How CHAINSAW CARBURETOR Works - Chainsaw Carburetor Explained!
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- Опубликовано: 2 окт 2024
- The Chainsaw Carburetor How it Works
This Fascinating Video Effortlessly Explains the Inside Workings of the Two-Stroke Carburetor for a GREAT UNDERSTANDING.
- So let's begin: The two-stroke carburetor is a little but complicated mechanical marvel that powers the chainsaw, an iconic equipment in the worlds of forestry, landscaping, and outdoor upkeep. This part, which serves as the engine's core, is in charge of supplying the ideal air-fuel ratio required to operate the chainsaw's two-stroke engine at high revs. In this investigation, we'll take a deep dive inside the two-stroke chainsaw carburetor's inner workings to discover how it actually functions.
1. Air Intake and Filter: The chainsaw's air intake system is where it all begins. An air filter is used to draw air in, keeping dust and other material out of the carburetor. For an engine to run properly, the air filter must be clear and clean.
2. Venturi Effect: The air flows through a vital part known as the venturi as it enters the carburetor. The airflow is accelerated by this narrowed area of the carburetor throat, which results in a low-pressure area. The fuel must be drawn into the airstream using this Venturi effect.
3. Fuel Reservoir: A fuel reservoir or float chamber inside the carburetor houses a supply of liquid fuel, often petrol. A system of needle and float valves controls the fuel level. The float valve opens when fuel is used up, letting in more fuel to keep the level balanced.
4. Fuel Atomization: A calibrated jet draws fuel from the reservoir through the low pressure produced by the Venturi effect. In order to ensure full mixing with the fast-moving air, this jet atomizes the fuel into small droplets. A homogeneous and flammable air-fuel mixture is the end result.
5. Adjustment Screws: The majority of carburetors have adjustment screws that can be used to fine-tune the air-fuel ratio. While the low-speed screw regulates the idle mixture, the high-speed screw modifies the mixture for full throttle operation. The performance of the engine must be optimised by these changes.
6. Reed Valve: A reed valve is positioned between the carburetor and the engine's crankcase in some chainsaw carburetors. The reed valve controls the flow of the air-fuel combination, ensuring that none of it runs back into the carburetor.
The well-mixed air-fuel combination is brought into the combustion chamber for combustion and ignition. Here, the spark plug ignites it, causing a strong explosion that powers the chainsaw's piston. The chainsaw's cutting chain is propelled by this mechanical process, which converts chemical energy into mechanical labour.
8. Exhaust System: The engine's exhaust gases leave the engine through an exhaust port after combustion, restarting the cycle as the piston completes its strokes.
An essential part of a two-stroke chainsaw that ensures the engine obtains the proper ratio of air and fuel for dependable and efficient performance is the carburetor. To obtain peak performance and avoid problems like fouled spark plugs, overheating, or excessive fuel consumption, the carburetor must be calibrated to produce the ideal mixture.
The two-stroke chainsaw carburetor is proof of the meticulous engineering needed to power these amazing equipment, to sum up. It is evidence of the fine coordination of airflow, fuel supply, and combustion that allows chainsaws to flourish in the hands of both professionals and homeowners. Understanding how a chainsaw functions can help you to better understand the magic that makes it so useful for a variety of outdoor jobs.
This principle works for most types of Chainsaw saws, and the following also helps with Chainsaw maintenance. So, whether you are using a Stihl Chainsaw, Husquvarna Chainsaw, basically, all types of Petrol Chainsaw are valid for this principle, as well as many types of or a 2 Stroke Engine. The Electric Chainsaw, of course, escapes this whole principle!
Craig Kirkman (Owner and creator of The Repair Specialist Channel and its Copywrited content) #lawnmower #gardening #repairing #savingmoney #chainsaw #Chainsawrepair #oil #smallenginemachines #DIY #howthingswork Please check out my amazon shop. I have recommended some useful items from Amazon below. I guarantee you that these items are the sorts of things I use on a daily basis so I know they are good. I have to be careful in recommending products because I have my name and credibility at stake. So I will only recommend good products. www.amazon.co....
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The information in this description was created with the help of ChatGPT
Hi guys I just wanted to Introduce to you my other Channel "Kirkman's Academy" - which i'm just getting started. It's a go-to channel for simple explanations for hard to grasp subjects such as physics, maths and chemistry etc. Here is the link: www.youtube.com/@kirkmansacademy/videos . Thank you so much for looking, and if these topics interest you then I hope to see you the there. Many thanks indeed. Craig 😊👍
Probably the best instructional video I've ever seen. Excellent, superb, magnificent job mate !
+Steve Wayne Totally agree!
Steve Wayne Ditto. Was gonna say the exact same thing. 👍👍
I guess he's a teacher or lecturer - it was easy to understand good pace and tone, nice one!
Yes sir I do agree
Real Thing 👌💯 Best explanation ever 💪
This is THE benchmark video for anyone who wants to explain how something works on RUclips. Really best ever, superb! Congratulations!
I have been looking so hard for someone to explain this is detail. I'm so glad I found this video.
Congratulations, perhaps the best video that explains the carburetor function in a very simple way
Thank you for taking the time and effort to produce this video. I recently ordered a service kit for my old Stihl chainsaw,and rather than being a little apprehensive towards stripping down the carburetor, instead I was fascinated and confident, it all makes sense now. What a clever design. Thanks again and all the best. Tony
Fantastic instructional video. I could have used you 45 years ago, all these years struggling with chainsaws, lawnmowers and generators.
Wow! What a great video, camera in focus, actually looking at the object of interest and explained by someone who actually understands how something works! What a difference from the usual half-arsed RUclips drivel! Cheers, mate!
So nice to understand instead of everyone tell u basically clean and replace.A lot utubers don’t even tell you fuel in or out just confusing.
Absolutely top notch - very much appreciate the level of detail, drawings, close camera work, even audio overdubbing. Agree with another poster - perhaps the best instructional video I've seen!
This dude has the best voice and always does a wonderful job explaining all things small engine. Love it
Wow, thanks!
@@TheRepairSpecialist your defitenly the best small engine explanation channel by far. Your diagrams and the way you speak is so easy to listen to. Kudos bro if I could subscribe twice I would
Amazing knowledge share. So easy to understand when someone explains it clearly like the author does. Awesome job.
Just bought 2 stroke Hedge trimmer. Your tutorial is the best I've seen and will be helpful in days to come.
Thank you so much 👍👍👍
Well Done . I was an Aircraft Technician Back in the 60s/70s/80s andwas well trained at Halton the best training a guy could get . You reminded me of the great instructors we had . An accurate and well presented explanation ..... Well Done !!!!!
This is ABSOLUTELY.... POSITIVELY.... THE BEST Video I have ever watched. Thank you for posting this! I've been cleaning these little carbs for awhile, but I've always wanted a clear explanation for how they operate in detail.
extremely well explained, I appreciate you doing this video!
The explanation on the fuel pump side of the carburator, with the diaphragm, has helped me understand which is the correct way to attach the fuel lines on my chainsaw (the fuel filter hose and return hose).
Thank you.
Great Video! My saw would only run with the choke on, I took it apart and cleaned all of the orffices with carb cleaner,and air now it runs like new! Thank you very much!
WOW! What a great video! You deserve a trophy for this! Something they touch on in the ZAMA videos on rebuilding carbs is the importance of not sticking wire, pins etc into the little round brass plugs with a hole in the center. They explain that these are check valves, and probing them or blowing compressed air or carb spray into them will destroy them! That renders the carb scrap, because they are not a repairable item! Again, excellent video!
Greetings from 🇨🇦. Thank you for this very informative video. These little 2-stroke carbs are no longer a mystery to me. I hate throwing away anything that can be repaired with a little understanding & effort.
Thank you. I really appreciate your feedback. Craig
The best and most thorough explanation I've seen on you tube . Very well done sir, you have made this very clear and easy to understand. Hats off to you!
I just want to thank you for your content, you have explained clearly to me how to understand how my small engines work, you are brilliant
fucking hell, why don't you have a squillion zillion subscribers......that was intense and bloody brilliant.
I really appreciate your expertise on the 2 stroke carb, gives me Good understanding of the principal and functions, I thank you!!!
Brilliant, absolutely brilliant. Having been left a Sthil brushcutter, and no knowledge of how the engine works, this was great. Fuel had been left in the tank unused fit 3 years!
I now have the knowledge and understanding, on how and why to clean it!
Thank you!!!
By far the very best video about the topic ! Extra bonus for the clear drawings. These are no more magic to me. Thank you sir.
Terrific explanation! Wish I had you for a teacher when I was younger! You have a voice that is calming and clearly understandable.
One of the best videos I’ve seen explaining the workings of a carburettor ! Or anything for that matter ! Spot on !!!
This came up as a recommend video so I click on it not expecting to watch it through. But I have to compliment you on a job very well done. The video is very informative & the explanation using the diagrams made an excellent presentation.
JOE Z no
I have this carb on my blower. The fuel pump diaphragm is split. I’m waiting for the rebuild kit to be delivered. It all makes sense now after watching your video. Thanks very much 👍
Thank you for your comment. I appreciate it. 👍
sorry, but maybe you know, how exactly works the Zama C1Q carburettor (e.g. from Stihl FS 310) with an inner pump piston/plunger, which is pushed with a throttle valve's shaft?.. or namely why it doesn't work on high rpm? how to remove a "leakage" through this piston?
thanks!
Excellent tutorial on fuel passage through a carburetor. The diagrams are excellent.
You sir, have made something I never dreamed I would understand, understandable. You are a gifted teacher.
Rick Franklin, than you so much for your positive feedback. I really appreciate it
Just enough information to satisfy the average absorption rate of the average mind! Very well done!
I have worked on 2 cycles carbs for years ( self taught ) and I have read and heard many things on 2 cycle carbs. I do understand the flow of gas through two cycle carbs. I must say I've read some good ones, but as far as video this is clearly the absolute best I've heard and that's coming from someone who will know if what you're saying is incorrect. Very good job!
That was absolutely brilliant. I've learnt more about how carburettors work in the last 15 minutes than I have in my previous 65 years! You sir, are exceptional at explaining a mystical subject in a very easy to understand manner. Thank you so much for your efforts. Well done.
that's funny. I said almost the exact same thing. But I've only been around 68 yrs 😉
So very good and CLEAR. You Sir, are a GREAT TEACHER.
Wow, that was the best explanation I have ever heard!
Thank you!
Your videos are very, very informative, practical and understandable! Great job! Thank you from Nebraska, USA.
After taking my saw carbs apart several hundred times over the course of 20 years use, I never actually new how they worked ......... Until now.
Thanks.
..
+RoryTrackrod
Brilliant, I'm just pleased you liked the vid, and thanks for the feedback.
Craig
I wish I could buy you a beer! I've said it before, No one explains carbs better than you do. Hands down the best on the internet. Thanks and Cheers!
Finally a video where it shows how these carburetor works. I've been waiting for this one. You sir earned a subscriber, thank you for your knowledge.
Great video and explanation of rout eof fuel in a 2-stroke carburetor. Helped me solve my carburetor on a McCulloch Mac 3200 problems
EXCELLENT , what a perfect video. Five stars for the professional creation. I'm now a subscriber.
Couldn't find any useful info on these carbs till I found this, this covers exactly what I needed to know, thanks, and nicely done.
That's an absolutely exceptional video! I've been trying to learn about small engines and watching lots of videos of stripping, cleaning and tweaking carburetors, but watching this has just been a total lightbulb moment! Now that I understand the fuel flows and how it works, suddenly all the other videos and processes make sense and I can see how it all comes together! Thanks so much for sharing!
Just found this page.. Thank You!!! Best Tutorial Ever!!!
Thank you so much for your nice feedback. It's comments like yours that motivate me to continue making these videos. Craig 😀👍
Sir, I can't thank you enough for producing a great video. So clear and informative. I've fooled with these Stihl carbs for years and really had no idea how they worked. Always hoping that after cleaning and reassembly the problem would just go away. Usually just wishful thinking. My confidence level is much greater now. Thank you again and keep up the great work!
Wow, I'll be watching this video again. Very on point. Different viewing angles. Just a great video. Thank you so much.
Thank you so much for your nice feedback. It's comments like yours that motivate me to continue making these videos. Craig 😀👍
If I had teachers like you I probably would have gone to collage ! Great job !
college.
@@David-lb4te It complements his sentiment
.....indeed, he is quite didactically endowed .
Outstanding tutorial, extremely enlightening, I only wish my teacher's at school had been as interesting to listen to and learn from. Thank you very much for taking the time to post all your great videos. Atvb... Billy.
Having rebuilt and cleaned many carburetors, including the very Zuma you used to demonstrate, I have loosely known these principles. This video has taken my understanding to a whole new level. Such a well done piece! Thank you so much for taking the time to make this video and for the outstanding teaching technique you used to explain things. Bravo!
Thank you so much for the motivating comment. It's comments like yours that keeps me making these videos. Thanks again. Craig.
Absolutely brilliant video. This should be required material in every high school on Earth.
excellent informative video thank you, also worth having a look at the technical pages on the Zama website explaining how these carburettors work . Which are easier to understand after watching this video. The super imposed diagrams really help to explain it . There are now more four stroke chainsaws and strimmers getting about any chance of another video to explain how they work ?
Very comprehensive and valuable information that!!You r a real asset to RUclips.Very well done!!
Excellent - very well done!
Thank you for your kind words.
I really needed to see this as I have a Stihl trimmer with the same carb that needs cleaning. This was a great help to me. Very easy to follow and understand. Well done!
Thank you so much for your really nice feedback. Its comments like yours that really motivate me to continue making videos like this. Thanks again, Craig
This the best and most sensibly explanation of how a two stroke carburetor fuel flows .Every explanation to the point...not boring or confusing .Thank you so much and Jehovah's blessing
He said "Jehovah"!
I have agree with Steven Wayne that is very thorough and is to understand I have to watch it a few times to remember it though
Brilliant video! I'll be sending this around to everyone who has every opened a two stroke!
Amazing explanation! Thank you so much for this, now I can say for sure that I know how a carburetor works, that was a question without a clear answer! Thank you very much! All the best, Marcos from Brazil!
Well done! I would appreciate a follow up video explaining problems that arise with these carburetors and how what you have describes here is impacted by these problems. Symptom and cause type of thing.
Thanks!
Very nicely done. I've watched several of your videos. I'm enjoying your pace and ability to communicate an idea. Please keep them coming.
Superbly useful explanation, thank you! I had to recently strip and clean the carb on my STIHL strimmer. Your video was a big help.
This video should be placed in the British National Archives
This is perhaps the single best educational video on RUclips. Told with skill, terrific videography, and good sense, I would rate this as one of the all time best.
EXCELLENT detailed explanation ! I had a pretty good idea what was going on with fuel flow, but now I feel like and EXPERT !!
You earned my subscription. Great job describing all the process on how it works. Keep up with this type of videos
Great video…….you really are a specialist when it comes to these little carbs!! Love the explanation drawings. Keep up the amazing work!
Thank you! Will do! 👍👍👍
A pleasure to watch, Thank-You for doing this GREAT video
Thank you Mr. Repair Man, Awesome video.... perfect explanation of how the carb works. Many thanks, keep up the good videos ....
RUclipsd "how does a diaphragm carburetor work"
Was not disappointed.
This was an amazing education for me! I'm so grateful. My situation before this was that I've bought service kits including new Chinese carburettor copies' for the various Stihl strimmers/blowers that my workplace had, but I never understood the internals of carburettors, just replaced them as 'unknowable black boxes'. You have a natural teaching style, relaxed and knowledgeable. Subscribed and looking forward to seeing what other videos you have :-)
You’re grasp of this material is as impressive as your presentation. I am sure you have probably heard it before but if you haven’t, you might consider a quick caveat indicating that the tick-over condition as it relates to a carburetor is understood in other parts of the globe to mean the “idle condition”. Your videos have helped me immeasurably troubleshoot and repair numerous small engines. Please continue to post these as you find new material.
Thank you so much for your nice feedback. It's comments like yours that motivate me to continue making these videos. Craig 😀👍
You have to listen and watch this guys other vids he is Brilliant.Don`t skip any parts of his vids all else you would loose important in fo,Keep up the good work sir.
Wonderful! Most instructive and professional video I've ever found on youtube! Excellent camera work, graphics, and narration. I will be looking for more from this gentleman, even on topics I don't need help on!
Wow, thank you! Craig
Thank you, I was very well informed by your podcast, Excellence in your presentation.
Thank you so much. I really appreciate it. Craig 👍👍👍
Fantastic explanation, clear and precise. This helps me greatly in my first ever service and repair of my equipment. Thanks for producing this video.
+Richard Redcastle
Brilliant, Thank you for letting me know
@@TheRepairSpecialist Hi make a video on how many you turn all 3 runs in L H and T
A really good job of explaining the witchcraft that is the diaphragm carb. Excellent video. Enjoyed it, well done. :)
Spectacular. Thank you for this.
Great teacher! Excellent work! So clear ! It's really help me, Thank you so much!
Very helpful video, clear and precise. Thanks
Thank you, I appreciate your kind comment.
Brilliant explanation of the principles of operation of two stroke engine caburator.
Thank you so much for your nice feedback. It's comments like yours that motivate me to continue making these videos. Craig 😀👍
one of the most informative 14minutes and 42 seconds of my life. Just trying to work out now why I seem to get fuel into strimmer engine but not starting despite a spark. Plug coming out quite wet. Have another strimmer which starts and seems to throw out a mist through plug hole. This one doesn't so I assume I may be getting too much fuel in for the spark to cope with. off to watch lean and rich mix vid now. Thank you for your expertise and posting vid
gas
grainger5133 check the spark arrester. If you have a stihl, its very easy to remove,clean, and replace.
you would make a great teacher. explain stuff very well
Great. Simply great. :)
the id
This is exactly what l needed.Great explanation on how it works.
Thank you
Excellent explanation. Very professional. Thanks.
Can only just echo previous comments and say thanks. Brilliant video.
What a great video. Consice and informative, with no frills.
I hardly EVER comment, This is awesome. Very well done!!!
I'm just shaking my head at the ingenuity of all this. Lord have mercy on me.
By far the best video i have ever seen at you tube,i am having problems with my FS85 because i live in Brasil and gasoline here have about 23% alcohol and reacts with the oil causing problems,but keep up with your great vds,salutations profi.
I watch this over and over.
I have done a lot of work on small motors and carbs but never really understand how it works in detail. As my daughters in Liverpool would say bloody smashing video.
Roy E. thank you for your positive feedback. I really do appreciate it
Oh wow! You're awesome. Very very illustrative video. The best. Thanks for your time!!! Thanks for share it!!!
Thanks, Well explained. I've gained some understanding of carburetor parts and functions.
Absolutely great instructive video. I can now see why my strimmer wont work. Thanks Colin H
Great video a valuable tutorial aid. Very well done great presentation.
Your instructional video is absolutely amazing! Thanks so much!!
best instructional video I've ever seen,,,, Thanks a lot