Help with Husky 359 problems

[stihl025]

Tree service guy friend of mine has this 359 e-tech that has been nothing but problems for him. A while back, he had a problem with it not wanting to hold tune. Says it was "surging" at WOT. Brought it home and inspected everything. Found that the carb mount was loose (sucking a little air). So I tore everything down, cleaned the carb, carb kit, new fuel filter, plug, etc. Needed general maintenance as well. Got the saw to tune. Ran great.
Now a few months later, same deal. I brought it home with me today and everything seems to be tight. I expected to find the same problem.

Here's the deal. I can get it started. Will run to wide open throttle without hesitation. While at WOT, it will surge slightly, singing between 4 strokin' and lean almost in a rhythmic pattern. Let go of the throttle and it will wind down and die. Try to start it and it won't start without choking it. Once I get it started, it will hesitate to throttle up and want to die. Back to WOT and same thing.

I opened and closed the fuel cap to see if there might be a vent blockage, but makes no difference. I reset carb setting and started from scratch, no better. I even took the non e-tech muffler from my 357XP to make sure I wasn't having some kind of blockage at the muffler. Intake boot has metal ring, not plastic.

I need some help...

 

[Brad101]

Have you replaced the fuel filter yet? Or checked the fuel line for cracks?

 

[timberwolf]

Is it a plastic clip on the intake? They are known to be a problem and there is an intake with metal band to replace it. check over the intake , sounds like an air leak or leak in the pulse line.

 

[stihl025]

Is it a plastic clip on the intake? They are known to be a problem and there is an intake with metal band to replace it. check over the intake , sounds like an air leak or leak in the pulse line.

I have replaced the fuel filter. The retaining band on the intake is metal. I had to do that upgrade to my 357XP.

Let's see: No change in rpm's when the saw is turned in any direction. Just got the thing cleaned up, I will have a look at the carb mount, fuel line, and impulse tube.

 

[deer slayer]

wish i could help, not a husky fan!! oh wait buy a stihl, problem solved:hmm3grin2orange::hmm3grin2orange:

 

[outdoortype]

There was a problem with some of the 357/359 carbs

Not long ago, Red started a thread about a problematic 359 that displayed similar symptoms to those you describe. Jacob J informed us that evidently Husky has had problems with the Walbro carbs(HDA-199 I believe) and replacing them with a Zama carb that also requires a new carb flange. Husky hasn't announced a recall-I'm guessing because the problem has not been widespread. I tried to post a link to this thread but somehow I wiped out my entire post.

 

[stihl025]

Fuel and impulse lines okay. Gaskets on both sides of the carb mount appear to be okay as well. And the tank vent is working properly.

 

[stihl025]

Not long ago, Red started a thread about a problematic 359 that displayed similar symptoms to those you describe. Jacob J informed us that evidently Husky has had problems with the Walbro carbs(HDA-199 I believe) and replacing them with a Zama carb that also requires a new carb flange. Husky hasn't announced a recall-I'm guessing because the problem has not been widespread. I tried to post a link to this thread but somehow I wiped out my entire post.

Boy that's funny. I did have a problem with my own Walbro carb on the 357 and finally got frustrated and bought a brand new one from Bailey's. Saw has been fine ever since. Never thought it could have been an epidemic. I will start searching, but if anyone knows the link, it's appreciated.