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CONTENTS
Section
Tifle
Page
1
.
SPECIFICATIONS
.......................................................................................................
1
2
.
PERFORMANCE
........................................................................................................
2
2-1
MAXIMUM OUTPUT
.........................................................................................................
2
2-2
MAXIMUM TORQUE
........................................................................................................
2
2-3
PERFORMANCE CURVES
..............................................................................................
3
3
.
FEATURES
..................................................................................................................
5
4
.
GENERAL DESCRIPTION
OF
ENGINE COMPONENTS
..........................................
6
4-1
CYLINDER AND CRANKCASE
........................................................................................
6
4-2
MAIN
BEARING
COVER
..................................................................................................
6
4-3
CRANKSHAFT
..................................................................................................................
6
4-4
CONNECTING
ROD
AND PISTON
..................................................................................
7
4-5
PISTON RINGS
................................................................................................................
7
4-6
CAMSHAFT
......................................................................................................................
7
4-7
CYLINDER HEAD
.............................................................................................................
8
4-8
VALVE ARRANGEMENT
..................................................................................................
8
4-9
GOVERNOR SYSTEM
.....................................................................................................
8
4-1
0
COOLING SYSTEM
........................................................................................................
9
4-11
LUBRICATION SYSTEM
.................................................................................................
9
4-12
IGNITION SYSTEM
........................................................................................................
9
4-1
3 CHARGING SYSTEM
.....................................................................................................
9
4-14
CARBUREJOR
.............................................................................................................
10
4-1
5
AIR CLEANER
..
..........................!.................................................................................
10
4-1
6
FUEL PUMP
..................................................................................................................
10
4-17
SECTIONAL
VIEW
OF
ENGINE
....................................................................................
11
5
.
DISASSEMBLY
AND
REASSEMBLY
.......................................................................
13
5-1
PREPARATIONS AND SUGGESTIONS
.........................................................................
13
5-2
SPECIAL
TOOLS
............................................................................................................
13
5-3 DISASSEMBLY PROCEDURES
.....................................................................................
14
5-4 REASSEMBLY PROCEDURES
.............
........................................................................
27
5-5
BREAK-IN OPERATION
.................................................................................................
43
6
.
MAGNETO
................................................................................................................
44
6-1
OPERATION
AND
FUNCTION
.......................................................................................
44
7
.
LUBRICATION
SYSTEM
..........................................................................................
46
7-1
OPERATION AND FUNCTION
.......................................................................................
46