TABLE OF CONTENTS
PB-8010, EB810
1
Page Page
1 SERVICE INFORMATION
..................................... 2
1-1 Specifi cations ...................................................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 fi lter ..........................................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 muffl er 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