Original Instruction ManualPrinted on chlorine-free paper
Printing inks contain vegetable oils, paper can be recycled.
© ANDREAS STIHL AG & Co. KG, 2011
0458-250-8621-C. VA1.J11. 
0000000173_005_GB
FS 120, FS 120 R, FS 200, FS 250, FS 250 R
English
1
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Contents
Allow only persons who fully understand 
this manual to operate your trimmer / 
brushcutter.
To receive maximum performance and 
satisfaction from your STIHL trimmer / 
brushcutter, it is important that you read, 
understand and follow the safety 
precautions and the operating and 
maintenance instructions in chapter 
"Safety Precautions and Working 
Techniques" before using your trimmer / 
brushcutter. For further information you 
can go to www.stihlusa.com.
Contact your STIHL dealer or the STIHL 
distributor for your area if you do not 
understand any of the instructions in this 
manual.
Make sure your unit is equipped with the 
proper deflector, handle and harness for 
the type of cutting attachment being 
used. Always wear proper eye 
protection.
Guide to Using this Manual 2
Safety Precautions and Working 
Techniques 3
Approved Combinations of Cutting 
Attachment, Deflector, Handle and 
Harness 18
Approved Power Tool Attachments 20
Mounting the Bike Handle 20
Mounting the Loop Handle 22
Adjusting the Throttle Cable 23
Fitting the Carrying Ring 24
Mounting the Deflector 24
Mounting the Cutting Attachment 25
Fuel 28
Fueling 29
Fitting the Harness 30
Balancing the Trimmer/Brushcutter 30
Starting / Stopping the Engine 32
Operating Instructions 34
Cleaning the Air Filter 34
Engine Management 35
Adjusting the Carburetor 35
Spark Plug 36
Engine Running Behavior 37
Lubricating the Gearbox 38
Replacing the Starter Rope and 
Rewind Spring 38
Storing the Machine 40
Sharpening Metal Cutting Blades 40
Maintenance and Care 42
Main Parts 44
Specifications 46
Special Accessories 48
Maintenance and Repairs 48
Allocation of STIHL Incorporated 
Warranty Declarations 48
STIHL Incorporated Federal 
Emission Control Warranty 
Statement 49
Trademarks 51
Warning!
Because a trimmer / brushcutter is a 
high-speed cutting tool some special 
safety precautions must be observed to 
reduce the risk of personal injury. Care
-
less or improper use may cause serious 
or even fatal injury.