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Why won't my saw start after it is warmed up and i shut it off or after it runs out of gas

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Chain saws are very intense, small and powerful engines. They are also very demanding. they require fresh gas, proper mix, a clean air filter, a new and properly gapped spark plug and a clean carbeurator. If any of these items need to be replaced do it first.

Now, let's clean the carbeurator. Get a bottle of a fuel additive called seafoam and follow the directions as you add it to the gas can you use to fill your saw. After you run a couple of tanks of this new and improved fuel thru your saw you will solve your problem.

Posted on Nov 18, 2009

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Posted on Jan 02, 2017

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Husqvarna chain saw turns off

Hi Janel
Gotta love those Husky's.
Mine is a 266 and it won't die so I can't justify buying a new one. My on/off switch broke so I jammed it into the ON position and use the choke to shut it off. I'm VERY comfortable with dooing this, but lots of others may not be, and NOBODY else uses my saw.
Depending on the model you have you may be able to get a replacement switch.
Hopefully using a lot of gas means that you're getting a lot of work done.

Sep 05, 2015 | Husqvarna Garden

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Won't start when motor is warm. Saw for half hour and shut it off and it refuses to start again

this sure sounds as if it's an overheating problem , this causes the ign ckt to over heat and shut off the spark at the plug , id get a real good look at the cooling fins and make double sure theres no sawdust or other stuff in there blocking up the works , if you continue to run saw to overheat eventually it will damage the ign ckt to the point it wont come back on and saw wont run ,Period.

I use strong compressed air to blow out stuff stuck down in the ribs of saws(wear glasses )

Aug 06, 2015 | Husqvarna 550 XP 50.1cc 16 in. Autotune...

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My poulan 4018wt has been a hard starter from new. It started to act up out of the blue and started shutting off halfway into the cut and didn't always want to idle right. So I changed the spark plug,

I'd say the most probable culprit is the fuel.... I'd first try dumping the tank out, mixing fresh gas with the addition of a fuel stabilizer and start the saw. It'll quickly vent any old gas in the line and should begin to run fine with the new mix. If not, consider returning it to the service center for adjustment.

Never use gas that has sit on a shelf for months at a time as it becomes 'stale' (for lack of a proper term). Todays 'formulated fuel' can be a cause a bit of a problem for some small engines. Anytime you refuel, shake the can to remix prior to filling.

The oxygenated nature of the blended gas sometimes causes the chain saws to run a little 'lean'...meaning too much air to fuel ratio which could be a portion of your problem. A lean running saw will run hot and scoring of the piston or cylinder wall is possible. Some finely tuned professional saws need carb adjustments between the summer blend and the winter blend gas.

Mar 24, 2015 | Poulan Garden

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My poulan 14in. wild thing starts.runs,then stalls and is starving for gas.

I'm sure you already tried adjusting the fuel/air mixture screw or screws. Look at the adjustment screws again, is there a plastic cap on the screw? The cap will have a slot for a screw driver. Look at the cap closely is there a tab that limits the adjustment of the screw? If there's a tab limiting how far you can turn the adjustment carefully pry or pull the plastic cap off. Be careful you don't want to bend the adjustment screw. Under the cap you should find a slot in the actual head of the adjustment screw. Turn the screw about a 1/2 turn counter clockwise then start the saw and let it warm up. Once the saw is warmed to running temp adjust the screws slowly a little at a time until your saw runs at normal idle speed by itself. I was amazed after I did this with my saw. Once my saw is warmed up I can set it down and it will idle until it runs out of gas. You may have to play with the adjustments to get it where you like. Basically the plastic caps on the air/fuel mixture screws are an EPA thing to reduce emissions, in other words keep the engine running as lean as possible. Running to lean causes stalling and since 2 cycle engines are lubricated by the oil in the gas to lean can wear the engine.

Oct 21, 2014 | Garden

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Starts fine, runs fine (full throttle) for about 30 seconds and then just bogs down when throttle is depressed (or still held in). But still idles fine after it has warmed up a little.

More than likely it is your fuel line collapsing. When the rubber gets stretched, worn, aged, or run on gas with 10% alcohol, especially the last, the rubber gets weak and collapses on itself at full speed. That is why it runs till the suction collapses the line but still allows enough through to idle. Once the saw is shut off the line will fill up again when the suction stops and you can run till the line is empty again. It is worse if your filter is clogged also. Went through this when they came out with this crappy gas in the late 1980's. Had to carry spare fuel lines while logging because the lines could not take the alcohol. That is why I burn airplane fuel in my saws. No alcohol or storage problems. If you look up around Oct 1 or 2 I wrote how to change the fuel line. Hope this helps.

Sep 10, 2013 | McCulloch 16 Inch Gas Chain Saw MCC1635AK

1 Answer

My cutoff saw won't start, compression is good, has oil/gas mix, gets spark from wire but sparkplug was dirty so i cleaned it and she still won't turn over

If the saw briefly runs when you prime the carb and/or cylinder with gas then most likely fuel is not getting thru the carb. Try rebuilding the carb and replacing the fuel filter first. You can also search on youtube and google for troubleshooting tips.

Jun 03, 2012 | Homelite Xl-98a, Xl-98c, Xl98-d, Xl98-e...

1 Answer

Poulan 330 22 inch

Check all bolts for tightness, especially the cylinder bolts. HOLD IT A SECOND did you add oil to the fuel?. If not you could damage engine very quickly. You have to have the proper mixture of oil and gas. Your owners manual should tell you the proper mixture.

Apr 11, 2009 | Poulan Pro Chain Saw 46cc 20"

1 Answer

Chain saw emitted sparks and now does not start.


When the engine get warm and die(I suppose)check the spark at the sparkplug.You can let the saw run until it ran out of gas and you will not distroy the engine.Change the sparkplug.

best regards savumihai71

Dec 16, 2008 | Garden

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