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

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My 455 rancher bogs down when i give it gas it's not even under a load new plug air filter, fuel filter, made carb adjustments like manual said running 93 octane gas.it,s still bogging

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Make sure the chain break is releasing all the way. When the saw is not running release the chain break and make sure you can move the chain back and forth by hand. If you can there is a small fuel filter in the gas tank that should be replaced. Make sure the fuel lines are not spongy because they could collasp when the engine is running starving the carburetor for fuel.

Posted on Mar 14, 2011

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2 Answers

455 rancher wont rev


remove the muffler and try running it if ok open the muffler and clean off the screen

Apr 15, 2012 | Husqvarna , No.455 Rancher, 20" Gas -...

1 Answer

My Husqvarna 455 starts great and sounds great without pressure but when you put the saw under pressure of cutting it bogs down and runs up and down. I am not sure the problem. I have changed spark plug,...


If you haven't done so already I would run some spray carb cleaner through it. If the idle speed is okay then I would adjust high and low screws going very slowly about 1/16 of a turn at a time and run engine up and down after each adjustment. I would remove the muffler and clean the spark arresstor screen to get all the carbon deposits out of it.Carb. cleaner and a medium stiff wire brush work well for this. I would also check the vent in the gas cap to make sure it is open. I also use a product called sea foam in all my engines.For my chain saws I mix 5-6 ounces with 2 1/4 gallon of gas.It really does a good job of keeping everything internally clean. Hope this helps you. Thanks.

Jul 28, 2011 | Husqvarna , No.455 Rancher, 20" Gas -...

1 Answer

55 rancher-put new after market piston,ring and cylinder new sparkplug,cleaned carb,tried adjusting hi lo-new gas filter,new fuel line ,cleaned air filter-will start but on acelleration bogs and dies took...


I had a very similar problem with a stihl 029 farm boss.I did everything you did except I took it to a shop to do the piston and ring replacement. When I got it back the first time it would run for about two mins. then die.I fought it for a couple of weeks then took it back and expressed my displeasure. Then checked it all over and replaced piston and ring again and it runs great. They told me they could not get the right compression with the first one and thought the groove for the ring was cut to deep.I hope this is of some help to you. Thank you.

Mar 21, 2011 | Husqvarna 455 Rancher 555cc 35 hp 20"...

1 Answer

Starts ok soon as u try to rev it bogs out die new carb no change checked muffler it ok fuel filter fuel line allok


Does it have plenty of compression, they are very prone to gummimg the piston ring in if you have been useing a large fuel oil mix.

Feb 11, 2011 | Husqvarna , No.455 Rancher, 20" Gas -...

1 Answer

I have a 09 455 rancher that will start with choke on . Idles with choke off but bogs when throttled up. I believe the bottom carb gasket is leaking. Parts houses say call for carb parts.


If gas is leaking from the carb, can you see if it is a damaged fuel line with a leak or coming from the carb itself. If it is the carb tighten the screws on the carb itself. If neither one is the problem you probably do need a carb kit installed. Hope this is helpful. Best regards and good luck.

Jan 08, 2011 | Husqvarna , No.455 Rancher, 20" Gas -...

1 Answer

455 rancher engine bogging down and starting to smoke


Make sure you are using the correct fuel mix.

Check fuel tank vent, prone to blocking an can effect the performance
Clean air filter, check Spark plug.

Oct 03, 2010 | Husqvarna 455 Rancher 555cc 35 hp 20"...

1 Answer

While cutting the chainsaw bogs down and stops


Check the air filter and the muffler if either are plugged up it will not run smooth. Carb hi and low screws are very sensitive so if you change them, only move them a little at a time.

Jan 02, 2010 | Husqvarna , No.455 Rancher, 20" Gas -...

2 Answers

I have a husqvarna 455 rancher. It was working


Take it right back to repair shop and have them fix under their warranty.

It is possible the fuel hasn't got to the carbureator due to plugged fuel filter or fuel finder OR an air leak in the fuel hose.

Sep 15, 2009 | Husqvarna , No.455 Rancher, 20" Gas -...

1 Answer

Husqvarana Rancher 55 , how to clean the exhaust port


Cleaning the exhaust: on the saws I've worked with it was just to loosen two bolts at the front and then the exhaust is off the saw. Clean with brake cleaning fluid and blow with compressed air, let it dry before assembling. Don't forget to clean the fine mesh at the output side underneath the lid if present (i.e the spark arrestor).

Make sure to have your carb adjusted properly afterwards.

May 18, 2009 | Husqvarna , No.455 Rancher, 20" Gas -...

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