Stihl FS 120 Service Manual

•
Pinch hook of leg spring into the
center of the lead, i.e. about
10 mm (3/8") from the end of
the lead.
•
Pull the lead back into the
boot so that the leg spring
locates properly inside it.
Important: If the spark plug
comes with a separate terminal
nut, always fit the nut on the
thread and tighten it down
securely.

On FS 400/450, FR 450, attach
the cable retainer to the cylinder.

Fit the boot on the spark plug.

Fit the shroud - see 4.1.

Remove the ignition module -
see 5.3.3.
•
Remove spark plug boot (1) -
see 5.1.
•
Pull off the cable retainer (2).
•
Remove the retainer.
•
Pull rubber boot (1) off the high
voltage output.
•
Unscrew the ignition lead from
the contact pin and pull it out of
the high voltage output.
5.2 Ignition Lead
(FS 400/450, FR 450)
250RA089
VA
250RA092
2 1
VA
250RA090
VA
250RA094
1
VA
250RA008 VA
250RA053
VA
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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