Contents
1.
Introduction and
1.1
Introduction
1.2
Safety Precautions
2.
2.1
2.2
2.3
2.4
2.5
3.
3.1
3.2
Chain Drive,
Chain Tensioner
3.3
Chain Lubrication
3.4
3.5
3.6
3.7
4.
4.1
5.
5.1
5.2
5.3
5.4
Cam Lever
5.5
Pins
5.6
Chain Tensioner
5.7
Bar Mounting Studs
MS 311, MS 391
6.
Engine
3
6.1
Muffler
3
6.2
Leakage Test
4
6.2.1
Preparations
6.2.2
Vacuum Test
6.2.3
Pressure Test
5
6.3
Oil Seals
6.4
Shroud
5
6.5
Cylinder / Crankshaft
5
6.6
Bearings / Crankshaft 35
5
6.7
Piston
5
6.8
Piston Rings
6
6.9
Decompression Valve 38
8
7.
Ignition System
8
7.1
Ignition Timing
7.2
Preseparator
7.3
Ignition Module
9
7.4
Testing the
10
Ignition Module
11
7.5
Spark Plug Boot /
12
Ignition Lead
13
7.6
Flywheel
16
7.7
7.7.1
Testing
7.7.2
Removing and
17
7.7.3
Ground Wire
19
7.7.4
Contact Spring
7.8
Ignition System
Troubleshooting
20
20
8.
Rewind Starter
20
22
8.1
General
24
8.2
25
8.2.1
Segment
25
8.3
Pawls
26
8.4
Rope Rotor
8.5
Starter Rope / Grip
8.6
Tensioning the
Rewind Spring
8.7
Replacing the
Rewind Spring
27
9.
Servicing the
AV System
27
28
9.1
Buffer on Oil Tank
28
9.2
AV Spring on Oil Tank 57
29
9.3
AV Spring on
29
Fuel Tank
30
9.4
AV Spring on
31
Front Handle
32
9.5
Stop Buffer at
36
9.6
Annular Buffer at
38
Ignition Side
9.7
39
10.
Control Levers
39
10.1
Master Control Lever
39
10.2
Throttle Trigger/Interlock
39
Lever
10.2.1 Choke Rod
41
10.2.2 Throttle Rod
42
43
11.
Chain Lubrication
44
44
11.1
Pickup Body
11.2
Oil Suction Hose
44
11.3
Oil Pump
46
11.4
Valve
46
48
51
51
51
51
51
52
53
54
55
q
© ANDREAS STIHL AG & Co. KG, 2009
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