Too Much Choke does this to an Engine | How it effects Engines
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- Опубликовано: 8 сен 2024
- * VISUALLY EXPLAINED
In this video I explain the basics of what happens inside your engine when the Choke is applied for too long. Too much Choke basically.
If the engine is given too much choke, it can result in several issues:
Rich Mixture: Choke restricts the airflow into the carburetor, increasing the fuel-to-air ratio. Too much choke makes the mixture excessively rich, meaning there is an excessive amount of fuel compared to air. This rich mixture can flood the engine with fuel, making it difficult to start.
Hard Starting: Excessive choke can cause hard starting. The engine might not start at all, or if it does, it could stall shortly after starting.
Black Smoke: When the mixture is too rich, incomplete combustion can occur, leading to the production of black smoke from the exhaust. This is a sign of wasted fuel and decreased engine efficiency.
Fouled Spark Plug: The rich mixture can lead to the fouling of the spark plug, which can further hinder the engine's ability to start and run properly.
Poor Performance: Once the engine is running, too much choke will cause it to run poorly, with reduced power, increased fuel consumption, and potential engine damage due to the excessive richness of the mixture.
To avoid these issues, it's essential to use the choke sparingly and only for cold starts when the engine needs a richer mixture. Gradually reduce the choke as the engine warms up to achieve the right air-fuel mixture for optimal performance.
In explaining this effectively I have had to go back and explain how the choke system works and include how the carburetor, engine and choke work work together.
I hope you benefit from this video.
Many thanks indeed
Craig Kirkman (Owner and creator of The Repair Specialist Channel and it's Copyrighted content)
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having just bought an old motorcycle with carbs, this explains a lot
Finally someone who has it all laid out.
So, for some reason, choke systems was one of those things... no matter how many times it was explained or ive used, i just never could understand it... and i think all the diagrams and explanation of how it works step by step is gonna help me remember for sure and be more confident about using them
That was the easiest video on choke I have seeing, thanks alot.
That is why manufacturers put a hole in the flap on the choke panel, because people overchoke the engine. It only takes a few seconds after the engine starts to take the engine off choke. The person that leaves the choke on too long is risking fouling up the spark plug and excessive carbon build up on the inside of the head. Eventually, it raises the head pressure and blows the head gasket. I see this more on snowblowers because snowblowers naturally are set to run rich due to winter conditions require more fuel to run an engine. Especially on colder temps. Great explination. Its too bad many people cannot understand that running the choke on really shorteneds the life of their engine. I can always tell when an engine has been run like this as soon as I pull the plug. I give them a lesson on proper start up procedure when they come pick up their unit.
RC Hobbyist Extreme smart proud of u to do so.....I have no clue a out them so I choke them a lot think that will make it start up faster not knowing it's the worse think to do, tomorrow I will operate my weed eater the right way, and I will see how it's runs..
501thunderbolt On a weed eater, choke it and pull the cord. if it fires but dies, take the choke off on the next pull. It reduces the chance of flooding the engine. I found this works 99% of the time. You may have to leave it half choked, but trust me, if you leave it full choke on that second pull, its probably going to flood. The green weed eater brand weed wackers are prone for flooding. I found that using my method of starting it seems to work better. Especially on those ones. I have been repairing weed eaters and chainsaws for 25 years. I found the internal scrrens they use are too small and easily plug. You can shop on line and find screens with larger holes that generally eliminate most issues with the bogging problem associated with newer two stroke weed wackers. The guy whom tought me how to fix them showed me that trick. I ordered a bag full of them.
RC Hobbyist Extreme you just open my mind about weedeater, after the teacher come a pro sometimes, I appreciate your info, I just learn how to start it, but like to shut down after my second round of cutting the yard...was thinking of tune it up which I know how to do too but for now I will check if the little hole is clog..or dirt in the carburettor.....I notice they 🔥 up quicker with a wider gap on the plug once it been flood... But I dont know if that can cause a misfire...will tighten my gap. And see how it run on a second round of cutting lawn...still trying to figure out things so I have to try different method until I master the little machine.. lawnmower is more easy to fix I tear them down change piston and so.... Just the weedeater is a hot head lol
501thunderbolt I worked in a small engine repair shop in exchange for merchandise for a few years before opening my own shop until Cancer put a stop to that, well, most of it. What I learned was worth more than the money they would have paid me. As it was, I was selling and buying snowmobiles all the time as well as getting provided all the latest after market products right off the truck, before anything even hit the market. Snowmobile suits, gloves, boots, sparkplugs, oil, you name it. I just picked whatever I wanted and worked an average 4 to 5 hours a day, then went home, slept a few hours, then went and worked my regular 8 hour job. Every year I get offers to work at all the local small engine shops to help them catch up, but I cannot. My wife would kill me, my Doctor would help, and my body would last about two days and that would be the end of that. No, I learned alot about small engines,and still am.I traded a gun for a Craftsman Riding lawn mower with 17 hp Kohler engine last fall. The guy put a Chinese after market carb on it and couldnt get it to run. Just before winter, I came close to figuring it out, then gave up. Well, come spring I was ready to give it away till I finally figured its issue out and now it runs great. The main jet and air jet had to be drilled out, stepped up one size at a time, until I finally got it running properly. Yup, now I am using it to mow a ladys lawn instead of selling it before something else goes wrong with it. The shifter is wonky, but it does work.
I can probably get $350 for it, but then again, in two months, I can make that much mowing with it.lol.
RC Hobbyist Extreme I'm just like that before I think to sell or throw the engine way I usually give it last try and I usually get to fix them....just a lil more time and thinking out of the box and a problem can be solve.... Thanks for the motivation.
Thank god I came across this video
Some one who explained it in such a simple term,
15 Years tinkering with small engines and all I've heard is don`t leave choke on to long your`l flood the engine, So you see the choke as a tap letting in more fuel, Rather than your restricting the air to fuel ratio and it is sucking up more fuel due to less air and piston doing the sucking on its downward stroke due to the vacuum effect,
This choke on butterfly closed /Choke off butterfly open that had always boggled my mind
The most imported info was the vacuum effect `now I understand how fuel could flood engine due to lack of air.
Well done mate for putting this out there,
Thank you
Brilliant video. I now have a better understanding of engines.
I watched both your vids on choke. I understand my moped carburetor much better. Thank you
Choke is difficult concept in my opinion. Such a bang up job on the descriptions here. Cheers.
Omg thank you, I've been looking for an easy to understand way of how it works as I just got a go kart with a 212cc generator engine and I got no idea about this kinda thing
Thank you very much. I appreciate your videos. It's really clear and informative.
best explanation I've seen so far.
Wow thanks for this. Amazing knowledge for free.🙏🏾🙏🏾
Knowledge should always be free. The truth is only feared by liars!
Good explanation, But sometimes I already rode my bike for like a kilometer and a half and Then it would stop suddenly , and then to restart I would choke the engine
Fantastic - Now I understand !
Thank you
You see very welcome indeed. Craig
Good explanation, thank you
Thank you so much for the nice feedback. I really appreciate it. Craig
Great explanation. Super clear! Cheers!
Thanks very much: it all makes sense now :D
Brilliant explanation. Cheers.
Would be better to incorporate the term "Flooded Engine" and what to do.... leave the choke Open AND walk away for a while until it all evaporates then try again. In worse cases you can remove the spark plug too if it is easily accessible
Very clear explanation. Loved it, cheers!
Thank you so much for the nice feedback. I really appreciate it. Craig
Wow!! Great video. So informative.
Awesome video mate.
Thanks!
No problem! Thanks. Craig
Great video. Thank you.
Why am I learning about chokes from postman pat
😂😆 You are right man! Amazing Flashback!
You sir...are a genuine CRACK of explanation!!! Thank you
Brilliant
I've been overchoking my 250rr mc22!! No wonder it starts like shit.
Does pull out mean choke open, more air? I am going to leave the choke lever out and run lean and there is less smoke- The old carb must give enough gas anyway
So if on half choke, it will draw less fuel than on full choke as the vacuum now draws more air.
Well, put simply, more air can access the induction tube of the carb on half choke than full choke, yes. Thank you for your comment. Craig
I ran my new snowblower on half choke for a few mins on its first start up. My dumb head got confused with the choke and while it was running I put it back to full choke and it will bog then I put it back to middle position where it smoothed out and ran it for 10mins. I did that about 5 times then I realized I put the choke in the wrong direction then I finally put it on open choke and ran It for 2 hrs with no issue. Did you think I caused any damage to my engine. It's a powermore engine 208cc.
Thank youu!!
Sir if I am using chock unknowningly continuesly,It will create any miss firing noise in silencer?
Why with choke offwhen I hit throttle it wants to die unless I let go of throttle so motorized bike will only carry load with choke on all of a sudden
For spirit ie 95% alcohol and 5% water and methanol choke is necessary for whole time
how long do you have to leave that choke on? in seconds or minutes, in general
Sounds legit
Soda pop lol. No one says that in England.
I accidentally runned my dirtbike on choke for 1 hour of run time because i forgot to turn it off after starting the engine, does this mean my engine is now ruined? What can i do about this?
You have not explained what effect it will do to the engine
used subtitles
It draws in EH
thumb up thumb up thumb up
i thaught he's a good guy but he - uploading the same video again and again
Thank you
Thank you so much for the nice feedback. I really appreciate it. Craig