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Old 10-10-2007, 11:27 PM
South Florida Lawns's Avatar
South Florida Lawns South Florida Lawns is offline
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Location: usa
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Shtihl FS 85 pain to start

For some reason I can bearly get this trimmer to start when cold. After a hundred pulls it sputters every time I give it gas then it stops, does that maybe 10 times then finally roars to life. Oh and even sometimes when its warmed up on the next yard it will start right up and then die before I even start edging. What gives?
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Old 10-11-2007, 05:59 AM
Roger Roger is offline
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How old is the unit? How much has it been used?

Here is a saga of my FS85, and the remedy. When I had similar problems with my FC85 (edger), the same gasket and diaphragm kit solved the problem as well.

http://www.lawnsite.com/showthread.php?t=190221
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Old 10-11-2007, 10:46 AM
topsites topsites is offline
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Location: Richmond Virginia
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I always replace the air filter and spark plug first, see what happens, go from there.
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Old 10-13-2007, 12:53 AM
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South Florida Lawns South Florida Lawns is offline
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I think its just an adjustment. Gotta mess around with it some. When it does run some times at full throttle it will sputter and lose RPM's for a second or 2 like its diying then pick back up, some times it will run like its flooded and have half the power. I know its got clean fuel and air/fuel filter is fine also spark plug is new.
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Old 10-13-2007, 02:20 PM
topsites topsites is offline
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Ok, if it's that adjustment thing you can probably take it by the dealer and see if they can do that for you right quick. I know the procedure on most stihl's is you turn it all the way to one side then back off 3/4 turns but I can't remember exactly what way or which screws, your owner's manual could probably tell you, I have several around here someplace so if you can't find yours let us know someone might can find out.
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