CARBURETOR TUNING: Chainsaw Carburetor Settings - RICH & LEAN (by Craig Kirkman)

[@TheRepairSpecialist]

All Episodes -for 2-Stroke Carburetors Here. Thanks. Craig: kzbin.info/aero/PLrlXp3PlwgRI5OLvm3P91LJr1CYnO5TRD

[@Guarrdian1984]

You're genious, sir! You're so ahead of other explanatory videos on this topic. By far the best on the entire internet!! I've gotta tell you with a few of your videos you made me an expert for my lawnmower so I was able to repair it myself without actually having to send it for a service and pay money! Huge thanks to you!

[@jzr5560]

You Sir are an incredible teacher.Thank you! From a retired HD Mech.

[@davidsandrof8047]

Just stumbled across this and it's great. I've been repairing carbs for myself for a long time and this is right up my line of interest. I've always wondered about how the carb actually operates and you do an excellent job of explaining the theory. I am an engineer myself so appreciate knowing the how and why of carbs.

[@TheRepairSpecialist]

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

[@CrystalliteKK]

Always confused with the carb screws.. Today i have truly understood the working of rich and lean. Thank you so much

[@thunderbembo3406]

Your tutorial explained it much better..i got my first chainsaw flooded. So much gas flood inside the crankshaft. Now..i've the idea to adjust the H and L screw.. thanks man. You save my day..

[@RobCalhounPGH]

This makes sense and what I was thinking about intuitively. I've been watching videos about adjusting chainsaws and they seem to be using these terms and corresponding adjustments interchangeably and then contradicting in the next sentence. No amount of rewinding or searching in vain for comments pointing out the logical disconnect helped me to make sense of it all until I came here. Thanks.

[@TheRepairSpecialist]

Wow. Thank you for your very king feedback. Craig 👍

[@careylowe8849]

Sir. I always come to your channel. You are , in my view the best at thoroughly explaining subject matter problematic to me. Thank you for sharing your knowledge.

[@TheRepairSpecialist]

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

[@kowanut1]

What a wonderfully plain and simple explanation. Thanks!

[@lillkikky7334]

Thank you so much I learn best with visuals.i have 2 lawn mowers giving me the same problems and it has to be my adjustments. no one will just give it to you straight like this.

[@TheRepairSpecialist]

Thank you so much for your nice feedback. It's comments like yours that motivate me to continue making these videos. Craig 😀👍

[@ricgordon-Atix-]

thanks for your awesome explanation and taking your time to help. very glad to have found your channel. I'm going to go through and watch your videos, will learn so much very appreciative thanks again all way from new Zealand sincerely a new huge fan

[@TheRepairSpecialist]

Firstly, welcome and thank you for your awesome comment. I hope my vids meet your expectations. Please message me if you need any further clarification on anything. Craig 👍

[@wiley0714]

Bought my 1st paramotor with a Bing 84 carb. Supposedly millions sold, so i was seeking this type of explanation to help me not destroy my engine :)

[@wiley0714]

Thanks ! The illustrations are nicely done!

[@stephenfrancisvoros382]

That's a good simple example and like you said there are different carbi's, with my Yamaha AG100 1973 A model, mikuni VM20SH carbi, there is no high rev mixture screw, only one for idle stage, to adjust mid to high rev mixture it's done with the float level, a high float level is rich and low level leans it out, it's fun getting it right, my service manual says to turn carbi upside down after removing bowl, remove gasket and set float without spring in needle being compressed, from the high side of float to the surface the gasket seats against, is 19.2mm, though where I'm living in Cairns Australia, this tends to be a bit rich, there is a tolerance of 2.5mm of float level, I find at 20mm it runs good.

[@tjl8884]

perfect video.. Thank you. This is such a basic genius way to explain it..

[@fatdabs3310]

Ur amazing broski u couldn't break it down any better thanks

[@jesussavescars807]

You did a great job at explaining those I know all about cars new to carb work lol

[@dapsapsrp]

Another great but simple video.

[@seanclancy3972]

Awesome explanation.thank you

[@SpecialPenguinnn]

Thank you for this!!

[@moggridge1]

What a good explanation, thank you!

[@TheRepairSpecialist]

You're very welcome!

[@swafford501]

Do you have a video on the different sounds you will get for either lean/rich bog and sputtering

[@Quadrenaro]

My bike (1975 Suzuki TC185) died after a short ride to the auto store to buy a new spark plug this morning. I thought my new plug might have been the culprit, or maybe the new gasket I installed last night. I pushed it a half mile home. I had spark, so I checked compression. All good there too. So I looked at fuel since that had to be the cause. I put a new fuel hose on thinking it just might be really dirty, then realized.... This morning I adjusted the richness, and accidently set it to all the way in lean for both sides. I set it to very rich, and started kicking the starter like it insulted my mother. It started chucgging, then held about 500rpms. So I opened the fuel mixture more, and voila! She ran. The new gasket I mentioned earlier was for another issue I had. When I got my bike up to 45-50mph, I would lose power and the bike would chug until I was under 35mph, then pick up again. If it looks like a compression issue, and sounds like a compression issue, it's probably a compression issue. I took the head off earlier in the week, and what do ya know, no head gasket. I cut out the a gasket yesterday and installed it last night. After fixing my problem from this morning, I took it out for a spin, got up to 55mph and held it pretty good for a half mile. Then the gasket blew. No compression. I had a socket wrench for my spark plug, but not for the nuts on the head. So no fixing it on the road. So I pushed it back a mile and a half. Luckily I live out in farm country, so the road I was on was almost a straight walk home on level roads. It's also in the mid 60's fahrenheit so that's a plus. I love two strokes because they are easy to fix, but man when it rains it pours.

[@muundashatinwene4467]

Thank you this are the types explanation we looking for !my car floods the oil pan with gasoline any help?

[@grainger5133]

Another very good explanation. Thank you. When I am trying to start a strimmer and having problems getting it started (plug wet and spark ok) which of the adjustment screws is it best to start with. Fuel doesn't seem to be atomising

[@xristosmitroulakis8607]

thanks ..very good..so i have problem with my spark plugs after 3-4 kilometres are black..i have given 600 euro for service but nothing..i think is rich mixture of gasoline ..should i tightening the nuts of my carburator for the lean of mixture??

[@dernioo]

Working on a carburetor of a chainsaw actually myself. After months of struggling with my Jonsered (Bad starting, when it turns warm it stops working). I'm actually finding out on how to adjust the T, L and H on the machine. I already cleaned out some carburetors, the one of the Jonsered as well. So I got experience on cleaning them, not on how you have to 'calibrate' them. Thanks for your video. It clears out a lot for me. What do you think about a tachymeter, to read out the engine's RPM ? Useful or not?

[@incidentalauditor]

These videos man!!!! I still need help with blowback. I think it may be possible I need to screw in my "tic" idle screw and try my adjustments there. But I feel like it's something I'm missing. Would love your help!

[@72superlead]

Thanks for the explanation. I have a new Stihl km94rce trimmer that is hard to start hot. It went back and they replaced the carb, still same issue. It has been extremely hot outside so this could be the entire issue(?) but is it also possible it's running too rich? Thank you

[@MrL22]

That helped a lot thank you.

[@TheRepairSpecialist]

You're welcome!

[@TimsWorkshopTJY]

My mercury 60hp carb has just on air fuel mixture screw on each carb. The service manual states 1 1/2 turn out. For adjustment do I only go out 1/4 to 1/2 more for better run performance so it's a bit on the rich side for each carb? The manual states RPM’S should be 650 - 750 in forward gear for idle. Does setting the carbs affect the rpm then?

[@Foysol27]

Well explained ☺ thanks

[@mattfrapple7911]

Great vid mate. Question, I can set up the low screw to maintain highest revs, I can hear it getting rich anticlockwise and lean clockwise, but what is the best way to setup the high screw?

[@STAYBAD]

So if my engine runs perfectly in idle and full power but after checking the plug it looks too rich. (Plug wet) I just need to close the high a little bit to make it leaner ?

[@darknessgfx4901]

Hey bro can u tell me how much turns to open the hight and low screw at first and the carburetor have another screw that's not the hight and low screw so I want to know how much to open all 3 at first

[@darknessgfx4901]

Please answer asap

[@TheRepairSpecialist]

Hi. This is my video that I hope will answer your questions. Please go straight through to it via the link. Menu thanks indeed, Craig. kzbin.info/www/bejne/bWXTanmCoq6eodk

[@crossholy12]

thanx a lot~~~

[@dustindavis3348]

Thanks! Very helpful for the crab novice (me).

[@tomread7954]

Hi, really useful explanation but I'm having a problem getting my saw running nicely. I've just done a pot and piston replacement (first time) and now I'm finding that although I can get it to idle and sound OK once I work the saw the revs dont come back down to idle and obviously the chain keeps running. If I put the chain brake on then off again the revs will come down but not by much if I just release the throttle. What would likely cause this? Any help would be much appreciated 👍

[@TheRepairSpecialist]

Sorry to hear you have been having problems. It sounds like you could benefit by having your saw tuned properly. Please take a look at my video on how you can do this step by step. You can find in this link:kzbin.info/www/bejne/bWXTanmCoq6eodk . I hope this helps! Cheers Craig

[@rich-7421]

Need help, having watch many of your videos now. Which are really informative by the way. Currently trying to get a mini moto running which is running rich anything other than the carb which could cause this.?

[@theNebinator]

This may be a silly question but can you adjust the high screw on a hondaCG125 carb with out taking off the bowl?

[@yuridanylko]

What about rich and lean oil mixes?

[@AlexanderMonty]

Carb ninja. Thanks!

[@roygill73]

Hi just seen your very helpful video, u have a small question my chainsaw is quick new not used very much, however I've tried to start it and I manage to get it to start but when I pull the trigger it dies, I changed the petrol but still it dies, also if I try and leave it to idle it still eventually dies, any ideas plse. The filter doesn't appear to be blocked either. It's a titan chainsaw from Screwfix bought last year

[@roygill73]

Am I right in saying that I would need to adjust the L adjusting screw?

[@denrock5385]

how about for efi engine? how to fix rich fuel?

[@ukkomies100]

den rock check maf, check lambda and get it remapped. You might also have faulty injectors

[@averymeriweather3598]

I dont know much about carbs i bought a new set and it dont wanna start unless i have choke on and the gas held in a bit it back fires and dies when i let go of gas does anyone have any ideas cbr 600f3

[@Richard-dv5qo]

79 black max 175 2stroke. Idle screw out 1 1/4 turn doesn't want to run

[@craigsmith6170]

Hello I dont know which screw is h and which screw is l as they are next to each other 😅my chainsaw won't run at all

[@cranjismcbasketball2118]

👍👍👍👍

[@TheRepairSpecialist]

Thanks again. Craig

[@hotpapayasalad]

mines doesn't look like this

[@moto1425]

this is kinda wrong .... there will be a point where it will run super good and be fast as shit for about 30 sec at open throttle when its too lean ...then blow up ....

[@jimmythompson9394]

If you only had a real engine to do this on. So it would make sense.