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  #31  
Old 08-22-2009, 06:55 PM
dishboy dishboy is offline
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Join Date: Dec 2003
Location: zone 6
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Quote:
Originally Posted by MyKisa View Post
running w/o guard affects coil, as it actually programs the speed of trimmer....coils on these stihls seem to be a prob from time to time
In 28 years of running trimmers with no guards and not a single coil failure , I would call B.S.
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  #32  
Old 08-23-2009, 11:06 AM
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Turf Dawg Turf Dawg is offline
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Any new update on your problem?
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  #33  
Old 08-23-2009, 11:37 AM
mictrik mictrik is offline
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Location: Long Island NY
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Quicktrip is very well rated gasoline in all grades... I would switch to a higher octane as per Stihl recommendation. When an air cooled engine gets very hot you could possibly see pre-ignition. Just switch to higher octane, 89 or better and check the coil.
http://www.toptiergas.com/retailers.html
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Homeowner (fixing up a neglected yard/house)
Stihl FS 90R (Trimmer)
Echo SRM-230 (Trimmer)
Stihl HS 45 (Hedge Trimmer)
Stihl MS-360 25" (Chainsaw)
Poulan 3700 20" (Chainsaw)
Echo CS-3000 14" (Chainsaw)
Scotts Classic (Reel Mower) Yep!
Shindaiwa EB802RT (Blower)
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  #34  
Old 08-26-2009, 08:09 PM
Xtremegreen Xtremegreen is offline
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Location: Central FL.
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Do you have an enclosed trailer? Could be vapor lock. After they get hot, is the fuel in the tank hot? Is the primer bulb fogged up?
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  #35  
Old 08-26-2009, 09:12 PM
JCPM JCPM is offline
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Join Date: Dec 2008
Location: Middletown, CT
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Quote:
Originally Posted by Smithco Lawncare View Post
We have 3 older STIHL trimmers that are used every day. In the middle of the day they all start acting up. They keep dying over and over. We just had the carburetor's rebuilt, new spark plugs, and new filters installed. It's like they get too hot and just die. Gets really annoying when you're trying to work. Any idea what the problem could be? Weird because they work fine for a few hours, then they start acting up.
Sorry if trhis was already mentioned but I didn't feel like reading all four pages. I used to have a similiar problem with all of my Stihl equipment. It would act up like that until one day it just woulnd't start. I finally switched over to mid-grade gasoline for my mix(after replacing all of the carburetors$$$) and haven't had a problem since.
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  #36  
Old 08-26-2009, 11:20 PM
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Sammy Sammy is offline
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Join Date: Jul 2000
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Stihl has 3 grades of 2-cycle oil.

In July, I always start using 93 octane.
In the fall, I go back to 89 octane.
I use Stihl HP 2-cycle oil. (Black Jug)
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  #37  
Old 08-27-2009, 08:37 AM
Ford850 Ford850 is offline
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Join Date: Aug 2007
Location: Northern Ohio
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Quote:
Originally Posted by Sammy View Post
Stihl has 3 grades of 2-cycle oil.

In July, I always start using 93 octane.
In the fall, I go back to 89 octane.
I use Stihl HP 2-cycle oil. (Black Jug)
All 3 grades of Stihl oil are called HP. The orange bottle is their standard grade and called HP. The black bottle is partially synthetic and called HP Super. The white bottle is fully synthetic and called HP Ultra.
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  #38  
Old 08-27-2009, 11:21 AM
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2brothersyardcare 2brothersyardcare is offline
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i use white like it better than echo oil
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