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Fairly new Husqvarna 142 only runs at high throttle. 150 Pressure test.

Fairly new saw only runs at high throttle. Problem started abruptly. 150 on cylinder pressure test. Maybe 5 hrs on saw.

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  • Anonymous Oct 23, 2008

    I have the same problem, your piston and bore are gone hence no bottom end :-( Shop tried to tell me there was no oil in the fuel but I know there was. I had maybe 4 or 5 hrs on mine too. Only fix is a new head and piston. Take the muffler off to confirm, once its off you can see the piston if its scratched you have the same issue as me.



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What type of fuel are you using.never put premiun it a saw.make sure that there is no alchohalin the fuel make the fuel burn too hot so it looks like a lack of oil in the fuel mixture.......also make sure that the spark plug is correct.......wrong plug will fire too early and either burn a hole in top of piston or show up as a lack of oil........

Posted on Feb 23, 2009


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I have a Husqvarna 142 chainsaw. The saw will idle, however when I depress the throttle the saw chokes down a dies.

What condition is your spark plug in?Is your filter clean?Is your gas-oil mixture correct? Is your gas fresh?Is your brake releasing?Is the blade and chain on correct?

Nov 21, 2016 | Husqvarna Garden

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My e series 142 spins the chain and idles insanely fast when I have the choke pulled out. Then when I give it throttle it calms down and then I can barely keep it idling. with throttle all the way pulled...

Check air filter- clean or replace, Make sure you have fresh fuel, A new spark while you are giving it a service, Do you know how to tune the saw? Start with basic settings 1 turn on the low and 1 turn on the high And adjust from there, You might have turned the idle up too high. The choke should always be fully in when saw is running. Hope this is a good start

Oct 04, 2013 | Husqvarna Garden

1 Answer

Chain saw carburator settings for husqvarna 61

Turn both screws CW to stops (lightly), then back out CCW 1-1/2 turns each. This is a basic setting and the engine should start and run. Allow the engine to warm up, then pull the throttle full on. Turn the H jet screw CW until the engine starts to speed up, but still 4-strokes. Proper adjustment occurs when the engine is 4-stroking, but immediately 2-strokes when cutting. This gives best power and lowest heat. Release the throttle and adjust L jet CW until the engine idles fairly well, but will allow the engine to 'follow the throttle'. Adjust idle speed screw so that the chain stops turning, but the engine continues to run. Hope this helps!

Jun 06, 2010 | Husqvarna "Chain Saw - 16" Bar, 3 Hp

1 Answer

142 chain saw. Starts but will not pick up when

Check the fuel lines for hardness, cracking, splitting, or end rot. Check the muffler for plugging. Check the carburetor fasteners for tightness. Are you using fresh fuel mix? If the carburetor jets have been adjusted, try turning both CW to stops (lightly) then back out each CCW 1-1/2 turns. Engine should start and run--allow to warm up. Pull the throttle full on, and adjust H needle CW until the engine starts to speed up, but still 4-strokes. Proper adjustment is when the engine 4-strokes, but immediately 2-strokes when cutting. Let idle and adjust L CW for fairly smooth running, but still allows the engine to 'follow the throttle'. Hope this helps!

May 13, 2010 | Husqvarna "Chain Saw - 16" Bar, 3 Hp

1 Answer

142 chain saw. Starts but will not pick up when

Remove, clean and reinstall the muffler and spark arrestor, if no better the "L" needle may need adjustment.
Carburetor Adjustment by
  • CW is leaner; to lean will destroy the saw. If over tightened closed (CW) the adjustment screw faces are easily marred; marred adjustments are difficult to impossible to set properly.
  • Clean the air filter; adjusting with a dirty filter can cause a run lean condition once cleaned and the saw run.
  • Clean the spark arrestor and muffler; if the saw cannot exhale it cannot inhale.
  • There are 2 wav (sound - idle & full - may not be highlighted) files that I find most helpful, I think you will too.
Most chainsaws die because they are are run lean. I am going to inject a little Lou theory here. Air leaks and defective fuel delivery systems account for most chainsaw failures. Constant adjustment of needle valves can easily camouflage more serious problems that result in burning up your saw.

If you have more questions or need additional help please reply below and I will get back to you. Thank you for using FixYa and Good Luck. HTH

Mar 21, 2010 | Husqvarna "Chain Saw - 16" Bar, 3 Hp

1 Answer

When i start my husqvarna 350 was running real good the other day now the idle races very high. and when in use it is teching so high what could cause this to happen

It has an air leak somewhere.
It is running lean; to lean causes failure. Is the muffler loose (fairly common on this saw)? A good saw shop can do a diagnostic pressure test that saves a great deal of time. Usually reasonably priced, try a local Stihl shop by phone.
You can try a little WD-40 at intake connections and crank seals. There are other sources of leaks.

Feb 12, 2010 | Husqvarna Garden

1 Answer

I am borrowing my friends brand new Husqvarna 142 which has never been used and she cannot find her owner's manual. What is the oil to gas ratio?

That should be a 50:1 gas to oil ratio. Just make should the measurements are concise, and that your fuel mixture is well mixed. If anything you,d prefer to err on the side of a little tto much oil rather than not enough.

If it is brand new, I'd suggest runninit at about half speed for a minute or three, then moving on up to about 3/4 for another minute.

When you go to cut, rev the engine up to a fairly high speed before putting the saw to the wood. In most cases, you want to let the weight of the saw do most of the cutting, versus bearing down on the sae. Yhat puts undue strain on it, sepecially for a used saw. Try not to allow the saw to "bog" down, so the engine speed drops considerably while cutting.


May 17, 2009 | Husqvarna Garden

1 Answer

My Husqvarna 142 chain saw, new out of the box, starts and runs well enough but left to idle it continually stalls. Any ideas?

The carb needs to be adjusted. Look for 2 adjustments label High(H) and Low(L). Low is the one that you want. Start you chainsaw and let it warm up and turn the L adjustment a until you are able to let it idle on its own. Hope this helps.

Jul 07, 2008 | Husqvarna Husky 165

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