How to fix the Kohler Solenoid Problem the Right Way

I saw a few videos out here on KZbin on how to disable the solenoid, but this here is the right way to fix it.
The old solenoid has the problem, that it overheats and then it gets stuck in open, or closed position. That means your motor doesn't start because it gets no gas, or it backfires, because it doesn't shut the gas off, after the ignition is off.
There is also the possibility, that it gets stuck between open and close, and that means you probably do not have enough power in the engine, because it is not fully opened.
In any case, a new solenoid alone will fix your problem only temporarily, because the new solenoid will overheat again, and then depending on the quality and the specification and the temperature, it will fail on you again.
You need to install a heat shield to protect the new solenoid from the heat radiating from the exhaust pipe and the engine.
In this video I show how to install the Kohler Solenoid Repair Kit.
If you are interested how that kit looks like, then you may watch the unboxing video right here: • Unboxing Kohler Soleno...
If you want to know, what happened to the original solenoid that failed, then watch this video: • Kohler Courage Single ...
In any case, please feel free to comment, rate, and subscribe.
Enjoy!
OK, one more thing. This kit is available for more or less money. I recommend to spend some time to search for a good price online. I was lucky to find the kit shown in the video for $35. And i hope it lasts forever!
And if you have already the heat shield installed, and you just need the solenoid, you may consider finding a whole new carburetor with the solenoid already installed. I found a brand new one for $37 on Ebay.
This engine was used in mowers from Husqvarna, Cub Cadet Yard Machines, Craftsman, John Deere, and maybe others.

[@mygiguser]

A quick update after 8 years: the solenoid broke again. I think this time it is the rubber part that is getting old. Need to open the valve and look, but in the meantime it flooded my engine. I had to do an oil change in order to avoid engine damage. Check your oil level before you ride, especially when you encounter a lot of smoke when you start the engine!

[@GY6SCOOTERCHAT]

Do you have a link for the heat shield kit? I can’t find it on ebay

[@joshuadempsey3449]

I have recently come in to possession of the same mower. Thank you very much for taking the time to create such an informative and complete video. Right now I am a solenoid and two rear tires from hopefully getting this beast back into operation.

[@davidhollingsworth950]

I didn’t have a solenoid issue but a problem with my Husqvarna YTH21K46 surging. Your video is the absolute best on KZbin for accessing the carb, removing the solenoid and putting everything back together again. Cleaning my carb and replacing all the gaskets fixed my mower, but I’m still saving this video for future reference. Thanks!!

[@ryankylesmall]

Thanks for this video. My local dealer gave me what I thought was the wrong part but your video confirmed that it was indeed correct and your procedure was spot on.

[@outdoormaniac9951]

This is the ONLY video that shows the rear carb stud proper placement. THANK YOU!

[@supermas3]

Thanks for the video. Ordered the kit, followed your instructions and the mower is back and running properly. This worked perfectly on my Husqvarna yth20k46.

[@chuckdamage]

same here!!!

[@gbnomore3918]

Great info, very helpful. Got to love KZbin! This beats calling down to Home Depot and talking to some ding dong in the rental department to try to get an idea of what the problem is.

[@madcyborg]

I have a scotts LT1742 that has been sitting for 5+ years.. This same engine had a bad carb solenoid go bad. Before, when I was not as mechanically inclined I just bought a new rider.. Looking at it for years.. it's time to replace the carb and studs, literally just like You did in this video... Thanks for posting.

[@jkmiller5683]

Well done video. I completed the solenoid replacement on a YTH21K46 according to the video and everything worked - especially the mower cranking and running after i finished! :)

[@kateryleyronfletcher2065]

Thanks for a great video - fixed our starting & backfire problems. Yay!

[@zackk695]

What a great video! I love seeing it in fast forward. Brilliant

[@butchs.4239]

Nicely done on the video. I'd still add an inline fuel shutoff between the tank and the carb as the solenoid only blocks off the main jet leaving fuel in the bowl. I prefer to shut off the fuel and let the engine run till the carb is dry before putting the mower away. It's also handy when you need to remove the fuel line from the carb as you can do so without spilling fuel all over the place. One other suggestion, if your mower is running hot remove the shrouding and clear all the crud out of the cooling fins. You'd be amazed how much stuff can get trapped between the block and the sheet metal, reducing the motor's ability to cool itself.

[@supermas3]

Thanks for that piece of advice Butch. Would you let the use the shutoff for normal operation or just at the end of the season?

[@sdc8888]

Where is the shrouding and cooling pins? Also does it matter if I put the fuel turnoff valve between the tank and fuel filter or the fuel filter and carb? Thanks

[@FisherCatProductions]

​@@sdc8888 Always put the shut-off between the tank and the fuel filter. That way you can turn off the fuel supply when changing the filter.

[@flyjoh6006]

Thank you very much did a great job with out all that talking like some do on KZbin great job 👍

[@sandhollowhomestead6972]

I just sub'd. Funny I just ordered a new carb kit too. I may also have to replace safety switch but I'll know more when the kit gets here. Old mowers made new again.

[@sheltonbailey5132]

Thanks for posting this. Well done and concise.

[@chuckdamage]

Thank you! I don't even know how much money you just saved me

[@mygiguser]

Welcome, that's what KZbin is for. And you are not alone with your solenoid. I just walked by my neighbors, and his John Deere had the same problem ...

[@rickd3852]

Thanks for the good information about fuel issues I've been dealing with for years. Good mower, but every spring I have been changing parts only the have the same problem next mowing season. Nice job of troubleshooting the solenoid Mr. mygiguser. Appreciate your effort and intellect!

[@Lulanda93]

These engines have so many issues it blows my mind that Kohler has not been sued over a the bad design. Be sure to check the sump bolts up under the top blower cover, if they come loose it will crack the case and you’ll need a new engine. When I service these engines I remove them clean the oil off threads and install red locktite then torque them to spec.

[@MrFordguy73]

Is it mainly Kohler's single 20/21hp engines? I'm looking at a bad boy 54" with the 26hp twin and wonder if they fixed previous issues?

[@tonyandhelen8126]

I'd rather pull the solenoid and clean it with PB Blaster. Just did mine, took less than 15 minutes. Good vid for those changing it the whole carb out. Surprising that they're only around $20.

[@jazalessandro3094]

Yeah agree heap easier on time saving but good vid for those that need to do the carb. if krud got thru 🍻

[@campmein]

This was an awesome video... “GREAT JOB AND VIDEO LOOKED GREAT TOO. THANK YOU SO MUCH. May you have a blessed day, every day. 💫💫💫👏🏻👏🏻👏🏻

[@mygiguser]

Thank you much!

[@thomaselam6006]

Great video!

[@nefiguzman]

Thanks for the video, I followed the instructions, all the problems get solved. The first time started as champ but then i need to use starting fluid to turn on the tractor. Do you know what I could do wrong?

[@THEOGGUNSHOW]

Thanks, this was a big help!

[@TheMustangStampede]

Can confirm this part worked great for cub cadet ltx1045 with Koehler courage 20, ordered from amazon. 32 bucks

[@maguirk]

I own the same machine. Any chance you have the link for this kit on Amazon

[@thomshere]

Thanks a lot for this!

[@trentonjennings9105]

Helpful video. I just finished this same repair after watching this video and using the instructions included in the kit. I would add that you should plug the connector of the new wiring harness into the solenoid socket before tightening the nuts to the carb because there will be very little room for your fingers otherwise. That step seemed to be missing from the written instructions. The plug appears to fit either way - i.e. apparently without regard to polarity (or I got lucky). My mower cranks right up now.

[@mygiguser]

Yeah, i did connect the solenoid wire before i tightened the nuts. That was in the part of the video that was running fast ... Thanks for your comment!

[@israelantoniolopez6082]

mygiguser para mi tractor

[@mygiguser]

OK, i checked mine. Even though the plug is keyed, it fits in both directions. I measured the internal coil against the metal housing, and there is no connection. And that means, that it doesn't matter which way you connect it. You have a 100/100 chance to get it right! The original solenoid was different, one of the pins was common ground with the metal housing of the solenoid.

[@robertgarbee9287]

Trenton Jennings

[@EliminatorPerformance]

Good professional video, always nice to see the proper way to fix things! Using some metallic heat tape will also prevent this issue, and be a little less costly. Cutting the solenoid tip off works too, but as you said, it can still Backfire. Normally I would just throttle the engine rpm down to low, then shut it off. That usually that prevents the backfiring when the solenoids are cut. Cheers from Ontario Canada!

[@pattayperformance]

Just got my first one of these motors. It’s here for a no start. Was wondering if I could cut the tip like I usually do in Gensets. Thanks for the info…also going to install an inline fuel shut off valve. Troy Bilt Bronco! Thanks for taking the time to comment on the video! 🔧🇺🇸🤙🏻🦅

[@patrickrafferty9156]

Great video ! I have the same engine, great for people who likes to tinker for sure lol!

[@mygiguser]

A quick update after 7 years: this solenoid that i installed here in the video is still working fine. I think that heat shield really works, and did the trick. Now, i live here in Michigan, and i don't know how this will work in hotter areas with more grass and heat, but for my mower here it is working great.

[@hodges-hg6ck]

I just ordered mine. I sure hope this fixes my problem.

[@MortonLuvz2drum]

I just removed it. Thanks.

[@johnd5805]

Thanks for the explanation. Now I know why it doesn't start when it gets hot. The supposedly lawnmower mechanic I brought it to 6 times apparently needs more skrewling.

[@allenmckinney9533]

John D no he just likes your money.

[@johnd5805]

Yes that to. It's a friends mower. I actually found out that he already cut the solenoid end off previously and that it was WATER in the gas can cuz the can had a crack in it at the top. Long story short after hours I just picked up a new carb. I don't think that was the first time there was water in the gas.

[@suzieq8379]

same here so i started doing it myself

[@Lario]

Nice video. I searched and could not find a replacement part for mine. Kohler SV600 I found a near original part for $90 which is crazy. I did the cheap bypass.

[@mygiguser]

What do you mean by cheap bypass? Cut off the solenoid, and then what?

[@redneckracers2360]

@@mygiguser I Think He Means He Cut Off The Solenoid, And Then It ran. Thats What I Did With All Six Of My Tractors. In My Opinion, Its Alot Easier, And Free To Do.

[@benleaper6451]

That Solenoid is an Anti-Backfire Valve. It has a little plunger that engages and shuts the gas off so it doesn't backfire when you turn the key off. If it ever quits working, cut the plunger tip off, screw it back in if you don't care.

[@JasonSmith-utube]

This is what I always do to mine. I've done it on several mowers now. One other problem I ran into was the solenoid will get loose around the body of the actual solenoid where it's threads start, and it will start dripping gas. The best solution is to find a fine thread bolt, like an oil drain plug with a gasket. Make sure the bolt is short enough, cut it if need be, add the gasket and just basically seal the hole up with the plug you made. By reading these comments almost everyone on here has no idea what that solenoid even does. It doesn't shutoff the fuel flow to the carb bowl from the tank. And it doesn't help with starting faster or easier. The reason the fuel doesn't stop and floods the engine is because your float valve is sticking. All the solenoid does is stop it from backfiring only when you shut the key off. That's it.

[@toxrozzx8158]

Nice video! Have the same problem with our oldest Stiga Park lawn mower with a Kohler motor, and it backfires like crazy with flames and every thing haha.

[@erirgner]

I have been trying to find the same gasket kit that you have in this video. Do you have a part number for the gasket kit? Everything else worked great. I had to try some other gasket methods to make my mower work.

[@mygiguser]

Eric Riegner the number is in the gasket video (link in the description)

[@jerrycoile338]

I enjoyed your video however, when I replaced mine I had to prime the carburetor first time and eventually it would run but, it kept surging high and low. I tried to adjust the screw on the front and it got somewhat better but, it is so sensitive to adjust. My old unit had two adjusting screws. I wish you had shown how to adjust the carburetor.

[@johanh2319]

Has he answered your question? Unfortunately these are non adjustable other than a high throttle setting or that idle adjust on the side of the carb with a cap on it, if they come with it. Most machines I've found I have to have choke partially engaged to make up for the fuel/air adjust. Depending on carburetor condition even after multiple rebuilds!

[@mygiguser]

Product link in the description of the video! So many people asked for it...

[@thomashoward9806]

The solenoid can be cleaned and check by plugging the switch line in, ground the solenoid, if it clicks it's ok. Cleaning it first and check if the spring is working on the plunger.

[@billyhannon8244]

I missed it all .please stop......

[@carlthornton3076]

Very Good!

[@JaredAkers]

Amazing video. I have a cub cadet xt1 lt46, which I believe has the 22-HP V-Twin KOHLER. After about 4 years, now when the mower get's hot (about 15 minutes into running) it stutters and stalls out - like when you're trying to mow too thick of grass that's wet. Not so much when it's colder out, only when it's warmer in late spring/summer. Acted like bad gas or fuel filter.. I've literally changed everything I could thing of, EXCEPT for the fuel solenoid; plugs, gas filter, ignition coils (twice) and made sure they're spaced correctly. Nothing has worked. Ordered the Kohler OEM Engine Repair Kit Solenoid Fuel Shut-Off kit from amazon. Hoping this is it.. and your video works for guidance on replacing mine.

[@JaredAkers]

@@RPSGT88 I ended up ordering an new carburetor that comes with the solenoid, have yet to install it to see if that fixes it.

[@JaredAkers]

@@RPSGT88 new Carburetor didn't fix my issue. Runs fine for 15 minutes until it gets hot, then stutters and stalls intermittently. The guy I ordered the carb from suggested it may be my clutch. I'm not sure I even have one... 2015 Cub Cadet Xt1. Can't seem to find a clutch on any schematics for my model. Assuming that means is a manual PTO. I guess.

[@jerrollarrieu303]

@@JaredAkers My Cub Cadet is doing the same thing. Did you ever solve your problem. Thanks

[@JaredAkers]

@@jerrollarrieu303 no. Tried about everything. Even running a lead directly from the battery to the positive wire on the solenoid, still stutters after it gets hot. I’m waiting to get through my current can of regular unleaded and go back to premium, it seemed like it ran better on premium… although I’m not 100% sure on that.. lol just trying anything.

[@toxrozzx8158]

At the point where you need to put on the new heat shield, i saw a hose going from the transmission to somewhere. Then I thought it wouldn't fit but ended up fitting like a f***ing glove! Cant even fit a nail between, ahaha. And now im just waiting on getting some carb cleaner :-)

[@TerrierToughGuy]

Everyone has these nice clean mowers. Mine is dirty as all hell but I am mowing 5 acres of pasture with this machine meant for a yard.

[@mygiguser]

Rich P i just moved here, and in a few years it will be as dirty and old as yours. Hope the Kohler engine makes it that long.

[@stoneyswolf]

A hose does wonders. It's a lot easier to get wet grass and dirt off rather than wait until it's dry.

[@davemeeker7185]

The solenoid isn’t polarized: connector went in either way. There’s a small gasket for the solenoid that was with my kit that isn’t shown on this video. Great video!

[@yourbabyboyfriendonlyme2485]

IT IS TOO POLARIZED! I HOOKED UP THE POS AND NEG. AND THEN NEG AND POS. THE SOLENOID PLUNGER WHENT DOWN BOTH WAYS. SOO DO YOU HAVE SOMEHTING TO SAY?

[@georgespangler1517]

My push mower did it and I just grinded off the plunger and put a shut off valve on like the good old days

[@michaelbishop1863]

Hey bro. Great work. I'm working on my dad's right now. Can you help us. We put a new carb. And silo. On and forgot how to hook up the red wire and black wire on the plug in . Does it matter which side does the red wire go and the black wire or can it go to either one

[@mygiguser]

well, black is ground, and red is power.

[@cleanmazda2345]

Thanks for the video! Will this solenoid be fit in KS540 engine? Seems CV engine in the video.

[@mygiguser]

Very much possible.

[@BlettzaHrekleW]

I have 2008 troy bilt bronco with this engine and it was cutting out after running engine for about 25 minutes, so I had the solenoid repair kit and replaced all gaskets, solenoid and it still cuts out like it's running out gas within 25 minutes. Not sure what else to do except cut the plunger off solenoid so it cant do this. Any suggestions?

[@jstinnette]

I bought the kit on Amazon but my heat deflector is different than yours so the kit won't work. Mine doesn't use a gasket with a d-shaped hole

[@Syxx423]

This video has me intrigued. I have a 2001 Cub Cadet 2166 with the 16 hp Kohler Command engine. When it's hot out, and I have been cutting for awhile, the engine sounds like it kind of misfires. It's rather subtle. If I throttle down it doesn't idle as smooth as it does when it's cooler. If I turn it off and on again, sometimes there will be a puff of black smoke out of the exhaust. That tells me it has to be fuel. Sometimes it may even stall when starting up again. The engine itself runs great until it heats up enough, and that's only on real hot days. Also, sometimes when I turn it off at low idle, it will backfire. If I turn it off at half throttle it's fine. If I am doing other tasks, and running at about 1/2 or 2/3 throttle, it never has a problem. It's just on hot days, running full throttle while cutting for an hour or two. I've been stumped for so long what it could be. Could it be my fuel solenoid?

[@mygiguser]

That is very much possible. Puff and black smoke means too much gas, but misfire means not enough gas or missing ignition. If the fuel solenoid doesn't close, then the gas can flow into the carburetor and flood the engine. If that only happens, when it's hot, then maybe that's your problem. I would say it's worth a try.

[@Syxx423]

Thanks for the reply. One time after I was done cutting the grass on a hot day last year, I turned it off like I always do to clean the deck off with the air compressor. After I got done and started it back up, it stalled on me driving to the shed. I had to use full choke, on a hot engine, to keep it going. I didn't like that, so I turned it off and let it set for a couple minutes or so. It then started up like normal, and I could finish driving to the shed. It hasn't done that since. Does that sound like it could have been the solenoid? After viewing your video I went out to the shed to see if I could hear the solenoid clicking. I never noticed before, but when I turn the key, there is no clicking sound from the solenoid. My 2166 has about 500 hours, but I keep it clean. This odd issue has been driving me nuts for a few years now. lol

[@mygiguser]

+Syxx423 yes, it should click. If it doesn't click, then it's not fast enough. And who knows if it opens and closes all the way.

[@mygiguser]

+Syxx423 did you see the video where I took my old solenoid apart? kzbin.info/www/bejne/sIa6doFojaiIqNE

[@Syxx423]

Yeah, I saw that video. I found it quite interesting. I will keep it in mind when I get around to changing the solenoid. I also saw your unboxing video of the repair kit for your machine. The repair kit that I found that appears to be for mine is a bit different. The solenoid is shorter and wider than the old one. It also doesn't seem to come with a heat shield or any gaskets like yours did. I hope the new Kohler design is more durable than the old one. I'm surprised how expensive such a small part is.

[@chuckr8727]

Can you tell us which type engine is on your machine? My Troy-Bilt Bronco has a Kohler 19HP Model number PS-SV590-3220. Also, how did you determine which kit to buy? Thanks

[@mygiguser]

I have SV600-0024, and i checked the kit number with the website where i ordered the parts.

[@chrishasty1444]

Thanks for sharing. What I don't get is why the rear carburetor stud doesn't thread to the engine. It's really a flaky design and makes it a huge pain in the neck to install the carburetor if you don't have the OEM gasket.

[@mygiguser]

i know, it's a great design.

[@ronaldwade5167]

The solenoid for a sv 620 kohler has changed so i ordered a new carb that comes with a solenoid. I will install the new carb is there is any problem with the solenoid. .The carb with solenoid was as cheap as the solenoid alone.

[@tonyfitzpatrick4977]

Thanks!

[@bigal7255]

can you show where the carb linkage attaches properly back towards lawn mower ..thank you

[@kevinshoemaker1466]

Where can I buy a new solenoid kit and be sure I get all the parts (including heat shield)? I have a Craftsman riding mower with a CV490 Kohler engine.

[@mygiguser]

I got mine here amzn.com/B00CSBQVL6

[@kellonpitts2650]

Was the heat shield behind the card another Kohler later add on just like the bracket on the lower valve cover assembly? Mine doesn't have the heat shield and I have the exact same engine.

[@mygiguser]

The heat shield came with the repair kit.

[@mygiguser]

kzbin.info/www/bejne/mYG2mGaonq6sf5Y&

[@stratster119]

At 2:24, when you remove that solenoid from the carburetor, where can I buy that piece? I've looked everywhere, but can't find that standalone piece with the wire attached to it. I too have a Husqvarna tractor with what looks like that Kohler motor. (PS-SV600-0024 to be exact). I just want to replace that piece, but can't find it. Any info would be great, thanks!

[@mygiguser]

www.amazon.com/Panari-Solenoid-Carburetor-AM128242-AM128816/dp/B077VLG3GR

[@Robc509]

Hi. I've recently got the problem of my engine surging and backfiring. I've cleaned the carb as best I can but it's hasn't fixed it. Could this be caused by a faulty solenoid?

[@mygiguser]

Robc509 not really, backfiring when you turn the engine off is the solenoid, but surging is something else. Maybe you have two problems at once. A missing heat shield could cause surging, if the engine is extremely hot. Gasoline boiling, and bubbles causing the surging.

[@jimbaranski4687]

I just replaced the carb on my engine. I hope I got all the bits & bobs in the right place! When I tested both the new and the old solenoid by touching them to battery terminals (both polarities) both of them seemed dead. I expected them to click, but no... The old one seemed definitely stuck, while the new one had a removable pin and spring. What could I be doing wrong? I actually have not tried running it...

[@mygiguser]

Jaimes Beam remove the solenoid and test it on a battery, make sure the battery is charged and has the right voltage.

[@jimbaranski4687]

mygiguser As stated above, I tried this, and both solenoids appear dead.

[@jazalessandro3094]

@@jimbaranski4687 bought one is faulty,do a meter test!

[@jimbaranski4687]

Jaz Alessandro I ended up cutting the solenoid pin off to disable it, and using the old carb!

[@jazalessandro3094]

@@jimbaranski4687 cheapest way good stuff 👍 Just did one now to a kohler courage that decided to not start now,lol 🙄

[@altheone1047]

Well that’s great you had to fix the lights too and make a clicking noise awesome job what the hell is the proper way

[@mygiguser]

?

[@SteveZ-yd6em]

What was a bad solenoid doing? Was it intermittently bogging down when the blades engaged?

[@mygiguser]

backfiring when turning off, bad startup, carb flooded engine, gasoline in oil

[@ntj030885]

Did you have to use the old gasket with the new solenoid or did the new solenoid come with a new gasket?

[@mygiguser]

Nick Jones the kit has new gaskets

[@latinsmooth3050]

Does it matter which way the connector on the solenoid goes? I noticed it’s squared on the bottom but the wiring harness is different. One side round and one side squared. It all came together in the kit. Noticed the old one is the same also

[@mygiguser]

Walter Chavez probably doesn’t matter

[@latinsmooth3050]

Great video by the way. Found the kit with the heat shield also. Issue resolved

[@marycatherinegohde5152]

@@mygiguser It probably will reverse the polarity of the electromagnet reversing the direction of the center pushing probe when energized....up (off) instead of down. The probe needs to spring upward to shut off the gas feed when not energized. The local small engine shop wanted $92 plus 8% tax just for a new solenoid for an 18 hp Kohler. A brand new complete carb is on its way with all new: inline filter, solenoid, 2 gaskets, wiring harness, even a zip tie...and free shipping for $17.22 plus 1.38 tax, or $18.60 total. (NewCarb in New Jersey) Ships from CA.

[@phildenucci9681]

What were your symptoms? Mine dies under PTO load after about three minutes. Great video.

[@mygiguser]

misfire, and gasoline running into the airfilter, flooding the engine

[@JasonSmith-utube]

If your still having issues with this, I know it's real old reply. Your issue is with your governor. Look for videos on how to adjust it or look for broken or missing springs on linkage or lever.

[@phildenucci9681]

@@mygiguser spring is finally here in WI. I will take a look. Thank you

[@0007rmoore]

How did you keep the right bolt for the carburetor from sliding backwards when installing air cleaner base?

[@mygiguser]

The engine is holding it back, i can't go far!?

[@0007rmoore]

I guess my engine does not hold it.

[@stephennichols4815]

The gasket between the spacer plate and cylinder should keep the stud from going back you probably have a bad gasket that was old and brittle and it doesn't take much to break it when reinstalling the carburator

[@sinnerface1]

where did you get that new heat shield from? TY!

[@mygiguser]

came with the kit

[@andreduguay1627]

Good job on the video. Maybe you can tell me if it would cover my problem with my 25 horse Koehler engine. When mine gets hot it refuses to start. It doesn`t "click" it just turns real slow for a second then nothing. If I let it sit for a bit it will fire up again like normal. I've always had to use the choke to start it, even when it's hot. Last year my dealer told me it was the valves that needed adjusting. They did it for $160 and it worked well for a year, now it's doing it again. I've changed my battery, starter and ignition switch. Do you think this solinoid fix might be a good place to go looking forward? Thanks for the help, you do great service for us little guys. Never mind the negativity from the jerks. You can't please everyone

[@ninemilliondollars]

Do you smell gas when you attempt to restart it when hot? If you do, pull the spark plug and see if it's wet. If not, then the engine is probably not getting enough fuel which seems to be the case since you have to choke it when restarting all the time. The carb float could be stuck with a bad solinoid. Check the solinoid by unscrewing it and turning the igniton on/off and see if it moves. It should. While doing that, empty any dirt from the carb bowl. Good luck.

[@ninemilliondollars]

Forgot to say as mentioned in another comment, spray a cleaner (PB Blaster) on the solinoid and that may save you from buying one.

[@peterkellen1549]

Squirrels chewed through my wires, does red wire on solenoid attach to long wire coming across top of engine from magneto?

[@mygiguser]

It goes to the engine connector, and from there to the key switch. It basically gets powered up when your turn the 'ignition' on.

[@davidchall7684]

Thank you x1000

[@DrewsBackYardMechanics]

Can you post links to the parts you used

[@gbnomore3918]

The solenoid on my engine has very little clearance between it and the fuel bowl. A standard wrench it's too thick to fit in there. Any suggestions on options? I'm not even sure what size wrench it would be. Yours appeared to have much more clearance. When I tried to just turn it by hand the solenoid exterior started to turn but the threaded part did not.

[@mygiguser]

GB NoMore the solenoids are all different, it is not very tight, maybe grind down your existing tool, or get a cheap thin one

[@gbnomore3918]

@@mygiguser okay thanks. Yeah I can't even really see to judge the size. I'll guesstimate and give it a try. I'm not really having a problem with the solenoid, the carb needs to be cleaned out. Thanks for letting me know I appreciate it.

[@lynnegudat7605]

@@gbnomore3918 1/2 inch open end

[@robertzeurunkl8401]

What was the point of completely removing the carb from the engine block, when the solenoid could have been simply unscrewed from the carb and replaced in place? Maybe taking advantage of the need to get in there to also clean the carb?

[@mygiguser]

If you watch the video, then you'll notice that the heat shield is behind the carb. The heat shield is the fix for failing solenoids on this engine.

[@robertzeurunkl8401]

@@mygiguser I see. He's not *just* replacing the solenoid, but also fixing the problem that causes it to fail in the first place?

[@csb772]

Be careful. My throttle was stuck open on my Kohler courage and turned out the inner throttle butterfly had came loose and the the screws and butterfly went into the engine. It ate the screws but thankfully the valve stopped the butterfly. I used loctite on the screws to prevent a repeat. It runs now but its having low RPMs so I am changing the solenoid next.

[@mygiguser]

CHALK772 not sure if Loctite is going to help because of the temperature and the gasoline washing it away?!

[@csb772]

@@mygiguser any suggestions

[@shawnsmith7026]

I have a question on the throttle linkage set up I put a new carb on new solenoid on and and started it up and it acts like it wants to shut off everything is back in place idk if the throttle cable is stretched or what

[@mygiguser]

Well, when you replace the carb, you need to set the idle speed first, then adjust your throttle cable. When you pull the throttle, does the carb go full throttle?

[@shawnsmith7026]

mygiguser no I set it on choke start the lawn mower and it starts up but when I lower the throttle speed it acts like it wants to bog out I pull the hood up and there’s a cable moving by itself and when I hold that cable in place it runs just fine that’s the cable with the spring on it is the one that’s moving

[@208flatbedOO]

What was it doing to warrant the solenoid change? I have one that surges at the moment

[@mygiguser]

Jason Anderson backfiring, hard to start

[@BFTEgodswarrio5939]

Jason Anderson try run SEAFOAM thur a couple tanks my cub cadet was surging and after one tank it cleared up and has been running fine until the fuel solenoid went bad. Mine started backfiring when I cut it off sign of solenoid was going bad . Read can of SEAFOAM it will state how much to use per gallon of gas . And use only ethanol free gas regular pump gas not good for small engines.

[@rawtruth13]

ordered the kit, installed it. Engine cranks when hot, wouldnt before the kit. No backfire.

[@mygiguser]

Congrats!

[@osomax]

What is the solenoid function? I have a problem with that same motor and it is losing fuel when I stop it.

[@mygiguser]

OsomaX Photography it is supposed to stop the fuel when you turn the engine off. All that is necessary because the fuel tank is above the carburetor.

[@jwelsh1238]

Was it a bad solenoid that was causing it to backfire? What is the purpose of the solenoid? My buddy's mower does this.

[@mygiguser]

Yes, the solenoid is supposed to block the flow of gasoline in the carburetor when you turn the ignition off. Here in this video i show my broken solenoid kzbin.info/www/bejne/sIa6doFojaiIqNE

[@stoneyswolf]

If you shut the engine down at full throttle it won't backfire. The solenoid blocks the main jet. If you shut down at low speeds the solenoid doesn't block the idle passage so it can still pull fuel and backfire.

[@mirocabraja5128]

What solenoid did u use and where did you get it i have a leaking one.

[@mygiguser]

Sorry, i don't remember, i just got the kit from Ebay, and it is still working. kzbin.info/www/bejne/mYG2mGaonq6sf5Y

[@mirocabraja5128]

@@mygiguser Thank you for the link

[@23BeRAD]

I just recently installed a new carburetor on the same mower and it runs like the RPMs go up and down pulsing. Didn't do b4 and only leaked fuel from solenoid b4 too.

[@mygiguser]

you got a bad carburetor?

[@23BeRAD]

@@mygiguser it was new! What could be a possible issue with a new one?

[@bruticus0875]

@@23BeRAD Your engine manual has a "Carburetor Troubleshooting and Adjustments" section. You're supposed to have a RPM gauge on the cylinders spark plug to monitor RPM i think. But there's a low idle set screw and a fuel mixture screw on the carb itself that u can usually get to. Some also have a governor gear on them. You could check if you have one of those to adjust too. Also, they make spark detectors. An in between cord that goes from your spark plug to the plug wire. It has a clear bulb fuse type filament in it. And it shows how much charge, and at what interval the spark is being sent to plug. If it's not constant, it could indicate a coil problem. Watch Taryl.

[@ronaldwade5167]

Any know where you can get a new solenoid for the 22 hp courage mdl sv620?

[@mygiguser]

amazon or ebay?

[@ronaldwade5167]

@@mygiguser thx ordered it..ebay

[@abagail3331]

should have taken the top shroud off while your at it and lock tite the bolts to the case I've seen multiple cracked blocks from bolt coming out and hitting flywheel

[@campingftw2141]

I have a 19hp Troy Bilt bronco. Bought it in spring 2018, ran done all spring and summer. Went to start it up in April 2019 and will run for about 40 seconds to a min and cuts off. As soon as I engage the deck, it cuts off as well. A lot of back firing as well. When it’s about to die, if I close the choke and open it quickly it’ll run for a little bit longer. I’ve changed the spark plug, the oil, oil filter, brand new carb, new solenoid, new battery, I have zero idea of what it could be at this point.

[@mygiguser]

Well, google "lawn mower sheared flywheel key" and check that. Hard to say without seeing it. All wiring around the engine in good shape?

[@campingftw2141]

mygiguser everything is in good shape. I’ve literally put less than 30 hours on it.

[@campingftw2141]

Also, it ideals really rough. When it’s about to die, if I open and close the choke quickly it keeps it running.

[@stephennichols4815]

Did you replace fuel filter didn't see it listed on the parts you replaced also good idea to clean the gas tank,, and might be the seat switch bad if it shuts off when you engage the blades

[@DirtyJobsGuy1]

My only question was: what symptoms did the mower have that made you think it might be the solenoid?

[@mygiguser]

Michael Rowe backfiring, and problems starting up when hot, and gasoline in engine oil.

[@DirtyJobsGuy1]

Ok got it! Thank you for responding to my question!

[@fredorico41]

@@mygiguser I got a Kohler courage 17hp on my husky ride on, looks similar to your 20hp?

[@patrickamcguire8749]

I've never had to replace a solenoid, just clean them from the deposits that collect in the bowl. Especially the ones that have been sitting with rotting gas for a long time.

[@mygiguser]

Patrick A McGuire you got lucky. The one in the video got damaged by the heat of the exhaust.

[@RickyPisano]

I have a Koehler 19 HP and it's sputtering. Maybe this will help. THANKS!!

[@campingftw2141]

Ricky Pisano bought a Troy bilt 19hp bronco last year and I’ve already had to replace the carb. The solenoid was shot.

[@TheMonkeyboiii]

Does it matter which way you plug the wire leads into the solenoid? Or can the red wire go on either post of the solenoid plug-in slot?

[@mygiguser]

I think it matters, but i am not sure. The red wire is the power wire, and the black one is the ground wire, if there is a connection between the solenoid housing and the ground wire (i don't know, if there is one), then you will create a short, if you connect the black wire to the red one coming from the ignition switch. My recommendation: don't connect the red wire with the black wire!

[@TheMonkeyboiii]

Right, i know where to attach the wires to the mower, red to ignition and black is ground. I meant, when you plug those wires to the solenoid, the white plug of the wires can plug into the black slot on the solenoid either way. So if say, I'm looking at the solenoid in my hand with the black plug (with the two prongs) facing me, would the ground go to the left prong or right prong on solenoid? I hope I'm describing that right. Thanks for reply.

[@chrisburak]

Witch wire goes to each side on the solenoid plug in? Red on left or right of the prong plug?

[@chrisburak]

Did you find what wire goes to each side?

[@mygiguser]

The plug fits only in one direction? When you look at the connectors, the connector housing pointing towards you, then black is left and the red is right on the one i used.

[@1949carguy]

I see alot of these carb kits but none with the additional heat shield

[@barryestell6324]

That the worst engine Kohler every put on a mower ,,,1000 % nothing but junk !!

[@mygiguser]

Kohler 25-757-25-S just search for that (Ebay, Amazon, Google, ...)

[@shawnmiller9381]

In fast forward it's like watching a crackhead at work. Lol 😋 Amusingly funny and less time consuming.

[@larshghnielsen8407]

I have the same engine on my Husqarna LTH151, but i can see that there is not a vacum fuel pump on the one in the video, why is that, can it work without it? br. Lars

[@mygiguser]

Depends where your gas tank is. Mine is up there under the steering wheel, and gravity pushes the fuel down. Some tractors have the gas tank under the seat, on the same level as the carburetor, or below, there you need to pump the gas up.

[@larshghnielsen8407]

@@mygiguser Mine is at the same spot, under the steering wheel, i ask because i have a problem with trimming the caburator, so it runs smooth both in low and high rpm

[@suzieq8379]

why are you putting a new longer stud in cylinder head?? I had to order me a whole new carb apparently my motor was loose caused my solenoid wire to break, I could have just done the solenoid but decided to get the whole new think since its 11 years old actually it was really clean.. just confused about the stud, mine hasn't came in yet still waiting

[@Jp-hv9zj]

When you add the heatshield a longer stud is needed to reach all the way through the added layer

[@suzieq8379]

@@Jp-hv9zj mine is some different i didn't have to do that my heat shield was already there

[@TrailBusterBrute1]

I'm astounded by how greasy these Kohlers are on the outside. This one, other videos, and my Kohler command 15, too!

[@donaldteal8720]

Gotta wash all small engines once in a while ,called maintenance?

[@projectgallagher]

Do you know the size of the ground wire bolt?

[@mygiguser]

sorry, i made the video long time ago, i don't recall

[@erikanderson1971]

I just bought a Cud Cadet with the single cylinder Kohler 18hp Courage engine. Bout a week and a half ago it just died while mowing. When I tried to turn it on smoke was coming out of the muffler. I was able to push it to my driveway where again I tried to start it and you could see gas spitting out of the muffler. Long story short is we took somethings apart, got all the gas out and got it started again and I am thinking this is my problem. My question is will this kit work on my engine? I have a engine serial number but I have no clue on how to find the solenoid repair kit for my engine? Can you advise?

[@mygiguser]

Erik Anderson goto partstree dot com and find your mower and the part numbers. But if your mower is that new, don't you have warranty?

[@erikanderson1971]

I do have a warranty but because I was able to get the mower running again they said nothing was wrong with it. I would much rather just get this carburetor deal fixed myself and not have to worry about it again. I would gladly pay $40 to get this fixed the right way.

[@mygiguser]

One thing you should do for sure, is to measure the oil level. Every!!! time before you start it. If the gasoline leaks into the engine, the oil level is going to be higher and higher, and the engine will fail for sure!

[@mygiguser]

Btw, if it doesn't have a fuel shutoff valve, you should consider adding one. They are pretty cheap, and could save you an engine. kzbin.info/www/bejne/nZLUqpyKgc6ZnsU

[@erikanderson1971]

They said the oil level was high and they fixed it. Its not the oil that is the problem it's still the carb right?

[@frankcanales1223]

question, mine shuts off after getting hot, then starts up after cools off could this be a possibility.

[@mygiguser]

Frank Canales good question. Could also be the ignition coil. Hard to say. When it doesn’t start, do you hear the solenoid click when you turn ignition on?

[@redneckracers2360]

I Find That The Carburetor Gets Too Hot, Causing The Gas To Vaporize Before It Reaches The Cyl. Check Your Heat Shield. Also, Check All The Fuel Pump Lines, If The Pulse Line Is Cracked, Replace It, I Find That That Fixed An Issue I Had A While Ago.

[@boldeaglebic37]

Where did you get the kit?

[@mygiguser]

amzn.com/B00CSBQVL6

[@desotopete]

Would bad solenoid also cause gas to flood out carb?

[@mygiguser]

desotopete yes

[@scufxz6841]

How did you get the bowl of to clean it?

[@mygiguser]

unscrew the valve on the bottom

[@scufxz6841]

Thanks

[@THEMOWERMEDIC1]

All that work and the motor knocks like a Jehovah’s Witness I hate those bucket engines, the sump cover bolts vibrate out and hits the flywheel, and in most cases cracks the engine block.

[@mixter7x7]

really ? please - tell me about the engine knock in my kohler 27 hp v twin. sounds like a pushrod at low rpm ? i was going to do the valve adjustment but you say - ????? they all knock like this ? please explain. my briggs never made noise like this. any info is appreciated

[@ollief9375]

Thanks for vid. Please help me 🙏🏻. Got similar engine just a 15hp though. My fuel solenoid is working but the green wire you have fell off. I then took screw out of carby to replace and then lost screw and don’t know where it used to be. Do you know the purpose of the green wire? Perhaps earth as connect to frame?

[@mygiguser]

Are you talking about the green wire in my video, or the green wire on your engine?

[@mygiguser]

The green wire in my video connects the carburetor to the engine. (Ground wire, or Earth as you call it.) The new solenoid doesn't need that wire, because it has power and ground connected straight to the solenoid.

[@ollief9375]

@@mygiguser thanks!!

[@ollief9375]

@@mygiguser do you know what the replacement part would be called or where to get a ground wire. I have been looking and can’t find the part. I tried wrapping wire around screw and bolt but didn’t connect properly. I was then thinking of trying to get some of those crimp on things that go onto wires and then have a circle hole. What do you think?

[@gmlegend4885]

Is it normal for the fuel solenoid valve to be overheat after being on for 30 minutes?

[@mygiguser]

Jesus Zamarripa yes it gets very hot.

[@donaldteal8720]

No

[@hgpo27]

How do I remove the carb on mine? the solenoid hits the lawnmower frame, so it cannot be pulled off the studs!

[@mygiguser]

hgpo27 Good question. Can you share a picture of that situation?

[@hgpo27]

I just got it, but I had to unbolt a panel attached to the frame, pry it back, and pull the carb over it.

[@toxrozzx8158]

U could also just have had taken the solenoid off. I've seen a video with same problem.

[@lynnegudat7605]

@@toxrozzx8158 Same problem, that what I'm going to have to do. Looking at some videos, the carb comes off so easy. Not mine, lol

[@toxrozzx8158]

@@lynnegudat7605 What kind of mower you got? 👍