1997 Yamaha 9.9-100 HP Four-Stroke Outboards Workshop Service Repair Manual PDF Download

Models Covered:

Yamaha 9.9 HP (1985-1999)
Yamaha 15 HP (1985-1999)
Yamaha 25 HP (1985-1999)
Yamaha 40 HP (1985-1999)
Yamaha 50 HP (1985-1999)
Yamaha 80 HP (1985-1999)
Yamaha 100 HP (1985-1999)

This manual can be used by anyone from a first time owner/amateur to a professional technician.Easy to read type,And give you all the information needed to do the procedure correctly.Keep this shop manual handy and use it often. Performing routine,preventive maintenance will save you time & money by helping to prevent premature failure and unnecessary repairs.

Manual Contents:

QUICK REFERENCE DATA

CHAPTER ONE / GENERAL INFORMATION
Manual organization / Notes, cautions and warnings / Torque specifications / Engine operation / Fasteners / Lubricants / Gasket sealant / Galvanic corrosion / Protection from galvanic corrosion / Propellers / Specifications

CHAPTER TWO / TOOLS AND TECHNIQUES
Safety first / Basic hand tools / Test equipment / Service hints / Special tips / Mechanic's techniques / Specifications

CHAPTER THREE / TROUBLESHOOTING AND TESTING
Test equipment / Troubleshooting preparation / Operating requirements / Starting difficulty / Fuel system component testing / Ignition system testing / Warning system / Starting system / Charging system / Fuses and wire harness / Trim system / Electrical testing / Power head / Cooling system / Gearcase / Specifications

CHAPTER FOUR / LUBRICATION, MAINTENANCE AND TUNE-UP
Lubrication and maintenance / Pre-operational checklist / Post-operational checklist / Routine maintenance / Fuel requirements / Fuel filter service / Engine oil requirements / Oil drain and fill locations / Pumping oil from the engine / Draining oil / Filling the engine with oil / Oil filter / Engine oil and filter change / Oil screen service / Removing carbon deposits from the combustion chambers / Power head anodes / Timing belt and sprocket inspection / Hoses and clamps inspection / Thermostat inspection / Gearcase lubricant / Changing the gearcase lubricant / Gearcase anode inspection / Water pump and impeller inspection / Propeller shaft inspection and lubrication / Swivel tube and tilt tube lubrication / Steering cable lubrication / Trim system fluid level check and change / Starter motor maintenance / Battery maintenance / Throttle and shift linkage lubrication / Tune-up / Compression test / Spark plugs / Valve adjustment / Carburetor adjustment / Ignition timing / Run test / Special maintenance requirements / Submersion / Storage / Corrosion prevention / Specifications

CHAPTER FIVE / SYNCHRONIZATION AND ADJUSTMENT
Fuel system adjustment / Carburetor synchronization / Valve adjustment / Cable and linkage adjustment / Specifications

CHAPTER SIX / FUEL SYSTEM
Servicing the fuel system / Fuel tank / Gloat level (9.9, 25 and 80-100 hp models) / Specifications

CHAPTER SEVEN / ELECTRICAL AND IGNITION SYSTEM
Starting system / Starter motor / Charging system / Ignition system / Warning system / Specifications

CHAPTER EIGHT / POWER HEAD
Flywheel removal and installation / Cylinder head / Cylinder head / Oil pump / Inspection / Power head installation / Bearing selection / Specifications

CHAPTER NINE / GEARCASE AND DRIVE SHAFT HOUSING
Gearcase operation / Gearcase identification / Propeller removal and installation / Gearcase removal and installation / Water pump / Gearcase disassembly and assembly / Inspection / Drive shaft housing removal and installation / Specifications

CHAPTER TEN / REWIND STARTER

CHAPTER ELEVEN / POWER TRIM AND MIDSECTION
Power trim system / Fluid filling and air bleeding / Midsection / Specifications

CHAPTER TWELVE / REMOTE CONTROL

INDEX

WIRING DIAGRAMS