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  #1  
Old 08-10-2002, 06:39 PM
Double D Double D is offline
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Join Date: Sep 2000
Location: Memphis, TN
Posts: 142
Stihl FS85 won't idle

1 year old Stihl fs85 that was running perfect, now will not idle after about 30 minutes of hard use trimming 3 large bushes. I put the string trimmer attachment back on, and now the trimmer will not idle. I can start it, and keep it running by constantly keep some throttle pressure, but as soon as you let off, it dies without hesitation. Any ideas, or help would be very much appreciated.

Thanks in advance.

Double D
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  #2  
Old 08-10-2002, 06:40 PM
Currier Currier is offline
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Join Date: Jan 2000
Location: Fruita, colorado
Posts: 557
I have the same problem with my fs 85 and it is 1 month old.
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  #3  
Old 08-10-2002, 08:19 PM
Jimbo Jimbo is offline
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Join Date: Feb 2002
Location: Central Maryland
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If it runs when you put slight pressure on the trigger maybe the cable needs adjusted. Follow the throttle cable back to the carb and there should be an adjustment to tighten the cable.

When you release your finger from the trigger does it idle down real low until it stops? If so, this is the most likely the problem.


Jim
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  #4  
Old 08-10-2002, 08:20 PM
leprechaun_50 leprechaun_50 is offline
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Join Date: Apr 2002
Location: S.W. Mn.
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I have had an FS85 for several years, and the only time I have had a problem with it not idleing was if gas to oil ratio wasn't right.
If you have other gas/oil mix equipment maybe the ratio isn't the same.
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  #5  
Old 08-10-2002, 10:24 PM
Jimbo Jimbo is offline
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Join Date: Feb 2002
Location: Central Maryland
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Has the Air filter and spark plug been changed?

You might want to check these items as well if its not the throttle cable.
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  #6  
Old 08-10-2002, 10:52 PM
Doc Pete Doc Pete is offline
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Join Date: Mar 2002
Location: New Jersey
Posts: 3,469
Stalling is usually the low end jet. You could try a bottle of "injector cleaner" mixed with the correct oil ratio in the machine.
Pete
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  #7  
Old 08-19-2005, 05:08 PM
southlin southlin is offline
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Join Date: Aug 2005
Location: Lake Charles, Louisiana
Posts: 43
to your question bout press.wash

i do rinse my machine, NOT PRESSURE WASH. you take the chance of forcing water in your bearings and the grease out. RINSE.

Also i scrape under the decks once a week. And use a paint brush to apply thin layer of grease under the deck. Extends the life and build up removes easily.
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