Question about Poulan Wild Thing 18" 40cc Gas Chainsaw - P4018WT

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Need air / fuel mix and hi and low idle settings for poulan preditor

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  • poulans crap May 11, 2010

    50 to 1 will burn up your piston and score the cylinder wall real fast. I use premium fuel and I mix a little under 40 to 1 to ensure the piston ,ring,and cylinder are getting enough lubrication. I adjust low end out 2 full turns,then adjust hi end at max rpm,at max rpm I then richen the hi side until the saw very slightly loses rpm.Improper adjustment will burn out a piston,ring and liner in a heartbeat. Hey, I may be wrong but I just cut down a 10 foot tall 53 inch diameter hard maple and shes still running.

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Your manual says 40:1 (1 gal premium/3.2 oz quality 2-cycle oil). If you are going to tweek it anyway use 50:1 (1 gal premium/2.6 oz quality 2-cycle oil). Clean the air filter first. Lou

Posted on Nov 15, 2009

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The air/fuel is 1&1/2 to 2 full turns out from being seated, then adjust for best operating performance in 1/4 turns then try it and readjust if necessary, the speed adj can be adj to your specifications

Posted on Nov 14, 2009

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General advice aplicable for all gas powered chain saws;
Clean air filter regularly.
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If you still have starting problems, cylinder/piston compression is the next to check for. This is a more extensive job and should best be left to professionals, unless you are very skilled and have access to special tools required. Compression on modern saws are very delicately balance, so the slightest damage to either the rings, piston or cylinder can cause problems. Is is not alwas worth to replace the cylinder and piston kit, so compare prices and ask for advice at your dealer.

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First take a screwdriver and make a sign on it.Check and note how many turns are at Low speed ."L" adjustment.Then adjust High speed "H" at half a turn less than "L".Idle speed "T" adjust accordingly.
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best regards savumihai71

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