Stihl Ms 201 User Manual

1MS 201, MS 201 C, MS 201 T, MS 201 TC
q
© ANDREAS STIHL AG & Co. KG, 2012
RA_577_00_01_02
1. Introduction and
Safety Precautions 3
1.1 Introduction 3
1.2 Safety Precautions 4
2. Specifications 5
2.1 Engine 5
2.2 Fuel System 5
2.3 Ignition System 5
2.4 Chain Lubrication 5
2.5 Tightening Torques 6
3. Troubleshooting 8
3.1 Clutch 8
3.2 Chain Drive,
Chain Brake, Chain
Tensioner 9
3.3 Chain Lubrication 10
3.4 Rewind Starter 11
3.5 Ignition System 13
3.6 Carburetor 14
3.7 Engine 17
4. Clutch 18
4.1 Clutch 18
4.2 Clutch Drum 19
5. Chain Brake 20
5.1 Checking Operation 20
5.2 Brake Band 20
5.3 Brake Lever 21
5.4 Flat Spring 23
5.5 Pins 23
5.6 Chain Tensioner 24
5.6.1 Chain Catcher 25
5.7 Bar Mounting Stud 25
5.8 Collar Nut for
Sprocket Cover 25
6. Engine 27
6.1 Muffler 27
6.1.1 Insulating Plate 28
6.2 Leakage Test 29
6.2.1 Preparations 29
6.2.2 Vacuum Test 30
6.2.3 Pressure Test 31
6.3 Oil Seals 31
6.3.1 Ignition Side 31
6.3.2 Clutch Side 32
6.4 Cylinder 33
6.5 Crankshaft /
Crankcase 34
6.5.1 Roller Bearings /
Crankcase 37
6.6 Piston 38
6.7 Piston Rings 41
7. Ignition System 42
7.1 Ignition Timing 42
7.2 Ignition Module 42
7.3 Testing the
Ignition Module 45
7.4 Spark Plug Boot /
Ignition Lead 46
7.5 Flywheel 47
7.6 Short Circuit Wire 48
7.6.1 Testing 48
7.6.2 Removing and
Installing (MS 201) 48
7.6.3 Removing and
Installing (MS 201 T) 51
7.6.4 Ground Wire 52
7.6.5 Contact Spring
(MS 201) 53
7.6.6 Contact Springs
(MS 201 T) 54
7.7 Ignition System
Troubleshooting 56
8. Rewind Starter 59
8.1 General 59
8.2 Fan Housing 59
8.3 Pawls 60
8.4 Rope Rotor 61
8.4.1 Rope Rotor with
ErgoStart 61
8.5 Starter Rope / Grip 62
8.6 Tensioning the
Rewind Spring 64
8.7 Replacing the
Rewind Spring 65
9. AV Elements 67
9.1 Annular Buffer on Fuel
Tank (MS 201) 67
9.1.1 Annular Buffer on Fuel
Tank (MS 201 T) 67
9.2 AV Spring on Oil Tank
(MS 201) 68
9.2.1 AV Spring on Oil Tank
(MS 201 T) 69
9.3 Front Handle /
AV Spring (MS 201) 70
9.3.1 Front Handle /
AV Spring (MS 201 T) 71
9.4 Stop Buffer on Handle
Housing (MS 201) 72
9.5 Stop Buffer on Tank
Housing (MS 201) 73
10. Control Levers 74
10.1 Master Control Lever 74
10.1.1 Switch Shaft (MS 201) 74
10.1.2 Switch Shaft
(MS 201 T) 75
10.2 Throttle Trigger /
Lockout Lever
(MS 201) 76
10.3 Throttle Trigger /
Lockout Lever
(MS 201 T) 77
10.3.1 Choke and Throttle
Rods (MS 201) 78
10.3.2 Choke and Throttle
Rods (MS 201 T) 80
10.4 Handle Housing
(MS 201) 82
10.5 Handle Housing
(MS 201 T) 86
11. Chain Lubrication 89
11.1 Pickup Body 89
11.2 Oil Suction Hose 89
11.3 Connector /
Oil Pressure 89
11.4 Oil Pump 90
11.5 Valve 91
Contents

Stihl Ms 201 Specifications

General

Brand	Stihl
Model	Ms 201
Category	Chainsaw
Language	English