Chainsaw Won't Start - What To Look For & How To Fix - (Husqvarna Carburetor Cleaning)

Diagnosing and Fixing a Chainsaw that will not start.
In this video I will walk you thru the step by step process you would take to diagnose why your chainsaw will not start so you can repair the problem. This particular chain saw was taken to a small engine repair shop and the mechanic was unable to get it running. I told him I would look at it for him and see if I could find something he may have missed. I was able to get this chainsaw running. You will see the steps I took to check what the problem could have been and how I fixed it. I returned it to him so he could sharpen the chain and install the brake (which he kept at his shop).
You will also learn how to diagnose, disassemble, clean and reassemble a 2 cycle engine carburetor. This is the most common reason 2-stroke engines stop running (especially ones that are not frequently used). You would use this same process in rebuilding your carburetor... just replace the parts shown in this video that come in the kit for your carburetor. Many homeowners throw good equipment away because of a clogged carburetor when it is a fairly simple fix.
Today's fuel quality is poor and if left in the carburetor over a period of time it will eventually clog the small ports in the 2 cycle carburetor.
Go with me through this step by step carburetor cleaning process and you will be on your way to using your weed trimmer, blower, hedge trimmer, chainsaw and other equipment, in not time!

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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).

[jackryan]

Thank you, thank you, thank you. I followed your step-by-step video and solved why my Echo chainsaw wouldn't start. It's now running flawlessly. You, literally, saved me from spending hundreds on a new machine. Your are awesome, my friend!!! Information is POWER!!!

[gahngyea]

I took the same saw to a repair shop a few years ago and they told me that I needed a new carb, $85 bucks later I was good for a while. But I didn't realize that the alcohol in gas will turn to varnish if you don't use it up. I am determined to fix this problem this time, as I also did with my lawn mower twice. Now I buy gas with no alcohol in it. Excellent video, Thanks

[scatter]

Just a tip....While you have the carb apart, hold the diaphragm up to a bright light and see if it has a hole or a crack in it.

[longsack]

Wow straight forward instructions. You gave me the confidence to open mine up and get it running I have never committed myself to fix a small engine before.
Respectfully Sack

[michaelblake]

Thanks for the best most informative video. My 236 runs but won't keep running. The fuel is old but ethanol free. I think the 2stroke that was pre mixed with the petrol has gummed up the carb. I liked the way you didn't skip bits like the throttle rod not being connected. Its an easy mistake that a layman might miss. Thank you

[lancefaure]

Dump old gas and replace with fresh. Add a little Seafoam engine treatment to the fresh gas+oil, cycle primer bulb 5 times, pull cord 5 times with choke on, then let sit for 24 hrs and soak. Next day try to start again. Fixes itself 8/10 times in my experience if the diaphragm and fuel lines are good with no saw breakdown.

[MrJkm]

My fairly new Echo CS 490 wouldn't start, or even fire when I shot ether into the carb. I'd about given up when my wife found this video. (I had watched several others, to no avail). I cleaned the carb., and now it starts and runs like a champ. THANK YOU for posting this!

[ricardothompson]

Clear step-by-step troubleshooting and maintenance techniques. Excellent.

[tyecad]

It took a bit of searching to find a video that took me where I was trying to get to. Thanks for the help. Speaking from experience, be careful about soaking up too much carb and brake cleaner through your hands.

[danielpluess]

Thanks for the great instructions, the secret is to check same for same diaphragms, some aftermarket ones look the same but some dont have the small holes. Yes I found out the hard way

[bearpuf]

What a delight to see a smoothly explained theory, tear-down, diagnosis, and rebuild. This is an excellent video beyond just showing how to repair because the instructor is clear to describe what he's doing along with suggestions. Thanks

[gocyclones]

Straight to the point and no BS. Thank you!

[williamrobarge]

Simply super lesson for me. 30 year old Husky 51 with the same problem

[brianharvey]

Just sent the link and asked my grandson to follow it to get my chainsaw to fie again. Very clear instructions - thanks.

[gmks]

Thanks for taking the time to make this video. Very informative and helpful.

[hardnoxgrad]

I like your style of describing every step of your way on the projects. 👍🏻🇺🇸🇺🇸🇺🇸. Thank You.

[craigr.]

Great video, I watched your carb cleaning portion and cleaned my carb, put back together, also cleaned my spark plug, adjusted the spark plug screws and running like a champ again, hadn’t used it in about two years, cut down a tree that was next to the house after finished it

[tobytollefsen]

You make it look EZ. You saved me $$$ to the shop. Thank you for the awesome video.

[lthibault]

Hi Folks, don't forget to add gas stabilizer when storing your machine, it is often the source of problems. Also use the best gas you can find, you'll be glad you did. Those small engines are fairly simple to fix, just practice preventive mechanical measures and you will avoid most common issues.

[Thebowzer]

New subscriber here. The best chainsaw carb repair on the internet. Excellent.