2-Stroke Carburetor - Get 'JACKED' with Knowledge that Most Don't Know! (by Craig Kirkman)

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  • Опубликовано: 31 янв 2025

Комментарии • 238

  • @TheRepairSpecialist
    @TheRepairSpecialist  Год назад +25

    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 😊👍

  • @100vg
    @100vg 2 года назад +45

    Your way of describing how these various carburetors work, made crystal clear by you diagrams and arrows to show the flow, then the animation of it all, allows anyone to understand what each part is, how it works for both understanding and troubleshooting. Thank you, Mr. Craig.

    • @TheRepairSpecialist
      @TheRepairSpecialist  2 года назад +6

      Wow. Thank you for your very kind feedback. I really appreciate it. Craig 👍

    • @incidentalauditor
      @incidentalauditor Год назад +1

      That's right he does a better job than anybody on the internet I have seen!!! I mean I've actually diagnosed and resolved chainsaw issues not even gold level stihl mechanics could figure out solely based on my new found understandings of these intricate little machines that to on other machines lol

    • @incidentalauditor
      @incidentalauditor Год назад

      ​@@TheRepairSpecialistThis is why I tell ALL my customer neighbors and ALL my mechanic friends they need to watch you! Your 2 stroke series has save me LOTS AND LOTS of headaches and frustration. There is one thing I haven't seen you show, which I'll nkt reveal just yet, but I haven't watched all of your videos. I think we all appreciate your willingness to share your knowledge all whilst basically saying "listen I night be wrong make your own choices". Great work!!!

  • @adnacraigo6590
    @adnacraigo6590 2 года назад +14

    I had an understanding of how it works but never saw it in such detail. Thanks.

  • @eananstrain6817
    @eananstrain6817 2 года назад +18

    Stumbled upon this video by accident at lunchtime one day, not expecting anything particular. Holy crap this was fantastic! Really great video. You went to a lot of trouble creating the images in this video to explain how these work, its much appreciated. Fantastic video, thanks!

    • @TheRepairSpecialist
      @TheRepairSpecialist  2 года назад +2

      wow. Thank you for your awesome feedback. I really do appreciate it. Craig 👍👍👍

  • @shajioommen7003
    @shajioommen7003 Год назад +6

    Beautiful explanation. Interested person can understand it. Worth watching twice or thrice

  • @stanblackburn700
    @stanblackburn700 10 месяцев назад +13

    I love the teaching and theory that goes on in your videos. And I have to say that the design and engineering that went into the 2-cycle carburetor is genius. Thank you.

  • @TimberTrainer
    @TimberTrainer Год назад +5

    Excellent information. I'm sure there are many of us that have installed components in the wrong order.

  • @tonyhull5539
    @tonyhull5539 Год назад +7

    Excellent. What more can I say except. THANK YOU !

  • @donmayberryjrsOPE
    @donmayberryjrsOPE 2 года назад +10

    Craig a very informative video as always! I've been rebuilding 2-cycle carbs for more than 50 years and still always learn something by watching your work. You know, we don't give enough credit to the engineers who originally developed these carburetors, whoever they were.

    • @TheRepairSpecialist
      @TheRepairSpecialist  2 года назад +2

      Thank for your kind feedback, and I totally agree about the engineers that design and produce these needing more credit. Craig 👍👍👍

    • @donmayberryjrsOPE
      @donmayberryjrsOPE 2 года назад

      @@TheRepairSpecialist Craig, any idea who they would be? Jeeez, back in the day right?

    • @madyottoyotto3055
      @madyottoyotto3055 Год назад +2

      @@TheRepairSpecialist
      I am reasonably sure you entirely missed the hi flow adjustment screw on this style of carb
      This style of carb IS NOT
      A SINGLE ADJUSTMENT SCREW
      If you look at the top of the throttle barrel that the cable attaches to in the centre of that is a large brass collar/screw you can see the rubber tube in the centre of the brass screw 19:43
      Remove the rubber tube and there is a wee little adjustment screw hiding there to adjust that main jet needle
      On most verients at least
      hope this helps

  • @TheJMan152
    @TheJMan152 Год назад +5

    Thanks! The other day I followed someone else's video series on diagnosing and repairing a two stroke engine. I followed his steps now knowing what was going on and got it working. This video helped me make sense of all those weird little pieces. :)

  • @JonathonSisson
    @JonathonSisson Год назад +3

    This is an amazing video. Thank you for taking the time to put this together.

  • @markhearn392
    @markhearn392 Год назад +5

    A fantastic video on how this type of carburetor works, will help diagnosis of fuel flow path etc: Thanx from down under NZ...

  • @apavlov58
    @apavlov58 3 месяца назад +2

    This is the best video I have found so far explaining in great details the way 2-stroke engine's carburetor works. The animation makes it much easier to see the purpose of each small component. Brilliant....

  • @MosquitoBait
    @MosquitoBait 2 года назад +4

    Thank you so much for this very educational video. I'm going to watch it several times to make sure I understand it well. Much appreciated.

  • @wesbellmore6664
    @wesbellmore6664 Год назад +2

    Brilliant instructions…will be watching everything you make!

  • @IraqiVet
    @IraqiVet 8 месяцев назад +4

    Absolutely the best teaching video I've seen in this subject. Thank you so much for your time. I could sit down with you for hours asking questions. Take care sir.

  • @madchem184
    @madchem184 9 месяцев назад +5

    I learned so much from this video, thanks for the great information! I've actually fixed a few of those without actually jndeuhow they work. I'm sure the next repair will be so much simpler thanks to your video

  • @darylkerr8058
    @darylkerr8058 2 года назад +2

    Really good the way that you explain and simplefi the part that your talking about. Im Daryl B Kerr from belfast, Northern Ireland

  • @abylara07
    @abylara07 4 месяца назад

    This is so detailed that I would like to know who woke up one day and said I want to make a small carburetor with small parts this is crazy cool awesome video

  • @choihyuntae8064
    @choihyuntae8064 Год назад +2

    excellent !!! this is absolutely best teaching about carburetor . you are really best !!! thanks a lot !!!

  • @metheewatchakittikorn4796
    @metheewatchakittikorn4796 2 года назад +4

    I always love your explanation. Thank you very much.

    • @TheRepairSpecialist
      @TheRepairSpecialist  2 года назад

      A huge Thank you to you. It really motivates me to receive comments like yours. Craig 👍👍👍

  • @RamRaidAt4am
    @RamRaidAt4am 7 месяцев назад +2

    Best explanation for how these little mysterious carbs work ever!

  • @Mehle1705
    @Mehle1705 3 месяца назад +1

    Thanks Mr. Craig for this excellent tutorial on carbs and how they function!!! I love being educated!!!

    • @TheRepairSpecialist
      @TheRepairSpecialist  3 месяца назад

      Thank you. I really appreciate your comment. Craig 👍👍👍

  • @rafaelmenendezgarcia1304
    @rafaelmenendezgarcia1304 Год назад +2

    One of the best explanations. i have seen of this carburator thanks

  • @JETTSET
    @JETTSET Год назад +1

    Excellent and thorough explanation. Your visual aids and diagrams were spot on. Well done sir.

  • @robertbaysinger1309
    @robertbaysinger1309 2 года назад +3

    Brilliant job of explaining it. I've been working on this stuff for a couple years and thought I knew it pretty well, I learned something from your video. Thanks

    • @TheRepairSpecialist
      @TheRepairSpecialist  2 года назад

      That’s awesome. Thank you for your kind feedback. Craig 👍👍

  • @courtneyroy270
    @courtneyroy270 7 месяцев назад +2

    Love your show really, it's your voice and obviously huge knowledge, best of wishes

  • @indikaprabash8084
    @indikaprabash8084 Год назад +3

    Great explanation….thank you very much…cheers from Denmark 🇩🇰

  • @uadcro
    @uadcro Год назад +1

    Absolute king explanation!! Already known a fair bit about the subject, but you explained it majestically!

    • @TheRepairSpecialist
      @TheRepairSpecialist  Год назад +1

      Thank you for your very encouraging feedback. I really appreciate it. Craig 👍👍👍

  • @kyriakosfotiadis
    @kyriakosfotiadis 2 года назад +1

    Thank you very much my friend! You create the best videos for small engines! I'm following you from Greece and I wish you well!

    • @TheRepairSpecialist
      @TheRepairSpecialist  2 года назад +1

      Thank for your kind feedback. I’m really pleased you like my vids. Your country is beautiful. Me and my wife and kids heat there every year. Craig 👍👍

  • @autobodhi
    @autobodhi Год назад +1

    This video is outstanding. You’re an absolute boss.

  • @ericfuentes7163
    @ericfuentes7163 4 месяца назад

    Incredibly great detail. Now I must go and see how these air fuel needles are adjusted. Thanks again!!!!

  • @HipaStore
    @HipaStore Год назад +2

    Awesome video introducing how the carburetor works.

  • @PaloRodriguez-mp3kk
    @PaloRodriguez-mp3kk Год назад +3

    Difinitivamente, exelente. Hablamos de carburator, como limpiarlo ext.
    SABES como functions, no, no, no. Hoy se y tengo comfianza de arreglarlo. Thank U,
    CADA vez que Tenga necesidad de saber y aprender, ya se cual video bajar. Sin Duda alguna, El mejor. Amen.

  • @bobs12andahalf2
    @bobs12andahalf2 Год назад +2

    Much appreciated! Couldn't for the life of me trace the path through the darned thing

  • @philliphall5198
    @philliphall5198 Год назад +1

    Thank You for teaching everyone how to fix there problems and correcting there mistakes 😊😊

  • @kc2972
    @kc2972 2 месяца назад

    what a great lesson on these carbs...thoroughly got educated ...keep these lessons coming...i a hooked...

  •  8 месяцев назад +3

    You are a genius explaining things like this...

    • @TheRepairSpecialist
      @TheRepairSpecialist  8 месяцев назад +1

      Thank you so much. I really appreciate it. Craig 👍👍👍

  • @KensSmallEngineRepair
    @KensSmallEngineRepair 2 года назад +3

    Another great video Craig, Knowledge is Power!!!

  • @boss-lyfe
    @boss-lyfe Год назад +3

    These videos are amazing. Keep up the good work.

  • @69harescrambler85
    @69harescrambler85 Год назад

    Over the years I've had mixed results rebuilding/tuning two stroke carbs, frequently giving up & ordering new ones, also with mixed results. 100vg's comment pretty much sums it up for me. Excellent presentation, now in my bookmarks. Thank you.

    • @TheRepairSpecialist
      @TheRepairSpecialist  Год назад

      Wow. Thank you so much for your kind feedback. I really do appreciate it. Craig

  • @porferio-wk4jl
    @porferio-wk4jl Год назад +1

    Thank you very much for the informative explanations. All of my days I threw away my carburetor whenever it got troubled. I thought that it wouldn't be repaired.

  • @macknumber9
    @macknumber9 4 месяца назад +1

    Hats off to you my friend. SUPERB information. EXCELLENTLY done video mate

    • @TheRepairSpecialist
      @TheRepairSpecialist  4 месяца назад

      Thank you so much. I really appreciate it. Craig 👍👍👍

  • @CrivRex
    @CrivRex 10 месяцев назад +1

    I love these videos. It helps me troubleshoot my carbs very well. Now I see why my edger won’t start. Fuel isn’t getting in through the metering system bc the diaphragm is bad.

    • @TheRepairSpecialist
      @TheRepairSpecialist  10 месяцев назад

      Thank you for your kind and motivating
      Comment. I really appreciate it. Craig 👍👍👍

  • @terrymcdole6906
    @terrymcdole6906 2 года назад +2

    Great explanation as always.
    Thanks

  • @courtneyroy270
    @courtneyroy270 8 месяцев назад +1

    Great show with the supply and return gold pipes is the supply one always the lower one and return one the higher, or did I get that wrong.

  • @Pavol-Pivka
    @Pavol-Pivka 4 месяца назад

    Thanks for sharing. I've learnt a lot from you last 2 years.

  • @alexabraham154
    @alexabraham154 Год назад +1

    This video was very helpful in understanding how this carb works. Thank you

  • @mehrzadrashidkhani3250
    @mehrzadrashidkhani3250 8 месяцев назад +1

    Excellent explanation in technical details fully
    👍👍👍

  • @eamonnbrown7536
    @eamonnbrown7536 8 месяцев назад +1

    Your videos & explanations are absolutely brilliant..

    • @TheRepairSpecialist
      @TheRepairSpecialist  8 месяцев назад

      Thank you so much. I really appreciate you kind feedback. Craig 👍👍👍

  • @lynnenux5763
    @lynnenux5763 Год назад +1

    Fantastic video, must have taken ages to make. Thanks so much!

  • @bbeauregard4181
    @bbeauregard4181 7 месяцев назад +1

    Excellent presentation! Well done.

  • @scottstape-lt9fg
    @scottstape-lt9fg 10 месяцев назад +1

    Excellent explanation of how these carburetor s. Work

  • @ronaldreagan9018
    @ronaldreagan9018 Год назад +2

    Great video very clear and informative keep it up you are amazing I definitely learned something.

  • @jicabe577
    @jicabe577 10 месяцев назад

    Amazing, very detailed description. Congratulations, sir! Thank you very much.

  • @splagyetsi3287
    @splagyetsi3287 6 месяцев назад +1

    Having trouble fixing my friends brush cutter. This help quite a bit.

  • @dzsemadhs1816
    @dzsemadhs1816 Год назад +2

    Thank you for this video from now i understand more how this work and i will try to fix my treamer

  • @1cleandude
    @1cleandude 4 месяца назад +1

    Just subscribed because all of your videos are awesome!🙏🙏🙏

    • @TheRepairSpecialist
      @TheRepairSpecialist  4 месяца назад

      Thank you so much. I really appreciate it. Craig 👍👍👍

  • @nikitasstratakos3361
    @nikitasstratakos3361 10 месяцев назад

    Very good job Craig. Congratulations!

  • @BECHA1977
    @BECHA1977 2 года назад +2

    Very detailed and helpful videos! Thanks a lot!

  • @tommont1824
    @tommont1824 6 месяцев назад +1

    Wow! The best I’ve seen yet

  • @rimasbalciunas
    @rimasbalciunas Год назад +1

    Thank you very much for such informative video.

  • @highgatehandyman6479
    @highgatehandyman6479 10 месяцев назад +1

    Great content. Ive got a 2 stroke Waxker Neuson BH55 Breaker and its smokey. Also sounds a bit gaspy when throttle is applied but does seem to run

    • @TheRepairSpecialist
      @TheRepairSpecialist  10 месяцев назад

      Your Waxker Neuson BH55 Breaker may be experiencing problems with the fuel-air mixture, based on the symptoms you have mentioned. What you can do is as follows:
      Examine the air filter: A filthy or clogged filter can impede airflow to the engine, which can result in more smoke and a rich fuel-air mixture. Take off the air filter and look for any damage, dirt, or debris. If required, clean or replace the air filter.
      Examine the Fuel System: Look for any indications of contamination, leaks, or obstructions in the fuel tank, fuel filter, and fuel lines. Verify that there are no problems with fuel supply to the engine and that the fuel pump diaphragm is operating as intended.
      A problem with the carburetor adjustment may be indicated if the engine makes a "gaspy" noise when the throttle is applied. To guarantee the proper fuel-air mixture at all throttle positions, adjust the carburetor in accordance with the manufacturer's instructions.
      Spark Plug Inspection: Increased smoke and poor engine performance can also be caused by a fouled or damaged spark plug. Take off the spark plug and check it for wear, damage or fouling. If required, clean or replace the spark plug.
      Compression Test: To assess the engine's general condition, conduct a compression test. Low compression may be a sign of damaged or worn-out cylinders, which may be the cause of smoking and subpar performance.
      Professional Inspection: It's recommended to speak with a qualified mechanic or technician that specialises in small engines if you're not sure how to diagnose or resolve the problem on your own. They are able to perform a comprehensive examination and diagnosis in order to find and fix any underlying problems with your Waxker Neuson BH55 Breaker.
      I hope this helps a little
      Craig

    • @highgatehandyman6479
      @highgatehandyman6479 10 месяцев назад

      Nice one mate. I'm gonna look into it. I'll work on the carb and possibly the rings in due course. Thank you

  • @srdporter
    @srdporter Год назад +2

    Absolutely brilliant! Question if you don't mind. My carburetor is very similar but has the adjustment screw down the middle of the throttle barrel? I assume turning this will alter how much the needle will engage into the jet? Very fiddly trying to adjust (if that is indeed how I adjust the fuel delivery on this setup!). Have you any experience of this type? Thanks. Andy

    • @madyottoyotto3055
      @madyottoyotto3055 Год назад +1

      Yes you are correct see at 19:43 that his has a rubber tube blocking it
      This is the hi flow needle
      The low flow he shows in the video but calls it the fuel to air mixture
      The animation showed it had no way of limiting or adjusting the air flow
      So I would say it has to be the lo mixture screw and air is regulated by the idle limit screw he also explained
      So yes you are correct they do have a third mixture screw and it's the hi flow mixture screw they tried to hide a little too successfully for my liking
      Hope this helps

  • @garycook5125
    @garycook5125 Год назад +1

    Another information-filled video.

  • @mikespain8655
    @mikespain8655 2 года назад +1

    Is mechanic spelled differently in Great Britain? Looks like a Walbro carburetor. They are usually Zama and sometimes Walbro. Sometimes the check valves on primer block go bad. I really appreciate your thorough explanation.

    • @TheRepairSpecialist
      @TheRepairSpecialist  2 года назад +1

      Thanks for letting me know about the typo in the thumbnail. I will correct that ASAP. Craig 👍

    • @philliphall5198
      @philliphall5198 Год назад

      Lots of check valve are damaged by air pressure and objects being pushed into them
      I see it alot in spring time

  • @tharindutennakoon5816
    @tharindutennakoon5816 Год назад +1

    Wow excellent introduction ❤

  • @JoeStehly
    @JoeStehly 2 года назад +1

    Very, very well done!!!

  • @achihifi
    @achihifi 2 года назад

    I have tune several of those and have discover an other screw below a rubber cover inside the bronce part in the top of the barrel, what do you think that screw is for? I've been using it to calibrate low rpm range, like an L type screw and then the in maximum rpm calibrate with the crew you explain in the video. Thanks for the video is very clear all the explain and diagrams you use.

  • @1gurugraphics
    @1gurugraphics 9 месяцев назад

    Wow it is really good explained video. It help me lot.Thanks 😊

  • @JohnR9965
    @JohnR9965 2 года назад +1

    Another awesome explanation….👍

  • @nathanmccullough9312
    @nathanmccullough9312 Год назад +1

    Amazing video, thanks.

  • @TheKubelman
    @TheKubelman 6 месяцев назад +1

    excellent tutorial many thanks

  • @noorjahansaidalavi343
    @noorjahansaidalavi343 5 месяцев назад

    Veri good class, ok what is the different between 2 stroke, and four stroke

  • @MrHadrian71
    @MrHadrian71 Год назад +1

    Fantastic explanation! Can't thank you enough! Subscribed!

  • @gorgon9786
    @gorgon9786 Год назад +1

    Great video, sir! Still wondering how you've pulled of such thoroughly animations!. Stunning!..
    I've seen some exactly same equipment failing the last month's!. Carbs so hard to start of a sudden.. Could it bee the E10 fuel?.. Do you have ideas on why this coming now?.. Machines will change some of the known physics-based guideline on working with E10.. Hard starters/will not start at all!.. Hope you could say something about self experience on this matter,.. And how to fix..?..

  • @ProSaw70
    @ProSaw70 2 года назад +1

    Brilliant video. Thank you.

    • @TheRepairSpecialist
      @TheRepairSpecialist  2 года назад

      Thank you. I really appreciate your feedback. Craig 👍👍

  • @Mufakkir786
    @Mufakkir786 10 месяцев назад +1

    Everything explained in a very scientific and academic way.

  • @chucksmoko5348
    @chucksmoko5348 2 года назад +1

    Great video. Thanks.

  • @eeo.e
    @eeo.e Год назад +2

    This video makes it clear.

  • @josephphiri4956
    @josephphiri4956 10 месяцев назад +1

    This was worth watching ❤

  • @JanDavids1955
    @JanDavids1955 8 месяцев назад +2

    Really really excellent!!

  • @frostfox1208
    @frostfox1208 7 месяцев назад +1

    I found a tiny tear in the primer bulb. Engine won’t start. I ordered a new bulb and will see if a tear is the problem.
    Thanks for the video

  • @everything4156
    @everything4156 Год назад

    Thank you from sri lanka 🇱🇰🇱🇰🇱🇰

  • @lukesakail9101
    @lukesakail9101 4 месяца назад

    Love it..clearly delivered

  • @EddyManfred
    @EddyManfred Год назад +1

    Thank you 👌🏼 that was brilliant 👏🏻

  • @Abc-kn5wj
    @Abc-kn5wj 10 месяцев назад

    Quick question on that carburetor you have a brass can you have a brass tube that is bent you have two fuel lines that go into the tank which of those brass tubes the straight of the bent gets the fuel filter attached into the tank

  • @dimitristobz1234
    @dimitristobz1234 6 месяцев назад +1

    Very WELL DONE !!!

    • @TheRepairSpecialist
      @TheRepairSpecialist  6 месяцев назад

      Thank you so much. I really appreciate it. Craig 👍👍👍👍

  • @pete194
    @pete194 5 месяцев назад +1

    Thank you so much for your efforts!

  • @simonbehnke4756
    @simonbehnke4756 Год назад

    Do you have any basic settings for both the main adjustment screw and the tiny screw that is down the centre of the rotary valve? Im doing a favour for a local motoX group and their strimmer wont run. Put a new coil on as no spark but I think both screws out of adjustment and its constantly flooding. Thanks. Great videos too! 👍👍👍

    • @TheRepairSpecialist
      @TheRepairSpecialist  Год назад

      Well, this vid of mine might help you here. It shows how i adjust these types of Carbs. Take a look and see if it helps: ruclips.net/video/pk6Bcv8LQOk/видео.html
      Go from here and then we can look into it further if this doesn't help you with your machine.
      Thanks
      Craig

  • @justharryjohnson7250
    @justharryjohnson7250 2 года назад +1

    Another idea for a video. I own a paramotor (a basic 2 stroke engine with a walbro wb37 carb) I rebuilt the carb but overlooked the fact that I put the carb back on without the inlet spacer. (This goes between the engine and the carb) I tuned the engine and all was fine. Until someone told me. So I replaced it but in order to get the engine running right again I had to make it rich by around 3/4 turn. (Quite a lot for just a spacer) I know it will change the atmospheration but I didn't think it would be that much different) would you be able to go into more detail on this and 2nd question is if it runs with less fuel without the spacer would I not be better off removing it and tuning it to use less fuel ?

    • @madyottoyotto3055
      @madyottoyotto3055 Год назад +1

      I am fairly sure it's a safety thing mate
      Heat barrier to stop fuel warming
      Another hint too this is the fact they tend to use plastics
      Also having it setup to use a little more fuel is tactical because it reduces engine wear and heat
      How do you go about setting the carbs to perform at it's best when the oxygen is reduced from the altitude
      May sound daft but do you set them up half way up a really good mountain or something I always wondered

  • @woodhonky3890
    @woodhonky3890 5 месяцев назад +1

    Well done!

  • @georgeiceman867
    @georgeiceman867 Год назад

    Hi. Can you tell me why the purge bulb is not filling with gas all the way up ?
    Is filling only half with gas no matter how many times I press it. Is the culprit that red check valve that's underneath the purge bulb or is the other check valve that's bad ?
    I would much appreciate if you could give me an answer.
    Tank you sir.

  • @beardedscrapper538
    @beardedscrapper538 6 месяцев назад +1

    Awesome video.

  • @GuysPlayingWithTools
    @GuysPlayingWithTools 2 года назад +1

    Great video.

  • @james12372
    @james12372 3 месяца назад

    Sir what's the reason behind over flooding of fuel in the block and silencer

  • @stevenchandler4218
    @stevenchandler4218 2 года назад +1

    Thanks Craig...

  • @otsnew4823
    @otsnew4823 Год назад

    If the mushroom head is broken off the one way valve can that cause you to leak gas out the carburetor?

  • @davewright522
    @davewright522 Год назад +1

    Excellent vid thanks

  • @olinqua1
    @olinqua1 Год назад +1

    Really good video