WM 130/170/270 Repair Table of Contents
wc_br0159563enTOC.fm 3
9.16 Rocker Cover and Spark Plug ............................................................ 65
9.17 Case Baffle ......................................................................................... 66
9.18 Flywheel and Starter Pulley ................................................................ 67
9.19 Ignition Coil ......................................................................................... 67
9.20 Speed Control Assembly and Carburetor ........................................... 68
9.21 Governor Lever .................................................................................. 69
9.22 Air Cleaner Base ................................................................................ 70
9.23 Governor System Adjustment ............................................................ 70
9.24 Muffler ................................................................................................ 71
9.25 Fuel Tank ........................................................................................... 72
9.26 Blower Housing and Recoil Starter .................................................... 73
9.27 Stop Switch ........................................................................................ 74
9.28 Air Cleaner ......................................................................................... 75
9.29 External Inspection ............................................................................. 76
9.30 Engine Oil ........................................................................................... 76
9.31 Filling Engine With Oil ........................................................................ 77
9.32 Break-in Operation ............................................................................. 78
10. Sub Systems 79
10.1 Automatic Decompression System .................................................... 79
10.2 Fuel System Diagram ...................................................................... 80
10.3 Carburetor .......................................................................................... 81
10.4 Carburetor Overhaul ........................................................................... 82
10.5 Carburetor Exploded View ................................................................. 83
10.6 Recoil Starter ...................................................................................... 84
10.7 Checking the Recoil Starter After Reassembly .................................. 88
10.8 Other Starter Checks .......................................................................... 89
11. Electrical 90
11.1 Magneto ............................................................................................. 90
11.2 Inspecting the Magneto ...................................................................... 90
11.3 WM 130/WM170 Ignition Coil Internal Circuit ..................................... 91
11.4 Basic Theory ...................................................................................... 91
11.5 WM 270 Ignition Coil Internal Circuit .................................................. 92
11.6 Ignition Timing Characteristics ........................................................ 92
11.7 WM 270 Basic Theory ........................................................................ 93
11.8 Wiring Diagram ................................................................................... 94