1.
Introduction
2
2.
Specifications
3
2.1
Engine
3
2.2
Fuel System
3
2.3
Ignition System
4
2.4
Gearhead
4
2.5
Special Accessories
4
2.5.1
For User
4
2.5.2
For Service
4
2.6
Tightening Torques
5
3.
Clutch
7
3.1
Removing and Installing 7
3.2
Clutch Carrier
8
4.
Engine
9
4.1
Exhaust Muffler/
Spark Arresting Screen 9
4.2
Leakage Test
10
4.2.1
Preparations
10
4.2.2
Pressure Test
11
4.2.3
Vacuum Test
11
4.3
Oil Seals
12
4.4
Exposing the Cylinder 13
4.5
Cylinder and Piston
14
4.5.1
Removal 14
4.5.2
Installation
15
4.6
Piston Rings
17
4.7
Crankcase
17
4.7.1
Removing Crankshaft
17
4.7.2
Installing Crankshaft
20
4.8
Decompression Valve 23
5.
Ignition System
23
5.1
Spark Plug Boot
23
5.2
Ignition Lead
(FS 400/450, FR 450) 24
5.3
Ignition Module
25
5.3.1
Ignition Timing
26
5.3.2
Removing and Installing
(FS 120...350, FR 350) 26
5.3.3
Removing and Installing
(FS 400/450, FR 450) 27
5.4
Flywheel
28
5.5
Short Circuit Wire
29
6.
Rewind Starter
30
6.1
General
30
6.2
Rewind Spring
30
6.2.1
Replacing
30
6.2.2
Tensioning
31
6.3
Starter Rope/Starter
Grip (ElastoStart)
32
7.
Throttle Control
33
7.1
Throttle Trigger/Interlock
Lever (Bike Handle)
33
7.2
Contact Springs/Detent
Spring in Control Handle
(Bike Handle)
34
7.3
Throttle Trigger/Interlock
Lever (Loop Handle)
34
7.4
Slide Control
(Loop Handle)
35
7.5
Throttle Cable
36
7.5.1
Replacing
36
7.5.2
Adjusting
37
8.
Fuel System
38
8.1
Air Filter
38
8.2
Carburetor
39
8.2.1
Removing and Installing
(FS 120...350, FR 350) 39
8.2.2
Removing and Installing
(FS 400/450, FR 450) 40
8.2.3
Leakage Test
41
8.2.4
Adjusting
(three screws)
42
8.2.5
Adjusting
(one screw)
43
8.3
Tank Vent
44
8.4
Pickup Body
44
8.5
Fuel Tank/
Hoses
45
8.6
Manual
Fuel Pump
47
9.
AV System
47
9.1
Repair
(FS 120/200)
47
9.2
Repair
(FS 300...450)
48
9.3
Repair
(FR 350/450)
50
10.
Shaft
51
10.1
Bike Handle
(FS 120/200)
51
10.2
Bike Handle
(FS 300...450)
51
10.3
Loop Handle
52
10.4
Drive Shaft/
Flexible Liner
52
10.5
Flexible Shaft
(FR 350/450)
53
10.6
Drive Tube
54
10.7
Housing
(FR 350/450)
56
11.
Cutting Tool
Drive
56
11.1
Gearhead
56
11.2
Clutch Drum
57
12.
Support Frame
(FR 350/450)
58
12.1
Repair
58
13.
Special Servicing
Tools and Aids
59
13.1
Special Servicing Tools 59
13.2
Servicing Aids
61
© 1997, Andreas Stihl, Waiblingen
CONTENTS
FS 120, 200, 300, 350, 400, 450, FR 350, 450
1
Summary of Contents for FS 350
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