Fixing A Stihl Pole Saw That Starts But Won't Stay Running

Heck yeah! Another stihl 4-mix.
And it doesn’t matter how expensive a machine is. You leave fuel in it the carb is gonna gum up.
Personally it’s definitely user error.
(That thing was in great shape wow)

Love your videos man

I call that a chain saw on a stick 😊

Great fix. I run my equipment out of fuel after use.

Hey bro what's up? I was interested in purchasing this same model polesaw but is very expensive here in the Caribbean. The last time I priced it out it was almost $10,000.

I believe that the gas is the issue with this pole Saw it probably was ethanol gas in the tank

I did, even pump gas but I used Stihl orange bottle fuel till I started using Tru-fuel. Blessings

Great video these are very quality pieces of machines do you know what year this saw is from and dose it have a Zamia carb or walbro

No I drain fuel in system and carb bowl, haven’t had problems since. I also don’t keep fuel over five months. I drain from all my equipment and use in my vehicle. Then replace it all. I have several outboards and miscellaneous equipment and I’ll start it all every 30 days if I use it or not during spring, summer, and fall 👍

I don’t because I use true fuel 50:1 ethanol free gas in my bg 50 and bg85 blowers

Your videos are short and always on point. Gasoline for most part is culprit in hard starting if there’s a fuel shut off valve I shut the valve and let it run empty if not I try to complete my work with the lowest amount of fuel and either run it dry or pump it out that is my normal usage. Long term I always empty fuel tank. Question what do think was the main issue the carb or valves ?

Had the same problem with my ht 101 new carb works brand new

well for me it all depends really but yeah if i leave fuel in my engine stash i always use a nice fuel stabilizer in there and well hardly any problems in the long run too etc.

For my two cycle equipment I switched to TrueFuel about 10 years ago, have never had a problem since. I’ll leave it in my string trimmer all winter long and it starts on 1-2 pulls in the spring. I’m just a homeowner and use about maybe 5 cans a year so to me it makes financial sense.

I have to admit that I do leave fuel in some of my gas powered equipment over winter, gas generator with steel tank being one. I make sure to use treated gas for no more than a year and try to start it once or twice during this time. Not a good idea to leave gas in small two stroke equipment though… and I’ve never had good luck with canned fuel as far as engine performance, always needed to tweak with carb to make it work so my mixture of MMO, Sea Foam and Stabil proved to be working great for long term storage

What is the rejuvenating liquid you use for the diaphragms? Have you had any success?

I do leave fuel in the tank over long storage. Normally always works fine afterwards. Only one time where it hasn’t started after long storage with fuel left in the tank and clogged up the fuel jet which I had to fix over this weekend

What was the solution you soaked the metering diaphragm in?

Epa leans the carbs too much

Most would have just grabbed a carburetor

Long term storage alliws fuel to evap in lines leaving detergents in to plug up the jets, so use stabil and run them once a week in off season

I Leave fuel in my trimmer but now it Smokes on Choke

I never leave fuel for long self storage.

The only thing I leave fuel in when it sits is my snowblower. My mom bought it new and never did any maintenence until it had some issues starting 4 or 5 years ago. I went over the thing and did a few maintenence things and its started and run perfectly in the cold ever since, and thats after leaving gas in it every summer.

My Stihl fs38 trimmer Stars then dies even with new carby and cleaned screen arrester.

I don’t even mess with these carburetors for two cycle engines. They’re a pain in the ass. There’s too many small parts to lose,too many diaphragms to rip. I just buy a cheap carb for 10 bucks and call it a day.

Fuel doesn't care if it's in the tank of a Craftsman, Homelite or Stihl. Fuel goes bad in the same amount of time, regardless of what it's in.

When I was younger, I adjusted carbs many times when the problem was elsewhere. Now, carb adjustments are my last resort.

I live in the south, and there's not much of an off-season here. So there's not really any long-term storage issues here. Except, maybe for pressure washers. Those don't get used regularly. I have unintendedly left fuel in a pressure washer for too long.

I use Aspen 2 in all my two stroke equipment and leave fuel in all of them and I've never had any problems

Within the next 30 years , gas will be going away .

You’re rejuvenating bath concerns me

THANK YOU FOR THE VIDEO

I use nonethanol fuel and Amsoil 2cyl oil for all 2 cycle machines. No issues. But i do not leave fuel during winter storage

All 4 cycles use ethanol free fuel with stabilizer added. Never leave fuel in systens.

Where we are, there are only 2 seasons. Summer, summer, summer, and maby fall. Try to guess where. You got it Florida. Around here, im always using my stihl year round. I never have to really worry about letting fuel sit in the machine.

I have a hyper tough weed eater having issues running when running pressing throttle it starts to bog down in the we need her head completely stop spinning and sometimes engine cuts off but if I take the weed eater attachment off the motor runs just fine

Have a lawnmower with the original Briggs engine more than 20 years old. Most of those years has been stored during winter out of the elements with a full to the brim tank of high quality pure gasoline with stabiliser added. Starts first or second pull every spring. Do your maintenance, & always add stabiliser to your fuel & mixes. Year round.

Thankful I found your video. My FS 90 trimmer also does not want to stay running. I have watched multiple videos on two screens that I want to be sure to check out: 1) inlet screen that can be removed to clean and 2) spark arrestor. I just could not find the location of the spark arrestor until your video with an almost identical Stihl base. I plan to take my FS 90 apart and clean it once I buy a few parts (at the least…grease, bulb, filter, spark plug, and gasket). Cannot remember if I have ever replaced the spark plug in the 8+ years I’ve owned this machine. I learned a lot today and now know I have some overdue maintenance to do.

Whenever I remove a spark arrester, I have this crazy habit of forgetting to put them back in. My mom has a Husqvarna blower. She owned one that started being down on power and not running well. She took it to a local mechanic who said the engine was going out, so she bought a new one. Two years later, this one started doing the same thing. We eventually determined that the spark arrester was the issue. They were on back order, so I took it off and cleaned it. About two months later, it was doing the same thing. I cleaned it again. When the same issue started happening again a couple of months later, I did a spark arrester delete. It never happened again.

My neighbor put a multi attachment pole saw/hedger on the curb. I picked it up to fix in the spring. A week later he passed away.

I replaced the carb, fuel lines and oil now it runs well. I offered to give it back it to his widow and she declined. I picked up a compatible attachment trimmer for $40, now I have 2 engines that will run a trimmer, pole saw and hedger. Not bad for the price

Mine is brand new. When I throttle up the saw works as it should. When I raise it to the limb, the chain stops moving when it comes in contact with the limb even while giving it gas. Please advise

I like to run my equipment that I don’t use much in the off season with some fresh fuel in it. I use stabilizer in my fuel. And a good 2 stroke oil that has stabilizer in it already. But even with stabilizer I still run my equipment just to keep the carb from getting gummed up.

Thanks to you I no longer keep fuel in my Stihl weedeater

Thank you Sir, great detail and tips on how to proceed. I was happy that my Stihl HT-133 OEM carb was fixable with your help! True that the no-name carbs are cheap and may work initially but long term I am skeptical. Replacing carbs you learn nothing, rebuilding carbs you learn a lot so thank you.

GET IT RUNNING, SPRAY MYSTERY OIL IN IT, SOFTENS GASKET, HOLD IT WIDE OPEN..

Thanks