Question about Husqvarna Chain Saw 20" Bar
I have a Husqvarna 359 saw which I purchased online about 3 years ago. As
for use, I am just about through the first chain.
The last two times that I have used the saw I noticed that after about 5
minutes of running the motor would not stay running at a low speed. Say
something less then 50% throttle. To get it started required choking at
Below is what I have done to date.
The last time I used it I checked the jet settings and adjusted the high
speed to its max open, to no avail.
Stopping the saw for 5 to 10 minutes restores it to a normal state. It
will start up and idle.
I started out to remove the carburetor until I figured out it appeared to
be a major effort. I did remove the top cover to the pumping diaphragm
and every thing looked good there. Same for the fuel hose in the tank,
looks good. But still the same problem. Saw runs strong for the first
Having thought this through a bit more it would appear to me that its a
fuel delivery problem. Which for me means a diaphragm, hose or seal on
the crank case. But again I was after a quick fix looking for debris in
the carburetor jets, and still would be if I can figure an easy way to
remove it, just because its easy to do compare to the rest.
A lot of 2 cycle engines do not run very well if they have been put up for a long period, (say for winter) with gas in the engine and carb. I finally learned the hard way that if you empty the gas tank and start the normal way and use up the fuel in the lines and carb, you don't get the residue build up from gas that has deteriorated over time.
Suggestion: empty the fuel out of the tank and run it dry by starting. g\
Get some gas stabilizer and add to fresh gas, fill the tank and run a few times. It will take awhile but you can gradually get rid of any residue build up
Hope this helps. Loringh ps Please leave a rating if appropriate Thanks
Posted on Dec 03, 2008
Read a number of posts on arborsite that this problem likely stems from the clamp holding on the carburetor. Clamp is plastic and stretches over time causing a air leak, Understand they recalled this part and have replaced with a more traditional metal clamp.
Posted on Jun 03, 2010
Check your in tank filter. There could be debris in the tank. Running for 5 to 10 min. could draw the debris to the filter and clogging it and letting it sit for a little while could let the debris settle. Just a thought.
Posted on Jan 15, 2009
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Posted on Jan 02, 2017
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