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What is the best way to remove carbon build-up on the exhaust port of a Huskvarna model 141LE chainsaw?

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Carb cleaner the best

Posted on Aug 23, 2010


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My WeedEater fb25 blower piston ring appears to be stuck and unmovable in the piston. Is there a spray that will dissolve the carbon in the piston groove that will free up the ring? Thanx Tom B

Sea Foam.

I've known many that have had success using that, but it all depends on how badly it is stuck.

For minor sticking and to give it enough compression to start and run you can drop 3 to 5 drops of sea foam directly into intake (remove air filter cover and filter first).

For major- Take spark plug out and pour some on top of piston, let sit for a few hours, may need to add a little more periodically this can break up carbon build up.

One more thing to consider is the need to check exhaust port (or spark arrestor) on muffler to make sure it is not clogged with carbon build up.


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Carburator problem

i would check the screen inside the muffler for carbon build up its made to open

Aug 13, 2012 | Garden

1 Answer

Refilled the fuel on my Huskvarna chainsaw and now it wont restart

Just check that it is mechanically sound, remove the muffler and check the condition of the piston skirt through thre open exhaust port, any signs of scuffing or damage and the cylinder will have to come off the assess the damage,

Oct 24, 2011 | Husqvarna 455 Rancher 555cc 35 hp 20"...

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Craftsman blower wont reach full power. it is a professional hand held model. i think it is the same as the huskvarna brand. 170mph 470cfm 2stroke.

Could be Excessive carbon build up in exhaust caused problem. Clean exhaust on muffler side of engine.

Oct 14, 2011 | Craftsman Garden

1 Answer

I have an Echo Grass Trimmer, GT2000. It runs and idles ok, will not up rev up to speed. It runs at about 1/3 of what it should, on high. I've replaced the spark plug; taken the carb apart and cleaned...

This sounds very much like a blocked spark arrestor in the muffler outlet, or the exhaust port is blocked with carbon, remove the muffler and look up the open exhaust port for signs of carbon build up, somewhere in the muffler there will be a mesh gauze ( spark arrestor ) either clean this or remove it completley.

Sep 08, 2011 | Garden

1 Answer

Echo edger stalls when gas is pressed. It is easy to start but will only idle and has no power to work.

Check and see if the muffler and/or exhaust port is plugged with carbon. Many 2 cycle mufflers use a small metal screen called a spark arrester that can get plugged by carbon and will not allow the engine to rev up. A small hand held torch works best for burning the carbon off of the screen and from the insides of the muffler. Hold the screen with a pair of pliers while heating it up. Same thing with the muffler. Carefully tap the muffler after you have burned off any excess carbon to remove any large pieces still inside. You can carefully use a small flat blade screwdriver to scrape out any carbon from the exhaust post (opening) in the engines cylinder.

Jul 19, 2011 | Garden

1 Answer

My Husqvarna 125BT leaf blower will not make full power anymore. The past few weeks I noticed a strange sound best described as as a rattle similar to a loose baffle. Starts and runs fine but only makes...

Try pulling the muffler off and checking for blockage in the exhaust port, expecially the small hole above the main exhaust port. This is the same thing that my 125bt was doing this season and after cleaning out the carb with no improvement, I found some carbon build up in the exhaust port. The small hole above the port was completely blocked. After cleaning up all of the carbon buildup, it ran back to full power again.

Oct 30, 2010 | Husqvarna Backpack Blower 25cc, 140 Mph,...

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Homelite chainsaw starts and runs for about 30 seconds before stalling out. Any help?

Check your fuel lines for cracks it may be sucking air ,also make sure the fuel filter is still attached since they like to come off in the tank and then dirt gets in the carb,if thats the case replace your fuel lines and filter ,replace with fresh fuel (correct mixture ratio is a must). You may want to take the carb apart and clean out the small internal screen it has and look for any cracks in the diaphrams.You should also check your exhaust to make sure its clear of carbon build up.I repair saws , trimmers and many other 2 strokes and find most of the time its bad fuel lines and carbon in the exhaust port,but also alot of times I find damaged pistons and scored cylinders with very little compression.Good luck to you.

Aug 12, 2009 | Poulan Pro 42CC 2 Cycle Chainsaw, 18"

1 Answer

Huskvarna model 141le wants to run full throtle all time


Adjust H,L and T from the carb.When the engine is warm check the spark from the sparkplug:It has to be a strong violet spark(not flame).Disassembly the carb and carefully clean it.Check the fuel pump(it should be tighten not bended),Check the fuel filter and air filter.;the gas tank ventil and the fuel hose.
regards savumihai71

Dec 04, 2008 | Husqvarna Chain Saw 20" Bar

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