Stihl Chainsaw Carburetor Rebuild, MS 440

Tear down and rebuild the carburetor on our Stihl MS 440.

[@philz9835]

recently picked up a ms 440 magnum. big step up over my 028 wb. first thing I did was rebuild the carb, thanks to your instructions. great stuff. will be following.

[@Human1337]

Glad I helped =)

[@thedude8976]

BY FAR THE BEST VIDEO I'VE FOUND ON THIS SUBJECT EXCEPTIONALLY DONE THANK YOU FOR SHARING KNOWLEDGE WITH NO BULLSHIT

[@RonaldSkancke]

You're really steady. No coffee consumption? Thanks for the video. Very thorough and well done great camera work.

[@Mr42960]

I have done carbs on vehicles and mowers but never engines this small. thanks for taking the mystery out of it for me.

[@Human1337]

np!, Enjoy doing things like this, we all can benefit from it.

[@G19Jeeper]

Very good video. Took the OEM Zama off my 036 Pro this summer because the saw wouldn't throttle up. Bought a whole Zama replacement for $20 so never worried about a rebuild kit. I'll have to get one now and get the old one working again.

[@Human1337]

lol, I didn't even think about just slapping on a new carb, likely wouldn't have been much more epensive, and would have saved me some time. Did get this video out of it though, so I can't complain too much.

[@jackf1805]

I really enjoy watching your videos, keep up the good work

[@Human1337]

ty much =)

[@MrSparkums]

Hell yeah man you got my playlist goin!! I use a little ultrasonic jewelry cleaner on em when they get real dirty. Works great when rebuilding. Good vid!

[@pallavaagrawal4870]

Great training. You think and operate like an Engineer.

[@Antonio-ux9ur]

thanks for all the help! awesome vids with great explanation!

[@brand_b719]

Man I love watching your videos. Post them more often! And get yourself some huskys!!!! I highly recommend. The 372 xp. 576xp. 395xp. And the t540 too handle. Get yourself some!

[@Human1337]

I'd love to, just need to win the lottery first. Or find a sugar momma. Speaking of, would you by chance know of any rich and lonely ladies? lol

[@FishFind3000]

brandan bellotti my friend has a 576xp he loves it. Hardly uses it but still a good saw.

[@G19Jeeper]

brandan bellotti just don't buy a 575;)

[@nuthn2do]

Disassemble the whole carb, clean and then rebuild not a side at a time. When you popped that screen out at 12:15 and cleaned it any crap is now going to be in the needle valve

[@Antonio-ux9ur]

thanks for the note!

[@earthcrusher2500]

Hey, love it, always had my shop fix for me, and now that I have seen this video, I will try next time, hey don't worry about the anti social, I have done the same thing, especially when the equipment needed service, before the next day jobs, hey stay positive always focused on forward always,

[@cubleycat]

This video helped me fix a chainsaw, I cheated and stretched the tiny spring to compensate for the stiff diaphragm mainly to see if it would work, then I can get some service parts later ;-)

[@AdamShehan-pt8kx]

Hey man is that second gasket on the fuel pump side necessary, I only ever put in the paper over the diaphragm, thanks

[@Iguanaman25]

Cheers mate, thanks for the advice, carby kit is done and the 461 is screaming again.

[@adamhenninger]

Awesome how to “Human” chainsaw video! Helping out your fellow man.

[@RonaldSkancke]

Any idea how a repair facility could ruin the carb adjustment screws on a 044? They shouldn't have had to even run it for the repair but for some reason did and now the high and low screws just turn and turn with no stop. 250$ and a saw that won't idle.

[@dslag654]

Anyone know what the metering lever setting is for the Walbro car on these? Just rebuilt mine and discovered on the Walbro website that part number 500-13 is needed to set it properly. 9:50 in the video but no actual measurement/setting.

[@treesplease4053]

Superb!, Thanks man.

[@donfrank4429]

thanks for the good info on the ms440, I copied it for my files

[@mikego18753]

Thanks mate.

[@JustinCglass]

Love that music bro!

[@Human1337]

Sweet, I usually just put it on shuffle and get to work. Glad you approve

[@gibbyrockerhunter]

I have to point out something for those who just watch and do without thinking. If your two stroke has read vs port intake, sticking anything in the hole too far could fuck some stuff up. especially if you loose some of your paper inside the crank case.

[@johnclarke6647]

I put a little grease on the end of the lifter lever spring to make sure it stays put in its hole. I also put a little grease on the lifter lever pin, so it will stay in the lifter lever. The grease will wash out when gasoline gets into the carb.

[@johnclarke6647]

I always put a little grease on the lifter pin and the end of the spring. The grease will keep the pin from dropping out of the lifter and the grease on the end of the spring keeps it on the hump at the bottom of its slot as I insert the forked tang of the lifter into the needle. The grease will wash off when gas flows through the carburetor.

[@1d1hamby]

really good job with that video. keep up the great work and keep the videos coming. I'm glad you're not hanging out with other people and instead you're making these great videos.

[@Human1337]

LOL, chainsaws are always a good influence on you, unlike humans.

[@holgerzevenhuizen2840]

I really like your videos because i lear so much about the stihl models and fixing stuff, i have myself a 021, 066 red light and an ms 280. can you make your next video about tuning the carb?

[@Human1337]

Have that one in the works =)

[@samjisdasss5027]

How to avoid piston scoring. What is the contribution of carburator to piston scoring, piston damage, please replay me sir.

[@GoodDayFarm]

Great video! Great music! Keep 'em coming!

[@earthcrusher2500]

Hey, happy tuesday, hey be nice to her, I have the same saw

[@wayneessar7489]

Who needs friends when you have a chain saw! note to self: get chain saw.....

[@Human1337]

lol

[@ralstondaley6448]

Morning sir my name is Ralston i have a 390 stihl chainsaw it have the same problem as this 440 that you repair. Its just keep floading after using.am from jamaica

[@legare_15]

Haha, I'm the same way! Much rather be fixing something than be hanging out with "humans".

[@cubleycat]

Me too ;-)

[@cricket6009]

Humans are way overrated...like get over yourself already. Great video btw thank you .

[@JustinCglass]

Thank you for the vid

[@Human1337]

np =)

[@johnclarke6647]

The bracket you referred to is called a lifter lever.

[@FishFind3000]

What's a decent shape 660 running for I found one local for $700. 28" & 32" bars with chains. I haven't seen much online forsake so I can really judge the value. How much are 28-32" ES bars and chains going for? I'm just trying to figure out if it's worth it to jump in this. It's way more saw then I'll ever need but it's still something I NEED! Idk if you get my drift by I don't need it but I NEED IT!

[@Human1337]

LOL, I know exactly what you mean. I didn't need my big one, but I NEEDED it, and then I actually had to have it, lol. $700 is an amazing price for that saw and the two bars. I forget what the bars go for, but they're right at, if not more than $100 each. One thing I'd be cautious of is aftermarket parts. Ebay and craigslist are always full of big saws for cheap prices, but if you look closely at the pictures, and read all the fine print, you'll find that they're often saws that were busted, and repaired with hutzl or farmertech "both chinese companies that make knock off stihl parts" parts. If the saw is legit, I'd say go for it.

[@G19Jeeper]

FishFind3000 it depends on the area, but for SW Pennsylvania, that's a damn decent price on a 660 with two OEM Stihl ES bars. Those bars alone are worth $200 or more depending on the condition. If you can prove that the saw is still all OEM and wasn't rebuilt or was rebuilt with OEM parts by a professional, buy it! Even better if you can get the seller down a bit.

[@Human1337]

Even better yet, don't buy it and give me the sellers phone# =) j/k

[@the_burchfield1655]

i think they definitely need to bring the original 440 back. or atleast the 441

[@Human1337]

I believe they are, something about sourcing issues or some such. Will be seeing it again though from what I've heard.

[@the_burchfield1655]

ya i was told they are just remaking the 441 but our stihl rep said it should've been back around last Christmas but i still haven't heard anything. i have heard rumors of it being out on the east coast though

[@jesusisGod1434]

Okay Human, did your carb fix the 440?

[@Human1337]

Of course! lol Did have a problem though, didn't know they had the same air filter cover as a previous version, so in this one you have to cut out the insert for the compensation flow. Took awhile to figure it out.

[@jesusisGod1434]

Dremmel? Or how’d that go?

[@Human1337]

I think I just took a punch and knocked it out. If I remember correctly the casting was made with weak spots for it, as it is often done.

[@w99783]

Please can u do a video on climbing harnesses

[@Human1337]

I'll see what I can do, don't really have access to many harnesses to show what's what though. I'll see what we have lying around in the shop.

[@johnclarke6647]

I pull all the stuff out of the carb and throw them all in my ultra sonic cleaner.

[@pchili4]

Cause the old mechanic was a fuck face. LMAO!!👍 good video

[@shaneroper477]

My Mags probably due for new diaphragm. Doesn't want to keep going. Suck me dry! Said gas tank to carburetor......lol

[@SHADOWMOSESGARAGE919]

I think he was listening to TOOL during part of this video...

[@curves2476]

good job.

[@1d1hamby]

watch out for copyright infringement with music playing in the background.

[@Human1337]

Yeah, of all things, the very first youtube video I did where I cut off a toenail got hit with a copyright strike. All due to some classical music I had playing at the time, lol. Did a bunch of reading after that, so I should be safe. I only have it in the background, while I'm working, and not added into the soundtrack during editing. They'd have a damn hard case to make saying that the music is the main aspect of the video, which is what they'd have to prove to claim copyright, otherwise it's under fair use.

[@joshuahawkee1148]

omg

[@thedude8976]

LMFAO YEAH MUST HAVE THE SAME MECH MY HANDLE SCREW ON 066 MAGNUM HADE A SLOTTED SCREW. WTF

[@ralstondaley6448]

Morning sir my name is Ralston i have a 390 stihl chainsaw it have the same problem as this 440 that you repair. Its just keep floading after using.am from jamaica