Stihl FS 120 R User Manual

FS 120, FS 120 R, FS 250
English
45
Engine
STIHL single cylinder two-stroke engine
FS 120
FS 250
Ignition System
Electronic magneto ignition
Fuel System
All position diaphragm carburetor with
integral fuel pump
Weight
Overall length
Features
Noise and Vibration Data
For further details on compliance with
Vibration Directive 2002/44/EC see
www.stihl.com/vib.
Sound pressure level L
p
to ISO 22868
Sound power level L
w
to ISO 22868
Vibration measurement a
hv,eq
to
ISO 22867
The K-factor in accordance with
Directive 2006/42/EC is 2.5 dB(A) for
the sound pressure level and sound
power level; the K-factor in accordance
with Directive 2006/42/EC is 2.0 m/s
2
for the vibration measurement.
REACH
REACH is an EC regulation and stands
for the Registration, Evaluation,
Authorisation and Restriction of
Chemical substances.
For information on compliance with the
REACH regulation (EC) No. 1907/2006
see www.stihl.com/reach.
Specifications
Displacement: 30.8 cc
Bore: 35 mm
Stroke: 32 mm
Engine power to
ISO 8893:
1.3 kW (1.8 bhp)
at 9,000 rpm
Idle speed: 2,800 rpm
Cut-off speed (rated): 12,300 rpm
Max. output shaft
speed (cutting
attachment): 9,150 rpm
Displacement: 40.2 cc
Bore: 40 mm
Stroke: 32 mm
Engine power to
ISO 8893:
1.6 kW (2.2 bhp)
at 9,000 rpm
Idle speed: 2,800 rpm
Cut-off speed (rated): 12,300 rpm
Max. output shaft
speed (cutting
attachment): 9,150 rpm
Spark plug (resistor
type):
NGK BPMR 7 A,
Bosch WSR 6 F
Electrode gap: 0.5 mm
Fuel tank capacity: 640 cc (0.64 l)
Dry, without cutting attachment and
deflector
FS 120: 6.3 kg
FS 120 R: 6.0 kg
FS 250: 6.3 kg
without cutting
attachment 1765 mm
R Loop handle
with mowing head
FS 120: 101 dB(A)
FS 250: 102 dB(A)
with metal mowing
attachment
FS 120: 99 dB(A)
FS 250: 100 dB(A)
with mowing head
FS 120: 112 dB(A)
FS 250: 112 dB(A)
with metal mowing
attachment
FS 120: 110 dB(A)
FS 250: 112 dB(A)
with mowing
head
Handle,
left
Handle,
right
FS 120: 5.9 m/s
2
4.2 m/s
2
FS 120 R: 8.0 m/s
2
10.5 m/s
2
FS 250: 6.4 m/s
2
3.9 m/s
2
with metal mow-
ing attachment
Handle,
left
Handle,
right
FS 120: 5.9 m/s
2
3.9 m/s
2
FS 120 R: 6.5 m/s
2
8.9 m/s
2
FS 250: 5.9 m/s
2
3.9 m/s
2

Stihl FS 120 R Specifications

General

Brand	Stihl
Model	FS 120 R
Category	Trimmer
Language	English