Stihl MS 391 Instruction Manual

MS 311, MS 391
English
37
Starting the Saw
WARNING
Bystanders must be well clear of the
general work area of the saw.
N Press in the button to open the
decompression valve.
The decompression valve closes as
soon as the engine fires. For this reason
you must press in the button before each
starting attempt.
N Push the hand guard (1) forward –
the chain is locked.
N Press down the trigger lockout (2)
and pull the throttle trigger (3) at the
same time. Set Master Control
lever (4) to:
Choke shutter closed (l)
– if the engine is cold (also use this
position if the engine stopped when
you opened the throttle after
starting)
Starting throttle position (n)
– if the engine is warm, i.e. if it has
been running for about one minute.
N Hold and start your saw as
described.
When engine begins to fire
N Set the Master Control lever (1) to
the starting throttle position (n).
N Press the button to open the
decompression valve.
N Hold and start your saw as
described.
As soon as the engine runs
N Press down trigger lockout and the
blip the throttle trigger (2) – the
Master Control lever (1) moves to
the run position (F) and the engine
settles down to idling speed.
0001BA020 KN
1
4
3
2
0001BA021 KN
0
1
0001BA022 KN
STOP
0
1
2
0001BA023 KN
STOP
0

Stihl MS 391 Specifications

General

Motor type	2-stroke motor
Chain gauge	1.6 mm
Chain pitch	3/8 \
Automatic oiling	Yes
Oil tank capacity	0.35 L
Fuel tank capacity	0.6 L
Engine displacement	64.1 cm³
Engine power	4.4 hp
Power source	Gasoline

Weight and Dimensions

Weight	6200 g