Part 6/6 Husqvarna 272xp 2 stroke Carburetor setup & final adjustments

In this video I'll show you how I like to setup my 2 stroke carburetors. This is important stuff, if you screw this up you will do damage to your machine. If in doubt bring it to a shop they should be able to do it for you in a few minutes. The saw in this video is a Husqvarna 272XP but you can pretty much follow these steps on any brand, stihl, jonsered, echo, shindaiwa, poulan, troy bilt, poulan, homelite, etc.
This video used to be annotated with simple step by step instructions but youtube killed annotations, so thank you youtube.
Part 1: The buy ----- • Part 1/6 Husqvarna 272...
Part 2: Dissasembly ----- • Part 2/6 Husqvarna 272...
Part 3: More Dissasembly ----- • Part 3/6 Husqvarna 272...
Part 4: Reassembly ----- • Part 4/6 Husqvarna 272...
Part 5: First Start ----- • Part 5/6 Husqvarna 272...
Part 6: Running and Carburetor adjustments ----- • Part 6/6 Husqvarna 272...
#smallenginerepair

[@timcline161]

My 1989 262xp carb was set at shop when I bought it. Never touched low or high settings in 27 years. This summer I mistakenly filled fuel tank with fuel that was either too old or vapour barrier ethanol/lost octane. Saw sputtered and heated up, I quickly fiddled with carb settings before shutting off. New mix using chevron 94 no ethanol, saw running but needs carb settings adjusted properly, which I can now do thanks to this excellent video .

[@martindoucet3531]

Thanks for posting. My neighbor offered me a johnsored 2149 turbo if i would cut up his firewood for him last year. After I did the job with my Husqvarna, I realized the johnsored didn't even run. I just cleaned out the carb and tuned it per your instructions and now he's looking over the fence wishing he had his saw back lol.

[@williampauley613]

Thanks for a great video. You saved me a butt load of cash. I was on the way to buying a stihl weedwacker when I thought to look on youtube for a solution. I have a craftsman weedwacker and your video fit the need nicely. Thanks again.

[@2smokers4lifee]

holy shit finally found a normal vid thank u

[@owentimo]

Great. Thanks for the break-in tip for idling for 5 minutes with a rich low carb setting.

[@Coverly]

Excellent advice, thanks for posting! My chainsaw was driving me nuts. Tough to get started, but when it did get running it would cut out as soon as I pulled the trigger. :-( Tweaked the carb just as you said, it fired up first time and sounds like a V8 now. Just ripped a tree into logs in no time! :-)

[@paultonkin1360]

Many thanks, Great Video, Am off to reset mine which has been fiddled with!

[@J.R.723]

Great video but it sounds like your running it a little too rich at high rev

[@tylerhorsley8857]

Oh my lord thank you lol I'm pretty sure u fixed my work saw 😂

[@machinesnmetal]

Glad I could help

[@clivecarrington8814]

Thanks for the time spent making this informative video Excellent job Thanks

[@SRX-SSR440]

Nice video. Good straight forward information.

[@marktucker5837]

272 xp very good saw they run

[@machinesnmetal]

Absolutely. I've got 7 of them 😂

[@nranas]

great video,nicely explained and also added comments,which is very useful.Really appreciate.A rare video ought to see after carburetor work.

[@buubised]

thanks, gonna watch it again when my 254xp is assembled with new cylinder and piston :)

[@royhoco5748]

for newer model husky's you will need a carb adjustment tool, a screwdriver won't work on the new and improved adjustment screws

[@4397748]

I got Husq. 142 saw hight idle, dies, and takes several pulls to turn on again. I will check fot the things you already commented. thanks

[@initiallyeuphoric]

Thanks mr , very usefull , happy sawing

[@DaveyBlue32]

So where the same hell is the tree getting slayed by this asskicker of a sword...dude? Great videos...all the way around....your warm up advice for the nubes is definitely great and it appears that people gave listened...my brother! Keep on keepin on! Keep these great vids coming...man!!!! Over and out, Big Dave!!!!

[@hiscifi2986]

You need to buy a Top Cover for that machine, because it directs the cooling air from the fan. They are available on ebay for a few pounds / dollars, and fit 61, 266, and 272.

[@machinesnmetal]

i only had the top cover off to see the carb screws for this video, sold this saw a couple years ago

[@phillipkramer1897]

Glad you remembered to run it overly rich for the first couple tanks and just let it run at idle till its burned thru the 1st gas tank. After rebuilding a saw expect it to smoke for the 1st minute or so because there the one who worked on it should have put extra 2stroke oil in the crankcase and all over the top end to prevent scratching the cylinder walls when fitting it over the piston. Altitude and temperature can cause your saw to be out of tune too.

[@dynackosg1384]

What is the standard rotation for screw L and screw H on carburetor husqvarna 61 268 272?

[@tjhughes66]

Is it a have saw i have a 281 and it have

[@dattamore6498]

What is price in a part of injen

[@harddriverecordingandfilmsNY]

thanks for the video man!

[@reganteresa1662]

Does this also apply to a 266se from 83? it wuldnt start anymore and im working on it because i bragged about my mx past but im running into all kinds of problems that never really occured on the motocross engines, among them these settings. it occasionally stalls coming down from high rpm it also idles at different rpm after every touch of trottle It will stall when i hang it with the blade pointing down, it runs faster when the righthand side is facing down, and running slower when lefthand side is facing the ground unless you rev it .. .. i already took apart the carb and replaced as much as possible and cleaned the rest. the plug is ok although it was really black, as was everything inside the cylinder, it had been running with really bad combustion . seemingly it had been running fine and then on one day it started to smoke and eventually never started again.piston and cylinderwall is ok, compression is ok, fuelline and filter, ignitioncoils are ok. the airvalve for the tank is fine, although some noob wrecked the slit with his screwdriver the thing had some poor maintanance, sawdust clogged part 501222401!!. luckily it isnt sand, and the clutch was installed incorrectly and some other really stupid mistakes maybe you know a good replacement carb? maybe i should start thinking about octane, 98 is becoming increasingly difficult to obtain and modern fuels eat away on older machines. you can get all kinds of funny results because of it.. the original carb is discontinued . the machine is for occasional use And i intend to get this thing running fine so i can keep my big mouth, it already runs but irregular. kinda like my pans when im cooking with the lid on em, but i dont know how a chainsaw is suppose to run on idle. i have the blade off and when its on my lap it sometimes bounces under different rpm, i know low range rpm should be 2500 and max rpm 11500, i dont have a tacho, but i take it should run like a 125cc dirtbike LOL i see someone made a comment ""new and IMPROVED ''adjustment screws HAHAHAHA. if you are like that guy i maybe ask someone else. ''that saw exceeds 25 years .''. yea right LOL WOW u get some really stupid dorks on your videos hahahaha wannabe's with powertools its exactly why i always dig into stuff like this i want an answer for a guy in the know imma check ur channel and a basic question: the L(min low rpm) H (max high rpm) are turned to set maximum and minimum rpm so why exactly does it have some sort of 3rd idle screw that pushes against the trottle lever? is that for weatherconditions or something? And does it inviolve re-adjusting the L and H rpm setting? i couldnt find it in the manual, its kinda confusing

[@Ben-et8wh]

how about the lowside jet though?

[@frankhunter5869]

I have a 272 xp. I changed the jug and piston for one that had the compression relief valve tried adjusting the carb out. 1 1/2 turns will not be ideal if I close the low to 1/2 turn it will ideal for a few but Stahls any ideas

[@machinesnmetal]

Did it work fine before you changed the jug?

[@frankhunter5869]

@@machinesnmetal yes it ran good

[@machinesnmetal]

Put the original parts back on it

[@ravinderjitsingh6302]

First good knowledge thanks But u r hiding holes when u do setting Then there is third hole on top of two how to set that one Ur start ones but other have problems they start again stop Or the start but very hard Or they start accelerator them when u leave it it stop ??

[@machinesnmetal]

The third hole allows.adjustment for the idle speed. It just turns a screw that presses on the throttle rod as if you squeezed the trigger slightly.

[@ljurhallabocken]

Wyh you run the saw without the topcover. No topcover no cooling on the cylinder.

[@sabaucostel8471]

i have...L H and...up i have a T... WELL, i set the L and H... but how aboute T? when i turn it off...i cant start engine...and when its open abote 3 time its start but not stable!

[@Jesusfreak39]

hello i have a 254 Husqvarna with new piston in it i can get it to crank run for about 6-10 secs then dies any idea thanks

[@austindenotter19]

carb. filter, fuel line.

[@richandrose6348]

Ditto. I replaced all of my fuel lines, filter, air filter, plug, etc My fuel lines were rotting away. Fired up with a few pulls. 240, btw

[@grasscutter88]

On my stihl trimmer I turned the hi speed screw in until the engine lost rpm and then backed it out until it ran the highest rpm and then I backed it out about 1/2 turn more. Is that ok? It took like 3 turns to get it to run lean and then I backed it out probably 1 full turn. They had it set so rich from the factory that I could burn through an entire tank of fuel in about 30 minutes.

[@grasscutter88]

Now the trimmer has great throttle response from both idle and full speed and lots of power. Before the trimmer would lose power after about 20 minutes of running.

[@brianmerrihew3753]

Have a husqvarna 440 with h/low carb screws that need a special screwdriver end any suggestions

[@markalexander5380]

Amazon $5-10

[@fastrivers812]

I just purchased a Husqvarna 395xp. The shop I purchased from stated that they didn't do any adjustments on it because it's done at the factory. It starts and runs fine (to me) but should I make adjustments?

[@machinesnmetal]

probably not, just break it in slowly. if it's fuel injected it should take care of its own adjustments, if you take it to a different elevation you probably should make adjustments if its not efi. nice saw by the way!!!

[@mattseymour8637]

Do you adjust the carb on a 550xp in the same place?

[@machinesnmetal]

should be relativvly close.

[@Sensei948]

@@machinesnmetal compresion 272 xp ?

[@Saws_Performance]

@@machinesnmetal 550xp is autotune

[@grleaves]

Hey man i set up the carb exactly how you said and she rip at full throttle for about 10 seconds then die. what should I look for?

[@machinesnmetal]

+grleaves Cracked fuel pickup line, plugged fuel filter, plugged fuel tank vent are the first simple things to check.

[@grleaves]

+machinesnmetal yeah I found the vent the next day. now I've just been trying to tune for a couple days high idle no matter how many turns out on the the idle screw.

[@M0NXF]

+grleaves sounds like a air leak check your crank seals, gaskets etc for leaks

[@earthsskin]

cracked seals?

[@machinesnmetal]

plugged fuel tank vent?

[@firstnamelastname7476]

in your subtitles you mention 'idle mixing screw'.. does that mean the L?

[@machinesnmetal]

FirstName LastName Yeah, idle mix is the screw marked "L"

[@Sensei948]

@@machinesnmetal 140 psi good compresion 372 xp oe?

[@machinesnmetal]

Yep. Idle mix screw is the same as the L screw

[@Saws_Performance]

fucking hell its like a music for my ears

[@austindenotter19]

Hey buddy, this is about the same as making horseshoes at the blacksmith shop. That saw exceeds 25 years.

[@machinesnmetal]

ok

[@robobiss444]

Austin Denotter those 272's are badass dude. Age doesn't matter!

[@vasilegirigan5096]

👍💯🤝🤝🤝🤝💯👍

[@davidulrich7112]

Hey...you don't mention wearing ear protection--while listening to this video? :)

[@chrisshell1094]

What a waist of time. So glad you made a video of carb adjusting and did not explain how you adjusted the settings once the saw was warmed up . Total waist of time

[@machinesnmetal]

You can thank KZbin for that, when I made that video I used precise annotations throughout which explained every adjustment procedure that I was doing. At some point years ago KZbin decided to eliminate annotations and cleared all of the instructions from every single one of my videos.