Stihl MS 391 Instruction Manual

MS 311, MS 391
English
52
1 Shroud Lock
2 Carburetor Adjusting Screws
3 Spark Plug Boot
4 Shutter (Summer and Winter
Operation)
5 Decompression Valve
(Automatically Resetting)
6 Chain Brake
7 Chain Sprocket
8 Chain Sprocket Cover
9 Chain Catcher
10 Side Chain Tensioner
11 Bumper Spike
12 Guide Bar
13 Oilomatic Saw Chain
14 Oil Filler Cap
15 Muffler (with Spark Arresting
Screen, not Fitted on all Markets)
16 Front Hand Guard
17 Front Handle (Handlebar)
18 Starter Grip
19 Fuel Filler Cap
20 Master Control Lever
21 Throttle Trigger
22 Throttle Trigger Lockout
23 Rear Handle
24 Rear Hand Guard
# Serial Number
Main Parts
19
3
11
14
24
22
23
4903BA009 KN
15
16
17
18
20
21
4
7
#
5
2
10
9
12
13
1
6
8

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