iii
Chapter 7: Ignition System 81
Troubleshooting the ignition system ............................................................... 81
Stop switch ..................................................................................................... 82
Remote (ignition) stop switch ......................................................................... 83
The module .................................................................................................... 85
Module removal .............................................................................................. 86
Installing the module and setting the air gap .................................................. 86
Flywheel ......................................................................................................... 87
The spark plug ................................................................................................ 88
Cleaning the spark plug .................................................................................. 88
Inspection of the spark plug ............................................................................ 88
Spark plug removal ......................................................................................... 88
Chapter 8: Exhaust
Summer engines ............................................................................................. 89
Spark arrestor ................................................................................................. 89
To remove/replace the muffler ........................................................................ 90
Snow engines ................................................................................................. 91
Chapter 9: Cylinder Head
Valves ............................................................................................................. 97
Push rod bushings ........................................................................................ 100
Chapter 10: Crankshaft, piston and Connecting Rod
Crank shaft inspection .................................................................................. 106
Piston Inspection ........................................................................................... 107
Connecting rod inspection ............................................................................ 108
Cylinder inspection ........................................................................................ 109
Bearings ........................................................................................................ 110
Reassembly .................................................................................................. 111
Engine specifications chart ........................................................................... 114
Engine torque values chart ........................................................................... 118
Chapter 11: Failure Analysis
Abrasive Ingestion ........................................................................................ 119
Insufficient lubrication ................................................................................... 122
Engine Overspeed ........................................................................................ 123
Overheated ................................................................................................... 124
Mechanical Breakage/ Wear ......................................................................... 125
Detonation/preignition ................................................................................... 125
To Next Page
Loading...
