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What is the proper fuel mixture for a husqvarna chain saw ?

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The Correct Fuel Mixture Ratio
All two stroke engine will use a 50 to 1 ratio using today's two stroke oils. I once used an old chainsaw probably from the 1960s, that had a sticker on it that said to use a 25 to 1 fuel/oil ratio, but that would have been using two stroke oils of the time period the chainsaw was manufactured. In that chainsaw I used 50 to 1 ratio with no problems. Today's two stroke oils compared to yesteryears are more efficient at lubricating. It is like comparing today's synthetic motor oil to motor oils of decades ago. All the equipment I use in landscaping, anything from a weed eater, leaf blower, chainsaw, hedge trimmer, use 50 to 1 ratio, and I use all types of makes and models, Stihl, Homelite, Husqvarna, Shindaiwa, and Echo, Sears. I mix up a 5 liter fuel can and use it in all of the equipment for my customers and for my landscaping. To calculate the ratio is simple. For instance , if you have 1 gallon of fuel it is best to break it down into smaller units, like ounces. One gallon = 128 oz. You then divide this amount by the ratio of the mixture which is 50 to 1 (50 parts fuel, 1 part oil). So therefore 128 oz of divided by 50 = 2.56 oz (you would just measure out 2.5 oz ) of two stroke oil. If using metric, say a 5L gas can, you would break this down to smaller units, which would be milliliters. 5L = 5000 ml. 5000 ml of fuel divided by 50 = 100 ml of two stoke oil.

Posted on Jul 25, 2009

  • Phil Sartori
    Phil Sartori Sep 20, 2013

    Thanks Bill! phil

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All two stroke engine will use a 50 to 1 ratio using today's two stroke oils,

Posted on Jul 25, 2009

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Best bet would be to find your manual online: http://www.husqvarna.com/us/homeowner/support/download-manuals/

Some of the newer ones have a separate oil tank, so no mixing required.

Posted on Jul 25, 2009

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Posted on Jan 02, 2017

dontbother10
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SOURCE: Fuel Mixture Husqvarna 455 Rancher Chain Saw

Page 17 of your Operator's Manual says 50:1.


Fuel/Oil Mixture

  1. Use a quality 2 cycle oil and mix it to the OIL supplier's recommended ratio. Today I use Stihl 2 cycle oil mixed @ 50:1 in a Pioneer that I purchased new in 1980. There are no gouges or scratches on the piston or cylinder and I have no carbon build up on the piston top. The manual (on stone tablets) recommends 24:1. Over the years the mixture has leaned from 24:1 (Saw Recommendation) to 28:1 (Lawn boy mower recommendation) to 32:1 (Oil provider 8oz/2gal - used for many years) and finally the last 5 (±) years 50:1 (Stihl 2.6oz/1gal)
  2. Most gas in the US of A contains ethanol; not good with chainsaws. Mix what you expect to use within a few months. Anything over 6 months old use up in a 4 cycle engine. HTH
    Lou

Posted on Sep 25, 2009

dontbother10
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SOURCE: What is Fuel Mixture Husqvarna 455 Rancher Chain

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Posted on Sep 25, 2009

  • 211 Answers

SOURCE: husqvarna chain saw, model 455 will not oil properly bar and chai

hi cindilou50
check the oil filter from the oil tank,the oil line ,the worm gear and the oiler under the clutch.Clean the ways where the oil goes with compresed air.(after you fill out the oil tank)Also check the oil hose.

best regards savumihai71

Posted on Dec 01, 2008

dontbother10
  • 2220 Answers

SOURCE: looking for fuel mixture for Husqvarna chain saw.

Fuel/Oil Mixture

  1. Use a quality 2 cycle oil and mix it to the OIL supplier's recommended ratio. Today I use Stihl 2 cycle oil mixed @ 50:1 in a Pioneer that I purchased new in 1980. There are no gouges or scratches on the piston or cylinder and I have no carbon build up on the piston top. The manual (on stone tablets) recommends 24:1. Over the years the mixture has leaned from 24:1 (Saw Recommendation) to 28:1 (Lawn boy mower recommendation) to 32:1 (Oil provider 8oz/2gal - used for many years) and finally the last 5 (±) years 50:1 (Stihl 2.6oz/1gal)
  2. Any fuel containing ethanol is not good with chainsaws. Mix what you expect to use within a few months. Anything over 6 months old use up in a 4 cycle engine. HTH
    Lou

Posted on Oct 03, 2009

dontbother10
  • 2220 Answers

SOURCE: How do I adjust the mixtures?

Is this helpful?
Madsens.com
http://www.madsens1.com/saw%20carb%20tune.htm
The "L" adjusts acceleration and smooth running. The "H" adjustment is almost completely how it performs at full throttle (should be adjusted for performance in a cut IMO). HTH
Lou

Posted on Dec 13, 2009

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50:1. Your manual is here.
[PDF]OM, 235 e/ 240 e, 2008-02, Chain Saw - Husqvarna www.husqvarna.com/.../HUSO%2FHUSO2008_USen%2FHUSO2008_USen_O08020...
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