Question about Husqvarna Chain Saw 20" Bar

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Chainsaw quit cutting well, the bar gets half way down in a log and it quits cutting, the engine even starts to choke down

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  • shawn clarke May 11, 2010

    what brand of saw is it? does it cut straight?



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Remove the bar and chain--check the oil port in the side of the engine case where the bar fits up to. Start the engine--oil should ooze out of the port. If not, service the pump, lines and tank filter. If oil does ooze out, clean the chain groove, and the two oil passages that feed oil to the groove. If the outsides of the chain groove have flared out from chain wear, file these edges off (about 45 degrees) til they don't project beyond the bar vertical surface so that they don't catch on the kerf cut. Make sure the chain is being sharpened and adjusted properly. The 'choking down' may be from the engine overheating while trying make the cut. The engine should 4-stroke when running at speed, but immediately 2-stroke when cutting. Make sure the air cleaner and muffler are not plugged. Hope this helps!

Posted on May 04, 2010

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Bar might be bent, rakers between the cutting teeth need filed down or one side of chain is sharper than other

Posted on Apr 10, 2013


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I can assure you it wont be leaking oil, as the only oil it uses is mixed with the fuel.

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The make, model, and occationally the serial number help us solve your problem.

Does the engine quit running? (Carburator needs adjustment)
Or does it continue running and chain stops? (need clutch refaced or replaced.) (to aggressive a chain for the size of the engine)

I think you replaced parts unnecessarily. Maybe quicker and cheaper to visit your friendly neighborhood chainsaw shop. A good one can repair it even if they do not sell your brand.

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You may need a carb rebuild kit. they are thin rubber diaphrams and will harden up and warp if not used regularly or if the fuel is improperly mixed.
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If it's flooded, remove teh plug under the cover, blow off the sparking end and pull the engine a few times without the plug. this will empy the cylinder. WATCH YOUR EYES!

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