Specifications; Special Accessories - Stihl MS 381 Instruction Manual

Specifications

Engine
STIHL single cylinder two-stroke engine
Displacement 72.2 cm
Bore 52 mm
Stroke 34 mm
MS 381
Engine power
to ISO 7293 3.9 kW
(5.3 HP)
2)
MS 381 N
Engine power
to ISO 7293 3.6 kW
(4.9 HP)
Idle speed 2,400 rpm
Maximum permissible
engine speed with bar
and chain 12,500 rpm
Sound pressure level
1)
L to ISO 22868 102,3 dB (A)
peq
Sound power level
1)
L to ISO 9207 113,9 dB (A)
weq
Vibration
measurement a
eq
1)
to ISO 7505
Left handle 5.2 m/s
Right handle 7.1 m/s
1)
Weighted equivalent level includes
idling, full load and racing with the
same duration of exposure
2)
Low compression engine
MS 381
Magneto ignition system,
electronic
Spark plug (suppressed)
3
Bosch WSR 6 F, NGK BPMR 7 A,
Electrode gap: 0.5 mm
Carburetor
All position diaphragm carburetor with
integral fuel pump
Fuel tank capacity: 0.68 l (680 cm
Oil tank capacity: 0.36 l (360 cm
Weight (without cutting attachment)
6.6 kg
Cutting Attachment:
Guide bars
Rollomatic, Duromatic
Cutting lengths
Rollomatic 37, 40, 45, 50, 55 and 63 cm
Duromatic 37, 40, 45, 50, 55 and 63 cm
Oilomatic chain
9.32 mm (3/8") Rapid
Drive link gauge: 1.6 mm
Chain sprockets
7 and 8-tooth rim sprockets
7-tooth spur sprocket
2
2
Chain lubrication
Fully automatic, speed-controlled rotary
piston oil pump. Additional manual oil
flow control

Special Accessories

File holder with round file
Filing gauge
Reference gauges
STIHL lubricating grease
STIHL filler nozzle for STIHL
canisters
helps avoid spills and overfilling during
3
refueling.
)
3
)
Contact your STIHL dealer for more
information on these and other special
accessories.
English
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