Yamaha 20C Service Manual page 6

GENERAL INFORMATION
HOW TO USE THIS MANUAL...................................................................................1-1
MANUAL FORMAT ...............................................................................................1-1
THE ILLUSTRATIONS..........................................................................................1-1
REFERENCES .....................................................................................................1-2
SPECIFICATIONS ................................................................................................1-2
WARNINGS, CAUTIONS AND NOTES................................................................1-3
SYMBOLS.............................................................................................................1-4
IDENTIFICATION........................................................................................................1-5
SERIAL NUMBER.................................................................................................1-5
ENGINE SERIAL NUMBER..................................................................................1-5
STARTING SERIAL NUMBERS ...........................................................................1-5
SAFETY WHILE WORKING ......................................................................................1-6
FIRE PREVENTION .............................................................................................1-6
VENTILATION.......................................................................................................1-6
SELF-PROTECTION ............................................................................................1-7
OILS, GREASES AND SEALING FLUIDS ...........................................................1-7
GOOD WORKING PRACTICES...........................................................................1-8
DISASSEMBLY AND ASSEMBLY ........................................................................1-8
SPECIAL TOOLS .....................................................................................................1-10
SPECIAL TOOLS FOR TUNE-UP ......................................................................1-10
SPECIAL TOOLS FOR ENGINE SERVICE .......................................................1-10
SPECIAL TOOLS FOR CRANK JIG ASSY <P/N : 90890-02421> ....................1-10
SPECIAL TOOLS FOR LOWER UNIT SERVICE...............................................1-11
SEALING AGENTS AND LUBRICANTS ............................................................1-11
GENERAL SPECIFICATIONS ...................................................................................2-1
MAINTENANCE SPECIFICATIONS ..........................................................................2-3
POWER UNIT.......................................................................................................2-3
LOWER UNIT .......................................................................................................2-4
ELCTRICAL ..........................................................................................................2-5
DIMENSIONS .......................................................................................................2-6
CONTENTS
CHAPTER 1
CHAPTER 2
SPECIFICATIONS
E