Question about Husqvarna , No.455 Rancher, 20" Gas - Powered Chainsaw

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Carburetor tool i need to adjust my carb on my husky 455 chainsaw but it has a special adjusting screw. where can i get the adjustment tool.

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  • Ian Summerfield
    Ian Summerfield Jul 07, 2010

    sometimes they put a plastic cap over the screws to stop people playing with them.describe the screw?

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The splined Poulan Carb Adjustment Tool, 530035560, which was readily available for less than $20.00 before 2013, has become scarce and bottom the feeders are price gouging. Check ecrater.com and curtschainsawparts.com. I just received one and it is the quality item at very reasonable price, $14.00

Posted on Jul 06, 2013

  • thatron Jul 06, 2013

    The splined Poulan Carb Adjustment Tool, 530035560, which was readily available for less than $20.00 before 2013, has become scarce and bottom the feeders are price gouging. Check ecrater.com and curtschainsawparts.com. I just received one and it is the quality item at very reasonable price, $14.00

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Unless you are skilled enough to make your own, you are stuck taking the saw to a servicing dealer as they are the only ones allowed to possess the necessary 'D' head screwdriver. Give thanks to the EPA for mandating the prevention of mal-adjustment pollution.

Posted on Jul 07, 2010

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There are 3 things I can think of that would cause that problem. First, the saw was not warmed up enough. Second, did you cut the choke back after your saw warmed up? The third cause would be that your carburetor is not adjusted correctly.
If you did the first two things, then you could try adjusting your carburetor. The carb has to have a richer mixture when it's cold than when it has warmed up. If you have your carburetor set with the mixture too high, it would start but then choke on the extra gas when it was warmed up. Thus, you should lean out the carb.
Huskys carb adjustment screws are on the same side as the oil and gas fill caps. They are above the gas cap. The screw on the left is for leaning the carb, the one on the right is to richen the mixture.
So, turn the left screw, sometimes marked "L", counterclockwise to richen the carb. Adjust a very small amount at a time. Let it run a little, cut some wood, then adjust again, if need be.

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Hello,
My name is Dane and I am going to assist you in solving your problem.

You will need to adjust the high speed setting on your Carburetor jet. Turning the screw out just 1/2 turn or so should do the trick. It is not so hard to adjust the Carburetor, however, yes you do need a special tool that is very hard to get your hands on, in order to adjust the jet screws. They don't make many engines with plain screw heads anymore. The newer Carburetors are factory set lean so they can pass emission standards. Since you just bought yours, a local husky dealer should adjust the mixture for free. I hope I've helped. If you found this reply useful, please leave me some THUMBS UP, if you feel I

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Lou
There are tabbed plastic caps on over your fuel adjustments. Thank the EPA once more.

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