Table Of Contents
Chapter 1 General Information .......................................................................................... 1-1
Engine Identification ....................................................................................................... 1-1
Prior to 1999 ................................................................................................................... 1-1
Short Blocks ................................................................................................................... 1-1
Parts Identification .......................................................................................................... 1-2
Parts List......................................................................................................................... 1-3
Oil and Fuel Specifications ............................................................................................. 1-4
Oil ............................................................................................................................... 1-4
Fuel............................................................................................................................. 1-4
Filling Fuel Tank ......................................................................................................... 1-4
Stopping the Engine and Short Term Storage ................................................................ 1-4
Maintenance and Adjustments ....................................................................................... 1-5
Checking and Changing Oil ........................................................................................ 1-5
Removing Debris from Engine .................................................................................... 1-5
Spark Plug .................................................................................................................. 1-6
Cleaning/replacing Air Cleaner ................................................................................... 1-6
Servicing Paper Filters ............................................................................................... 1-6
Carburetor .................................................................................................................. 1-6
Engine Speed ............................................................................................................. 1-6
Engine Stopping Mechanism ...................................................................................... 1-6
Seasonal Storage ........................................................................................................... 1-7
Fuel System ................................................................................................................ 1-7
Method 1..................................................................................................................... 1-7
Method 2..................................................................................................................... 1-7
Oil ............................................................................................................................... 1-7
Lubricating Cylinder Bore ........................................................................................... 1-7
Quick Maintenance Chart ........................................................................................... 1-7
4-Cycle Engine Theory ................................................................................................... 1-8
Intake .......................................................................................................................... 1-8
Compression ............................................................................................................... 1-8
Power .......................................................................................................................... 1-8
Exhaust ....................................................................................................................... 1-8
Chapter 2 Air Cleaners....................................................................................................... 2-1
General Information ........................................................................................................ 2-1
Air Cleaner Service ......................................................................................................... 2-1
Polyurethane Pre-Filters ............................................................................................. 2-1
To Service Air Cleaner ............................................................................................... 2-2
Carburetion ..................................................................................................................... 2-3
General ....................................................................................................................... 2-3
Identification ............................................................................................................... 2-3
Float Bowl Service .......................................................................................................... 2-3
Rebuilding Carburetor Body ....................................................................................... 2-3
Removing Welch Plug ................................................................................................ 2-3
Chapter 3 Governors and Linkage .................................................................................... 3-1
General Information ........................................................................................................ 3-1
Linkage Assembly/Disassembly ..................................................................................... 3-2
Governor Adjustment ...................................................................................................... 3-2
Speed Controls ............................................................................................................... 3-2
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