawnmower also. Thanks
Thank you for this video
Have a 21” toro commercial mower with Honda gab 160 and it runs 90% of the time but sometimes it surges up and down until it quits, it will starts but it quits again
Continue - and it quits, I leave it for 15 minutes and I can finish mowing
How old is the that model an how long did that part last? Ty great vid tu
another great tip right on buddy
Hi liked you video, I have the toro 6.75hp briggs and straton engine, same spring. problem I'm having is cleaned carb and new air filter fresh oil when stating seems to pop then start and runs fine. Just on the start does it do this. any idea's
Good fix don!
Hello, I have the same engine, it does start on first pull in summer, but in fall or under 45-50 degrees it harder to start, 4-5 pulls, and then it starts but almost stalls and comes back at the last minute, is there any adjustment to make it start Easyer when it's cold? Thanks
AS ALWAYS INVALUABLE...
What is the OEM part # for the governor spring on this mower
How do we contact you with a similar model with primer bulb
Another machine recovered :-D
I would want to put a blob of rubber solution on each mounting point to stop that pesky spring vanishing again lol :-)
zx8401ztv looks frail doesn't it
donyboy73 Yes it certainly does, the point near the engine looks like a 90 degree tab, and it does not move, but the moving arm end could do with a small zip tie to keep the spring in.
Whats your fix don? :-)
That is nice to know and I will remember that just in case I have that problem on my Craftsman mower. I have a question about the Kawasaki engine I have on one mower. It will start and run temporarily, then you can tell that it is losing power and about to quit on me. What can that be? It will restart and do the same thing for me. The mower is a Zero turn and made by John Deere. I am tired of paying the repair shop over $300.00 dollars each time it goes to the shop.
Sidney Mathious clean and adjust the carb
Okay. I will do that and thank you so much for the information.
Sidney Mathious maybe a carb kit would be necessary, i'm sure Don has a video on that.
I have to go back and review the videos and I have reviewed some on cleaning the Carb. Thanks for the information.
i dont get it..i have the super recycler 19cc 6.75 and theres no lever like this one has at all theres no second spring or anything or a place ot even hook it up to like he did if you have one of those models please show ..mine starts but the choke either stays completely open or closes fully and stalls. mind you im pretty new to small engines..it worked when i got it but had alot of white smoke i fixed that but broked a small part on the carberator the one spring is there but that whole handle and place to put the seocnd spring isnt..if i just say the exact model i have id know theres soemthing missing but i dont think there is because as i said it worked when i got it but maybe it stalled also because i shut it off with all the smoke...but the lever with the thin bad worked now it doesnt
I have bene trouble shooting my lawnmower and this spring seems to be the issue with my engine, however, my spring is still there and intact...does anybody know if with time (mower is a little over 4 years old) these springs just lose their "springiness" and become slack?
Can anyone help me. I have a toro time master with a Briggs 190cc engine. It has a thermostat on the muffler and links to the carb choke lever. For some reason when it is cold or sits for 20-30 min the choke plate/linkage goes crazy and flaps open and close and a very very fast rate and runs like crap until it warms up after about 5 min.
I’ve searched high and low but can’t figure it out. What would cause the choke flap to violent flap open and close!?
I have a Briggs 4.5 and it modulates for 30 seconds or so and then evens out. Could this be the spring causing the trouble?
under carb loosen screw soak I cola for 20 min put back together change plug and filter new gas good luck
thanks...
There is a second spring you can see in this video @ 1:15. Can anybody tell me what that spring is called? I need to replace it on my mower of this same model.
The governor spring
Cool
Kool donyboy73. I am the first like.. lol
OC_VILLAIN thanks, have a good weekend!
I have a 12hp briggs and stratton engine runs only with full choke. what i is the problem. engine nr:281707_0028-1?
Jimmy Larsson Sounds like it has a fuel starvation issue, does it have an adjustable screw at the bottom of the carburetor holding the bowl on? will it idle without choke? most commonly the passages in the carb plug up and they need to be disassembled and cleaned out. I have a 12 HP B&S as well and it is very picky in that department.
1972FordF150 Yes, it´s an adjustable screw at the bottom of the carburetor. I will try to adjust that screw. thx for the help!
There should also be an adjustable screw for the idle on top of the carburetor, it's kind of hidden by the air cleaner mounting base. But, you should be able to see it if you look for it. If it has the old style carburetor. It should being it's a 281707, same model as mine. I use a pair of needle nose pliers to adjust mine without taking off the air cleaner base.
Okey, Thanks. I will try these two things.