Echo CS-2511TES - Table of Contents

TABLE OF CONTENTS
CS-2511TES
251Ts, 251TCs
1
CONTENTS
1 SERVICE INFORMATION ������������������������������������ 2
1-1 Specications ......................................................2
1-2 Technical data .....................................................3
1-3 Torque limits ........................................................ 4
1-4 Special maintenance materials ...........................4
1-5 Service limits .......................................................5
1-6 Special tools .......................................................6
2 STARTER SYSTEM (ES-start / S-start) ��������������7
2-1 Disassembling starter assembly .........................8
2-2 Replacing starter rope ........................................9
2-3 Assembling starter ............................................10
2-4 Replacing starter pawl ......................................12
3 IGNITION SYSTEM �������������������������������������������� 13
3-1 Troubleshooting guide .......................................14
3-2 Testing spark ..................................................... 15
3-3 Inspecting spark plug ........................................16
3-4 Replacing spark plug cap and coil.....................16
3-5 Inspecting ignition switch ..................................17
3-6 Replacing ignition switch ..................................17
3-7 Replacing ignition coil .......................................22
3-8 Setting pole shoe air gaps ................................23
3-9 Inspecting yweel and key ................................23
4 FUEL SYSTEM ��������������������������������������������������25
4-1 Inspecting air lter .............................................26
4-2 Replacing air cleaner cover latch ......................28
4-3 Inspecting fuel cap and fuel strainer .................28
4-4 Inspecting fuel tank and line .............................29
4-5 Inspecting and replacing tank vent ...................30
4-6 Replacing purge bulb ........................................32
4-7 Replacing fuel line and fuel return line ..............33
4-8 Adjusting carburetor ..........................................35
4-8-1 General adjusting rules ..................................35
4-8-2 Initial setting Throttle adjust screw, L mixture
needle and H mixture needle...................................35
4-8-3 Adjusting carburetor .......................................36
4-9 Testing carburetor .............................................37
4-10 Inspecting crankcase pulse passage ..............38
4-11 Inspecting metering lever height ......................38
4-12 Inspecting inlet needle valve ...........................39
4-13 Inspecting diaphragm and others ....................40
4-14 Replacing welch plug ......................................40
4-15 Installing carburetor ......................................... 41
5 CLUTCH SYSTEM ���������������������������������������������42
5-1 Inspecting clutch parts ......................................42
5-2 Replacing clutch parts ......................................44
5-3 Installing clutch assembly .................................44
6 CHAIN BRAKE SYSTEM �����������������������������������45
6-1 Replacing brake lever and torsion spring .........45
6-2 Inspecting chain brake parts .............................47
7 SAW CHAIN LUBRICATION SYSTEM �������������� 49
7-1 Inspecting oil cap and strainer .......................... 49
7-2 Inspecting oil tank vent ...................................... 50
7-3 Inspecting and replacing oil line ........................ 51
7-4 Inspecting worm gear ....................................... 52
7-5 Cleaning and replacing auto-oiler assembly ..... 53
8 ENGINE �������������������������������������������������������������� 56
8-1 Testing cylinder compression ............................ 57
8-2 Cleaning cooling air passages .......................... 58
8-3 Inspecting mufer and exhaust port .................. 59
8-4 Testing crankcase and cylinder sealings ........... 60
8-5 Removing engine block .................................... 61
8-6 Inspecting cylinder ............................................ 62
8-7 Inspecting piston and piston ring ...................... 63
8-8 Replacing oil seal .............................................. 64
8-9 Inspecting crankcase and crankshaft ............... 65
8-10 Replacing oil seal and ball bearing.................. 66
8-11 Assembling crankshaft and crankcase ............ 67
8-12 Installing piston ring and cylinder .................... 68
9 HANDLE AND CONTROL SYSTEM ����������������� 69
9-1 Replacing lifting hook ........................................ 70
9-2 Replacing throttle control parts.......................... 72
9-3 Replacing front handle and spring..................... 73
9-4 Replacing rear handle and springs.................... 74
10 GUIDE BAR MOUNTING SYSTEM ����������������� 77
10-1 Replacing nut for xing guide bar ................... 77
10-2 Replacing chain tensioner .............................. 78
10-3 Replacing guide bar stud................................ 79
11 MAINTENANCE GUIDE ������������������������������������ 80
11-1 Troubleshooting guide ..................................... 80
11-2 Disassembly chart ........................................... 82
11-3 Service intervals .............................................. 83