Stihl FS 120 Manual

5/20/2018
STIHL FS 350 Service manual.pdf - slidepdf.com
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- Remove the shroud -see 4.1.
•
Use standard commercial long-
reach 13 mm socket to unscrew
the decompression valve.
- Install new decompression valve
and tighten down to 14 Nm
(10.3 lbf.ft).
- Fit the shroud.
Warning!Exercise extreme
caution when carrying out
maintenance and repair work on
the ignition system. The high
voltages which occur can cause
serious or even fatal accidents!
Troubleshooting on the ignition
system should always begin at the
spark plug. See "Standard Re-
pairs, Troubleshooting" handbook.
Note:The electronic (breakerless)
ignition system basically consists
of an ignition module (1) and
flywheel (2).
The illustration shows the FS 200.
- Remove the shroud - see 4.1.
- Pull off the spark plug boot.
- On FS 400/450, FR 450, take
cable holder off the cylinder.
•
Use pliers to grip the leg spring
and pull it out of the spark plug
boot.
- Unhook the leg spring from the
ignition lead.
- Pull spark plug boot off the
ignition lead.
- Coat end of the ignition lead
(about 20 mm/3/4") with oil.
- Fit spark plug boot over the
ignition lead.
- Use pliers to grip the end of the
ignition lead inside the spark
plug boot and pull it out.
4.8 Decompression Valve 5. IGNITION SYSTEM 5.1 Spark Plug Boot
2
5
0
R
A
0
9
1
V
A
2
5
0
R
A
0
8
7
V
A
1
2
2
5
0
R
A
0
8
8
V
A
FS 120, 200, 300, 350, 400, 450, FR 350, 450 23

Stihl FS 120 Specifications

General

Power source	Gasoline
Type	Brush cutter
Cordless	Yes
Head type	Nylon line
Handle type	U-type handle
Engine power	1.8 hp
Product color	Black, Metallic, Orange
Uncertainty K	2 m/s²
Sound power level	110 dB
Fuel tank capacity	0.64 L
Vibration emission	4.9 m/s²
Engine displacement	30.8 cm³
Sound pressure level	98 dB
Cutting diameter (max)	- mm

Weight and Dimensions

Length	1760 mm
Weight	6300 g