How to Adjust & Tune a Chainsaw Carburetor (Fixes Bogging | Hard Starting | Poor Performance)

How to Adjust & Tune Up a Chainsaw Carburetor. Doing This Fixes Bogging Down, Hard Starting and Poor Performance issues.
In this video you will learn the easy steps to take to properly adjust and tune up your chainsaw carburetor for maximum performance.
Caution:
If you choose to adjust the H (High) side carburetor setting be very carful not to set the rpm's too high. If you do you run the risk of overrevving the engine and causing damage to the internal parts. If you are going to make the high side adjustment be sure to have a tachometer available to measure the rpm's and check your owners manual for the appropriate maximum setting.
*If this video was a help to you give it a "thumbs up". If you have not already done so, please consider subscribing to this channel.
Disclaimer:
Although I have been following these procedures for many years; I assume no liability for any damage that may occur to any person or property as a result of the information provided in this video. I take necessary precautions (that I am aware of) when working on these projects but that in no way implies or creates any expressed or implied warranty or guarantee of any kind of particular result. Any injury, damage or loss of any kind to anyone or their property or anything related to information in this video is the sole responsibility of the user and not Helping U Online (this video).

[@George-iu7sz]

You know, you started off great. Your saw had exactly the same problem as mine. Bogging down (and THEN) difficulty starting. The problem is the you skipped all that and jumped to where your saw wasn't bogging anymore. That was EXACTLY the problem i'm trying to solve and you skipped it !!!!! I can't "warm up my saw" because it won't stay running and is hard as heck to start. This is VERY frustrating.

[@magdumpdaddy]

he literally explained how to turn them. lmao

[@ssholed]

As he explained the bogging is being caused by not enough fuel on the low side. Fix this turning the low side needle counter clockwise, you may need to increase the idle speed during this. Although there’s much better videos out there because I completely disagree with what he said about the high side. You do not need a tachometer to tune your high side.

[@carlford5287]

This is a very good video and it helped me a lot. Thank you for posting

[@helpinguonline]

Glad it helped

[@NgngounibaNgouni]

Is there extra adjustment cover

[@deda_Rajko]

I wish to repair chainsaws it seems fun, but I need a lot more knowledge for that and at least 20k dollars worth of equipment I replaced carburetor with a new one, added just a little bit more fuel on L because it was working fine on idle but bogging when you hit the trigger, then about two turns clockwise LA and everything was working absolutely amazing took me just 2-3 minutes to adjust everything, plug had perfect colour so that told me also that I adjusted everything just the way it should be, its so incredible to hear chainsaw working like its a brand new every time I replace carburetor Tho everything was well adjusted I kept playing with those screws whole day, giving my chainsaw too much fuel, way too much fuel and other experiments Those experiments are very helpful to understand things, when you add too much fuel and make things go the wrong way you will understand much better whats happening when you make things right Just never let it run low on fuel on H, thats destroying chainsaw a big time, thats the only thing I wasnt experimenting, I was adding a lot of fuel on H to see how much that kills the strength and power of chainsaw but I never dare to run it low fuel on H, thats the most dangerous thing you can mess when adjusting carburetor as well as turning screws clockwise the rough way which can damage your carburetor for good, that is also to keep in mind, be super gentle when turning screws clockwise until they reach the end, if you still keep turning pass that limit then carburetor could stop working properly cause you are drilling the hole with those screws

[@daultonruff2281]

Hope this works. After 3rd trip to Jensen Pilligard I need to fix it myself. The draining is the screw up I made. Due to surgery I just let the saw set for a couple of months, which I promised myself I would not do. Thanks for your help.

[@helpinguonline]

thanks for your visit.

[@Bryan-wq9vq]

😊 I can't warm it up if I can't get it started

[@genesmay6589]

Turn the high and low both in till the just seat and back them off 1.5- 2 turns and go from there if it's indeed a carb issue and not a fuel, spark, spark plug etc issue..

[@Vacrie]

@@genesmay6589what about the idle?

[@VAMCVETS]

If you can't get it running, more than likely, your L screw for idling isn't adjusted properly. I just had to adjust mine this morning as the saw was wide open on idle. I found a sweet spot in between where it wanted to die and before the chain started to turn. I haven't really had to mess with the H screw but might need adjustment if there is issues when cutting.

[@dieseldavebrown]

I have 4 stihl chainsaws and numerous deivces with small engines- 2 and 4 stroke (my preference are honda engines) and I have replaced numerous carburetors and I have been seriously thinking about buying a seperator and removing the ethanol from the high octane gas. The ethanol in my opinion is the main culprit though I agree any gasoline siting in the carburetor can cause problems (I usually shut off the fuel first and let the engine run out of gas.

[@highwatercircutrider]

Stop using ethanol fuel, it will eventually damage you engines and carb’s seals. Buy recreational alcohol free fuel and even then completely drain its fuel after use.

[@Someone91741]

Quick tip: if your chainsaw seems to bog down after squezzing the trigger like 25% the way. Turn it off instantly and change the fuel. I once was fixing my chainsaw and tried to start it. Started and ran for a few seconds but keeped boggind down and dying. Went to my neibghour, told him the problem and he was like: "Did you change the fuel?" And i was like: " oooh yea i forgot i had 3 year old fuel in it"

[@01butenkieler30]

Have to try it out😉

[@haroldnorthern1230]

Bubble burst ! My 017 stihl only has 1 adjustment which is thru the handle bar my ? Is which way to turn it to lower idle speed can't do the thru bar due to its not lined up right have to remove filter to assess carb

[@dewanehill1435]

Outstanding!!

[@annaaron3510]

Nice chaps.

[@wrangler6977]

I am surprised that there was no mention of checking the air filter. If it is clogged up you will not get enough air to mix with fuel to start or run properly.

[@edj0nes01]

My 1 year old Stihl 180 has one idle screw with a left hand screw. Bought Dec 2023. Had to clean the card and removed the only screw. No repair shop will tell you where to begin the screw setting.

[@Amarillobymorning777]

GR8 explanation

[@helpinguonline]

Thanks

[@keithtuck4743]

He knows my feelings

[@rightsideofthegrass8114]

If the H screw has been changed,where to start. you gave info about L and LA (screw in to bottom, the 1 1/2 turns out as start points, but said nothing about H. I have a 210 that I cannot get started - never reach the point of fine tune. New carb and ignition module only a few service hours ago. It would run for 20 minutes, then stop, unable to get it started. screws have been changed, now unable to start. Ideas?

[@BiggerAlan]

Did you double check to be sure your getting a good spark after you replaced the ignition module? May just have to continue playing with the H screw, turning it out 1/8” at a time. Don’t give up..

[@willyfromthehillies]

Start with H all the way in, the m. Back out 1 full turn

[@bluntforcetrauma2141]

That was my problem too. Will see what happens

[@jonpatrick66]

Thank you.

[@dsnx2]

Thank you

[@helpinguonline]

You're welcome

[@breckfreeride]

High altitude tuning is a bear... 9600 asl. Just getting it to start takes alot of monkey business.

[@ka5kla]

Missed most of what you said,I guess you need a wireless mike.

[@markxrocksollidptofit]

🙂

[@dukecannon2161]

adjust high speed screw to no load max rpm..then saw will have perfect highspeed mixture low speed helps with how it responds when you suddenly whack the throttle open...you are no mechanic

[@bluntforcetrauma2141]

So keep it all the way counter clockwise?

[@genesmay6589]

​@bluntforcetrauma2141 start it squeeze the throttle completely and adjust the H at full throttle till it runs smooth some say turn a quarter more after you find the best spot you'll hear it.