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Author Topic: Husqvarna 359  (Read 276 times)

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Offline man of stihl

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Husqvarna 359
« on: December 01, 2014, 04:41:44 pm »
I'm currently working on a 359 that runs fine cold but after some long cuts it leans out when hot. I'm going to replace the fuel line and filter (which looks OK) upgrade the intake clamp, replace the crank seals, and kit the carb. In your guys expert opinion, what do you think the issue is? I like to change all these things while I have every thing tore apart. And I hate to fix one thing at a time too because of waiting on the shipping. How will it run if the vent is bad? Any ideas are appreciated.
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Offline 660magnum

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Re: Husqvarna 359
« Reply #1 on: December 01, 2014, 05:35:00 pm »
Usually the lean out is seals
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Offline 3000 FPS

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Re: Husqvarna 359
« Reply #2 on: December 01, 2014, 06:38:20 pm »
I agree seals and intake boot.
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Offline 660magnum

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Re: Husqvarna 359
« Reply #3 on: December 01, 2014, 06:47:04 pm »
There's other areas on a 359.

The automatic decompression devices never worked properly in the long run

The threads for the carb screws in the carb end of the boot are usually stripped out in a old one.

Sometimes the cylinder base gasket has leaked.
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Offline man of stihl

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Re: Husqvarna 359
« Reply #4 on: December 01, 2014, 07:47:49 pm »
OK thanks guys
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Offline stihlbro

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Re: Husqvarna 359
« Reply #5 on: December 01, 2014, 10:01:40 pm »
I would set it for a pressure/vacuum test cold. If it holds, run it till it's warm and redo the test. Does it have the Walbro or zama on it?
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Offline David Young

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Re: Husqvarna 359
« Reply #6 on: December 02, 2014, 09:33:44 am »
Quote from: 660magnum on December 01, 2014, 06:47:04 pm
There's other areas on a 359.

The automatic decompression devices never worked properly in the long run

The threads for the carb screws in the carb end of the boot are usually stripped out in a old one.


or the flange that the carb bolts into is warped.

Sometimes the cylinder base gasket has leaked.
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Offline man of stihl

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Re: Husqvarna 359
« Reply #7 on: December 02, 2014, 12:10:23 pm »
Quote from: stihlbro on December 01, 2014, 10:01:40 pm
I would set it for a pressure/vacuum test cold. If it holds, run it till it's warm and redo the test. Does it have the Walbro or zama on it?
its a Walbro Joey
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Offline Bluegill

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Re: Husqvarna 359
« Reply #8 on: December 02, 2014, 02:19:23 pm »
Quote
The automatic decompression devices never worked properly in the long run

Only the very early ones had the auto decomp, but yes they are no good! Easy to bypass though.

Also the Walbro hda 199 carbs can have a problem. The right kit and a hole drilled in the metering cover will fix it.

Very good saws, I'm building two right now.
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Offline 660magnum

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Re: Husqvarna 359
« Reply #9 on: December 02, 2014, 02:27:21 pm »
"the right kit (D24HDA) or drilling a hole in the metering cover . . ."

Not necessary to do both
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