Stihl MS 341 Shop Manual

Online version - not for reprint
1MS 341, MS 361, MS 361 C
q
© ANDREAS STIHL AG & Co. KG, 2004
Contents
1. Introduction 3
2. Safety Precautions 4
3. Specifications 5
3.1 Engine 5
3.2 Fuel System 5
3.3 Ignition System 5
3.4 Chain Lubrication 5
3.5 Tightening Torques 6
4. Troubleshooting
Chart 8
4.1 Clutch, Chain Drive,
Chain Brake,
Chain Tensioner 8
4.2 Rewind Starter 10
4.3 Chain Lubrication 11
4.4 Ignition System 12
4.5 Carburetor 13
4.6 Engine 16
5. Clutch, Chain Drive,
Chain Brake and
Chain Tensioner 17
5.1 Clutch Drum / Chain
Sprocket 17
5.2 Replacing the
Chain Catcher 18
5.3 Spiked Bumper 18
5.4 Clutch 19
5.5 Checking Operation
of Chain Brake 21
5.5.1 Removing and Installing
(without
QuickStop Super) 21
5.5.2 Removing and Installing
(with
QuickStop Super) 24
5.5.3 Brake Cable 28
5.5.4 Checking Play 28
5.5.5 Adjusting Play 29
5.5.6 Checking Operation of
Coasting Brake 30
5.6 Chain Tensioner 31
5.7 Bar Mounting Studs 32
6. Engine 32
6.1 Muffler/Spark
Arresting Screen 32
6.2 Shroud 33
6.3 Leakage Test 33
6.3.1 Preparations 34
6.3.2 Pressure Test 35
6.3.3 Vacuum Test 35
6.4 Oil Seals 36
6.5 Cylinder and Piston 37
6.5.1 Removing 37
6.5.2 Installing 39
6.6 Piston Rings 42
6.7 Crankcase/
Crankshaft 43
6.7.1 Removing 43
6.7.2 Installing 45
6.8 Decompression Valve 49
7. Ignition System 49
7.1 Ignition Module 49
7.1.1 Ignition Timing 50
7.1.2 Removing and
Installing 50
7.1.3 Testing the
Ignition Module 51
7.1.4 Ignition Lead /
Spark Plug Boot 52
7.1.5 Flywheel 53
7.2 Contact Spring 54
7.3 Testing Wiring
Harness 55
7.4 Ignition System
Troubleshooting 56
8. Rewind Starter 59
8.1 General 59
8.2 Removing and
Installing 59
8.3 Pawls 59
8.4 Rope Rotor 60
8.5 Starter Rope / Grip 60
8.6 Tensioning 61
8.7 Segment 62
8.8 Starter Rope Guide
Bushing 63
8.9 Replacing the
Rewind Spring 64
9. AV System 65
9.1 Repair 65
9.1.1 Spring between Front
Handle and Cylinder 65
9.1.2 Annular Buffer between
Tank Housing and
Crankcase 65
9.1.3 Spring, Annular Buffer
between Crankcase
and Tank Housing 66
9.1.4 Stop Buffer between
Crankcase and Tank
Housing 67
10. Master Control /
Handle System 67
10.1 Switch Shaft 67
10.2 Throttle Trigger /
Interlock Lever 68
10.2.1 Without
QuickStop Super 68
10.2.2 With
QuickStop Super 69
10.3 Front Handle 71
11. Chain Lubrication 71
11.1 Pickup Body /
Suction Hose 71
11.2 Valve 72
11.2.1 Cleaning 72
11.2.2 Replacing 73
11.3 Oil Pump 73
11.3.1 Removing and
Installing 73
11.3.2 Servicing 74

Stihl MS 341 Specifications

General

Brand	Stihl
Model	MS 341
Category	Chainsaw
Language	English