Stihl FS 120 - Table of Contents

5/20/2018
STIHL FS 350 Service manual.pdf - slidepdf.com
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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
© 2000, Andreas Stihl AG & Co., Waiblingen
CONTENTS
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FS 120, 200, 300, 350, 400, 450, FR 350, 450 1