Chapter 1: Introduction......................................................................................................... 1
Professional Shop Manual intent........................................................................................ 1
Assembly ............................................................................................................................ 1
Maintenance ........................................................................................................................3
Spark plugs .........................................................................................................................3
Air filters............................................................................................................................. 4
Oil type and capacity .......................................................................................................... 5
Changing the oil.................................................................................................................. 5
Fuel .....................................................................................................................................6
Fuel filters........................................................................................................................... 6
Valve lash ........................................................................................................................... 7
Spark arrestor ......................................................................................................................8
Cleaning the engine ............................................................................................................8
General torque specifications.............................................................................................. 9
Maintenance Chart ..............................................................................................................9
Chapter 2: Basic Troubleshooting .......................................................................................10
Definitions ........................................................................................................................10
Introduction .......................................................................................................................10
Steps to troubleshooting.................................................................................................... 10
Define the problem ........................................................................................................... 10
Identify factors that could cause the problem................................................................... 11
Repairing the problem ......................................................................................................15
Prime test ..........................................................................................................................15
Leak down test ..................................................................................................................16
Compression test ...............................................................................................................17
PCV testing....................................................................................................................... 18
Chapter 3: Air Intake systems .............................................................................................19
Snow engines ....................................................................................................................19
Heat box ............................................................................................................................19
Chore engines ...................................................................................................................21
Air filters........................................................................................................................... 21
Air filter base and intake elbow........................................................................................ 22
Carburetor Insulator ..........................................................................................................23
Table of Contents
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