TABLE OF CONTENTS
PB-8010, EB810 1
Page Page
1 SERVICE INFORMATION.....................................2
1-1 Specifications ...................................................2
1-2 Technical data ..................................................3
1-3 Torque limits .....................................................4
1-4 Special repairing materials...............................4
1-5 Service limits ....................................................5
1-6 Special tools.....................................................6
2 STARTER SYSTEM..............................................7
2-1 Disassembling starter assembly.......................8
2-2 Replacing starter rope......................................9
2-3 Installing rewind spring...................................10
2-4 Assembling starter..........................................12
2-5 Replacing starter pawl....................................13
3 IGNITION SYSTEM.............................................14
3-1 Troubleshooting guide....................................15
3-2 Testing spark ..................................................16
3-3 Inspecting spark plug .....................................16
3-4 Replacing spark plug cap and coil..................17
3-5 Inspecting ignition switch................................17
3-6 Replacing ignition switch................................18
3-7 Inspecting ignition coil resistance...................21
3-8 Replacing ignition coil.....................................22
3-9 Setting pole shoe air gaps..............................22
3-10 Inspecting and replacing magneto rotor.........23
3-11 Inspecting and replacing woodruff key...........23
4 FUEL SYSTEM ...................................................24
4-1 Inspecting air filter ..........................................25
4-2 Inspecting fuel cap and fuel strainer...............25
4-3 Inspecting fuel tank and line...........................26
4-4 Replacing fuel lines and grommet..................27
4-5 Inspecting tank vent .......................................28
4-6 Replacing carburetor......................................29
4-7 Testing carburetor...........................................30
4-8 Inspecting crankcase pulse passage .............31
4-9 Inspecting metering lever height ....................31
4-10 Inspecting inlet needle valve ..........................32
4-11 Inspecting diaphragm and others...................33
4-12 Inspecting main jet .........................................33
4-13 Adjusting carburetor .......................................34
4-13-1 General adjusting rules ..............................34
4-13-2 Initial setting Throttle adjust screw,
L mixture needle and H mixture needle..........34
4-13-3 Adjusting carburetor ...................................35
4-14 Checking and adjusting throttle cable ............35
5 BACKPACK FRAME ..........................................36
5-1 Removing backpack frame assembly.............37
5-2 Replacing backpack harness .........................38
5-3 Replacing backpack harness .........................39
6 BLOWER SYSTEM.............................................40
6-1 Separating fan case assembly .......................41
6-2 Replacing elbow.............................................42
6-3 Disassembling and assembling fan................43
6-4 Replacing fan case.........................................43
7 ENGINE...............................................................45
7-1 Testing cylinder compression .........................46
7-2 Cleaning cooling air passages .......................46
7-3 Inspecting muffler and exhaust port ...............47
7-4 Testing crankcase and cylinder sealings........48
7-5 Replacing oil seal ...........................................49
7-6 Inspecting cylinder..........................................50
7-7 Inspecting piston and piston ring....................51
7-8 Disassembling crankcase...............................51
7-9 Replacing ball bearings..................................52
7-10 Removing ball bearing in crankcase ..............52
7-11 Assembling crankshaft and crankcase...........53
7-12 Installing piston...............................................53
7-13 Installing piston ring and cylinder ...................54
7-14 Assembling engine assembly and
other parts ......................................................55
8 MAINTENANCE GUIDE......................................56
8-1 Troubleshooting guide....................................56
8-2 Disassembly chart..........................................58
8-3 Service intervals .............................................59
